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Sex and ethnicity modified high 1-year mortality in patients in Singapore with newly diagnosed atrial fibrillation

Atrial fibrillation (AF) is the most common clinically significant arrhythmia and is associated with increased risks of stroke, dementia, heart failure (HF) and death.1...

Different strokes for different folks

Atrial fibrillation (AF) remains the most common arrhythmia since William Harvey’s observation of fibrillating auricles in open chest animal models in 1628. Willem Einthoven...

Interaction of sex and diabetes in Asian patients with heart failure with mildly reduced left ventricular ejection fraction

Diabetes mellitus (DM) is a common comorbidity worldwide with global prevalence among adults above 18 years of age increasing from 4.7% in 1980 to...

Impact of sex and diabetes in patients with heart failure with mildly reduced ejection fraction

With increasing global awareness of sex differences in the heart failure population and the new entity of heart failure with mildly reduced ejection fraction...

Iatrogenic atrial septal defect after catheter ablation—to close or not to close?

Dear Editor, Transseptal access to the left heart is increasingly performed for electrophysiological procedures and for structural heart disease interventions such as balloon mitral valvuloplasty...

Cardiac sarcoidosis: Difficulties in diagnosis and treatment

Sarcoidosis is a multisystem, granulomatous disorder of unknown aetiology. It affects the lungs in 90% of cases, but is also known to affect other...

Out-of-hospital cardiac arrest in Singapore: Can we do better?

Cardiac arrests are unpredictable events that frequently result in death or significant residual morbidity among survivors. These sudden events affect not only the individual,...

Optimum follow-up period of arthroscopic and mini-open rotator cuff repairs

Dear Editor, Rotator cuff disorders are the most common cause of disability related to the shoulder,1 and rotator cuff repairs—via mini-open or arthroscopic techniques—are...

Sepsis, cardiovascular events and short-term mortality risk in critically ill patients

Sepsis is defined as “life-threatening organ dysfunction caused by a dysregulated host immune response to infection”.1 It is one of the most common conditions...

Sepsis and cardiovascular events: The story so far

Sepsis is a state of life-threatening organ dysfunction that results from a dysregulated host immune response to infection.1 Sepsis is a common condition that...

Previous history of hyperthyroidism in emergency department patients with atrial fibrillation does not increase the risk of thromboembolism and death

Dear Editor, Atrial fibrillation (AF) is frequently encountered in the emergency department (ED) and is a major risk factor for thromboembolic events. The clinical decision...

Pressures, indexes and peripheral arterial disease: Time to rethink our approach?

Most patients with peripheral arterial disease (PAD) are asymptomatic. Despite the absence of symptoms, these patients have a significantly increased risk of death and...

Drug Treatment of Hypercholesterolaemia

Serum cholesterol has been established as a major risk factor for coronary heart disease (CHD). There is a linear association between serum cholesterol level...

Goldberger’s Triad in Dilated Cardiomyopathy—Can it Predict the Severity of Left Ventricular Dysfunction?

In 1982, Goldberger described a novel electrocardiogram (ECG) triad that was highly specific for patients with dilated cardiomyopathy and congestive heart failure (attributable to...

Anthropometry of Anterior Cruciate Ligament in Singaporean Chinese

Anterior cruciate ligament (ACL) reconstruction is a technically precise and demanding operation. Attention to factors such as the tunnel position, graft selection, fixation and...

Surgical Results of Open Reduction and Plating of Humeral Shaft Fractures

Management of humeral shaft fractures has been the subject of controversy (Böhler, Ekkernkamp and Muhr, Nast-Kolb and Schweiberer). The problem of non-union, wound infection...

Operative Treatment of Displaced Talar Neck Fractures

Talus is a weight bearing bone with peculiar anatomy and blood supply. It forms the ankle joint with the medial and lateral malleoli, subtalar...

Thyroid Storm Presenting as Jaundice and Complete Heart Block

Thyroid storm is defined as a severe and often life-threatening exacerbation of thyrotoxicosis which is usually characterised by hyperthermia, tachycardia, severe agitation and altered...

Simultaneous Transcatheter Valvuloplasty and Amplatzer Septal Occlusion for Pulmonary Valvar Stenosis and Secundum Atrial Septal Defect

Congenital pulmonary valvar stenosis (PVS) and secundum atrial septal defect (ASD) are relatively common forms of congenital heart disease (CHD). Since the first successful...

A Case Report of Atasoy Antenna Procedure

The hook nail deformity is a relatively common problem after fingertip amputations. It is usually ignored but can be quite disabling. This article is available...

Electrocardiographic Abnormalities in Combined Hypercalcaemia and Hypokalaemia—Case Report

The electrocardiographic abnormalities in isolated hypercalcaemia and hypokalaemia have been well documented in the literature. However, electrocardiogram (ECG) findings in combined hypercalcaemia and hypokalaemia...

Five Paediatric Case Reports of the Use of Adenosine in Supraventricular Tachycardia

Adenosine has been shown to be effective in terminating supraventricular tachycardia in adults and children. However, the use of adenosine has not been previously...

Interventional Electrophysiology and its Role in the Treatment of Cardiac Arrhythmia

Cardiac arrhythmias are disorders of the electrical system of the heart which can present as benign ectopics or as life-threatening arrhythmias and sudden cardiac...

Double Level Fractures of the Femur Treated with Closed Intramedullary Nailing

Closed locked intramedullary nailing of the femur has become the accepted means of treating fractures of the femur. The use of locking nails has...

Osteoporosis—The Need for a Paradigm Shift

Osteoporosis is becoming an increasing public health problem in most countries. Osteoporosis literally means “porous bones” and involves skeletal fragility leading to an increased...

Osteoid Osteoma after a Stress Fracture of the Tibia: A Case Report

A 24-year-old man complained of left leg pain following 3 months of infantry training 6 years ago. There was no previous complaint of pain...

Reconstruction of a Supinated Hypoplastic Thumb with Combined Huber Transfer and Derotation Osteotomy: A Case Report

A 6-year-old Chinese girl presented with a deformity of the left thumb since birth. Her father has a similar deformity. This article is available only...

Incessant Ectopic Atrial Tachycardia and Tachycardia-related Cardiomyopathy: Therapeutic Options and Potential for Cure

Incessant ectopic atria tachycardia (IEAT) is a rare and insidious arrhythmia which is frequently misdiagnosed and if untreated, leads to ‘exhaustion’ of the myocardium...

Intracoronary Brachytherapy: The Beginning of the End of Restenosis?

Restenosis remains a major clinical problem 20 years after the introduction of coronary angioplasty by Andreas Gruentzig in the treatment of coronary artery disease....

Transscaphoid Perilunate Fracture/Dislocations—Results of Surgical Treatment

Transscaphoid perilunate fracture/dislocations are relatively uncommon injuries of the wrist, constituting about 3% of all carpal injuries. However, it accounts for more than half...

The Effect of Fenofibrate on Insulin Sensitivity and Plasma Lipid Profile in Non diabetic Males with Low High Density Lipoprotein/Dyslipidaemic Syndrome

Hyperinsulinaemia and insulin resistance have been postulated to relate directly to both hypertension and coronary artery disease in type II diabetes and possibly also...

Extraarticular Villonodular Synovitis of the Tendoachilles: A Case Report

Pigmented villonodular synovitis is a progressive synovial lesion of uncertain aetiology associated with synovial-lined tissues of the joints, tendon sheaths and bursae. The incidence...

Embolisation of a Leaking Pseudoaneurysm of the Main Artery Supplying a Replanted Arm: A Case Report

Pseudoaneurysms are conventionally treated by surgery. In recent years, non-surgical methods are being considered, including embolisation with wires, coils or gelfoam and anticoagulation. This article...

Homocysteine and Atherosclerotic Disease: The Epidemiologic Evidence

Homocysteine is a thiol-containing amino acid formed during the metabolism of methionine. The metabolic fate of homocysteine may be influenced by the alterations in...

T Wave Alternans and Acute Rheumatic Myocarditis: A Case Report

T wave alternans, an electrical cardiac alternans in which there is a beat-to-beat variation in the amplitude, shape or the polarity of the T...

Comparison of First Carpometacarpal Joint Arthrodesis with Contralateral Excision Arthroplasty in a Patient with Bilateral Saddle Joint Arthritis: A Case Report

The carpometacarpal joint (CMCJ) of the thumb is commonly afflicted with degenerative arthritis. Of the patients seeking surgical treatment, post-menopausal women outnumber men by...

Trends in Mortality, Incidence, Hospitalisation, Cardiac Procedures and Outcomes of Care for Coronary Heart Disease in Singapore, 1991-1996

In line with trends in many high-income countries, Singapore has experienced some declines in mortality from coronary heart disease (CHD) since the 1980s. Whether...

9th Chapter of Surgeons’ Lecture: The Orthopaedic Surgeon: Historical Perspective, Ethical Considerations and the Future

The legacy of caring and humanitarianism has been the mission of the medical profession since the founding of Singapore by Sir Stamford Raffles in...

A Study of Joint Mobility in a Normal Population

Joint mobility varies between individuals and factors such as age, sex, race and heredity influence the range of motion of a joint. Excessive mobility...

Delayed Amputation in Lower Limb Trauma: An Analysis of Factors Leading to Delayed Amputation

The decision whether to amputate or to attempt a limb salvage procedure in a mangled extremity is a difficult one. Numerous protocols have been...

Establishment of Animal Models Using Experimental Rats for Allogeneic Tissue Transplantation and Quantitative Flow Cytometric Detection of Immunochimera

Allogeneic tissue and organ transplantation has long been an important medical issue, as it provides an effective treatment alternative for a broad spectrum of...

The Effect of Storage at -70°C and -150°C on the Torsion Properties of the Canine Femur

Allograft transplantation of bone has been established as a viable and useful reconstructive procedure when limb salvage is the option of choice. For bone...

Use of Titanium Prosthesis to Bridge a Vertebral Gap in the Spine—A Preliminary Experimental Study

Bridging a vertebral gap in the spine is one of the commonest problems facing the spine surgeon after dealing with a tumour, infection or...

The Results of Autogenous Tibial Periosteal Transplants for Full Thickness Cartilage Defects in the Knee Joints of Pigs

Articular cartilage injuries to the knee are commonly seen by team doctors, sports physicians and orthopaedic surgeons. Despite many clinical as well as experimental...

Initial Experience With an Autocapture Pacemaker System

The longevity of a pacemaker generator varies directly with the total deliverable amount of electrical charge (Q, in coulombs) and inversely with the rate...

The Differential Diagnosis of Supraventricular Tachycardia Using Clinical and Electrocardiographic Features

Noninvasive evaluation of the mechanism of the arrhythmia is important in the management of supraventricular tachycardia (SVT). It guides one in the choice of...

Use of Low Molecular Weight Heparin for Prevention of Deep Vein Thrombosis in Total Knee Arthroplasty—A Study of its Efficacy in an Asian Population

The role of thromboprophylaxis in total knee replacement (TKR) remains controversial. In several reports, the incidence of deep vein thrombosis (DVT) has been significant. This...

Deep Vein Thrombosis after Total Knee Replacement

Western literature reports a very high incidence of deep vein thrombosis in its population especially after orthopaedic surgery. In total knee replacement without prophylaxis,...

Cardiac Marker Point-of-care Testing: Evaluation of Rapid On-site Biochemical Marker Analysis for Diagnosis of Acute Myocardial Infarction

In the present era of revascularisation therapy, rapid and accurate diagnosis of acute myocardial infarction (AMI) is important, as these patients may benefit from...

Cardiovascular Disease: Genes and Public Health

The excitement surrounding the Human Genome Project and its impending completion has raised expectations of the possibilities for genetics in common disease. It is...

Management of Growth Arrest with Tissue-engineered Cells

Before I go on to the scientific aspects of my talk, I would like to pay tribute to Dr Yahya Cohen. Dr Cohen was...

Incidence of Ischaemic Heart Disease and Stroke in Chinese, Malays and Indians in Singapore: Singapore Cardiovascular Cohort Study

Comparisons of disease frequency in different ethnic groups help to unravel the contributions of nature and nurture in their aetiology and to identify environmental...

Technetium-99m Sestamibi for the Assessment of Myocardial Salvage Following Reperfusion Therapy in Acute Myocardial Infarction

Reperfusion therapy for acute myocardial infarction is feasible with thrombolytic therapy as well as acute percutaneous transluminal coronary angioplasty (PTCA). Both modalities of treatment...

Initial Experience of Radiofrequency Catheter Ablation of Supraventricular Tachycardia in Paediatric Patients

Paroxysmal supraventricular tachycardia (SVT) is well-recognised as one of the commonest rhythm disorders in children. There may be few symptoms, but many experience palpitations,...

Surgical Results of Intercondylar Fractures of the Adult Femur

Fractures of the intercondylar region of the femur often resulted from high velocity accidents. This would lead to increased comminution and involvement of the...

A Case Report of Total Finger Joint Replacement Arthroplasty After Traumatic Amputation

A 41-year-old Chinese man had his dominant thumb, index and middle fingers caught by a wood-cutting machine while at work. He sustained a near-amputation...

Diagnosis of Pacemaker Lead Infection Using Transoesophageal Echocardiography: A Case Report

The expanding indications for permanent cardiac pacing mandate an awareness of the potential complications associated with device implantation. After failure of pacing and sensing,...

Re: Rikhraj I S, Tan C T, Tan S K, Teoh S H, Hastings G W. Use of Titanium Prosthesis to Bridge a Vertebral Gap in the Spine–A Preliminary Experimental Study. Ann Acad Med Singapore 1999; 28:20-4

In a recent issue of the Annals, Academy of Medicine, Singapore the above-mentioned paper was published. Figures 6 and 7 of the paper plot...

Pericarditis and myocarditis after COVID-19 mRNA vaccination in a nationwide setting

The coronavirus disease 2019 (COVID-19) pandemic has resulted in much morbidity and mortality worldwide. The development of mRNA vaccines has heralded much hope in...

Cardiac Effects of Psychotropic Drugs

The incidence of mortality is higher among psychiatric patients than among the general population and the cause of which may be the psychiatric disorder...

Biomechanical Study of C2 (Axis) Fracture: Effect of Restraint

In human, the occipito-atlanto-axial (C0-C1-C2) joint complex is an important region of the spine and often susceptible to impact injury in trauma. Traffic accidents...

Results of Distal Radial Fractures Treated by Intra-focal Pin Fixation

Unstable fractures of the distal radius remain a challenge to orthopaedic surgeons. Unsatisfactory results are often associated with significant malunion. This article is available only...

Isolated Non-compaction of Ventricular Myocardium: A Report of Three Cases

Non-compaction of ventricular myocardium is a rare morphogenic arrest of compaction of the ventricular myocardial fibres during intrauterine life. Usually, the left ventricle is...

Impairment of Endothelial Function—A Possible Mechanism for Atherosclerosis of a High-fat Meal Intake

The impairment of endothelial vasodilatory function has been considered an early event in atherogenesis. This has been studied in association with various cardiovascular risk...

An Introduction to Biodegradable Materials for Tissue Engineering Applications

The concept of tissue engineering arises from the need to develop an alternative method of treating patients suffering from tissue loss or organ failure....

Galeazzi-Equivalent Fracture in Children Associated with Tendon Entrapment—Report of Two Cases

A 12-year-old boy fell whilst running. On examination, there was swelling and deformity of the wrist and there was local tenderness of the distal...

A Preliminary Study of the Utility of Combined Cardiac Markers in the Evaluation of Patients Presenting Early with Suspected Acute Coronary Syndrome

The management of patients presenting with chest pain of recent onset can prove to be a diagnostic challenge. These patients vary from having atypical...

Homocysteine, Folate and Vitamin B12 as Risk Factors for Acute Myocardial Infarction in a Southeast Asian Population

Since the beginning of the last decade, hyperhomocysteinaemia has been identified as a risk factor for acute coronary syndromes. A few large prospective studies...

The Posterior Cruciate Ligament: An Anthropometric Study in Asians and Evaluation of Safe Limits for Bony Tunnel Creation During Reconstruction

The posterior cruciate ligament (PCL) provides the main restraint to posterior translation of the tibia on the femur and is stronger than its anterior...

Advances in Surgical Treatment of Osteoporotic Fractures of the Spine

Osteoporosis is an important cause of fractures in the elderly. In the USA alone, at least 1.3 million fractures are attributed to osteoporosis a...

The Bone and Joint Decade 2000-2010

With the ageing population, degeneration of joints and osteoporosis and the resultant disability pose big public health problems in many countries of the world....

Magnetic Resonance Arthrography of the Labral-Ligamentous Complex of the Shoulder: An Update

Shoulder instability is a frequently encountered clinical problem in young active people following injury, particularly in athletes. The labral-ligamentous complex is increasingly recognised as...

A Deceptive Cervical Lymph Node: A Solitary Spinal Osteochondroma

Osteochondromas are cartilage-capped bony exostoses that arise mainly from the metaphyses of long bones from a lateral displacement of the epiphyseal growth cartilage, but...

Limited Magnetic Resonance Imaging (MRI) and the Occult Hip Fracture

Worldwide, in the past decade, the application of magnetic resonance imaging (MRI) has increased tremendously in the management of musculoskeletal trauma. Not least is...

Extremity Osteosarcoma—A Southeast Asian Experience

Osteosarcoma is a highly malignant bone cancer occurring primarily in young patients. Although rare, it is still the commonest primary bone cancer seen in...

Towards a Splint-free Repair for Flexor Tendon Injuries

The most problematic area in flexor tendon injuries is zone two. This zone is prone to injury as it is in the grasping part...

Biomechanics of the Shoulder

The shoulder is a complex of 5 articulating surfaces that together form the shoulder girdle. The glenohumeral joint together with the scapulothoracic articulation form...

Instrumentation in Spinal Surgery

Spinal instrumentation is defined as the use of mechanical devices that enhance or restore the segmental stability of the spine. Internal fixation of the...

The Growth and Development of Orthopaedic Sports Medicine in Singapore

Orthopaedic sports medicine in Singapore took form as a subspecialty of orthopaedic surgery over a number of years. Several individuals contributed to it being...

Paediatric Orthopaedics in Singapore

The name “Orthopaedic Surgery” is derived from the words “orthos” (meaning straight or to straighten) and “paido” (meaning child). Thus, it is not unexpected...

Addresses at the 50th Anniversary Celebration of the Department of Orthopaedic Surgery, National University of Singapore on 5 April 2002

Over 200 guests were gathered at the Fullerton Hotel Ballroom on the 5th of April 2002 to commemorate the 50th anniversary of the Department...

History of the Singapore Orthopaedic Association

The University of Malaya in Singapore was established in 1949. With this, the King Edward VII College of Medicine became the Faculty of Medicine,...

History of the Orthopaedic Specialty in Singapore

When the practice of orthopaedic surgery first began in Singapore, it was not a specialty in itself. There are no records as to when...

50th Anniversary Celebrations—Golden ……. but all is not gold

On an occasion such as this—the 50th anniversary of the inauguration of orthopaedic surgery as a specialty service in Singapore—acclaim, commendations, praise and endorsement...

Myocardial Infarction in Singapore: A Nationwide 10-year Study of Multiethnic Differences in Incidence and Mortality

Rapid urbanisation and increasing affluence have improved the socioeconomic status of Asians. This, however, has brought with it new socioeconomic and medical problems resulting...

Acute Coronary Syndrome—Factors Causing Delayed Presentation at the Emergency Department

Acute coronary syndrome (ACS) refers to a continuum of clinical entities ranging from unstable angina pectoris (UAP) to Q-wave myocardial infarction. Mortality rates from...

Rheumatic Heart Diseases in Pregnancy

Rheumatic heart disease comprises acute rheumatic fever following group A beta-haemolytic streptococcal infection of the tonsillopharynx, and its long-term sequelae of heart valve fibrosis...

Statins and Bone Morphogenetic Proteins: New Pathways in Bone Formation

Osteoporosis is a major public health problem causing considerable morbidity and mortality in Asian women. It is estimated that half of the world’s hip...

Allopurinol Hypersensitivity Syndrome and Acute Myocardial Infarction—Two Case Reports

Allopurinol hypersensitivity syndrome is an idiosyncratic drug reaction characterised by an acute and severe multiorgan disease. It usually begins 2 to 6 weeks (up...

A Case Report of Neurologically Unstable Fracture of the Lumbosacral Spine in a Patient with Ankylosing Spondylitis

Ankylosing spondylitis is associated with progressive ossification of the spinal ligaments and ankylosing of the facet joints leading to a totally stiff spine. It...

Two Case Reports on Incessant Left Ventricular Tachycardia: Curative Therapy with Radiofrequency Ablation

Left ventricular tachycardia is a recognisable condition in patients with otherwise structurally normal heart. It may arise from various foci in the left ventricle. This...

Prevention of Restenosis after Percutaneous Coronary Intervention: The Continuing Challenge

Since Andreas Gruntzig first demonstrated its use in humans in 1977, the utilisation of percutaneous transluminal coronary angioplasty (PTCA) has grown tremendously throughout the...

Clinical Update on Osteoporosis

Fractures, the most serious complication of osteoporosis, are increasing and constitute an evolving public health problem in terms of disability, mortality and cost. A...

Steroid-induced Osteoporosis

Corticosteroids are known to affect bone through multiple pathways (Fig. 1), influencing both bone formation and bone resorption, and these mechanisms have been reviewed....

An Asian Perspective to the Problem of Osteoporosis

Osteoporosis is regarded as an important public health problem in many Caucasian populations. Much of the research on epidemiology, diagnosis, treatment, genetic and molecular...

Osteoporotic Hip Fractures in Singapore—Costs and Patient’s Outcome

Singapore is facing a rapidly ageing population. Osteoporosis, which is an age-related illness, will become an increasing problem. Osteoporotic hip fracture, because of the...

Outcomes of Acute Arthroscopic Repair and Conservative Treatment Following First Traumatic Dislocation of the Shoulder Joint in Young Patients

Traumatic dislocation of the shoulder is a serious problem especially in active and young patients. Shoulder instability and recurrent dislocation hinder patient activities. This article...

From Genesis to Genes

I would like to thank the Singapore Orthopaedic Association (SOA) for inviting me to deliver this year’s SOA lecture. When your President, Dr AK...

A Case Series of Sotalol-induced Torsade de Pointes in Patients with Atrial Fibrillation – A Tale with a Twist

In the light of the Cardiac Arrhythmia Suppression Trial (CAST) which suggested that class I antiarrhythmics may be linked to an increase in mortality,...

Book Review

A lot of young orthopaedic surgeons embark on research projects with little guidance. This book is especially directed towards young investigators in the Southeast...

Significance of the Lateral Epiphysis of the Acetabulum to Hip Joint Stability

Developmental dysplasia of the hip (DDH) remains one of the most difficult disorders to understand and treat in Paediatric Orthopaedics. The aetiology have not...

Immediate and Mid-Term Safety and Efficacy of Single Lead VDD Pacemakers for Patients with Atrioventricular Block and Normal Sinus Node Function—A Single Centre Experience

In patients requiring a cardiac pacemaker for any indication, the ideal goal of therapy is to achieve atrioventricular (AV) synchrony. This replicates the normal...

Torsades de pointes in a woman presenting with syncope

A 57-year-old woman presented with first onset syncope, which was witnessed by her family members. It occurred in the middle of a conversation and...

Spironolactone Does Not Prevent Restenosis After Coronary Stenting in Humans

High restenosis rate, which has been documented to occur in approximately 30% to 50% of cases, still remains a major concern, although percutaneous transluminal...

Condensing Osteitis of the Medial Clavicle – An Intermediate-term Follow-up

Condensing osteitis of the clavicle is an idiopathic condition affecting the medial end of the clavicle, and is characterised by sclerosis and expansion of...

Nuclear Cardiology in Singapore: A Review

The past decade has witnessed significant advances and rapid growth in the field of nuclear cardiology. In Singapore, our experience has been similar to...

Stem Cell Cardiomyoplasty: State-of-the-Art

Congestive heart failure (CHF) remains the most common diagnosis made in cardiology wards today. At present, no long-term therapeutic option for end-stage CHF is...

Medical Therapy in Heart Failure – Is Polypharmacy Necessary?

The clinical syndrome of heart failure is recognised by a characteristic pattern of haemodynamic, renal, neural and hormonal responses. Heart failure is the end-stage...

Coronary Artery Disease: Comprehensive Evaluation by Cardiovascular Magnetic Resonance Imaging

Coronary artery disease (CAD) is a major health problem worldwide. With advances in CAD intervention and improvements in treatment and management of CAD, there...

Drug-eluting Stents: The End of Restenosis?

Percutaneous coronary intervention (PCI) is the preferred revascularisation approach for most patients with coronary artery disease because, with comparable clinical outcomes in selected patients,...

Coronary Artery Ectasia: A Ten-year Experience in a Tertiary Hospital in Singapore

Coronary artery ectasia (CAE) is the abnormal dilatation of a segment of the coronary artery to a diameter of at least 1.5 times that...

Pilot Survey of the Diagnosis and Management of Heart Failure in Primary Care: A Singaporean Perspective

Congestive heart failure is an increasingly common disorder and a major cause of morbidity and mortality in developed countries around the world. It is...

High-sensitivity C-reactive Protein is Predictive of Medium-term Cardiac Outcome in High-risk Asian Patients Presenting With Chest Pain Syndrome Without Myocardial Infarction

Patients with chest pain often pose a diagnostic conundrum to the attending physician especially when symptoms are not typical of angina and the electrocardiogram...

Cardiovascular Medicine and Surgery in Singapore: The Next Lap

Fourteen years ago, an editorial in the Annals announced the coming of age of cardiology in Singapore. Among the issues raised in that editorial...

Plantar Dislocation of Lateral Tarsometatarsal Joint: A Case of Subtle Lisfranc Injury

Lisfranc fracture dislocations are uncommon injuries and the diagnosis may be easily missed. There are several variations and we present one such variant. This article...

Thoracic Myelopathy Secondary to Ligamentum Flavum Ossification

Acquired thoracic spinal canal stenosis is an uncommon condition compared to myelopathy and radiculopathy frequently seen in the cervical and lumbar spine, respectively. Because...

Rising Trend of Anterior Cruciate Ligament Injuries in Females in a Regional Hospital

Female athletes are at a greater risk for injuries involving the anterior cruciate ligament (ACL) than their male counterparts in high schools and colleges...

Profunda Femoris Artery Pseudoaneurysm Presenting with Triad of Thigh Swelling, Bleeding and Anaemia

Pseudoaneurysms of the profunda femoris artery have been reported following blunt and penetrating trauma to the thigh, and orthopaedic procedures of the proximal femur....

Cancellous Screw Fixation for Femoral Neck Fractures: One Hundred and Sixteen Patients

The incidence of hip fractures rises with increasing age, doubling for each decade beyond 50 years of age. With the increase in life expectancy...

Deep Vein Thrombosis Following Hip Fracture and Prevalence of Hyperhomocysteinaemia in the Elderly

Western literature reports a high incidence of deep vein thrombosis (DVT) after hip surgery in the absence of prophylaxis. It is reported to be...

Septic Arthritis after Arthroscopic Anterior Cruciate Ligament Reconstruction

Arthroscopic-guided reconstruction of the anterior cruciate ligament (ACL) is now recognised as the preferred reconstructive option in restoring anterior knee joint stability. According to...

Morbidity Following Anterior Cruciate Ligament Reconstruction Using Hamstring Autograft

Rupture of the anterior cruciate ligament (ACL) impairs the stability of the knee, resulting in difficulty with athletic performance, increased risk of subsequent meniscal...

Clinical Indications for Positron Emission Tomography (PET) Scanning

The purpose of these guidelines is to provide a broad framework for clinicians considering the use of positron emission tomography (PET) scanning for their...

Clinical Applications of Positron Emission Tomography in Cardiology: A Review

Ischaemic heart disease associated with depressed left ventricular function is a common clinical management dilemma. There is overwhelming evidence that such patients have a...

Positron Emission Tomography – A Vital Component of Molecular Imaging

Contemporary medical imaging is progressing towards quantification of tissue function in addition to merely providing anatomical information, as illustrated by the rising use of...

16th Seah Cheng Siang Memorial Lecture – The Changing Face of Cardiology Practice, Training and Research in Singapore

Professor Seah Cheng Siang was one of the most illustrious physicians of his era. During his professional career, he held the following positions: Head,...

Building Collaboration in Cardiac Imaging

Publicity about new developments in medical technology is not at all unusual. But the degree with which multi-slice computed tomography (MSCT) for coronary artery...

Guidelines on Cardiac CT in Singapore (2006)

The heart is difficult to image because of its complex wall motion and variability of the cardiac cycle. Recent advances in 16 and 64-slice...

Necrotising Fasciitis and Traditional Medical Therapy – A Dangerous Liaison

The first case was a 54-year-old lady, with a history of insulin-dependent diabetes mellitus and hyperlipidaemia, who presented with bilateral hand pain and stiffness...

A Review of Clinical Pathway Data of 1663 Total Knee Arthroplasties in a Tertiary Institution in Singapore

Total knee arthroplasty (TKA) has been established as an effective treatment modality for patients with symptomatic knee arthritis. It provides predictable decrement in pain,...

The Association of Smoking with Components of the Metabolic Syndrome in Non-diabetic Patients

Metabolic syndrome (MS) is conceptualised as a constellation of physiologic or anthropometric abnormalities. Typically, it includes excess weight, hyperglycaemia, elevated blood pressure, low concentration...

Hepatitis B Virus Infection and the Risk of Coronary Atherosclerosis

Coronary artery disease (CAD), also called coronary heart disease, is the leading cause of death for both men and women. CAD is usually caused...

Assessment of Medical Graduates Competencies

Medical professional proficiency comprises a set of skills, knowledge, and attitudes necessary to efficiently accomplish the practice of medicine. The major aim of undergraduate...

“Bone Block” and Congenital Spine Deformity

A 14-year-old female who presented with a limited range of neck motion with various congenital vertebral anomalies that included improper segmentation or extensive “fusion”...

Concomitant Coronary Artery Disease Among Asian Ischaemic Stroke Patients

Coronary artery disease (CAD) is the leading cause of mortality following ischaemic stroke. The annual risk for myocardial infarction following ischaemic stroke is approximately...

Improving Door-to-balloon Times in Primary Percutaneous Coronary Intervention for Acute ST-elevation Myocardial Infarction: The Value of an Audit-driven Quality Initiative

Primary percutaneous coronary intervention (PCI) for patients with acute ST-elevation myocardial infarction (STEMI) has been shown to be superior to thrombolytic therapy in terms...

Autologous Bone Marrow Plasma Injection after Arthroscopic Debridement for Elbow Tendinosis

Elbow tendinosis is a term used to describe a syndrome of pain involving the extensor or flexor tendon origin of the forearm musculature. It...

Primary Hydatid Disease of the Humerus

Hydatid disease is a parasitic tapeworm infection caused by Echinococcus species. E.granulosus and E.alveolaris are the most common causes of hydatid disease in humans. This...

Risk Factor Profile and Treatment Patterns of Patients with Atherothrombosis in Singapore: Insight from the REACH Registry

Atherothrombosis is a global problem that affects every ethnic group. It can lead to ischemic stroke, myocardial infarction or vascular death. This article is available...

Recurrent Patellar Dislocation: Reappraising our Approach to Surgery

Traumatic patellar dislocations affect mainly adolescents and young adults. Up to 44% of patients will develop recurrent dislocation. This article is available only as a...

Triple Endobuttton Technique in Acromioclavicular Joint Reduction and Reconstruction

Acromioclavicular joint (ACJ) dislocation is a common injury often affecting young athletes. Cyclist, ice hockey players, weight lifters, rugby players and martial exponents are...

Return to Sports After Anterior Cruciate Ligament Reconstruction – A Review of Patients with Minimum 5-year Follow-up

Complete anterior cruciate ligament (ACL) rupture results in a mechanically unstable knee. ACL reconstruction is recommended in athletes to help restore knee stability for...

Clinical Evaluation of Arthroscopic-assisted Allograft Meniscal Transplantation

The menisci of the knee are fibro-cartilaginous structures essential for the normal biomechanic of the knee joint. They play a critical role in shock...

Renal Cell Carcinoma Bony Metastasis Treatment

Patellar metastases are extremely rare, ironically, primary tumours of the patella are more common than metastatic disease. A Medline search from 1960 to the...

Non-compaction Cardiomyopathy Presenting with Classical Angina Pectoris

Non-compaction cardiomyopathy (NCC) is an unclassified cardiomyopathy, previously known as “spongy left ventricular myocardium”. It is characterised by prominent myocardial trabeculations and deep intertrabecular...

A Case of Myopericarditis in a Patient with Methicillin-resistant Staphylococcus aureus Community-acquired Pneumonia

We described a healthy and physically active 41-year-old man who presented to a private practitioner with right axillary pain and fever. Physical examination revealed...

The Relation Between Insulin Resistance Determined by Haemostatic Modelling and Slow Coronary Flow

Slow coronary flow (SCF) is a well recognised clinical entity, characterised by delayed opacification of coronary arteries in the presence of normal coronary angiogram....

Improving Access to Outpatient Cardiac Care at the National Heart Centre – A Partnership Between Specialists and Primary Care

There is evidence that shows that the use of healthcare delivered by private providers, particularly procedures and hospital care, depends on supply. For example,...

Pattern and Outcome of Subsidised Referrals to Cardiology Specialist Outpatient Clinics

Singapore faces an increasing demand for public healthcare from an ageing population in need of chronic care. At our cardiology specialist outpatient clinics, the...

Phaeochromocytoma the Great Mimicker: A Case Report

Phaeochromocytomas are catecholamine producing neuroendocrine tumours that can manifest a variety of symptoms which mimic other diseases. They are also known for their “rule...

Osteochondral Lesions of the Talus

Osteochondral lesions of the talus are a known cause of chronic ankle pain. They are frequently found in the active population after ankle sprains. This...

The Angiographic Aspects of Myocardial Bridges in Turkish Patients who have Undergone Coronary Angiography

Myocardial bridge, intramural coronary artery, coronary artery over bridging and myocardial loop are essentially the different terms used to designate the same phenomenon. Myocardial...

Management of Acute ST-Elevation Myocardial Infarction: Reperfusion Options

Cardiovascular disease is a leading cause of death globally. More than 920,000 myocardial infarctions (MI) are diagnosed annually in the United States. Of these,...

A Case of Acute Myocardial Infarction 24 hours after Acute Ischaemic Stroke

It is well known that thrombolysis for acute myocardial infarction (AMI) may lead to disintegration of pre-existing intracardiac thrombi with subsequent cerebral embolisation. It...

The Natural History and Prognosticative Factors of Adult Extremity Soft Tissue Sarcomas: An Asian Perspective

Soft tissue sarcomas (STSs) are extremely rare tumours, making up about 1% of all malignancies. In Singapore, they accounted for 0.7% of all cancers...

Association Between Rectosigmoid Adenomas and Cardiovascular Risk Factors: A Hospital-based, Cross-sectional Study

Lymphatic system returns proteins, lipids and accompanying water from the interstitium to the venous circulation near the subclavian vein-internal jugular vein junction, bilaterally. Lymphoedema...

An Unexpected Outcome following Radial Head Excision for Jeffrey Type II Fracture-Dislocation of the Proximal Radius in a Child

We present a case of a 10-year-old child who sustained a traumatic fracture-dislocation of his proximal radius and subsequently underwent surgical removal of the...

The Growing Burden of Cardiovascular Disease: Role of the Arterial-Cardiac Interaction

World Heart Day was inaugurated to increase global awareness that cardiovascular disease (CVD) is the world’s leading cause of death, claiming, according to the...

Comparison of Cardiac Output Measurement by Arterial Waveform Analysis and Pulmonary Artery Catheter in Mitral Stenosis

Cardiac output (CO) is a vital measurement that influences clinical decision-making. Although thermodilution via a pulmonary artery catheter (PAC) is considered the gold standard...

Effect of Autologous Mesenchymal Stem Cells on Biological Healing of Allografts in Critical-sized Tibial Defects Simulated in Adult Rabbits

Bridging of large bone defects is a challenging problem in orthopedic and reconstructive surgery. Options include vascularised bone autografts, non-vascularised bone autografts, allografts, bioceramics...

Unusual Pacemaker Lead Placement in an Unsuspecting Heart

A 51-year-old man, with a negative cardiac medical history, presented with symptomatic 2:1 atrioventricular block. A permanent pacemaker was implanted. This article is available only...

Embolised Injection Needle Fragment to the Heart, Mimicking a Subcutaneous Charm Needle

Embolisation of a fragmented injection needle to the heart is rare, even in intravenous drug abusers. The presence of an embolised needle fragment to...

The Need for a System of Prognostication in Skeletal Metastasis to Decide Best End-of-life Care – A Call to Arms

Decisions regarding potential surgery for metastatic disease are influenced by estimates of patient survival. For example, patients with long life expectancy may be appropriately...

Vascular Endothelial Growth Factor (VEGF) is Expressed During Articular Cartilage Growth and Re-expressed in Osteoarthritis

Growth factors are polypeptides that direct cells to proliferate, differentiate, migrate or produce matrix. They exert their effects by interacting with specific receptors on...

Transcatheter Closure of Atrial Septal Defects – Is Balloon Sizing Still Necessary?

Device closure of atrial septal defects through the transcatheter approach has now been well accepted as an option to surgical treatment. A range of...

Factors Affecting the B-Type Natriuretic Peptide Levels in Stroke Patients

The term “stroke” comprises all diseases in which a region of the brain is transiently or continuously affected by ischaemia or haemorrhage, and/or in...

Eighteen-Month Clinical Safety and Efficacy Outcomes of Sirolimus-, Paclitaxel- and Zotarolimus-drug Eluting Stents in Diabetic Patients Undergoing Percutaneous Coronary Intervention for Complex Coronary Artery Stenosis

Patients with diabetes mellitus (DM) have higher incidence of cardiovascular morbidity and mortality compared with non-diabetic patients. The underlying mechanism is due to the...

Risk Factors and Clinical Outcomes for Contrast-induced Nephropathy After Percutaneous Coronary Intervention in Patients with Normal Serum Creatinine

Contrast-induced nephropathy (CIN) is a common complication post-percutaneous coronary intervention (PCI). CINis associated with increased morbidity, mortality, prolonged hospitalisation and long-term renal impairment. This article...

Brachial Approach for Coronary Angiography and Intervention: Totally Obsolete, or a Feasible Alternative When Radial Access is Not Possible?

The possible methods of reaching the coronary vasculature using a percutaneous technique are limitless: the radial, femoral, brachial, ulnar, subclavian and axillary arteries, and...

Effectiveness of Vacuum-assisted Closure (VAC) Therapy in the Healing of Chronic Diabetic Foot Ulcers

Diabetes mellitus is a common problem in Singapore, with an incidence of 8.2% in the local population aged between 18 and 69 in 2004....

Angioplasty on an Infarct-related Anomalous Right Coronary Artery Arising from Posterior Coronary Sinus

A 60-year-old chronic smoker had delayed presentation (>18 hours) of acute inferior myocardial infarction with electrocardiogram showing 1.0 mm ST-segment elevation in leads II,...

Complete Atrioventricular Block Complicating Acute Anterior Myocardial Infarction can be Reversed with Acute Coronary Angioplasty

Complete atrioventricular block (AVB) develops in more than 5% of patients with myocardial infarction (MI). These patients have poorer outcomes compared to those without...

Acute Myocardial Infarction in Pregnant Women

Acute myocardial infarction (AMI) is an important cause of mortality and morbidity worldwide. It typically occurs in middle-aged or elderly people with cardiovascular risk...

Risk Stratification for Sudden Cardiac Death after Acute Myocardial Infarction

In today’s modern era of evidence-based medicine and interventional cardiology, most patients who suffer an acute myocardial infarction (AMI) are started on medication with...

Adjunctive Pharmacologic Agents and Mechanical Devices in Primary Percutaneous Coronary Intervention

Primary percutaneous coronary intervention (PPCI) has been shown to be superior to thrombolysis in patients presenting with ST-segment elevation acute myocardial infarction (STEMI), with...

Management of Antiplatelet Therapy During Acute Percutaneous Coronary Intervention: New Strategies and Therapeutics

Platelet adhesion, activation, and aggregation are stimulated during an acute coronary syndrome (ACS), the result of intimal injury due to rupture of an atherosclerotic...

Risk Assessment Models in Acute Coronary Syndromes and Their Applicability in Singapore

Strategies for managing cardiovascular disease are evolving rapidly. This evolution and improvement in care is responsible for reducing mortality especially in patients presenting with...

Current Trends in Diagnostic Biomarkers of Acute Coronary Syndrome

Advances in our understanding of the pathophysiology of acute coronary syndrome (ACS) have led to the marked increase in development of biomarkers for diagnosis,...

Update on Clinical Imaging of Coronary Plaque in Acute Coronary Syndrome

Acute coronary syndrome (ACS) encompasses the clinical spectrum of unstable angina (UA) and acute myocardial infarction (AMI). Most ACS are precipitated by luminal thrombi...

Panic Attack and its Correlation with Acute Coronary Syndrome – More Than Just a Diagnosis of Exclusion

Acute coronary syndrome (ACS) is a life-threatening condition which benefits from prompt evaluation and proper treatment, such that it would be considered negligent for...

Research on Psychoneuroimmunology: Does Stress Influence Immunity and Cause Coronary Artery Disease?

In recent decades, there has been increasing interest in exploring the relationship between psychological stress and various health conditions. An enlarging body of evidence...

Clinical and Angiographic Findings of Complete Atrioventricular Block in Acute Inferior Myocardial Infarction

Complete atrioventricular block (AVB) complicates inferior wall myocardial infarction (MI) in 11% to 15% of cases. It usually clusters with conditions indicative of poor...

Reperfusion Strategy and Mortality in ST-Elevation Myocardial Infarction among Patients with and without Impaired Renal Function

Randomised controlled trials have demonstrated better outcomes with primary percutaneous coronary intervention (PCI) over fi brinolytic therapy in the treatment of ST-segment elevation myocardial...

Gender Disparity in Patients Undergoing Percutaneous Coronary Intervention for Acute Coronary Syndromes – Does it Still Exist in Contemporary Practice?

Globally, cardiovascular disease (CVD) is the single most common cause of death among women; and in parallel with an increasing life expectancy, the proportion...

The Impact of Gender on the Outcomes of Invasive versus Conservative Management of Patients with Non-ST-Segment Elevation Myocardial Infarction

Recent studies have suggested differences in clinical outcomes between men and women following acute myocardial infarction (AMI). Some studies have indicated poorer survival of...

Framingham Risk Score Inadequately Predicts Cardiac Risk in Young Patients Presenting with a First Myocardial Infarction

Cardiovascular disease (CVD) is a major cause of morbidity and mortality worldwide. The Framingham Risk Score (FRS) was derived from the Framingham Heart Study...

Acute Coronary Syndrome: from Epidemiology to Treatment

The term “acute coronary syndrome” (ACS) was introduced a decade ago to describe a spectrum of conditions resulting in acute myocardial ischaemia. It comprises...

Off-Pump versus On-Pump Coronary Artery Bypass Procedures: Postoperative Renal Complications in an Asian Population

To date, the major part of routine cardiac surgery is performed using extracorporeal circulation with cardioplegic arrest. Regardless the technique of cardioplegia, temporary renal...

Chronic Achilles Tendon Rupture Treated with Two Turndown Flaps and Flexor Hallucis Longus Augmentation – Two-year Clinical Outcome

Chronic Achilles tendon rupture is a disabling condition resulting in ankle pain, weakened ankle plantarflexion and abnormal gait. Management of chronic ruptures is technically...

Catheter Entrapment During Cardiac Electrophysiology Study

A 50-year-old man underwent cardiac electrophysiology study for palpitations. Under fluoroscopic guidance, 1 deflectable decapolar and 2 quadripolar diagnostic catheters were introduced smoothly into the...

Lemierre’s Syndrome: An Unusual Cause of Calf Abscess

Dear Editor, Lemierre’s syndrome is a rare disease caused by Fusobacterium necrophorum, a Gram-negative anaerobic bacillus that is associated with oropharyngeal infections. We describe a...

Treatment of Coronary In-stent Restenosis with Drug-eluting Balloon Catheter: Real-world Outcome and Literature Review

Dear Editor, Currently, coronary stent implantation is employed in approximately 90% of percutaneous coronary intervention (PCI) cases. Despite the use of drug-eluting stents (DES), coronary...

Unipolar versus Bipolar Hemiarthroplasty for Displaced Femoral Neck Fractures in the Elderly: Is There a Difference?

Hip hemiarthoplasties are commonly performed for displaced femoral neck fractures. The advantages of hemiarthroplasty over internal fixation include earlier mobility, less reoperations and better...

Use of the Sole Flap to Convert an Above Knee Amputation to a Below Knee Amputation in Trauma

Anterior cervical discectomy and fusion (ACDF) and anterior cervical corpectomy and fusion (ACCF) are performed for decompression of the spine when the primary compressive...

Single-level Anterior Corpectomy with Fusion versus 2-level Anterior Cervical Decompression with Fusion: A Prospective Controlled Study with 2-year Follow-up Using Cages for Fusion

Anterior cervical discectomy and fusion (ACDF) and anterior cervical corpectomy and fusion (ACCF) are performed for decompression of the spine when the primary compressive...

Long-term Outcomes of Medical Therapy Versus Coronary Revascularisation in Patients with Intermediate Stenoses Guided by Pressure Wire

Although coronary angiography has been used as the “gold standard” imaging technique for the diagnosis of coronary artery disease, it is essentially a lumenogram...

Chest Pain, Something is Not Right…Or Left

A 46-year-old female was referred for evaluation of central chest pain unrelated to exertion. She was known to have diabetes mellitus, hypertension, and dyslipidaemia....

A Novel “Box Lesion” Minimally Invasive Totally Thoracoscopic Surgical Ablation for Atrial Fibrillation

  Atrial fibrillation (AF) is the most common and severe cardiac arrhythmia. It affects 0.4% to 1% of the general population, and the prevalence of...

Improved door-to-balloon time for primary percutaneous coronary intervention for patients conveyed via emergency ambulance service

Early reperfusion of ST-segment elevation myocardial infarction (STEMI) has been shown to result in better outcomes,1-3 and guidelines for treatment of STEMI recommend a...

Transthyretin amyloid cardiomyopathy: The emerging role of cardiac amyloid imaging

Transthyretin amyloidosis (or ATTR amyloidosis) is an under-recognised multisystemic disorder, arising from misfolding of transthyretin proteins into insoluble amyloid fibrils. As amyloid fibrils deposit...

New-onset cardiovascular risk factors following liver transplantation: A cohort analysis in Singapore

Malnutrition is well described in liver cirrhosis. The hyperdynamic circulation and altered metabolism in cirrhosis result in a hypercatabolic state which accelerates tissue breakdown....

ST-segment elevation myocardial infarction in post-COVID-19 patients: A case series

Coronavirus disease 2019 (COVID-19) has been associated with thromboembolic phenomenon in the early phase of disease. Growing evidence suggests a hypercoagulable state as well...

Medical management of PAD: Expand or consolidate?

In this issue of the Annals, a rapid review of adherence to evidence-based medical treatment highlights an important and underappreciated aspect of the management...

Tackling osteoporosis and fragility fractures in Singapore

A shift in worldwide population ageing demographics has occurred in the 21st century. The longevity miracle is most keenly felt in Singapore, a young...

Dynamic mitral regurgitation treated with MitraClip

The dynamic nature of mitral regurgitation (MR) has been well appreciated but clinically under-recognised. In addition, evidence on therapeutic options for dynamic MR has...

Percutaneous paravalvular leak repair for severe aortic regurgitation after transcatheter aortic valve implantation (TAVI)

Paravalvular leaks (PVLs) are not uncommon after surgical valve replacement. The need for re-operation for clinically significant leaks is between 1 and 3%. Percutaneous...

Optimum early orthopaedic surgery in COVID-19 patients

Multiple guidelines have been established regarding the management of COVID-19 patients. However, there remains a paucity regarding specific guidelines on the optimal timing for...

Impact of dispatcher-assisted cardiopulmonary resuscitation and myResponder mobile app on bystander resuscitation

Out-of-hospital cardiac arrest (OHCA) is a leading cause of mortality worldwide, with a global incidence of 62 cases per 100,000 person-years. In addition, there...

Long-term outcomes of ischaemic stroke patients with diabetes in a multi-ethnic cohort in Singapore

Asia faces an epidemic of diabetes. The prevalence of diabetes in Asia is projected to grow from 114 million in 2007 to 180 million...

Cerebral venous thrombosis in a patient with mild COVID-19 infection

Emerging reports suggest venous and arterial thromboembolic diseases can complicate recovery from COVID-19. Postulated mechanisms include hypercoagulability, hypoxia, immobilisation, excessive inflammation and diffuse intravascular...