Letter to the Editor
Erdheim-Chester disease: Imaging spectrum of multisystemic manifestations
Dear Editor,
Erdheim-Chester disease (ECD) is a rare non-Langerhans histiocytosis, usually affecting middle-aged to older adults. It is a multisystemic disease with protean clinical manifestations....
Original Article
Impact of aortic annular size and valve type on haemodynamics and clinical outcomes after transcatheter aortic valve implantation
The management of severe aortic stenosis (AS) in patients with small aortic annulus (SAA) represents a therapeutic challenge due to the increased mortality and...
Letter to the Editor
Antiphospholipid and other autoantibodies in COVID-19 patients: A Singapore series
Dear Editor,
Thrombosis is an unexpected complication of COVID-19 initially reported in 3 patients from China.1 These patients tested positive for immunoglobulin (Ig) A anticardiolipin...
Letter to the Editor
Safety and efficacy of combined antiplatelet and low-dose rivaroxaban in patients with chronic limb threatening ischaemia in Singapore
Dear Editor,
Peripheral artery disease (PAD) is characterised by the debilitating atherosclerotic occlusion of arteries in the lower extremities, with chronic limb threatening ischaemia (CLTI)...
Original Article
Functional improvement after inpatient rehabilitation in community hospitals following acute hospital care
Early inpatient rehabilitation therapy has been known to have beneficial impact on physical function and mobility, psychological status and cognitive function of patients following...
Letter to the Editor
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...
Letter to the Editor
Haemoglobin H disease and outcomes in Singapore
Dear Editor,
Haemoglobin H (HbH) disease is a haemoglobinopathy affecting 3 of 4 α-globin genes on chromosome 16. It results from the deletion of 2...
Others
A Case Report of Neutrophilic Eccrine Hidradenitis in a Patient Receiving Chemotherapy for Acute Myeloid Leukaemia
Neutrophilic eccrine hidradenitis (NEH) is a neutrophilic dermatosis primarily affecting the eccrine glands and occurs most commonly in patients undergoing chemotherapy for a malignancy.
This...
Original Article
A Study of Idiopathic Thrombocytopenic Purpura (ITP) Patients over a Ten-year Period
Idiopathic thrombocytopenic purpura (ITP) is an immunoregulatory disorder in which antibodies damage platelets leading to their removal by cells of the reticuloendothelial system (RES)....
Original Article
Childhood Leukaemia: Towards an Integrated Psychosocial Intervention Programme in Singapore
In the last two decades there has been a surge of interest concerning the psychosocial correlates of life-threatening illnesses. Research in this area has...
Others
Urinary 2/16α-hydroxyestrone Ratio: Correlation with Serum Insulin-like Growth Factor Binding Protein-3 and a Potential Biomarker of Breast Cancer Risk
Breast cancer is the most common cancer among women in Singapore with age-standardised incidence rates increasing markedly from 26.8 to 38.7 per 100 000...
Original Article
Clinical Predictors of Nephritis in Systemic Lupus Erythematosus
Lupus nephritis is a common manifestation of lupus associated with significant morbidity and mortality. The use of cytotoxic agents has resulted in improved renal...
Others
A Case Report of Adult T-Cell Leukaemia/Lymphoma (ATLL)
Our patient was a 71-year-old Chinese man who presented with a 6-year history of recurrent papular erythematous eruptions to the dermatologist.
This article is available...
Review Article
Newer Thrombolytic Agents
First-generation fibrinolytic agents (streptokinase and urokinase) are effective thrombolytic drugs, but are not fibrin specific as they also have the property to convert circulating...
Others
8th Seah Cheng Siang Memorial Lecture: New Antithrombotic Agents
The tremendous interest in finding new anti-aggregating agents stems from the preeminent role that platelets play, not only in haemostasis and thrombosis, but also...
Original Article
Activated Protein C Resistance: A Study Among 60 Thromboembolic Patients in the Singapore Population
In 1993, Dahlback and colleagues described a new hereditary thrombophilia state-activated protein C resistance (AK-R). Further studies showed this to be the commonest genetic...
Original Article
Retinopathy of Prematurity in Very Low Birth Weight Infants
Retinopathy of prematurity (ROP), which could lead to visual impairment and blindness, is a recognised serious morbidity amongst surviving premature infants. The inverse relationship...
Others
The Use of the Laryngeal Mask Airway in Post-Tonsillectomy Haemorrhage—A Case Report
A 53-year-old man with a history of hypertension and asymptomatic Wolff-Parkinson-White syndrome was admitted to the hospital for an elective uvulopalatopharyngoplasty, tonsillectomy and bilateral...
Others
Pseudomembranous Tracheobronchitis Caused by Aspergillus in a Patient after Peripheral Blood Stem Cell Transplantation
Pseudomembranous tracheobronchitis caused by Aspergillus is a rare and lethal variant of invasive aspergillosis. It has been reported in a few series of immunocompromised...
Original Article
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,...
Original Article
Philadelphia Positive Acute Lymphoblastic Leukaemia (ALL): Clinico-Haematologic Characteristics, Molecular Analyses and 3-year Follow Up—A Single Institution Study
A number of specific chromosome abnormalities are associated with acute lymphoblastic leukaemia (ALL). The commonest in adults with B lineage ALL is the Philadelphia...
Original Article
Thrombotic and Haemorrhagic Complications in Patients with Mechanical Heart Valve Prostheses Attending the Singapore General Hospital Anticoagulation Clinic
Patients with mechanical heart-valve prosthesis receive lifelong anticoagulation. The management of these patients taking oral anticoagulants is aimed at achieving and maintaining adequate levels...
Others
Pathology of Ductal Carcinoma In situ of the Breast: A Heterogeneous Entity in Need of Greater Understanding
Breast cancer is the commonest malignancy in Singapore women, with an age-standardised rate of 46.1 per 100,000 per year and an annual increase in...
Original Article
Urinary Retention in Hospitalised Older Women
Voiding dysfunction is a relatively common problem in hospitalised older patients. Up to one-third of hospitalised elderly were reported to have post-void residual urine...
Others
The Need for Collaboration Between Clinicians and Statisticians: Some Experience and Examples
Many areas of medical research require the application of statistical techniques. Although most clinicians are taught some statistics as part of their basic medical...
Others
Clinical Update on Occupational Asthma
Occupational asthma is the most common occupational respiratory disease in the United Kingdom and also in Singapore. Recent estimates of the proportion of adult...
Others
Introduction to Bayesian Methods for Medical Research
The traditional statistical approach used in most areas of medical research involves what is commonly known as frequentist statistics. Bayesian methods provide an increasingly...
Others
Clinical Update on Helicobacter pylori
Helicobacter pylori is one of the commonest infections in human, affecting 30% to 50% of people worldwide. It is associated with the development of...
Original Article
Treatment of Acute Promyelocytic Leukaemia Using a Combination of All-trans Retinoic Acid and Chemotherapy
Acute promyelocytic leukaemia (APL), or acute myeloid leukaemia (AML)-M3 under the French-American-British (FAB) classification, is characterised by the following: a distinct expansion of promyelocytes...
Original Article
Abdominal Complications after Cardiac Surgery
Despite intensive therapeutic efforts, both the incidence and mortality of gastrointestinal complications after cardiac surgery employing cardiopulmonary bypass (CPB) have not decreased during the...
Original Article
CD4 Lymphocyte Enumeration in Patients with Human Immunodeficiency Virus Infection Using Three-Colour and Four-Colour Dual-Platform Flow Cytometry: An Inter-Laboratory Comparative Evaluation
Clinical flow cytometry provides a precise technology for the multiparameter analysis of the morphological (scatter) and immunofluorescence properties of stained leukocyte populations, as well...
Original Article
Deep Vein Thrombosis is Not Rare in Asia—The Singapore General Hospital Experience
Deep vein thrombosis (DVT), pulmonary embolism (PE), the postphlebitic syndrome and recurrent venous thromboembolism (VTE) are important and often preventable causes of early morbidity...
Original Article
High-dose Therapy followed by Autologous Haematopoietic Stem Cell Transplantation in Multiple Myeloma
Multiple myeloma (MM) is a disorder in which malignant plasma cells accumulate in the bone marrow and produce an immunoglobulin, usually monoclonal IgG or...
Others
Current Therapeutic Strategies for Type 2 Diabetes Mellitus
Type 2 diabetes mellitus is now recognised as a metabolic syndrome and although the treatment paradigm has shifted from one that focuses solely on...
Others
Update in the Management of Stroke
Stroke is the fourth leading cause of death and a leading cause of morbidity in Singapore. The number of hospital admissions for cerebrovascular disorders...
Review Article
New Aspects of the Blood Coagulation Cascade, Anticoagulants and Vein Thrombosis in Asia
Injury to blood vessels triggers haemostasis, a process that has evolved to achieve two superficially incompatible outcomes: arresting blood loss while protecting vessel patency...
Original Article
A Twelve-year Review of Radical Cystectomies in Singapore General Hospital
Bladder carcinoma is the tenth most common cancer affecting men in Singapore. It is more common in men with an age-standardised incidence rate of...
Others
Agreement or Prediction: Asking and Answering the Right Question
In an article published in this journal, Chia discusses the difference between measuring association and agreement. In this paper, we extend the discussion to...
Others
Age-related Macular Degeneration: What’s New
Age-related macular degeneration (AMD) is the leading cause of irreversible blindness in the developed western world, accounting for approximately 50% of all cases of...
Others
Management of Premalignant Lesions of the Cervix
Cervical cancer is one of the most common female cancers worldwide. It is ranked second only to breast cancer and in many underdeveloped countries,...
Others
Four Pregnancies in Two Patients with Essential Thrombocythaemia—A Case Report
Essential thrombocythaemia (ET) is a rare myeloproliferative disease which manifests with an elevated platelet count. It presents predominantly in the middle-aged population, occurring slightly...
Review Article
Idiopathic Thrombocytopenia in Pregnancy
Idiopathic thrombocytopenic purpura (ITP) is an autoimmune disorder in which platelets are sensitised with an antiplatelet autoantibody and then destroyed by the reticuloendothelial system.1...
Review Article
Thrombophilia in Pregnancy
A clear understanding of thrombophilia is becoming increasingly important in the practice of high-risk obstetrics. In addition to their role in thromboembolic disease, there...
Review Article
Management of Haematologic Malignancies in Pregnancy
Malignancy complicates the course of about 1 in 1000 pregnancies and is the second leading cause of death in women of reproductive age. The...
Original Article
Pregnancy in Women with Idiopathic Thrombocytopaenic Purpura
Idiopathic thrombocytopaenic purpura (ITP) is the most common autoimmune haematological disorder in pregnancy. The pathophysiology of the disease is peripheral destruction of platelets mediated...
Others
Clinical Update on Managing the Obstructed Airway
Maintaining a patent upper airway is the first principle in resuscitation and acute care. This is usually carried out by anaesthesiologists, emergency medicine physicians...
Others
Case Report on Recombinant Coagulation Factor VIIa in the Treatment of Three Haemophilia A Patients with Inhibitors in Singapore
Development of inhibitors against factor VIII is one of the main complications in the treatment of haemophiliacs. Inhibitors block the procoagulant effects of factor...
Original Article
Evaluation on the Use of a Portable Unit Versus the Laboratory for the Monitoring of International Normalized Ratio (INR) in Orally Anticoagulated Patients
Oral anticoagulation therapy is used for a number of conditions, namely deep venous thrombosis, pulmonary embolism, mechanical heart valves, embolic stroke as well as...
Others
Bronchopulmonary Dysplasia and Chronic Lung Disease of Infancy: Strategies for Prevention and Management
Bronchopulmonary dysplasia (BPD) and chronic lung disease of infancy (CLD) are two chronic pulmonary conditions which are the result of incomplete resolution or abnormal...
Others
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...
Others
The Combined Oral Contraceptive Pill in Women Over Age Forty
In the 1970s, several studies appeared to suggest that users of oral contraceptives (OCs) were at increased risk of cardiovascular events. More recently following...
Others
Contemporary Management of Fibroids
Fibroids are the most common, solid benign pelvic tumours occurring in about 30% of women beyond the age of 30. They are asymptomatic in...
Others
Investigating the Infertile Couple
Infertility is defined as the inability to conceive after 1 to 2 years of unprotected intercourse. In general, an estimated 84% of all women...
Others
Use of Hormone Replacement Therapy in the Asymptomatic Postmenopausal Woman: What is the Current Evidence?
The understanding of hormone replacement therapy (HRT) for postmenopausal women has undergone dramatic change since the publication of the results of the Women’s Health...
Others
Fetal Cells in Maternal Blood: State of the Art for Non-Invasive Prenatal Diagnosis
Without prenatal diagnosis, 1 in 50 babies are born with serious physical or mental handicap, and as many as 1 in 30 with some...
Others
Human Papillomavirus Triage of Patients with Atypical Squamous Cells of Undetermined Significance on Cervical Papanicolaou Smear
Cervical cancer affects >400,000 women a year worldwide, and represents a significant health issue for women. In the United States (US) however, screening programmes...
Others
Screening for Chromosomal Anomalies: First or Second Trimester, Biochemical or Ultrasound?
A chromosome abnormality contributes significantly to fetal loss during pregnancy, and perinatal morbidity and mortality. The contribution of chromosomal abnormalities to fetal loss decreases...
Others
Should Doctors Perform an Elective Caesarean Section on Request?
Caesarean sections performed without medical indication, better known as maternal request caesarean sections, have generated intense debate in recent times. While uncommon in the...
Others
Imaging-guided Bone Biopsy
Biopsy may be performed at surgery (open biopsy) or percutaneously (closed biopsy). Percutaneous bone biopsies are usually performed under imaging guidance using a variety...
Others
Carcinoma of the Cervix: Role of MR Imaging
In females with cancer, cervical carcinoma is second to breast cancer in both incidence and mortality worldwide. About 465,000 new cases are diagnosed each...
Others
The Use and Abuse of Steroids in Perinatal Medicine
Preterm birth, delivery prior to 37 weeks of gestational age, accounts for a major and disproportionate amount of infant and neonatal morbidity and mortality....
Editorial
Challenges in Perinatal Medicine
One of the significant milestones in the perinatal care in Singapore is the birth of the Perinatal Society of Singapore in March 1989. This...
Others
Surgical Management of Colorectal Metastases to the Liver
Colorectal carcinoma is the second commonest cancer in both males and females in Singapore, accounting for about 15% of all cancer cases. The liver...
Others
The Diagnosis and Management of Hypercalcaemia
Hypercalcaemia is a relatively common clinical problem with the widespread use of routine biochemical screening. Population studies have suggested a prevalence of 3% in...
Review Article
Adolescent Alcohol and Other Substance Use: Sharing the Australian Experience
The most common causes of morbidity in adolescence often have behavioural or social determinants, and can have enormous social and economic consequences for adolescent...
Review Article
Trauma-induced coagulopathy: Mechanisms and clinical management
Globally, trauma accounts for the highest number of mortalities in adolescents and young adults up to 49 years old.1 Of these deaths, a large...
Editorial
Coagulopathy related to trauma: Is it time for a goal-directed approach?
Trauma represents a leading cause of death globally, and post-traumatic haemorrhage accounts for 40% of early mortality in spite of recent improvements in modern...
Original Article
Clinico-pathological Analysis of Myelodysplastic Syndromes According to French-American-British Classification and International Prognostic Scoring System
Myelodysplastic syndromes (MDS) are a heterogeneous group of acquired clonal haemopoietic stem cell disorders characterised by ineffective haematopoiesis and peripheral cytopenia. The natural history...
Original Article
In vitro Biological Characteristics of Human Cord Blood-derived Megakaryocytes
Haematopoietic stem cell transplantation (HSCT) is now a well-established therapeutic modality for a broadening spectrum of medical problems. Umbilical cord blood (CB) has emerged...
Review Article
Unrelated Umbilical Cord Blood Transplantation in Children and Adults
Allogeneic haematopoietic stem cell transplantation (HSCT) is an established form of treatment for many high-risk haematological malignancies and marrow failure syndromes. The use of...
Review Article
Haematopoietic Graft Engineering
Haematopoietic stem cell transplantation (HSCT) has become an established modality for the treatment of cancer and diseases of the bone marrow and immunological system....
Editorial
Stem Cells: Current Usage and Future Potentials
In recent years, the term “haematopoeitic stem cell transplantation” has replaced “bone marrow transplantation”. It is more precise and emphasises the “haematopoeitic stem cell”...
Others
A Rare Case of Porphyria
Porphyrias are a rare and intriguing group of metabolic disorders. We report a case of congenital erythropoietic porphyria, one of the infrequent forms of...
Others
Extensive Calcinosis Cutis in Relapsed Acute Lymphoblastic Leukaemia
Calcinosis cutis is characterised by the aberrant deposition of calcium salts in the skin. In metastatic calcinosis cutis, calcium salts are precipitated in normal...
Others
Is it Possible to Slow the Progression of Myopia?
The rates of myopia, including high myopia , have been reported to be rising to epidemic proportions in Asia and solutions to this huge...
Others
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...
Original Article
Factors Associated With Functional Decline of Hospitalised Older Persons Following Discharge From an Acute Geriatric Unit
Hospitalisation is a stressful event for the older person. The physiological changes associated with ageing, such as decreased muscle strength and aerobic activity, reduced...
Original Article
Clinical Experience with Three Combination Regimens for the Treatment of High-risk Febrile Neutropenia
Cancer patients who become severely neutropenic as a result of intensive myelosuppressive chemotherapy are at high risk for developing life-threatening infections, and unless they...
Original Article
Measurable Predictive Factors for Progression to AIDS among HIV-infected Patients in Singapore
The first case of human immunodeficiency virus (HIV) infection was detected in Singapore on 16May 1985. The number of newly diagnosed HIV/acquired immuno-deficiency virus...
Review Article
Multimodal Antiemetic Therapy and Emetic Risk Profiling
In the last few years, hundreds of papers exploring the issue of postoperative nausea and vomiting (PONV) have been published. It has been estimated...
Original Article
Factors Associated with Decompression and Strabismus Surgery in Thyroid Eye Disease
Thyroid eye disease (TED) is a visually and socially disabling condition. Newly diagnosed patients are often fearful of sight-threatening complications that include optic nerve...
Original Article
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...
Letter to the Editor
Renal Artery Embolism in a Patient with Vague Abdominal Pain
Thromboembolism is a well-known complication of mitral stenosis especially when it is associated with cardiac dysrhythmias. However, renal artery embolism is a disease that...
Review Article
Menopause, Hormone Therapy and Cardiovascular and Cerebrovascular Disease
Cardiovascular disease is a major cause of morbidity among postmenopausal women. Up to the age of 50 years, the prevalence of coronary artery disease...
Original Article
Use of Antibiotics in a Haematology Ward – An Audit
Rising rates of antibiotic resistance prompted a review of antibiotic use policies hospitalwide. The Department of Haematology established a new set of consensus guidelines...
Original Article
The Association Between Parental Socioeconomic Status (SES) and Medical Students’ Personal and Professional Development
In order to commit to their mission and placement requirement efficiently and effectively, policy-makers need to decide which types of students their training units...
Original Article
Risk Factors for Conversion to Open Surgery in Patients With Acute Cholecystitis Undergoing Interval Laparoscopic Cholecystectomy
Laparoscopic cholecystectomy has become a routine surgical procedure in general surgical units all over the world. Its implementation has expanded dramatically and is considered...
Original Article
Cerebral Microangiopathy in Patients with Non-insulin-dependent Diabetes Mellitus
Cardiovascular complications account for the highest rate of morbidity and mortality in patients with diabetes mellitus (DM), type 1 and type 2, respectively. The...
Images in Medicine
An Unusual Cause of Lymphadenopathy and Rash
A 38-year-old Chinese man who was previously well, presented with one month of fever and a non-pruritic rash involving the face, trunk and upper...
Original Article
Bone Marrow Cytogenetics Workup: Application of Lean Management System to Determine if Additional Cell Workup is Helpful and Necessary to Analysis
Cytogenetic studies are important to the diagnosis and monitoring of various haematopoietic disorders such as myelodysplastic syndrome (MDS), acute myeloid leukemia (AML), acute lymphoblastic...
Images in Medicine
A Case of Congenital Haemolytic Anaemia and Thrombocytopenia
A 20-month-old boy came from Bangladesh to Singapore for medical consultation. He presented with progressive pallor, easy bruising, intermittent dark-coloured urine, and failure to...
Original Article
Peripheral Arterial Disease in Community-based Patients with Diabetes in Singapore: Results from a Primary Healthcare Study
Peripheral arterial disease (PAD) is a significant complication of diabetes mellitus and accounts for the majority of amputations among these patients with diabetes. In...
Original Article
Evaluation of Intensive Care Unit-acquired Urinary Tract Infections in Singapore
Urinary tract infection (UTI) is one of the most common types of nosocomial infections encountered in the inpatient settings including intensive care unit (ICU)....
Original Article
Prospective Audit of Febrile Neutropenia Management at a Tertiary University Hospital in Singapore
Febrile neutropenia (FN) is considered a medical emergency and remains a major cause of morbidity and mortality in Oncology and Haematology units worldwide. A...
Original Article
Central Clot Score at Computed Tomography as a Predictor of 30-day Mortality after Acute Pulmonary Embolism
Multi-detector Computed Tomography (MDCT) pulmonary angiography is currently the method of choice for the detection of acute pulmonary embolism (PE), because of its convenience,...
Original Article
Outbreak of Pandemic Influenza A (H1N1-2009) in Singapore, May to September 2009
The first cases of infection with a novel influenza A (H1N1) strain were reported in 6 cases in California and 2 cases in Texas...
Review Article
Rationale for Redefining Obesity in Asians
Obesity is a condition characterised by an excess of body fats. According to the World Health Organization (WHO), there were about 1.6 billion overweight...
Original Article
The Risk Factors for Ultrasound-diagnosed Non-alcoholic Fatty Liver Disease Among Adolescents
Non-alcoholic fatty liver disease (NAFLD) is increasing recognised as one of the most important causes of chronic liver disease in Western countries. It encompasses...
Original Article
Immunophenotypic, Cytogenetic and Clinical Features of 113 Acute Lymphoblastic Leukaemia Patients in China
Acute lymphoblastic leukaemia (ALL) is a heterogeneous disease with abnormal proliferation and accumulation of immature lymphoblasts within the bone marrow (BM), peripheral blood and...
Original Article
Non-haem Iron-mediated Oxidative Stress in Haemoglobin E Beta-thalassaemia
Thalassaemia is a genetic haemoglobinopathy in which the production of normal haemoglobin is partly or completely suppressed because of a defective synthesis of 1...
Original Article
Thrombocytopenia and its Related Factors: A Hospital-based, Cross-sectional Study
Thrombocytopenia is a common clinical problem found in laboratory results during health examinations. Blood platelets play an essential role in haemostasis, thrombosis and coagulation...
Original Article
Prevalence of Chronic Kidney Disease in Adults with Type 2 Diabetes Mellitus
According to the National Health Survey, the percentage of Singapore residents with diabetes mellitus (DM) aged between 18 and 69 years has risen from...
Editorial
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...
Review Article
Severe COVID-19 and coagulopathy: A systematic review and meta-analysis
Manifestations of the coronavirus disease 2019 (COVID-19) span a wide clinical spectrum, from asymptomatic carriers to critical illness with a wide range of complications....
Editorial
Estimating the impact of COVID-19-induced coagulopathy
The current coronavirus disease 2019 (COVID-19) pandemic has exerted significant strain on healthcare worldwide. Mostly asymptomatic or mildly symptomatic, COVID-19 caused by SARS-CoV-2 is...