1.Trends in mortality from acute myocardial infarction in the coronary care unit.
Peter TING ; Terrance S J CHUA ; Aaron WONG ; Ling Ling SIM ; Virlynn W D TAN ; Tian Hai KOH
Annals of the Academy of Medicine, Singapore 2007;36(12):974-979
INTRODUCTIONThe treatment and outcome of acute myocardial infarction (AMI) has evolved greatly over the past few decades. We compared the mortality and complication rates of patients with AMI admitted to the Coronary Care Unit (CCU) in 2002 to previously reported data.
MATERIALS AND METHODSAll data for AMI patients admitted to National Heart Centre CCU in 2002 were collected through the Singapore Cardiac Data Bank, including demographics, in hospital complications and mortality. These were compared to previous reports from the same institution in 1988, 1975 and 1967.
RESULTSA total of 516 cases with AMI were identified. A higher proportion of patients were aged >or=70 years in 2002 (31.8%) compared to 1988 (25%), 1975 (11%) and 1967 (5.6%). Acute percutaneous transluminal coronary angioplasty (PTCA) was performed in 250 of 516 (48%) patients in 2002. The overall in-patient and age-standardised mortality was 14.7% and 10% respectively, compared to 20.6% and 17% respectively in 1988 (P = 0.06). For the 250 patients who underwent acute PTCA, overall mortality was 5.2% compared to 24% in those who did not (P <0.001). Common in-hospital complications included heart failure (38%), non-sustained ventricular tachycardia (8%), atrial fibrillation (8%) and complete heart block (6%). Age, heart failure, bundle branch block and sustained ventricular tachycardia were associated with higher mortality by univariate analysis. On multivariate analysis, older age, heart failure and the absence of percutaneous intervention were independently associated with higher mortality.
CONCLUSIONIn-hospital mortality for AMI patients admitted to the CCU declined from 1988 to 2002 despite a higher proportion of elderly patients. The introduction of new therapies including drugs and percutaneous intervention may have contributed to this decline.
Acute Disease ; Age Factors ; Aged ; Angioplasty, Balloon, Coronary ; Coronary Care Units ; Critical Illness ; Female ; Humans ; Incidence ; Intensive Care Units ; Male ; Middle Aged ; Mortality ; trends ; Myocardial Infarction ; complications ; mortality ; therapy ; Prognosis ; Retrospective Studies ; Treatment Outcome
2.Melanoma in Singapore: A 20-year review of disease and treatment outcomes.
Pei Ming YEO ; Ziying Vanessa LIM ; Wei Ding Virlynn TAN ; Xiahong ZHAO ; Hui Yi CHIA ; Suat Hoon TAN ; Melissa Ching Ching TEO ; Melissa Wee Ping TAN
Annals of the Academy of Medicine, Singapore 2021;50(6):456-466
INTRODUCTION:
Melanomas in Asians have different clinicopathological characteristics and prognosis from melanomas in Caucasians. This study reviewed the epidemiology and treatment outcomes of cutaneous melanoma diagnosed at a tertiary referral dermatology centre in Singapore, which has a multiracial population. The study also determined whether Asians had comparable relapse-free and overall survival periods to Caucasians in Singapore.
METHOD:
This is a retrospective review of cutaneous melanoma cases in our centre between 1996 and 2015.
RESULTS:
Sixty-two cases of melanoma were diagnosed in 61 patients: 72.6% occurred in Chinese, 19.4% in Caucasians and 3.2% in Indians, with an over-representation of Caucasians. Superficial spreading melanoma, acral lentiginous melanoma and nodular melanoma comprised 37.1%, 35.5% and 22.6% of the cases, respectively. The median time interval to diagnosis was longer in Asians than Caucasians; median Breslow's thickness in Asians were significantly thicker than in Caucasians (2.6mm versus 0.9mm,
CONCLUSION
More physician and patient education on skin cancer awareness is needed in our Asian-predominant population for better outcomes.
Humans
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Melanoma/therapy*
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Prognosis
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Retrospective Studies
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Singapore/epidemiology*
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Skin Neoplasms/therapy*
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Treatment Outcome
3.Reperfusion strategy and mortality in ST-elevation myocardial infarction among patients with and without impaired renal function.
Mark Y CHAN ; Richard C BECKER ; Ling-Ling SIM ; Virlynn TAN ; Chi-Hang LEE ; Adrian F H LOW ; Swee-Guan TEO ; Kheng-Siang NG ; Huay-Cheem TAN ; Tiong-Cheng YEO
Annals of the Academy of Medicine, Singapore 2010;39(3):179-184
INTRODUCTIONSeveral randomised controlled trials have demonstrated better outcomes with primary percutaneous coronary intervention (PCI) over fibrinolytic therapy in the treatment of patients with ST-segment elevation myocardial infarction (STEMI) and normal renal function. Whether this benefit extends to patients with impaired renal function is uncertain.
MATERIALS AND METHODSWe studied 1672 patients with STEMI within 12 hours of symptom onset who were admitted to 2 major public hospitals in Singapore from 2000 to 2002. All patients received either upfront fibrinolytic or PCI as determined by the attending cardiologist. Serum creatinine was measured on admission and the glomerular filtration rate (GFR) was determined using the Modification of Diet in Renal Disease equation. The impact of reperfusion strategy on 30-ay mortality was then determined for patients with GFR > or =60 mL min-(1) 1.73 m-(2) and GFR <60 mL min-(1) 1.73 m-(2).
RESULTSThe mean age was 56 +/- 12 years (85% male) and mean GFR was 81 +/- 30 mL min-(1) 1.73 m-(2). Unadjusted 30-day mortality rates for fibrinolytic-treated vs primary PCI-treated patients were 29.4% vs 17.9%, P <0.05, in the impaired renal function group and 5.4% vs 3.1%, P <0.05, in the normal renal function group. After adjusting for covariates, primary PCI was associated with a significantly lower mortality in the normal renal function group [odds ratio (OR), 0.41; 95% confidence interval (CI), 0.19-0.89] but not in the impaired renal function group [OR, 0.70; 95% CI, 0.31-1.60].
CONCLUSIONSPrimary PCI was associated with improved 30-day survival among patients with normal renal function but not among those with impaired renal function. Randomised trials are needed to study the relative efficacy of both reperfusion strategies in patients with impaired renal function.
Adult ; Angioplasty, Balloon, Coronary ; Antifibrinolytic Agents ; therapeutic use ; Electrocardiography ; Female ; Glomerular Filtration Rate ; Humans ; Male ; Middle Aged ; Myocardial Infarction ; complications ; drug therapy ; surgery ; Registries ; Renal Insufficiency, Chronic ; complications ; Retrospective Studies ; Survival Analysis