1.A Retrospective Cohort Study of Epidemiology and Clinical Outcome in Lichen Planus.
Yik Weng YEW ; Yi Chun LAI ; Roy CHAN
Annals of the Academy of Medicine, Singapore 2016;45(11):516-519
Administration, Cutaneous
;
Administration, Topical
;
Betamethasone Valerate
;
therapeutic use
;
China
;
Clobetasol
;
therapeutic use
;
Cohort Studies
;
Diabetes Mellitus
;
epidemiology
;
Ethnic Groups
;
statistics & numerical data
;
Female
;
Glucocorticoids
;
therapeutic use
;
Humans
;
Hyperlipidemias
;
epidemiology
;
India
;
Lichen Planus
;
drug therapy
;
epidemiology
;
Malaysia
;
Male
;
Middle Aged
;
Multivariate Analysis
;
Prognosis
;
Proportional Hazards Models
;
Retrospective Studies
;
Risk Factors
;
Singapore
;
epidemiology
;
Triamcinolone
;
therapeutic use
2.Smoking and Hand Dermatitis in the United States Adult Population.
Annals of Dermatology 2016;28(2):164-171
BACKGROUND: Hand dermatitis is a common chronic relapsing skin disease resulting from a variety of causes, including endogenous predisposition and environmental exposures to irritants and allergens. Lifestyle factors such as smoking have been implicated in hand dermatitis. OBJECTIVE: To evaluate the association between tobacco exposure and hand dermatitis using the 2003~2004 National Health and Nutrition Examination Survey (NHANES) database. METHODS: Data were retrieved and analyzed from 1,301 participants, aged 20~59 years, from the 2003~2004 NHANES questionnaire study who completed health examination and blood tests. Diagnosis of hand dermatitis was based on standardized photographs of the dorsal and palmar views of the hands read by two dermatologists. RESULTS: There were 38 diagnosed cases of active hand dermatitis out of the 1,301 study participants (2.9%). Heavy smokers (>15 g tobacco daily) were 5.11 times more likely to have active hand dermatitis (odds ratio [OR], 5.11; 95% confidence interval [CI], 1.39~18.88; p=0.014). Those with serum cotinine >3 ng/ml were also more likely to have active hand dermatitis, compared with those with serum cotinine ≤3 ng/ml (OR, 2.50; 95% CI, 1.26~4.95; p=0.007). After adjusting for confounding factors such as age, atopic diathesis, occupational groups, and physical activity, the association between tobacco exposure and active hand dermatitis remained significant. CONCLUSION: Smoking has a significant association with the presence of active hand dermatitis. It is important to consider smoking cessation as part of management of hand dermatitis.
Adult*
;
Allergens
;
Cotinine
;
Dermatitis*
;
Diagnosis
;
Disease Susceptibility
;
Eczema
;
Environmental Exposure
;
Epidemiology
;
Hand*
;
Hematologic Tests
;
Humans
;
Irritants
;
Life Style
;
Motor Activity
;
Nutrition Surveys
;
Occupational Groups
;
Skin Diseases
;
Smoke*
;
Smoking Cessation
;
Smoking*
;
Tobacco
;
United States*
3.Nineteen-year experience of paediatric renal transplantation in Singapore.
Kar Hui NG ; Pramod SHRESTHA ; Eric ARAGON ; Yew Weng LAU ; Wee Song YEO ; Yiong Huak CHAN ; Prabhakaran KRISHNAN ; Hui Kim YAP
Annals of the Academy of Medicine, Singapore 2009;38(4):300-309
INTRODUCTIONRenal transplantation is the treatment of choice for children with end-stage renal failure (ESRF). The paediatric renal transplant programme in Singapore was initiated in 1989. This study aimed to examine our outcomes over the 19-year period from 1989 to 2007.
MATERIALS AND METHODSA total of 38 renal transplants were performed at our centre. Another 4 patients with overseas transplants who returned within 3 weeks post-transplant were included. The proportion of living donor (LD) transplants was 61.9%. Structural abnormalities and glomerulopathies were the most common aetiologies comprising 33% each. Median age at transplant was 13.9 years and median waiting time was 2.2 years. LD transplant recipients were younger and had a shorter waiting time than deceased donor (DD) recipients.
RESULTSOverall patient survival rates were 95%, 92%, 86% and 86% at 1, 5, 10 and 15 years, respectively. There were 4 deaths, of which 3 were due to infections. Graft survival rates at 1, 5, 10 and 15 years for LD and DD transplants were 100%, 89.5%, 67.3%, 67.3% and 80.8%, 56.5%, 42.2%, 28.3% respectively, and were significantly higher in LD transplants. The main cause of graft loss was rejection following non-adherence. Multivariate analysis showed male gender, late acute rejections and acute tubular necrosis as predictors of graft failure. There was a high incidence of early bacterial infections (42.9%) and cytomegalovirus disease (16.7%).
CONCLUSIONOur graft survival rates for LD transplants were comparable to North American rates, although our DD transplant rates were slightly worse, probably a reflection of the prevailing transplant policies.
Adolescent ; Child ; Child, Preschool ; Female ; Graft Survival ; Humans ; Kidney Failure, Chronic ; surgery ; Kidney Transplantation ; utilization ; Living Donors ; supply & distribution ; Male ; Multivariate Analysis ; Outcome Assessment (Health Care) ; trends ; Postoperative Complications ; epidemiology ; Singapore ; epidemiology ; Survival Analysis ; Young Adult
4.The effects of gel-based manicure on pulse oximetry.
Jia Lin Jacklyn YEK ; Hairil Rizal ABDULLAH ; June Pheck Suan GOH ; Yew Weng CHAN
Singapore medical journal 2019;60(8):432-435
INTRODUCTION:
Pulse oximetry is the standard monitoring technique of functional oxygen saturation (SpO). As the use of fingernail polish has been described to alter SpO readings, its removal is commonly recommended prior to measurement. Gel-based manicures have gained popularity in recent years due to their attractiveness and longevity. However, the removal of gel nail polish requires a specialised procedure. Valuable time and resources can be saved if removal can be avoided. To our knowledge, there are no available studies on the effect of gel-based manicures on pulse oximetry readings. Hence, we evaluated the effect with two oximeters, using different technology and wavelength combinations.
METHODS:
17 healthy female adult volunteers were recruited for this single-blind randomised controlled trial. Subjects with hypothermia, hypotension, poor plethysmographic waveform and nail pathology were excluded. Colours tested were: black, purple, navy blue, green, light blue, white, yellow, orange, pink and red. Pulse oximetry was measured at 15- and 30-second intervals using two different pulse oximeters, the Philips M1191BL and Masimo SET®. Means were compared using paired t-tests.
RESULTS:
Using the Masimo oximeter, light blue (ΔM = 0.97% ± 0.96%; p = 0.001) and orange (ΔM = 0.76 ± 1.17%; p = 0.016) gel nail polish resulted in a statistically significant increase from baseline SpO readings. With the Philips oximeter, the limits of agreement ranged from 2% for pink to 17% for black, indicating imprecision.
CONCLUSION
Gel-based manicures can result in overestimations of actual readings, delaying detection of hypoxaemia. Gel nail polish should be routinely removed or an alternative monitoring technique sought.
5.Point of care ultrasound: a clinical decision support tool for COVID-19.
Suneel Ramesh DESAI ; Jolin WONG ; Thangavelautham SUHITHARAN ; Yew Weng CHAN ; Shin Yi NG
Singapore medical journal 2023;64(4):226-236
The COVID-19 global pandemic has overwhelmed health services with large numbers of patients presenting to hospital, requiring immediate triage and diagnosis. Complications include acute respiratory distress syndrome, myocarditis, septic shock, and multiple organ failure. Point of care ultrasound is recommended for critical care triage and monitoring in COVID-19 by specialist critical care societies, however current guidance has mainly been published in webinar format, not a comprehensive review. Important limitations of point of care ultrasound include inter-rater variability and subjectivity in interpretation of imaging findings, as well as infection control concerns. A practical approach to clinical integration of point of care ultrasound findings in COVID-19 patients is presented to enhance consistency in critical care decision making, and relevant infection control guidelines and operator precautions are discussed, based on a narrative review of the literature.
Humans
;
COVID-19/complications*
;
SARS-CoV-2
;
Point-of-Care Systems
;
Decision Support Systems, Clinical
;
Ultrasonography