1.Squamous Cell Carcinoma Arising from Linear Porokeratosis in a Young Chinese Man
Yin YL ; Chew KL ; Koh CK ; Jayalakshmi P
Malaysian Journal of Dermatology 2012;29(-):23-26
Porokeratosis is a specific disorder of epidermal keratinization, characterised
histologically by the presence of cornoid lamella1. Linear is a distinct, mosaic variant
of this autosomal dominant condition. There is a well recognized association between
porokeratosis and malignancy, especially the linear variant which has the highest
malignant potential2, 3.
2.Diabetes Management and Hypoglycemia in Safety Sensitive Jobs.
See Muah LEE ; David KOH ; Winnie KL CHUI ; Chee Fang SUM
Safety and Health at Work 2011;2(1):9-16
The majority of people diagnosed with diabetes mellitus are in the working age group in developing countries. The interrelationship of diabetes and work, that is, diabetes affecting work and work affecting diabetes, becomes an important issue for these people. Therapeutic options for the diabetic worker have been developed, and currently include various insulins, insulin sensitizers and secretagogues, incretin mimetics and enhancers, and alpha glucosidase inhibitors. Hypoglycemia and hypoglycaemic unawareness are important and unwanted treatment side effects. The risk they pose with respect to cognitive impairment can have safety implications. The understanding of the therapeutic options in the management of diabetic workers, blood glucose awareness training, and self-monitoring blood glucose will help to mitigate this risk. Employment decisions must also take into account the extent to which the jobs performed by the worker are safety sensitive. A risk assessment matrix, based on the extent to which a job is considered safety sensitive and based on the severity of the hypoglycaemia, may assist in determining one's fitness to work. Support at the workplace, such as a provision of healthy food options and arrangements for affected workers will be helpful for such workers. Arrangements include permission to carry and consume emergency sugar, flexible meal times, self-monitoring blood glucose when required, storage/disposal facilities for medicine such as insulin and needles, time off for medical appointments, and structured self-help programs.
alpha-Glucosidases
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Appointments and Schedules
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Blood Glucose
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Developing Countries
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Diabetes Mellitus
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Emergencies
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Employment
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Humans
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Hypoglycemia
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Incretins
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Insulin
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Insulins
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Meals
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Needles
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Risk Assessment
3.Gender-Specific Reference Charts of Fetal Head Circumference in a Singaporean Population.
George Sh YEO ; Maili QI ; Ruochen DU ; Padma Lata MAHAVADI ; Chee Fu YUNG ; Koh Cheng THOON ; Edwin Wh THIA ; Kai Lit TAN ; Fon Min LAI ; Nicole Kl LEE
Annals of the Academy of Medicine, Singapore 2017;46(10):367-373
INTRODUCTIONWith the global outbreak of Zika virus and its association with microcephaly, an up-to-date fetal head circumference (HC) nomogram is crucial to offer a reference standard in order to make an accurate diagnosis. This study was conducted to revise the local fetal HC nomogram.
MATERIALS AND METHODSIn this retrospective study, ultrasound data was used for construction of the fetal HC nomogram from a total of 6155 pregnancies in the ethnic Chinese population with low risk profile at KK Women's and Children's Hospital over a 10-year period. Regression model was fitted to calculate the mean and standard deviation of HC at each gestational age (GA). Comparison of HC between ethnic groups (no significant differences) and genders were made. The revised chart was compared with another commonly used reference chart (Hadlock). In an independent test population, different reference charts were used to estimate number of cases with microcephaly.
RESULTSA statistically significant difference of HC between the genders was observed across all gestational ages. Gender-specific reference charts and equation were computed. Our revised fetal HC chart showed a different distribution from the Hadlock chart. Compared with the gender-specific charts, the Hadlock HC chart would significantly under-report microcephaly cases in male fetuses, and tend to over-report in female fetuses.
CONCLUSIONThis study provides a new set of gender-specific fetal HC charts in the Singaporean population for antenatal ultrasound surveillance of microcephaly.
4.Effects of Cast Immobilisation on Skin Barrier Function.
Chin Yee WOO ; Mark Ja KOH ; Winnie Ky FUNG ; Cheri Sh CHAN ; Chong Bing CHUA ; Guan Tzu TAY ; Sanchalika ACHARYYA ; Gloria Fh CHEW ; Nicole Kl LEE ; Kevin Bl LIM
Annals of the Academy of Medicine, Singapore 2020;49(6):354-359
INTRODUCTION:
Cast immobilisation remains the mainstay of treatment for various fractures in paediatric patients, yet patients commonly complain of skin irritation and discomfort. This study aimed to perform a qualitative and quantitative evaluation of the effects of cast immobilisation on the skin of children and adolescents.
MATERIALS AND METHODS:
Patients aged 6-17 years of age with a fracture treated in a fiberglass short-arm or short-leg cast were recruited. Transepidermal water loss (TEWL), stratum corneum (SC) hydration, hair density and presence of any skin signs were assessed before and after cast. Patients were required to complete a weekly questionnaire to rate itch, malodour, warmth, and dampness of the skin under the cast.
RESULTS:
A total of 60 subjects completed the study. Thirty-six patients received a short-arm cast; 24 received a short-leg cast. Upon cast removal, TEWL was significantly increased on the volar surface of the arms and legs ( <0.05), and the dorsal surface of the arm ( <0.05). Likewise, SC hydration was significantly increased at most sites ( <0.05), except the volar surface of the leg ( = 0.513). There was no change in hair density. Throughout the duration of casting, there was an increase in itch and malodour scores.
CONCLUSION
Moderate but significant changes in TEWL, SC hydration and subjective symptoms were observed during the duration of cast immobilisation, demonstrating that cast immobilisation for up to 4 weeks exerts moderate adverse impact on patients' skin. Further studies to explore the use of better materials for cast immobilisation to improve skin barrier function and overall patient satisfaction are warranted.
5.Age And Gender Distribution Of Common Fractures In Children.
Koh KL ; Ng KA ; Roshan G ; Ziyad A ; Saw A
Malaysian Orthopaedic Journal 2019;13(Supplement A):181-
6.Vulvar basal cell carcinoma: clinical features and treatment outcomes from a tertiary care centre.
Rama P NAMUDURI ; Timothy Yk LIM ; Philip Kl YAM ; Rene GATSINGA ; Soo Kim LIM-TAN ; Sung Hock CHEW ; Mark Ja KOH ; Sorsiah MANSOR
Singapore medical journal 2019;60(9):479-482
We retrospectively reviewed the clinical features, management and outcomes of patients diagnosed with basal cell carcinoma (BCC) of the vulva at the Gynaecological Cancer Centre, KK Women's and Children's Hospital, Singapore, between 1 January 2000 and 28 February 2014. Patients with vulvar BCC were identified from the cancer registry, and their medical records reviewed and analysed. A total of 11 patients with vulvar BCC were identified. Mean age at diagnosis was 63 (range 30-85) years. Ethnically, ten patients were Chinese and one was Malay. Average time from onset of symptoms to diagnosis was 13.8 (range 2-60) months. The most common presenting symptoms were lump and pruritus. All patients were managed surgically. Recurrence was noted in only one patient. Vulvar BCC, although rare, has an excellent prognosis when managed appropriately. Histological diagnosis of all persistent papules, plaques and pigmented lesions is important for early diagnosis.