1.Country report: Singapore.
The Philippine Journal of Psychiatry 2015;37(1):25-32
2.The Role of the Family Doctor in HIV Medicine
The Singapore Family Physician 2013;39(1 (Supplement)):10-16
The outlook of people living with HIV (PLHIV) has changed for the better. With the discovery of effective drugs HIV is more like a chronic disease. The family doctor has several roles in HIV medicine: find, test, treat, and retain. Find - at risk individuals, and reduce their HIV risks. Test – to diagnosis those with acute HIV infection, to identify the asymptomatic patients, and to identify those with AIDS defining illnesses. Treat - participate in shared care management with HIV specialists. Retain – retain wellbeing of PLHIV - monitor for complications, provide patient education to help them minimise complications. Routine testing for HIV infection is now the practice. For treatment, A combination ART regimen consisting of two NRTIs + one active drug from one of the classes: NNRT, PI, INSTI, or a CCRS antagonist. Retaining the wellbeing of PLHIV requires monitoring for complications, and providing patient education to help them minimise complications.
3.Varicella-Zoster Infection with Secondary Bacteremia and Extensive Facial Abscesses
Kian-Guan Lee ; Mei-Chih Cheng
The Medical Journal of Malaysia 2012;67(5):529--
Varicella-zoster (chickenpox) infection is a common
infectious disease and generally considered to be selflimiting. However, severe bacterial complications associated with the disease have been reported. We describe a case of varicella-zoster infection with secondary Staphylococcus aureus bacteremia, preseptal orbital cellulitis and extensive facial abscesses. She was aggressively treated with intravenous antibiotics and repeated surgical drainage, and eventually made good recovery.
4.Non-linear association between long-term air pollution exposure and risk of metabolic dysfunction-associated steatotic liver disease.
Wei-Chun CHENG ; Pei-Yi WONG ; Chih-Da WU ; Pin-Nan CHENG ; Pei-Chen LEE ; Chung-Yi LI
Environmental Health and Preventive Medicine 2024;29():7-7
BACKGROUND:
Metabolic Dysfunction-associated Steatotic Liver Disease (MASLD) has become a global epidemic, and air pollution has been identified as a potential risk factor. This study aims to investigate the non-linear relationship between ambient air pollution and MASLD prevalence.
METHOD:
In this cross-sectional study, participants undergoing health checkups were assessed for three-year average air pollution exposure. MASLD diagnosis required hepatic steatosis with at least 1 out of 5 cardiometabolic criteria. A stepwise approach combining data visualization and regression modeling was used to determine the most appropriate link function between each of the six air pollutants and MASLD. A covariate-adjusted six-pollutant model was constructed accordingly.
RESULTS:
A total of 131,592 participants were included, with 40.6% met the criteria of MASLD. "Threshold link function," "interaction link function," and "restricted cubic spline (RCS) link functions" best-fitted associations between MASLD and PM2.5, PM10/CO, and O3 /SO2/NO2, respectively. In the six-pollutant model, significant positive associations were observed when pollutant concentrations were over: 34.64 µg/m3 for PM2.5, 57.93 µg/m3 for PM10, 56 µg/m3 for O3, below 643.6 µg/m3 for CO, and within 33 and 48 µg/m3 for NO2. The six-pollutant model using these best-fitted link functions demonstrated superior model fitting compared to exposure-categorized model or linear link function model assuming proportionality of odds.
CONCLUSION
Non-linear associations were found between air pollutants and MASLD prevalence. PM2.5, PM10, O3, CO, and NO2 exhibited positive associations with MASLD in specific concentration ranges, highlighting the need to consider non-linear relationships in assessing the impact of air pollution on MASLD.
Humans
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Nitrogen Dioxide
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Cross-Sectional Studies
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Air Pollution/analysis*
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Air Pollutants/analysis*
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Particulate Matter/analysis*
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Liver Diseases
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Environmental Exposure/analysis*
6.Intravitreal bevacizumab for the treatment of myopic choroidal neovascularisation in an Asian population.
Boon Kwang LOH ; Shu Yen LEE ; Jacob CHENG ; Ian YEO ; Doric WONG ; Chong Lye ANG
Annals of the Academy of Medicine, Singapore 2010;39(6):493-494
Aged
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Angiogenesis Inhibitors
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administration & dosage
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pharmacology
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therapeutic use
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Antibodies, Monoclonal
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administration & dosage
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pharmacology
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therapeutic use
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Antibodies, Monoclonal, Humanized
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Asia
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ethnology
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Bevacizumab
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Choroidal Neovascularization
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drug therapy
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ethnology
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Female
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Humans
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Male
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Middle Aged
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Myopia
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physiopathology
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Prospective Studies
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Treatment Outcome
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Vitreous Body
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blood supply
7.Panic attack and its correlation with acute coronary syndrome - more than just a diagnosis of exclusion.
Annals of the Academy of Medicine, Singapore 2010;39(3):197-202
The panic attack is able to mimic the clinical presentation of an acute coronary syndrome (ACS), to the point of being clinically indistinguishable without appropriate investigations. However, the literature actually demonstrates that the 2 conditions are more related than just being differential diagnoses. Through a review of the literature involving epidemiological studies, randomised controlled trials, systematic reviews and meta-analyses found on a Medline search, the relation between panic disorder and ACS is explored in greater depth. Panic disorder, a psychiatric condition with recurrent panic attacks, has been found to be an independent risk factor for subsequent coronary events. This has prognostic bearing and higher mortality rates. Through activation of the sympathetic system by differing upstream mechanisms, the 2 conditions have similar presentations. Another psychiatric differential diagnosis would be that of akathisia, as an adverse effect to antidepressant medications. An overview on the investigations, diagnostic process, treatment modalities and prognoses of the two conditions is presented. Panic disorders remain under-diagnosed, but various interviews are shown to allow physicians without psychiatric training to accurately pick up the condition. Comprehensive multidisciplinary approaches are needed to help patients with both coronary heart disease and anxiety disorder.
Acute Coronary Syndrome
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diagnosis
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physiopathology
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psychology
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Humans
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Panic Disorder
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complications
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diagnosis
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physiopathology
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Risk Factors
8.Effect of direct moxibustion on blood pressure and clinical symptoms in elderly patients with essential hypertension
Eunhwa LEE ; Cili ZHOU ; Tianping ZHAO ; Xianchuan CHEN ; Ling CHENG ; Huirong LIU ; Huangan WU ; Xiaopeng MA
Journal of Acupuncture and Tuina Science 2016;14(2):73-81
Objective:To assess the effects of direct moxibustion on 24-hour ambulatory blood pressure (ABP) and clinical symptoms of traditional Chinese medicine (TCM) in elderly patients with essential hypertension, and to explore the antihypertensive effect and influencing factors of moxibustion. Methods:A total of 101 elderly hypertension patients who met the inclusion criteria were randomly assigned to a direct moxibustion I group (n=33), a direct moxibustion II group (n=34), and a control group (n=34). The treatment of calcium antagonist (CCB) orangiotensin II receptor antagonist (ARB) was adopted in the control group. The treatment of direct moxibustion I plus the same medicine as the control group were adopted in the direct moxibustion I group, five cones per acupoint and three times per week, for 5 weeks in total. The treatment of direct moxibustion II plus the same medicine as the control groupwere adopted in the direct moxibustion II group, five cones per acupoint and three times per week, for 5 weeks in total. The changes of 24-hour ABP and clinical symptoms of TCM after treatment were compared in the three groups. Results: The mean 24-hour ambulatory systolic blood pressure (mean 24 h ASBP), night ASBP, percentage of mean 24-hour ambulatory diastolic blood pressure (mean 24 h ADBP)>90 mmHg, and percentage of day ADBP>90 mmHg in the control group were elevated after treatment (P<0.05). The percentage of night ADBP>80 mmHg in the direct moxibustion I group was reduced by treatment (P<0.01). There were no significant differences in the other outcome measures of 24 h ABP, such as day ASBP, percentage of mean 24 h ASBP>140 mmHg, percentage of day ASBP>140 mmHg, percentage of night ASBP>120 mmHg , mean 24 h ADBP, day ADBP, night ADBP, 24 h ambulatory pulse pressure (APP), after treatment in all groups (P>0.05). The degree of improvement of the clinical symptoms of TCM showed significant differences among the three groups of patients (P<0.01). The total effective rate in the direct moxibustion I group was 73.3%, which was superior to those in the direct moxibustion II group and control group (13.3% and 10.0%, respectively). Conclusion:The direct moxibustion has benign regulative effect on blood pressure of elderly patients with essential hypertension, and improves their clinical symptoms. The direct moxibustion method I (burning the next moxa cone after the previous one had totally burnt out) was superior to method II (burning the next moxa cone when the previous one had not totally burnt out ) in lowering blood pressure and improving symptoms of elderly patients with essential hypertension.
9.Lack of Rb2/p130 genetic alteration in Malaysian nasopharyngeal carcinoma.
Susan Ling Ling Hoe ; Ee Soo Lee ; Alan Soo Beng Khoo ; Suat-Cheng Peh
The Malaysian journal of pathology 2009;31(1):53-6
The retinoblastoma-related gene Rb2/p130 has been reported to be mutated in several malignancies such as lung cancer and Burkitt's lymphoma. Nasopharyngeal carcinoma (NPC) is a common cancer in Malaysia especially amongst the ethnic Chinese. We screened for Rb2/p130 gene (exons 19 to 21) mutations in 53 archival NPC samples via PCR-SSCP-direct sequencing approach. Only one sample had a base change which involved a serine to glycine substitution at codon 995 (S995G). We conclude that Rb2/p130 genetic alterations are infrequent in NPC and may not be essential for the pathogenesis of the disease.
Genetic
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MALAYSIAN
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Genes
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Carcinoma
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Malignant Neoplasms
10.Pattern and degree of radiation exposure during endovascular surgery performed using a mobile C-arm or in a hybrid room
Annals of Surgical Treatment and Research 2019;96(3):131-137
PURPOSE: A prospective study was conducted to compare radiation exposure to different parts of an endovascular surgeon's body when using a mobile C-arm with that in a hybrid room. METHODS: Exposure during individual procedures performed on 39 patients with a mobile C-arm and 42 patients in a hybrid room, from July 2016 to December 2016, was evaluated. RESULTS: The procedures performed, fluoroscopy time, and dose-area product were not significantly different between groups. The dose-area product per second in the hybrid room group appeared greater than in the C-arm group (4.5 µGym2/sec vs. 3.1 µGym2/sec). In the C-arm group, the peak skin dose on the right neck (1.77 mSv) and shoulder (1.48 mSv) appeared higher than those on their left side (0.32 mSv, 0.53 mSv, respectively) and the counterparts of the hybrid room group (0.88 mSv, 0.20 mSv, respectively). CONCLUSION: The peak skin dose in the hybrid room appeared highest for the lower part of the protective apron. The dose-area product per second seemed to be greater in the hybrid room than when using the C-arm. Thus, attention should be focused on protecting the surgeon's upper body when using the C-arm and the lower body when using the hybrid room.
Endovascular Procedures
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Fluoroscopy
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Humans
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Neck
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Operating Rooms
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Prospective Studies
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Radiation Exposure
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Shoulder
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Skin
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Surgeons