Displaying publications 1 - 20 of 31 in total

Abstract:
Sort:
  1. Chow SK
    Asia Pac Allergy, 2012 Apr;2(2):149-60.
    PMID: 22701866 DOI: 10.5415/apallergy.2012.2.2.149
    This guideline is a result of a consensus reached during the 19th Asian-Australasian Regional Conference of Dermatology by the Asian Academy of Dermatology and Venereology Study Group in collaboration with the League of Asian Dermatological Societies in 2010. Urticaria has a profound impact on the quality of life in Asia and the need for effective treatment is required. In line with the EAACI/GA(2)LEN/EDF/WAO guideline for the management of urticaria the recommended first-line treatment is new generation, non-sedating H1-antihistamines. If standard dosing is ineffective, increasing the dosage up to four-fold is recommended. For patients who do not respond to a four-fold increase in dosage of non-sedating H1-antihistamines, it is recommended that therapies such as H2-antihistamine, leukotriene antagonist, and cyclosporine A should be added to the antihistamine treatment. In the choice of second-line treatment, both their costs and risk/benefit profiles are the most important considerations.
  2. Chow SK, Yeap SS
    Clin Rheumatol, 2000;19(6):484-5.
    PMID: 11147762
    'Amyotrophic dermatomyositis' (ADM) is used to describe a small subgroup of patients with the typical skin rash associated with dermatomyositis but without muscle involvement. Lung involvement in ADM is rare. We report on the management of a patient with ADM associated with pulmonary fibrosis at presentation, and her response to corticosteroid treatment.
  3. Sockalingam S, Chow SK, Sthaneshwar P
    Int J Rheum Dis, 2009 Sep;12(3):211-5.
    PMID: 20374348 DOI: 10.1111/j.1756-185X.2009.01412.x
    AIM: The objectives of this study are to provide data regarding the prevalence of anti-cyclic citrullinated peptide (CCP) antibodies in Malaysian rheumatoid arthritis (RA) patients and to correlate the levels of anti-CCP antibody with the Disease Activity Score (DAS).
    METHOD: We studied the prevalence of anti-CCP antibodies in 51 RA patients attending our clinic and 29 controls. We also looked for correlation between anti-CCP antibody levels with the DAS and parameters such as duration of disease, rheumatoid factor (RF) and disease-modifying anti rheumatic drug (DMARD) usage.
    RESULTS: None of the controls demonstrated anti-CCP antibodies. Forty-one out of 51 patients (80.4%) were positive for anti-CCP antibodies. Sensitivity and specificity were 80.4% and 100% respectively in this study. Anti-CCP levels correlated significantly with rheumatoid factor, but no correlation was observed with the other parameters.
    CONCLUSIONS: Anti-CCP antibody is prevalent in Malaysian RA patients at 80.4% and more sensitive than RF in our cohort of established RA patients. Even though the anti-CCP levels correlated with RF, it did not show correlation with DAS.
  4. Bee PC, Chow SK, Tan LH
    Med J Malaysia, 2003 Dec;58(5):777-9.
    PMID: 15190670
    Pancytopaenia is a rare clinical presentation of severe leptospirosis. We would like to report a case of severe leptospirosis that progressed to pancytopaenia despite initial penicillin therapy. The patient needed a second course of antibiotic with doxycycline to improve his persistent symptoms and cytopaenia. Persistent pancytopaenia in severe leptospirosis and its management were reviewed.
  5. Chow SK, Yew KC, Yeap SS
    Family Physician, 2003;12(1):33-34.
    Musculoskeletal complaints are one of the most common presenting symptoms to primary care physicians. However, in Malaysia, there has been no prospective survey to look at this problem. This was a descriptive study to look at the prevalence of non-traumatic musculoskeletal complaints presenting to the primary care clinic at University Malaya Medical Center, Kuala Lumpur. Over a 3-week period, there were 408/4201 patients (9.7%) with non-traumatic musculoskeletal disorders. The most common regional problem was backache and the most commonly made diagnosis was non-specific musculoskeletal pain. In conclusion, musculoskeletal disorders form a significant proportion of primary care consultations and thus should be included in the curriculum for the primary care physician training. Keywords: musculoskeletal disorders, arthritis, primary care
    Study site: Primary care clinic, University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia.
  6. Pavai S, Sargunan S, Zain AA, Chow SK
    Malays J Pathol, 2011 Dec;33(2):101-6.
    PMID: 22299210 MyJurnal
    Aim: Autoantibodies against cyclic citrullinated peptide (anti-CCP) are considered to be a sensitive and specific marker for rheumatoid arthritis (RA). This study evaluated the diagnostic and analytical performances of the automated anti-CCP assay.
    Materials and Method: Sera from 80 patients with established RA, 65 from other rheumatic diseases (non-RA) and 55 from healthy controls were studied using second generation anti-CCP. Rheumatoid factor (RF) was also assayed in each sample, and the results were compared to the anti-CCP fi ndings. Serum pools were used to determine the precision and linearity.
    Results: At a cut-off of 7.4 U/ml for anti-CCP, the sensitivity and specificity for RA were 65% and 98% respectively. RF had a sensitivity of 58% and a lower specifi city of 93 % than anti-CCP. Conclusion: The high specificity of the assay suggests that anti-CCP is useful in the diagnosis of rheumatoid arthritis and in our cohort of study population anti-CCP exhibits a better diagnostic value than RF. A considerable proportion (28%) of RF-negative RA patients were anti-CCP positive. Based on analytical performance of the assay, we conclude that full automation and high throughput features of AxSYM makes it an ideal platform for routine testing of anti-CCP.
    Study site: Rheumatology clinic, University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia
  7. Yeap SS, Chow SK, Manivasagar M, Veerapen K, Wang F
    Med J Malaysia, 2001 Sep;56(3):308-12.
    PMID: 11732075
    A retrospective analysis of the case records of 494 systemic lupus erythematosus (SLE) patients under follow-up at University Hospital, Kuala Lumpur during 1976-1990 was performed. Overall mortality was 20.2% (100 patients). The causes of death were infection (30%), renal (15%), respiratory (14%), neurological (5%), cardiovascular (7%), other causes (2%) and unknown (27%). Active SLE was a contributing factor in 19% of the deaths. The patients who died had significantly more renal disease, neurological disease, serositis or thrombocytopenia by the end of the first year of disease compared to the survivors. As in other series, infection and active SLE remain important causes of death.
  8. Kong KF, Yeap SS, Chow SK, Phipps ME
    Autoimmunity, 2002 Jul;35(4):235-9.
    PMID: 12482190
    Worldwide population studies have generally agreed that rheumatoid arthritis (RA) is associated with a group of HLA-DRB1 alleles which share a common amino acid sequence at residues 70-74. This represents the first study to investigate the association of HLA-DRB1 genes with susceptibility to RA amongst Malay, Chinese and Indian ethnic groups in Malaysia. One hundred and thirty three RA patients and one hundred and sixty seven healthy controls were recruited. The HLA-DRB1 alleles were studied using the Phototyping method. The subtypes of HLA-DR4 were detected by "high resolution" PCR-SSP DRB1*04 typing techniques. The prevalence of HLA-DRB1*0405 was significantly higher in Malay patients with RA than in healthy controls (28.9 vs. 8.3%, p = 0.0016, OR = 4.48, 95% CI = 1.26-16.69). Similarly, DRB1*0405 was more common in Chinese RA patients than in controls (30.0 vs. 6.7%, p = 0.0029, OR = 6.00, 95% CI = 1.67-23.48). In addition, DRB1*0901 was a predisposing factor (32.0 vs. 6.7%,p = 0.0015, OR = 6.59, 95% CI = 1.85-25.64) and *0301/04 had a protective role (4.0vs. 25.0%, p = 0.00562, OR = 0.13, 95% CI = 0.02-0.62) in Malaysian Chinese RA. RA in Indians was associated with DRB1*1001 (51.1 vs. 8.5%,p = 0.00002, OR = 11.24, 95% CI = 3.13-44.18). DRB1*0701 (13.3 vs. 42.6%,p = 0.0022, OR = 2.73, 95% CI = 1.40-5.37) may have a protective effect. Therefore, in the Malaysian population, RA is primarily associated with the QRRAA motif, and we suggest that genetic factors play a crucial role in the pathogenesis of RA, compared to environmental factors.
  9. Goh EML, Tan LC, Chow SK, Teh LK, Yeap SS
    DOI: 10.1046/j.0219-0494.2003.00021.x
    Aim: To determine the prevalence of the use of complementary medicine in patients with systemic lupus erythematosus (SLE)., Method: A prospective survey was conducted of 132 patients using a standard questionnaire., Results: Of the 132 patients, 15.2% were on alternative therapy and 56.7% were taking food supplements. The common types of alternative therapy taken were oral traditional herbs (50%) and noni juice (20%). Vitamin C, calcium, vitamin E, vitamin B, Spirulina, evening primrose oil, fish oil and multivitamins were the commonest food supplements. There was no significant relationships between taking alternative treatment and educational level (P = 0.16), income (P = 0.05) or race (P = 0.42) of the patients. The majority of these patients took these therapies or supplements for up to 1 year. Up to 70% of the patients had not consulted a doctor before taking these therapies, with immediate family members and friends being the main sources of recommendation. The majority of patients spent RM50-RM500 (US$13-US$132) for 2 months' supply of medications. In conclusion, 15.2% of SLE patients in our study were on alternative therapy and 57.6% on food supplements., Conclusion: Physicians should be aware of these practices which should be taken into account during the history-taking and subsequent management of the patients.
  10. Chow SK, Guan YK, Chong HY, Zainal NZ, Yeap SS
    Objectives: To determine the prevalence of self-reported depression among Malaysian patients with rheumatoid arthritis (RA) and to study the correlates and independent predictors for depression. Methods: The Hospital Anxiety and Depression Scale (HADS) questionnaire wasused to assess depressive symptoms. Disease activity was determined by theduration of morning stiffness, visual analogue scale for pain and fatigue, numberof swollen/tender joint and the modified disease activity score (DAS). The Health Assessment Questionnaire (HAQ) was used to assess the patients' functionalstatus. Results: Depression was recorded in 17.2% of the 93 patients. Painful joints(p<0.001), active disease (p<0.001) and poor joint function (p<0.001) correlatedsignificantly with depression. Poor functional status assessed by the HAO was themost significant Independent predictor for depression in RA patients, (OR=5.4,p=0.028). Conclusion: The prevalence of depression In this cohort of Asian RA patients was17.2%. Painful joints and functional disability were associated with a higherIncidence of depression. RA Patients with severe functional disability should beassessed for depression that may need to be treated Independently.
  11. Yap HY, Siow TS, Chow SK, Teow SY
    Adv Virol, 2019;2019:6464521.
    PMID: 31049064 DOI: 10.1155/2019/6464521
    Epstein-Barr virus (EBV) is one of the common human herpesvirus types in the world. EBV is known to infect more than 95% of adults in the world. The virus mainly infects B lymphocytes and could immortalize and transform the cells into EBV-bearing lymphoblastoid cell lines (LCLs). Limited studies have been focused on characterizing the surface marker expression of the immortalized LCLs. This study demonstrates the generation of 15 LCLs from sixteen rheumatoid arthritis (RA) patients and a healthy volunteer using B95-8 marmoset-derived EBV. The success rate of LCL generation was 88.23%. All CD19+ LCLs expressed CD23 (16.94-58.9%) and CD27 (15.74-80.89%) on cell surface. Our data demonstrated two distinct categories of LCLs (fast- and slow-growing) (p<0.05) based on their doubling time. The slow-growing LCLs showed lower CD23 level (35.28%) compared to fast-growing LCLs (42.39%). In contrast, the slow-growing LCLs showed higher percentage in both CD27 alone and CD23+CD27+ in combination. Overall, these findings may suggest the correlations of cellular CD23 and CD27 expression with the proliferation rate of the generated LCLs. Increase expression of CD23 may play a role in EBV immortalization of B-cells and the growth and maintenance of the EBV-transformed LCLs while CD27 expression might have inhibitory effects on LCL proliferation. Further investigations are warranted to these speculations.

    Study site: Sunway Medical Centre, Malaysia
  12. Goh EML, Chow SK, Yeap SS
    JUMMEC, 2002;7(2):86-91.
    Osteoarthritis is the most common joint disorder in the human population. It is characterized by the destruction of articular cartilage and the overgrowth of marginal and subchondral bone. The commonest weight bearing joint affected is that of the knee, affecting over one third of people over Ihe age of 65 years. This article reviews the recent principles of non surgical management of osteoarthritis. This is divided into non drug management such as primary prevention, physiotherapy, occupational therapy and patient education. Drug management will include the use of different types of analgesics. viscosupplementation as well as joint injection. KEY WORDS: Osteoarthritis, management
  13. Mohd-Yusuf Y, Phipps ME, Chow SK, Yeap SS
    Immunol Lett, 2011 Sep 30;139(1-2):68-72.
    PMID: 21658414 DOI: 10.1016/j.imlet.2011.05.001
    We investigated the association of the HLA genes in Malaysian patients with systemic lupus erythematosus (SLE) and their associations with the clinical manifestations in 160 SLE patients (99 Chinese and 61 Malays) and 107 healthy control individuals (58 Chinese and 49 Malays) were studied. Sequence specific primer amplification (PCR-SSP) phototyping techniques were used to analyse 25 HLA-A allele groups, 31 HLA-DR allele groups and 9 HLA-DQ allele groups. Appreciable increases in allele frequencies of HLA-A*11, DRB1*0701, DRB1*1601-1606, DRB5*01-02 and DQB1*05, and decrease in HLA-DRB1*1101-1121, 1411, DRB1*1201-3, DRB1*1301-22, DRB3*0101, 0201, 0202, 0203, 0301 and DQB1*0301, 1304 in SLE patients compared with healthy control individuals. However, after Bonferroni correction (p(c)<0.05) only HLA-A*1101, 1102, DRB5*01-02, DQB1*05, DRB1*1201-3, DRB3*0101, 0201, 0202, 0203, 0301 and DQB1*0301, 0304 remained significant. Allele frequencies of DRB1*0701 and DRB4*0101101, 0102, 0103, DQB1*05, DRB1*1301-22, DRB3*0101, 0201, 0202, 0203, 0301 and DQB1*0301, 0304 were significantly increased in Malay SLE patients compared with healthy control individuals. In contrast, Chinese SLE patients had increased allele frequencies of DRB1*1601-1606, DQB1*05, DRB1*1201-3, DRB3*0101, 0201, 0202, 0203, 0301, DRB3*0101, 0201, 0202, 0203, 0301 and DQB1*0301, 0304 compared with healthy control individuals. HLA-A*6801-02 and DRB1*1601-1606 frequencies appeared elevated in a subset of patients with serositis and DRB1* 0401-1122 frequency was elevated in those displaying neurologic disorder. However, unequivocal evidence of these associations would require investigation of substantially larger cohorts. On the whole, our findings suggest that HLA allele associations with SLE are race specific in Malays and Chinese.
    Study site: SLE clinic, University of Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia
  14. Yeap SS, Mohd A, Kumar G, Kong KF, Chow SK, Goh EM, et al.
    Autoimmunity, 2007 May;40(3):187-90.
    PMID: 17453717 DOI: 10.1080/08916930701233755
    OBJECTIVE:
    To assess the relationship between the HLA-DRB1 genes with disease severity as assessed by radiological erosions in Malaysian patients with rheumatoid arthritis (RA).

    METHODS:
    In this cross-sectional study, we studied 61 RA patients who fulfilled the ACR criteria for the diagnosis of RA. HLA-DRB1 genotyping was performed by sequence specific primer (SSP) - PCR. Radiological grading and erosive score of the hands and wrists was calculated according to the Larsen-Dale method. Demographic data and treatment given to the patients were obtained from their case records.

    RESULTS:
    Fifty-six females and five males were studied from three ethnic groups. In 57 patients with erosions, rheumatoid factor was detected in 80%, HLA-DR4 in 40%, HLA-DRB1*0405 in 24% and shared epitope (SE) in 31%. The median delay in starting DMARDs was 24 months. The presence of rheumatoid factor, HLA-DR4 and HLA-DRB1*0405 were not significantly associated with a worse erosive score. Patients who possessed the SE had a higher erosive scores, compared to those who did not (p = 0.05). Concurrently, a delay in starting DMARD was associated with a high erosive score (p = 0.023, r = 0.348). However, after adjustment for the delay in starting DMARD, SE was no longer significantly associated with the erosive score.

    CONCLUSIONS:
    In these patients, the delay in starting DMARDs had a greater influence on the erosive score than SE alone. Whilst we cannot discount the contribution of the SE presence, we would advocate early usage of DMARDs in every RA patient to reduce joint erosions and future disability.
  15. Chong HC, Chee SS, Goh EM, Chow SK, Yeap SS
    Clin Rheumatol, 2007 Feb;26(2):182-5.
    PMID: 16565892 DOI: 10.1007/s10067-006-0258-6
    The primary objective of this study was to determine the relationship between dietary calcium intake and bone mineral density (BMD) in premenopausal women with systemic lupus erythematosus (SLE) on corticosteroids (CS). The secondary aim was to identify other risk factors for osteoporosis in these patients. A cross-sectional sample of patients attending the SLE Clinic at a teaching hospital was recruited. BMD was measured using dual-energy X-ray absorptiometry. Daily dietary calcium intake was assessed using a structured validated food frequency questionnaire, in which patients were asked to estimate their food intake based on their recent 2-month dietary habits. Sixty subjects were recruited with a mean age of 33.70+/-8.46 years. The median duration of CS use was 5.5 years (range 0.08-24). The median cumulative dose of steroids was 17.21 g (range 0.16-91.37). The median daily dietary calcium intake was 483 mg (range 78-2101). There was no significant correlation between calcium intake and BMD, even after correcting for CS use. There were also no correlations between BMD and the duration of SLE, cumulative CS use, duration of CS use, smoking, alcohol intake, and SLE disease activity index score. Twenty-eight (46.7%) patients had normal BMD, 28 (46.7%) had osteopenia, and four (6.6%) had osteoporosis. Duration of SLE significantly correlated with cumulative CS dosage. In conclusion, 6.7% of these Asian premenopausal SLE women had osteoporosis and only 46.7% had normal BMD. Daily dietary calcium intake did not correlate with BMD.
    Study site: SLE clinic, University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia
  16. Soo MPK, Chow SK, Tan CT, Nadior N, Yeap SS, Hoh HB
    Lupus, 2000;9(7):511-4.
    PMID: 11035416 DOI: 10.1177/096120330000900706
    The aim of the study was to determine the spectrum of clinical ocular involvement in patients with inactive systemic lupus erythematosus (SLE) who have no ocular symptoms. Patients with a diagnosis of SLE based on the 1982 revised American College of Rheumatology criteria and with no ocular complaints were recruited from the SLE clinic. Clinical data regarding their systemic disease and disease activity were recorded and a full ophthalmic examination carried out. 52 patients of mixed ethnicity comprising of 75% Chinese, 19% Malays and 6% Indian patients were recruited. Of these, 51 (98%) were female with a mean age of 34+/-11 (range 16-74 y). 16 (31%) patients had dry eyes while corticosteroid induced glaucoma and cataract was detected in 1 (2%) and 7 (14%) patients, respectively. No patients were found to have sight-threatening ocular conditions such as cotton wool spots, vasculitis, optic neuropathy or uveitis. Patients with clinically inactive disease were found not to have sight-threatening ocular diseases that are known to be associated with SLE. Although they have no ocular complaints, nearly one-third of these patients have dry eyes. Ocular examination may be unnecessary when the disease is clinically inactive and in the absence of ocular symptoms.
    Study site: SLE clinic, University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia
  17. Ong SG, Cheng HM, Soon SC, Goh E, Chow SK, Yeap SS
    Clin Rheumatol, 2002 Sep;21(5):382-5.
    PMID: 12223986 DOI: 10.1007/s100670200102
    The aim of this study was to investigate the incidence of IgG anticardiolipin antibody (ACL) and IgG anti-beta(2) glycoprotein I antibody (anti-beta2GPI) positivity in patients with primary or secondary antiphospholipid syndrome (APS) and systemic lupus erythematosus (SLE), to assess the association between IgG ACL and anti-beta2GPI, and the relationship between the presence of ACL and anti-beta2GPI with the clinical manifestations of APS. IgG ACL and IgG anti-beta2GPI levels were measured in 51 SLE patients, 20 patients with SLE and APS (secondary APS) and 11 primary APS patients using commercially available ELISA kits. Relationships between laboratory data and clinical manifestations of the patients were examined. The incidence of IgG ACL positivity was significantly higher in primary (36.4%) and secondary (40%) APS than in SLE (13.7%) patients (P = 0.02). The incidence of IgG anti-beta2GPI positivity was significantly higher in primary (54.5%) and secondary (35%) APS than in SLE (7.8%) patients (P = 0.0006). Mean levels of IgG ACL and anti-beta2GPI were significantly higher in the primary and secondary APS than in the SLE patients (P = 0.002 for both). A significant relationship was found between IgG ACL and IgG anti-beta2GPI (P = 0.01, R(2) = 0.56). There was a significant correlation between the presence of IgG ACL and a history of thrombosis in the combined primary and secondary APS group, but not in SLE patients. In conclusion, in this study IgG ACL and IgG anti-beta2GPI are closely related and mean levels of IgG ACL and IgG anti-beta2GPI are higher in patients with either primary or secondary APS than in SLE patients.
    Study site: Rheumatology Clinic, University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia
  18. Mohd A, Goh EM, Chow SK, Looi LM, Yeap SS
    PMID: 12971563
    The diagnosis of patients with fever of unknown origin (FUO) is often problematic because the range of possible differential diagnoses is broad. We report on a case in which a patient presented with FUO and was subsequently found to have both a collagen vascular disease and an intercurrent infection. Treatment for the collagen vascular disease with corticosteroids exacerbated the intercurrent infection. The problems in the diagnosis and management of such cases are discussed.
  19. Chow SK, Yeap SS, Goh EML, Veerapen K, Lim KKT
    Med J Malaysia, 2002 Sep;57(3):283-91.
    PMID: 12440267
    This was a prospective survey using a standard questionnaire to determine the prevalence of use of oral traditional medicine and food supplements among patients with rheumatic diseases. Among the 141 patients surveyed, we found that 69% of the patients were consuming food supplements, 35% were using traditional medicine and 45% had used traditional medicine at some time or other. Females were more likely to use food supplements (P < 0017); especially among those with higher education (p < 0.036). There was no statistical difference between those who had ever consumed compared to those who never used traditional medicines. The Chinese were more likely than others to be using traditional medicine (p < 0.007). Vitamin C and B were the most commonly used food supplements. More than two thirds of the patients obtained their traditional medicine from non-medical personnel. More than half of them used 2 or more types of traditional medicine for more than two months. Spending on traditional medicine was noted to be modest with 73% spending less than one hundred ringgit a month for their traditional treatment. Doctors need to be aware of the possible interactions between these 'self-medications' and the conventionally prescribed medication.
Related Terms
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links