Displaying publications 161 - 180 of 218 in total

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  1. Kow CS, Ramachandram DS, Hasan SS, Thiruchelvam K
    Parkinsonism Relat Disord, 2024 Jul;124:106974.
    PMID: 38670906 DOI: 10.1016/j.parkreldis.2024.106974
    This article explores the potential link between COVID-19 and parkinsonism, synthesizing existing evidence and recent research findings. It highlights limitations in current understanding, emphasizes the direct impact of the virus on dopamine neurons, and calls for continued research to elucidate long-term neurological implications and optimize patient care strategies.
  2. Kow CS, Ramachandram DS, Hasan SS, Thiruchelvam K
    Int J Pharm Pract, 2024 May 07;32(3):259-264.
    PMID: 38438314 DOI: 10.1093/ijpp/riae003
    OBJECTIVES: To determine risks associated with uricosurics in COVID-19 patients.

    METHODS: A systematic review and meta-analysis was conducted by systematically searching electronic databases.

    KEY FINDINGS: The pooled analysis of the included trials revealed that the use of uricosurics was not associated with the risk of mortality (pooled odds ratio [OR] = 1.03, 95% confidence interval [CI]: 0.94-1.12). However, there is a potential mortality benefit associated with the use of ascorbic acid (pooled OR = 0.78, 95% CI: 0.65-0.94).

    CONCLUSIONS: The findings confirmed the safety of uricosurics in COVID-19 patients, despite their potential to cause uric acid excretion, which may possess antioxidant properties.

  3. Ramachandram DS, Kow CS, Hasan SS, Thiruchelvam K
    Health Sci Rep, 2024 Jul;7(7):e2239.
    PMID: 38983684 DOI: 10.1002/hsr2.2239
    BACKGROUND AND AIMS: We performed a meta-analysis of randomized controlled trials (RCTs) to summarize the overall effect of intravenous immunoglobulin (IVIG) on mortality outcomes among hospitalized coronavirus disease 2019 (COVID-19) patients.

    METHODS: We systematically searched electronic databases up to June 1, 2023. Pooled odds ratio (OR) of mortality with a 95% confidence interval (CI) was generated using a random-effects model. The risk of bias was appraised using the Cochrane risk-of-bias Version 2 tool for randomized trials.

    RESULTS: Nine RCTs were included: three RCTs had an overall low risk of bias, four RCTs had some concerns in the overall risk of bias, and two RCTs trials had an overall high risk of bias. The use of IVIG indicated a significant reduction in the odds of mortality (pooled OR = 0.69; 95% CI 0.50-0.96) relative to nonuse of IVIG. Subgroup analysis in patients with a severe course of COVID-19 revealed no significant reduction in the odds of mortality (pooled OR = 0.58; 95% CI 0.29-1.16).

    CONCLUSIONS: We suggest exercising caution when interpreting effectiveness of IVIG in reducing mortality among hospitalized patients with COVID-19. Our findings emphasize for larger trials with rigorous study designs to better understand the impact of IVIG, particularly in those with severe COVID-19.

  4. Kow CS, Ramachandram DS, Hasan SS, Thiruchelvam K
    Clin Infect Dis, 2024 Jul 19;79(1):274-275.
    PMID: 38059531 DOI: 10.1093/cid/ciad732
  5. Kow CS, Ramachandram DS, Hasan SS, Thiruchelvam K
    Am J Med, 2024 Apr;137(4):e81.
    PMID: 38604726 DOI: 10.1016/j.amjmed.2023.10.034
  6. Thiruchelvam K, Kow CS, Hadi MA, Hasan SS
    Expert Rev Anti Infect Ther, 2022 Feb;20(2):211-229.
    PMID: 34192469 DOI: 10.1080/14787210.2021.1949984
    OBJECTIVE: We systematically reviewed the evidence of published original research to determine the role of remdesivir in the management of patients with COVID-19 and a moderate-to-severe course of illness.

    METHODS: A systematic search of articles was conducted in scientific databases, with the latest update in May 2021. This paper systematically reviewed the clinical evidence available (randomized controlled trials, compassionate use studies, and case reports) on the use of remdesivir for patients with moderate or severe COVID-19.

    RESULTS: A total of eleven studies were included: four studies based on compassionate use of remdesivir, three randomized, double-blind, placebo-controlled, multicentre trials, three randomized, open-label, phase III trials, and one case report. Clinical improvement and mortality rates in patients who used remdesivir varied across studies.

    CONCLUSION: Given the current evidence, there is insufficient data to confidently recommend the use of remdesivir alone for the treatment of adult hospitalized patients with moderate-to-severe COVID-19. However, remdesivir may be considered along with an anti-inflammatory agent in patients with pneumonia, on oxygen support, provided there is close monitoring of clinical and laboratory parameters and adverse events.

  7. Kow CS, Zaidi STR, Hasan SS
    Am J Cardiovasc Drugs, 2020 Jun;20(3):217-221.
    PMID: 32281055 DOI: 10.1007/s40256-020-00406-0
    There is ongoing debate on the safety of renin-angiotensin system (RAS) inhibitors in COVID-19. Recently published studies highlight a potential relationship between cardiovascular disease (CVD) and COVID-19. This article aims to summarize the evidence on the use of RAS inhibitors in CVD patients with COVID-19, focusing on safety issues of the RAS inhibitors and their relationship with COVID-19.
  8. Thiruchelvam K, Byles J, Hasan SS, Egan N, Kairuz T
    Maturitas, 2021 Apr;146:18-25.
    PMID: 33722360 DOI: 10.1016/j.maturitas.2021.01.005
    OBJECTIVES: This study aimed to determine the prevalence of continuous polypharmacy and hyperpolypharmacy, determine medications that contribute to continuous polypharmacy, and examine the association between frailty and continuous polypharmacy.

    STUDY DESIGN: A prospective study using data from the Australian Longitudinal Study on Women's Health. Women aged 77-82 years in 2003, and 91-96 years in 2017 were analysed, linking the Pharmaceutical Benefits Scheme data to participants' survey data.

    MAIN OUTCOME MEASURES: The association between frailty and continuous polypharmacy was determined using generalised estimating equations for log binomial regressions, controlling for confounding variables. Descriptive statistics were used to determine the proportion of women with polypharmacy, and medications that contributed to polypharmacy.

    RESULTS: The proportion of women with continuous polypharmacy increased over time as they aged. Among participants who were frail (n = 833) in 2017, 35.9 % had continuous polypharmacy and 1.32 % had hyperpolypharmacy. Among those who were non-frail (n = 1966), 28.2 % had continuous polypharmacy, and 1.42 % had hyperpolypharmacy. Analgesics (e.g. paracetamol) and cardiovascular medications (e.g. furosemide and statins) commonly contributed to continuous polypharmacy among frail and non-frail women. Accounting for time and other characteristics, frail women had an 8% increased risk of continuous polypharmacy (RR 1.08; 95 % CI 1.05, 1.11) compared to non-frail women.

    CONCLUSIONS: Combined, polypharmacy and frailty are key clinical and public health challenges. Given that one-third of women had continuous polypharmacy, monitoring and review of medication use among older women are important, and particularly among women who are frail.

  9. Thiruchelvam K, Byles J, Hasan SS, Kairuz T
    Res Social Adm Pharm, 2022 Apr;18(4):2700-2705.
    PMID: 34326004 DOI: 10.1016/j.sapharm.2021.07.019
    Medication reviews are effective in improving the quality of medication use among older people. However, they are conducted to various standards resulting in a wide range of outcomes which limit generalisability of findings arising from research studies. There also appear to be funding and time constraints, lack of data storage for quality improvement purposes, and non-standardised reporting of outcomes, especially clinically relevant outcomes. Furthermore, the coronavirus disease-19 (COVID-19) pandemic has restricted many face-to-face activities, including medication reviews. This article introduces a technology-enabled approach to medication reviews that may overcome some limitations with current medication review processes, and also make it possible to conduct medication reviews during the COVID-19 pandemic by providing an alternate platform. The possible advantages of this technology-enabled approach, legislative considerations and possible implementation in practice are discussed.
  10. Kow CS, Ramachandram DS, Hasan SS, Thiruchelvam K
    Inflammopharmacology, 2024 Nov 27.
    PMID: 39601986 DOI: 10.1007/s10787-024-01601-0
    The use of nonsteroidal anti-inflammatory drugs (NSAIDs), particularly diclofenac, during the COVID-19 pandemic has raised concerns due to its potential to worsen disease progression. This commentary evaluates key risks associated with diclofenac and highlights the critical role of pharmacists in mitigating adverse outcomes through careful medication management and patient education. Diclofenac poses unique risks due to its ability to generate reactive oxygen species (ROS), leading to oxidative stress and mitochondrial dysfunction. In COVID-19, a disease characterized by hyperinflammation, these effects may exacerbate systemic inflammation, contributing to severe outcomes. Moreover, diclofenac's known association with increased cardiovascular risks, such as myocardial infarction and stroke, is especially concerning in patients with COVID-19, who are predisposed to thrombotic complications. The drug's hepatotoxic potential adds another layer of concern, particularly in patients with pre-existing liver dysfunction or those at higher risk due to COVID-19-related liver involvement. Pharmacists play a pivotal role in addressing these risks by conducting thorough medication reviews and assessing patient-specific risk factors. They can guide clinicians and patients toward safer alternatives, such as ibuprofen or naproxen, which demonstrate a lower oxidative and cardiovascular burden. Patient education is equally critical; pharmacists should counsel individuals on potential adverse effects of diclofenac, such as cardiovascular symptoms, renal dysfunction, and liver complications, while advising on lifestyle modifications and adjunctive therapies to reduce NSAID dependence. Additionally, pharmacists contribute to pharmacovigilance by monitoring patients for adverse drug reactions and reporting safety concerns to improve NSAID usage guidelines during the pandemic. By adopting a personalized approach to NSAID therapy, pharmacists can minimize risks and enhance patient safety, ultimately improving outcomes in the management of COVID-19 and other inflammatory conditions. This underscores their indispensable role in optimizing care during complex clinical scenarios.
  11. Hasan SS, Thiruchelvam K, Ahmed SI, Clavarino AM, Mamun AA, Kairuz T
    Diabetes Metab Syndr, 2013;7(4):191-7.
    PMID: 24290082 DOI: 10.1016/j.dsx.2013.10.023
    AIMS: The aim of this study was to investigate the association between pregnancy complications, mental health-related problems, and type 2 diabetes mellitus (T2DM) in Malaysian women.
    MATERIALS AND METHODS: A case-control study of women with T2DM (n=160) matched by age range to controls without T2DM (n=160). Data were collected in the Negeri Sembilan and PutraJaya regions in Malaysia, from two hospital outpatient clinics, PutraJaya Hospital and Tuanku Jaa'far Hospital Seremban, and one health clinic at Seremban. Validated, interviewer-administered questionnaires were used to obtain the data. The unadjusted and adjusted estimates were calculated using the Mantel-Haenszel method.
    RESULTS: Neither depression (RR 0.74, 95% CI: 0.39-1.41) nor anxiety (RR 1.00, 95% CI: 0.53-1.88) symptoms increased the risk of T2DM significantly. However, gestational diabetes (RR 1.35, 95% CI: 1.02-1.79), and ≥3 pregnancies (RR 1.39, 95% CI: 1.08-1.79) were significant risk factors for the development of T2DM. T2DM was not a significant risk factor for either depression (RR 1.26, 95% CI: 0.91-1.74) or anxiety symptoms (RR 1.13, 95% CI: 0.59-2.19).
    CONCLUSION: In this study, T2DM is not a significant risk factor for depression and anxiety; similarly, neither are depression and anxiety significant risk factors for T2DM. Although prevalence of depression and anxiety is not alarming, the findings reported here should alert clinicians to screen and treat anxiety and depression in people with diabetes and also note the importance of monitoring women with complications in pregnancy for risk of later T2DM.

    Study site: two hospital outpatient clinics, PutraJaya Hospital and Tuanku Jaa'far Hospital Seremban, and one health clinic at Seremban, Negeri Sembilan, Malaysia
  12. Hasan SS, Shamala R, Syed IA, Basariah N, Chong DW, Mei TK, et al.
    J Pharm Pract, 2011 Oct;24(5):485-93.
    PMID: 21844213 DOI: 10.1177/0897190011415684
    OBJECTIVES: To assess the anticoagulation knowledge and international normalized ratio (INR) control among patients on warfarin.
    METHODS: A cross-sectional study with 156 randomly sampled patients from physician- (non-medication therapy adherence clinic [non-MTAC]) and pharmacist (MTAC)-run anticoagulation clinics using a validated interviewer-administered questionnaire. Patients' INR readings from 2008 to 2010 were recorded.
    RESULTS: Patients on warfarin scored an average of 66.5% ± 36.0% for their knowledge on how warfarin works, 42.9% ± 44.9% for interaction between warfarin and alcohol, and 49.2% ± 21.1% for adverse effects. No significant differences were found between MTAC and non-MTAC patients on their knowledge. There was a negative correlation between patients' knowledge and age (P = .001, r (s) = -.293) and a positive correlation between patients' knowledge and education level (P = .001, r (s) = .365). MTAC patients were found to have better INR control than non-MTAC when compared for mean percentage days in range (63.4% ± 18.9% vs 52.5% ± 18.2%; P = .006) and mean percentage visits in range (58.8% ± 17.9% vs 46.8% ± 18.6%; P = .001).
    CONCLUSIONS: MTAC patients were found to have better INR control compared to non-MTAC patients. A joint cooperation between physicians, pharmacists, and nurses should exist to achieve desired therapeutic outcomes.

    Study site: warfarin patients
    attending the anticoagulation clinics
  13. Hasan SS, See CK, Choong CL, Ahmed SI, Ahmadi K, Anwar M
    J Altern Complement Med, 2010 Nov;16(11):1171-6.
    PMID: 20973734 DOI: 10.1089/acm.2009.0657
    OBJECTIVES: The primary objective of this study was to evaluate the pattern of use, reasons for use, and perceived effect of complementary and alternative medicine (CAM), accompanied by identification and comparison of the factors that are potentially associated with CAM use.
    DESIGN: This cross-sectional study was carried out in 325 randomly sampled patients with human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS), at HIV/AIDS referral clinics in the Hospital Sungai Buloh, Malaysia. Simple random sampling was used, where randomization was done using patients' medical record numbers.
    SUBJECTS AND METHODS: Semistructured face-to-face interviews were conducted using 38 questions pertaining to type, pattern, perceived efficacy, adverse effects, and influential factors associated with CAM use. In addition, CD4 count and viral load readings were recorded.
    RESULTS: Of 325 randomly sampled patients with HIV/AIDS, 254 of them were using some forms of CAM, resulting in a utilization rate of 78.2%. Vitamins and supplements (52.6%), herbal products (33.8%), and massage (16.6%) were the top three most frequently used CAM modalities. Sociodemographic factors including education level (p = 0.021, r(s) = 0.148), monthly income (p = 0.001, r(s) = 0.260), and family history of CAM use (p = 0.001, r(s) = 0.231) were significantly associated and positively correlated with CAM use. However, the majority of these patients (68%) did not disclose CAM use to health care professionals. About half of those who rated their health as good or very good perceived it as a result of CAM use.
    CONCLUSIONS: This study confirmed the range of 30%-100% CAM use among individuals infected with HIV/AIDS. Although, on the one hand some types of CAM reduced viral load and enhanced the immune system, on the other hand some forms of CAM produced a detrimental effect on the virological suppression, opening this platform to more research and investigation in order to optimize the use of CAM among patients with HIV/AIDS.
    Study site: HIV/AIDS clinic, Hospital Sungai Buloh, Selangor, Malaysia
  14. Hasan SS, Teh KM, Ahmed SI, Chong DW, Ong HC, Naina B
    Public Health, 2015 Jul;129(7):954-62.
    PMID: 26138018 DOI: 10.1016/j.puhe.2015.05.014
    OBJECTIVES: To investigate association between quality of life (QoL) and International Normalized Ratio (INR) control, with the secondary aim of assessing QoL using generic and anticoagulation-specific, the Short Form Health Survey (SF-12) and the Duke Anticoagulation Satisfaction Scale (DASS).
    STUDY DESIGN: This study assessed anticoagulation related QoL at three time intervals in two groups of patients on long-term warfarin therapy.
    METHODS: Data of 326 randomly sampled patients (163 patients each in DASS and SF-12 groups) who had been on warfarin therapy for at least one year at anticoagulation clinics were analysed. QoL was assessed at three time intervals: at the start, six months and one year of warfarin therapy. Indications and target INR ranges and subjects INR values were recorded. Time in Therapeutic Range (TTR) was estimated for four subject subgroups, based on target ranges of INR for clustered indications.
    RESULTS: Of the total, 43% of the subjects were aged between 50 and 64 years, and 51% were female. DASS assessed subjects older than 35 years perceived significant decrease in overall mean scores of anticoagulation related QoL, whilst all SF-12 assessed subjects perceived an increase in QoL. The mean percentage days in range for all INR target range subgroups did not exceed more than 60% but there was only a weak correlation (Rs = 0.104, P > 0.05) between INR control and overall QoL.
    CONCLUSION: Malaysian urban outpatients on warfarin treatment longer than one year report a significant overall decrease in QoL, as measured using a validated condition-specific instrument. These patients appeared to adapt well to lifestyle limitations imposed by long-term anticoagulation.
    KEYWORDS: Anticoagulation therapy; International Normalized Ratio; Quality of life

    Study site: anticoagulation clinics at a
    suburban tertiary Ministry of Health hospital in Peninsular
    Malaysia
  15. Hasan SS, Kow CS, Verma RK, Ahmed SI, Mittal P, Chong DWK
    Medicine (Baltimore), 2017 Sep;96(35):e7929.
    PMID: 28858118 DOI: 10.1097/MD.0000000000007929
    Aging is significantly associated with the development of comorbid chronic conditions. These conditions indicate the use of multiple medications, and are often warranted by clinical guidelines. The aim of the present study was to evaluate medication appropriateness and frailty among Malaysian aged care home residents with chronic disease. The participants were 202 elderly (≥65 years) individuals, a cross-sectional sample from 17 aged care homes. After ethics approval, each participant was interviewed to collect data on sociodemographics, frailty status (Groningen Frailty Indicator [GFI]), medication appropriateness (Medication Appropriateness Index (MAI), the 2015 Beers' criteria (Potentially Inappropriate Medication [PIM]), and 2014 STOPP criteria (Potentially Inappropriate Prescribing [PIP]). The findings show that 81% (n = 164) and 42% (n = 85) were taking medications for cardiovascular and central nervous system-related conditions, respectively, and 34% were using medications for diabetes (n = 69). Each participant had a mean of 2.9 ± 1.5 chronic diseases, with an average GFI score of 6.4 ± 3.6. More than three-quarters of the participants (76%) were frail and polypharmacy was a factor in nearly half (48%); 41% and 36% were prescribed at least one PIP and PIM, respectively, whereas the average MAI score was 0.6 (range: 0-6). The number of medications used per participant correlated significantly and positively (0.21, P = .002) with GFI score. These findings reinforce the need for participants of aged care homes to receive periodic medication review aimed at minimizing morbidity associated with inappropriate pharmacotherapy.
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