Displaying publications 141 - 160 of 218 in total

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  1. Ali AS, Hasan SS, Kow CS, Merchant HA
    Clin Nutr ESPEN, 2021 10;45:26-32.
    PMID: 34620326 DOI: 10.1016/j.clnesp.2021.08.019
    BACKGROUND: Lactoferrin (Lf) is one of the key immunomodulatory substances found naturally in various body fluids, such as saliva, tears, and breast milk, and forms a vital part of the innate defense against invading pathogens. Various studies have demonstrated antibacterial, antifungal, and antiviral properties of Lf and its protective role against respiratory tract infections (RTIs). The present meta-analysis aims to elucidate the association of Lf administration in reducing the risk of RTIs by systematically reviewing the data from randomized controlled trials (RCTs).

    METHODS: We systematically searched PubMed, Cochrane Library, Medline & CINAHL, Turning Research into Practice (TRIP), ProQuest Theses & Dissertations Databases, and China National Knowledge Infrastructure (CNKI) from inception till March 15, 2021. The primary outcome measure was a reduction in respiratory illness; decrease in frequency, symptoms, and duration. Random-effects model was used to estimate the odds ratio (OR) and 95% confidence interval (CI). We used Cochrane's RoB-2 to appraise the risk of bias of included RCTs.

    RESULTS: A total of nine RCTs were eligible for this review, of which six were included in the meta-analysis. Overall, two studies demonstrated a high risk of bias. The meta-analysis revealed a significantly reduced odds of developing respiratory infections with the use of Lf relative to the control (pooled odds ratio = 0.57; 95% confidence interval 0.44 to 0.74, n = 1,194), with sufficient evidence against the hypothesis of 'no significant difference' at the current sample size.

    CONCLUSIONS: The administration of Lf shows promising efficacy in reducing the risk of RTIs. Current evidence also favours Lf fortification of infant formula. Lf may also have a beneficial role in managing symptoms and recovery of patients suffering from RTIs and may have potential for use as an adjunct in COVID-19, however this warrants further evidence from a large well-designed RCT.

  2. Hasan SS, Ahmed SI, Bukhari NI, Loon WC
    Complement Ther Clin Pract, 2009 Aug;15(3):152-7.
    PMID: 19595416 DOI: 10.1016/j.ctcp.2009.02.003
    OBJECTIVE: The primary objective of this study was to evaluate the use of complementary and alternative medicine among patients with chronic diseases at outpatient clinics. Another aim was to identify demographic and socio-economic factors that are associated with CAM use.
    RESEARCH DESIGN AND METHODS: Face-to-face interviews of conveniently selected patients with chronic diseases were conducted in outpatient clinics of a general hospital. A validated data collection form was used to gather the information regarding pattern, perception, reasons, and perceived effect of CAM on the disease state. The other relevant information including demographics, diagnosis, indication, and treatment were collected from the patients' medical records.
    RESULTS: Out of 321 patients interviewed in this study, 205 patients were using some form of CAM, and thus the utilisation rate was 63.9%. A significant number of patients (35.5%) were using CAM for diabetes mellitus. Thirteen types of CAM were identified in the study with the most common being vitamins supplements (48.2%), herbal medicines (26.4%), ginseng (4.7%) and traditional Chinese medicine (4.0%). The patients with higher education level, higher income, and aged more than 50 years were independently associated with CAM use. Majority of the patients (77.6%) reported that their condition had improved by using CAM.
    CONCLUSION: The present study confirms the high frequency of CAM use among patients with chronic diseases in a Malaysian public hospital. The popularity of CAM indicated the patients' preference towards holistic approach to health care.
    Study site: Outpatient clinics, Hospital Tuanku Jaafar, Seremban, Negeri Sembilan, Malaysia
  3. Kow CS, Merchant HA, Mustafa ZU, Hasan SS
    Pharmacol Rep, 2021 Oct;73(5):1473-1479.
    PMID: 33779964 DOI: 10.1007/s43440-021-00245-z
    OBJECTIVE: The effect of ivermectin on mortality in patients with novel coronavirus disease 2019 (COVID-19) has been investigated in many studies. We aimed to perform a meta-analysis of randomized controlled trials to investigate the overall effect of ivermectin on the risk of mortality in patients with COVID-19.

    METHODS: We systematically searched PubMed, Cochrane Central Register of Controlled Trials, Google Scholar, and preprint repository databases (up to February 28, 2021). Random-effects and inverse variance heterogeneity meta-analysis were used to pool the odds ratio of individual trials. The risk of bias was appraised using Version 2 of the Cochrane risk-of-bias tool for randomized trials.

    RESULTS: Six randomized controlled trials were included in this analysis with a total of 658 patients who were randomized to receive ivermectin and 597 patients randomized in the control group who did not receive ivermectin. Of six trials, four had an overall high risk of bias. The estimated effect of ivermectin indicated mortality benefits (pooled odds ratio = 0.21; 95% confidence interval 0.11-0.42, n = 1255), with some evidence against the hypothesis of 'no significant difference' at the current sample size.

    CONCLUSION: We observed a preliminary beneficial effect on mortality associated with ivermectin use in patients with COVID-19 that warrants further clinical evidence in appropriately designed large-scale randomized controlled trials.

  4. Kow CS, Javed A, Ramachandram D, Hasan SS
    PMID: 34719324 DOI: 10.1080/14787210.2022.2000861
    BACKGROUND: Several randomized trials have evaluated the effects of sofosbuvir-based direct-acting antivirals on the clinical outcomes in patients with COVID-19.

    METHODS: A systematic literature search with no language restrictions was performed on electronic databases and preprint repositories to identify eligible randomized trials published up to 8 July 2021. A random-effects model was used to estimate the pooled odds ratio (OR) for outcomes of interest with the use of sofosbuvir combined with direct-acting antiviral agents relative to the nonuse of sofosbuvir-based direct-acting antiviral agents at 95% confidence intervals (CI).

    RESULTS: The meta-analysis of 11 trials (n = 2,161) revealed statistically significant reduction in the odds of mortality (pooled odds ratio = 0.59; 95% confidence interval 0.36 to 0.99) but no statistically significant difference in the odds of development of composite endpoint of severe illness (pooled odds ratio = 0.79; 95% confidence interval 0.43 to 1.44) with the administration of sofosbuvir-based direct-acting antiviral agents among patients with COVID-19, relative to non-administration of sofosbuvir-based direct-acting antiviral agents.Subgroup analysis with seven trials involving sofosbuvir-daclatasvir revealed no significant mortality benefit (pooled odds ratio = 0.77; 95% confidence interval 0.48 to 1.22).

    CONCLUSION: Sofosbuvir-based direct-acting antiviral agents have no protective effects against the development of severe illness in patients with COVID-19 with the current dosing regimen. Whether sofosbuvir-based direct-acting antiviral agents could offer mortality benefits would require further investigations.

  5. Thiruchelvam K, Byles J, Hasan SS, Egan N, Kairuz T
    Int J Clin Pharm, 2021 Dec;43(6):1619-1629.
    PMID: 34091857 DOI: 10.1007/s11096-021-01294-3
    Background Polypharmacy is an important consideration for the provision of Residential Medication Management Reviews (RMMRs) among older women given their enhanced risk of medication-related problems and admission to residential aged care (RAC). Objectives To determine the prevalence of the use of RMMRs among older women in RAC, and the association between RMMRs and polypharmacy, medications, and costs. Setting Older Australian women aged 79-84 years in 2005 who had at least one Medicare Benefits Schedule and Pharmaceutical Benefits Scheme record, received a service in aged care, and consented to data linkage. Methods Generalised estimating equations were used to determine the association between polypharmacy and RMMRs, while adjusting for confounding variables. Main outcome measures Prevalence of the use of RMMRs among older women in RAC, association between RMMRs and polypharmacy, medications, and costs. Results Most participants did not have continuous polypharmacy and did not receive RMMRs from 2005 [451 (67.4%)] until 2017 [666 (66.6%)]. Participants with continuous polypharmacy were 17% more likely to receive a RMMR (risk ratio 1.17; 95% confidence interval 1.11, 1.25). Participants in their final year of life and residing in outer regional/remote/very remote Australia were less likely to receive RMMRs. Out-of-pocket medication costs increased over time, and alendronate and aspirin were common contributors to polypharmacy among participants who received RMMRs. Conclusion Polypharmacy was associated with receiving RMMRs and around two-thirds of women who are entitled to a RMMR never received one. There is potential to improve the use of medicines by increasing awareness of the service among eligible individuals, their carers and health care professionals.
  6. Thiruchelvam K, Byles J, Hasan SS, Egan N, Kairuz T
    Int J Pharm Pract, 2021 Dec 04;29(6):548-555.
    PMID: 34463322 DOI: 10.1093/ijpp/riab054
    OBJECTIVES: Home Medicines Reviews (HMRs) can optimize medications for frail older adults. This study aimed to determine the use of HMRs according to frailty status and the association between frailty and use of HMRs.

    METHODS: The study included 9139 female participants enrolled in the Australian Longitudinal Study on Women's Health from 2003 (aged 77-82 years) to 2017 (aged 91-96 years). Generalized estimating equations (GEEs) using log-binomial regressions were used to determine associations using repeated measures on individuals over time.

    KEY FINDINGS: The majority of participants in the study remained non-frail and did not receive HMRs from 2003 [7116 (77.86%)] to 2017 [1240 (71.31%)]. The use of HMRs was low in both groups with 33 (1.68%; 95% CI, 1.16 to 2.36) frail and 64 (0.89%; 95% CI, 0.69 to 1.14) non-frail participants receiving HMRs in 2003; by 2017, 19 (4.19%; 95% CI, 2.54 to 6.46) frail and 45 (3.50%; 95% CI, 2.57 to 4.66) non-frail participants received HMRs. Frailty was not associated with receiving a HMR (RR 1.06; 95% CI, 0.95 to 1.20), although for every 1-year increase, participants were 10% more likely to receive a HMR (RR 1.10; 95% CI, 1.09 to 1.11). Participants with continuous polypharmacy, ≥4 chronic diseases, >4 general practitioner visits and Department of Veterans Affairs coverage were more likely to receive a HMR.

    CONCLUSIONS: Despite the proven value of HMRs for frail older people, HMRs were not used for most frail and non-frail community-dwelling women in this study. Reasons for low use of the service should be explored, with interventions to raise awareness of the benefits of the service.

  7. Kow CSC, Ramachandram DS, Hasan SS
    Inflammopharmacology, 2022 Jan 31.
    PMID: 35099680 DOI: 10.1007/s10787-021-00915-7
    Meta-analyses were utilized to determine the overall effectiveness of BNT162b2 mRNA vaccine (Pfizer vaccine) against COVID-19 caused by Delta variant from large real-world studies. A systematic literature search with no language restriction was performed in electronic databases to identify eligible observational studies that reported the effectiveness of the BNT162b2 mRNA vaccine to prevent reverse transcription-polymerase chain reaction (RT-PCR) confirmed COVID-19 caused by Delta variant of SARS-CoV-2 (B.1.617.2). Random-effects meta-analysis model was used to estimate the pooled odds ratio (OR) at a 95% confidence interval, and the vaccine effectiveness was indicated as (pooled OR - 1)/OR. Seven studies were included for this meta-analysis. The meta-analysis revealed that the administration of BNT162b2 mRNA vaccine protected against RT-PCR confirmed COVID-19 caused by Delta variant ≥ 21 days after the first dose, with vaccine effectiveness of 55% (95% confidence interval 46-63%), as well as ≥ 14 days after the second dose, with vaccine effectiveness of 81% (95% confidence interval 69-88%). In conclusion, the BNT162b2 mRNA vaccine offers a substantial protection rate against RT-PCR confirmed COVID-19 caused by the Delta variant upon full vaccination, albeit with slightly reduced effectiveness relative to other strains of SARS-CoV-2.
  8. Thiruchelvam K, Hasan SS, Wong PS, Kairuz T
    J Am Med Dir Assoc, 2017 01;18(1):87.e1-87.e14.
    PMID: 27890352 DOI: 10.1016/j.jamda.2016.10.004
    BACKGROUND: Aging is often associated with various underlying comorbidities that warrant the use of multiple medications. Various interventions, including medication reviews, to optimize pharmacotherapy in older people residing in aged care facilities have been described and evaluated. Previous systematic reviews support the positive impact of various medication-related interventions but are not conclusive because of several factors.

    OBJECTIVES: The current study aimed to assess the impact of medication reviews in aged care facilities, with additional focus on the types of medication reviews, using randomized controlled trials (RCTs) and observational studies.

    METHODS: A systematic searching of English articles that examined the medication reviews conducted in aged care facilities was performed using the following databases: PubMed, CINAHL, IPA, TRiP, and the Cochrane Library, with the last update in December 2015. Extraction of articles and quality assessment of included articles were performed independently by 2 authors. Data on interventions and outcomes were extracted from the included studies. The SIGN checklist for observational studies and the Cochrane Collaboration's tool for assessing risk of bias in RCTs were applied. Outcomes assessed were related to medications, reviews, and adverse events.

    RESULTS: Because of the heterogeneity of the measurements, it was deemed inappropriate to conduct a meta-analysis and thus a narrative approach was employed. Twenty-two studies (10 observational studies and 12 controlled trials) were included from 1141 evaluated references. Of the 12 trials, 8 studies reported findings of pharmacist-led medication reviews and 4 reported findings of multidisciplinary team-based reviews. The medication reviews performed in the included trials were prescription reviews (n = 8) and clinical medication reviews (n = 4). In the case of the observational studies, the majority of the studies (8/12 studies) reported findings of pharmacist-led medication reviews, and only 2 studies reported findings of multidisciplinary team-based reviews. Similarly, 6 studies employed prescription reviews, whereas 4 studies employed clinical medication reviews. The majority of the recommendations put forward by the pharmacist or a multidisciplinary team were accepted by physicians. The number of prescribed medications, inappropriate medications, and adverse outcomes (eg, number of deaths, frequency of hospitalizations) were reduced in the intervention group.

    CONCLUSION: Medication reviews conducted by pharmacists, either working independently or with other health care professionals, appear to improve the quality of medication use in aged care settings. However, robust conclusions cannot be drawn because of significant heterogeneity in measurements and potential risk for biases.

  9. Kow CS, Burud IAS, Hasan SS
    Pancreas, 2022 Aug 01;51(7):752-755.
    PMID: 36395399 DOI: 10.1097/MPA.0000000000002112
    OBJECTIVES: We aimed to perform a systematic review and meta-analysis of randomized controlled trials to summarize the overall association between the choice of fluid (lactated Ringer's [LR] or normal saline [NS]) and clinical outcomes in patients with acute pancreatitis.

    METHODS: A systematic literature search was performed in electronic databases to identify eligible randomized controlled trials. Meta-analyses with the random-effects and IVhet models were used to estimate the pooled odds ratio (OR) for outcomes of interest with the administration of LR relative to NS, at 95% confidence intervals (CIs).

    RESULTS: There was a significant reduction in the odds of intensive care unit admission and development of local complications, respectively, with the administration of LR among hospitalized patients with acute pancreatitis relative to administration of NS (pooled ORs, 0.33 [95% CI, 0.13-0.81] and 0.43 [95% CI, 0.21-0.89], respectively).

    CONCLUSIONS: Our findings are able to assist clinicians in the navigation of the proper choice of fluid in patients with acute pancreatitis.

  10. Hasan SS, Bahari MB, Babar ZU, Ganesan V
    Singapore Med J, 2010 Jan;51(1):21-7.
    PMID: 20200771
    INTRODUCTION: The primary purpose of this study was to evaluate the utilisation pattern and seizure outcome of newer and older antiepileptic drugs in paediatric clinical practice in a Malaysian hospital setting.
    METHODS: Over a two-month period, all paediatric epilepsy patients from Penang General Hospital, Malaysia who were diagnosed according to the classification of the International League Against Epilepsy were followed up prospectively, and the patients' information was gathered with the help of a validated data collection form. This included demographic characteristics, monotherapy and polytherapy of antiepileptic drugs, as well as the number of seizures experienced.
    RESULTS: Partial seizures, including complex and simple partial seizures (47.2 percent), followed by generalised seizures (40 percent), were the most common seizure types found in this study. An average of 1.51 antiepileptic drugs per patient was prescribed, with 54.3 percent of the patients on monotherapy and 45.7 percent on polytherapy. Overall, sodium valproate was the most frequently prescribed antiepileptic drug (36.8 percent), followed by carbamazepine (30.2 percent) and lamotrigine (10.4 percent). Carbamazepine was the most frequently prescribed monotherapy (28.6 percent), followed by sodium valproate (17.1 percent). The newer antiepileptic drugs were also found to be used as monotherapy in 7.2 percent of the cases. Moreover, a significant difference was observed between the older and newer antiepileptic drugs in terms of the number of seizures experienced (p=0.027). Most (75 percent) of the seizure-free patients were on carbamazepine monotherapy.
    CONCLUSION: Monotherapy was the most frequently used remedy in all forms of epilepsy. Overall, sodium valproate was the most commonly used drug, while carbamazepine was found to be more frequently used as monotherapy. There was a significant difference found between the older and newer antiepileptic drugs, with 87.5 percent of seizure-free patients on older antiepileptic drugs.

    Study site: all paediatric epilepsy patients from Penang General Hospital
  11. Javed B, Javed A, Kow CS, Hasan SS
    Expert Rev Neurother, 2023 Jun;23(6):501-514.
    PMID: 37267149 DOI: 10.1080/14737175.2023.2214316
    INTRODUCTION: Alzheimer's disease (AD) is one of the most common neurodegenerative disorders among the older population. Sleep disruption and circadian rhythm disorders often develop in AD patients, and many experience sleeping difficulties requiring pharmacological and non-pharmacological interventions.

    AREAS COVERED: This review appraised the evidence from clinical studies on various pharmacological and non-pharmacological therapies for sleep disturbances in AD patients and proposed an algorithm to manage sleep disturbances in this population of patients.

    EXPERT OPINION: Non-pharmacological interventions are generally preferred as the first-line approach to improve sleep-related symptoms in AD due to their favorable safety profile. However, when non-pharmacological interventions alone are insufficient, a range of pharmacological agents can be considered. Trazodone and melatonin are commonly used as adjunctive therapies, while Z-drugs including zopiclone and zolpidem are specifically employed to treat insomnia in patients with late-onset AD. Furthermore, a newer class of agents known as dual orexin receptor antagonists has emerged and gained approval for improving sleep onset and maintenance in AD patients.

  12. Kumar S, Wong PS, Hasan SS, Kairuz T
    PLoS One, 2019;14(10):e0224122.
    PMID: 31622445 DOI: 10.1371/journal.pone.0224122
    Poor sleep quality is prevalent among older adults and is compounded by frailty and polypharmacy. This descriptive, cross-sectional study examines the associations between sleep quality, inappropriate medication use and frailty. The study was conducted among 151 residents of 11 aged care homes in three states in Malaysia; convenience sampling was used. Subjective sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI), and Groningen Frailty Indicator (GFI) was used to assess frailty. Medication appropriateness was assessed using Drug burden Index (DBI), Potentially Inappropriate Medications (PIMs) and Potentially Inappropriate Prescriptions (PIPs). Most of the subjects (approximately 95%) reported poor sleep quality, as measured by a cut-off of global PSQI score of ≥ 5. With a second cut-off at 10, just over half (56%) reported moderately poor sleep quality followed by 39% who had very poor sleep quality. Most (90%) denied taking medication to improve their sleep during the previous month. There was no statistically significant association between medication inappropriateness (PIMs, PIPs, DBI) and global PSQI score. However, the average number of PIM was associated significantly with sleep efficiency (a measure of the actual 'sleep to total time spent in bed) (p = 0.037). The average number of PIP was associated with subjective sleep quality (p = 0.045) and the use of sleep medications (p = 0.001), and inversely associated with sleep disturbance (0.049). Furthermore, frailty correlated significantly with poor overall sleep quality (p = 0.032). Findings support the need for medication review to identify and reduce PIMs and optimise prescriptions to improve sleep quality and hence, related health outcomes among residents of aged care homes.
  13. Kow CS, Ramachandram DS, Hasan SS, Thiruchelvam K
    Inflammopharmacology, 2023 Dec;31(6):3339-3355.
    PMID: 37804462 DOI: 10.1007/s10787-023-01349-z
    BACKGROUND: The use of anti-CD20 monoclonal antibodies, such as rituximab and ocrelizumab, has emerged as a matter of concern, in patients with coronavirus disease 2019 (COVID-19).

    OBJECTIVE: We aimed to summarize the overall evidence on the pre-admission/pre-diagnosis use of anti-CD20 among patients with COVID-19 with regards to mortality and severe illness outcomes.

    METHODS: A systematic literature search with no language restriction was performed in electronic databases, including PubMed, Google Scholar, Scopus, and preprint servers (medRxiv, Research Square, SSRN), to identify eligible studies published up to June 13, 2023. The outcomes of interest were the development of severe illness and all-cause mortality. A random-effects model was used to estimate the pooled odds ratio for outcomes of interest using anti-CD20 monoclonal antibodies relative to non-use of anti-CD20 monoclonal antibodies, at 95% confidence intervals.

    RESULTS: Our systematic review and meta-analysis revealed significantly increased odds for development of severe illness (pooled odds ratio 2.95; 95% confidence interval 2.30, 3.78; n = 534,349) and significantly increased odds for mortality (pooled odds ratio 2.14; 95% confidence interval 1.37, 3.35; n = 333,462) with the use of anti-CD20 monoclonal antibodies, relative to non-use of anti-CD20 monoclonal antibodies, in patients with COVID-19.

    CONCLUSION: Healthcare practitioners should exercise caution when prescribing these anti-CD20 monoclonal antibodies during the COVID-19 pandemic to patients who are indicated for these agents, particularly those with underlying conditions like multiple sclerosis or rheumatoid arthritis.

  14. Hasan SS, Kow CS, Zaidi STR
    Res Social Adm Pharm, 2021 Feb;17(2):456-459.
    PMID: 32387229 DOI: 10.1016/j.sapharm.2020.04.033
    Community pharmacists are one of the most accessible healthcare professionals and are often served as the first point of contact when it comes to minor ailments and health advice. As such, community pharmacists can play a vital role in a country's response to various preventative and public health measures amid the COVID-19 pandemic. Given the essential nature of community pharmacy as a health service, community pharmacies are unlikely to shut down in any foreseeable lockdown scenario. It is therefore important to assess the preventative measure directives for community pharmacies that are in place to safeguard community pharmacy personnel from SARS-CoV-2 in the various parts of the world. Upon reviewing the recommendations of 15 selected countries across five continents (Asia, Europe, Oceania, North America, and Africa) on social distancing and the use of personal protective equipment (PPE) in community pharmacies, we found inconsistencies in the recommended social distance to be practiced within the community pharmacies. There were also varying recommendations on the use of PPE by the pharmacy personnel. Despite the differences in the recommendations, maintaining recommended social distance and the wearing of appropriate PPE is of utmost importance for healthcare workers, including community pharmacy personnel dealing with day-to-day patient care activities, though full PPE should be worn when dealing with suspected COVID-19 patients.
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