Browsing by Author "Irene Looi"
Now showing 1 - 6 of 6
Results Per Page
Sort Options
- PublicationClinicians’ Publication Output: Self-Report Survey and Bibliometric Analysis(MDPI AG, 2020)
;Kurubaran Ganasegeran ;Alan Swee Hock Ch’ng ;Mohd Fadzly Amar JamilIrene LooiThe uncertainties around disease management and control measures have not only motivated clinicians to keep abreast of new evidence available in the scholarly literature, but also to be rigorously engaged in medical research, dissemination and knowledge transfer. We aimed to explore clinicians’ publication output from the Malaysian perspective. A self-report survey and bibliometric analysis was conducted. A total of 201/234 clinicians participated in the survey. Items consisted of demographics, researching habits, publication output and level of importance of journal selection metrics. Descriptive, bivariate and multivariate analyses were conducted. Bibliometric analysis using retrieved records from PubMed between 2009 and October 2019 was conducted and co-occurrence and co-authorship analyses were executed. Self-reported publication output was 16.9%. In the logistic regression model, publication output was significantly higher amongst consultants or clinical specialists (aOR = 2.5, 95% CI 1.1–10.0, p = 0.023); clinicians previously involved in research (aOR = 4.2, 95% CI 1.5–11.4, p = 0.004); clinicians who ever used reference citation managers (aOR = 3.2, 95% CI 1.3–7.7, p = 0.010); and journal publication speed (aOR = 2.9, 95% CI 1.2–7.1, p = 0.019). Most clinicians published original research papers (76.4%) in international journals (78.2%). Published papers were mostly observational studies, genetic, stroke and health services or systems research. In conclusion, socio-demographics, researching habits and journal selection metrics were significantly associated with self-reported publication output. Real outputs from bibliometrics were predominantly focused across five clusters. - PublicationImpact of adherence to key performance indicators on mortality among patients managed for ischemic stroke(2020)
;Mustapha Mohammed ;Hadzliana Zainal ;Balamurugan Tangiisuran ;Sabariah N. Harun ;Siti M. Ghadzi ;Irene Looi ;Norsima N. Sidek ;Keng L. YeeZariah A. AzizBackground: Stroke is a leading cause of death worldwide. The cases of acute ischemic stroke are on the increase in the Asia Pacific, particularly in Malaysia. Various health organizations have recommended guidelines for managing ischemic stroke, but adherence to key performance indicators (KPI) from the guidelines and impact on patient outcomes, particularly mortality, are rarely explored. Objective: This study aims to evaluate the impact of adherence to key performance indicators on mortality among patients managed for ischemic stroke. Methods: We included all first-ever ischemic stroke patients enrolled in the multiethnic Malaysian National Neurology Registry (NNeuR) - a prospective cohort study and followed-up for six months. Patients’ baseline clinical characteristics, risk factors, neurological findings, treatments, KPI and mortality outcome were evaluated. The KPI nonadherence (NAR) and relationship with mortality were evaluated. NAR>25% threshold was considered suboptimal. Results: A total of 579 first-ever ischemic stroke patients were included in the final analysis. The overall mortality was recorded as 23 (4.0%) in six months, with a median (interquartile) age of 65 (20) years. Majority of the patients (dead or alive) had partial anterior circulation infarct, PACI (43.5%; 34.0%) and total anterior circulation infarct, TACI (26.1%; 8.8%). In addition, DVT prophylaxis (82.8%), anticoagulant for atrial fibrillation (AF) patients (48.8%) and rehabilitation (26.2%) were considered suboptimal. NAR < 2 was significantly associated with a decrease in mortality (odds ratio 0.16; 0.02-0.12) compared to NAR>2. Survival analysis showed that death is more likely in patients with NAR>2 (p=0.05). Conclusions: KPI nonadherence was associated with mortality among ischemic stroke patients. The adherence to the KPI was sub-optimal, particularly in DVT prophylaxis, anticoagulant for AF patients and rehabilitation. These findings reflect the importance of continuous quality measurement and implementation of evidence recommendations in healthcare delivery to achieve optimal outcome among stroke patients. - PublicationPopulation’s health information-seeking behaviors and geographic variations of stroke in Malaysia: an ecological correlation and time series study(Nature Research, 2020)
;Kurubaran Ganasegeran ;Alan Swee Hock Ch’ng ;Zariah Abdul AzizIrene LooiStroke has emerged as a major public health concern in Malaysia. We aimed to determine the trends and temporal associations of real-time health information-seeking behaviors (HISB) and stroke incidences in Malaysia. We conducted a countrywide ecological correlation and time series study using novel internet multi-timeline data stream of 6,282 hit searches and conventional surveillance data of 14,396 stroke cases. We searched popular search terms related to stroke in Google Trends between January 2004 and March 2019. We explored trends by comparing average relative search volumes (RSVs) by month and weather through linear regression bootstrapping methods. Geographical variations between regions and states were determined through spatial analytics. Ecological correlation analysis between RSVs and stroke incidences was determined via Pearson’s correlations. Forecasted model was yielded through exponential smoothing. HISB showed both cyclical and seasonal patterns. Average RSV was significantly higher during Northeast Monsoon when compared to Southwest Monsoon (P < 0.001). “Red alerts” were found in specific regions and states. Significant correlations existed within stroke related queries and actual stroke cases. Forecasted model showed that as HISB continue to rise, stroke incidence may decrease or reach a plateau. The results have provided valuable insights for immediate public health policy interventions. - PublicationPredictors of Recurrent Ischemic Stroke in Obese Patients With Type 2 Diabetes Mellitus: A Population-based Study(Elsevier, 2020)
;Orwa Albitar ;Sabariah Noor Harun ;Nur Ezzati Abidin ;Balamurugan Tangiisuran ;Hadzliana Zainal ;Irene Looi ;Khairul Azmi Ibrahim ;Norsima Nazifah Sidek ;Keat Wei Loo ;Keng Yee Lee ;Zariah Abdul AzizSiti Maisharah Sheikh GhadziBackground: Diabetes and obesity are established risk factors for stroke. The current study aimed to assess risk factors of ischemic stroke recurrence in diabetic patients based on their body mass index (BMI). Methods: A total of 4005 diabetic patients who had a history of ischemic stroke were identified in a retrospective cross-sectional dataset from the Malaysian National Neurology Registry. Patients were classified based on BMI, and multivariable regression analysis was used to evaluate the association between risk factors and recurrent ischemic stroke. Results: Among obese patients, those with ischemic heart disease (aOR, 1.873; 95% CI, 1.131–3.103), received formal education (aOR, 2.236; 95% CI, 1.306–3.830), and received anti-diabetic medication (aOR, 1.788; 95% CI, 1.180–2.708) had a higher stroke recurrence risk, while receiving angiotensin receptors blockers (aOR, 0.261; 95% CI, 0.126–0.543) lowered the odds of recurrence. Overweight patients with hypertension (aOR, 1.011; 95% CI, 1.002–1.019) for over 10 years (aOR, 3.385; 95% CI, 1.088–10.532) and diabetes prior to the first stroke (aOR, 1.823; 95% CI, 1.020–3.259) as well as those received formal education (aOR, 2.403; 95% CI, 1.126–5.129) had higher odds of stroke recurrence, while receiving angiotensin-converting enzyme inhibitors (aOR, 0.244; 95% CI, 0.111–0.538) lowered the recurrence risk. Normal weight East Malaysians (aOR, 0.351; 95% CI, 0.164–0.750) receiving beta-blockers (aOR, 0.410; 95% CI, 0.174–0.966) had lower odds of stroke recurrence. Conclusions: Ischemic heart disease, hypertension, receiving anti-hypertensive agents, and educational level were independent predictors of recurrent stroke in obese patients. Managing the modifiable risk factors can decrease the odds of stroke recurrence. - PublicationRole of Fluid Biomarkers and PET Imaging in Early Diagnosis and its Clinical Implication in the Management of Alzheimer’s Disease(IOS Press, 2020)
;Shahul Hameed ;Jong-Ling Fuh ;Vorapun Senanarong ;Esther Gunaseli M. Ebenezer ;Irene Looi ;Jacqueline C. Dominguez ;Kyung Won Park ;Ananda Krishna KaranamOliver SimonClinical diagnosis of Alzheimer’s disease (AD) is based on symptoms; however, the challenge is to diagnose AD at the preclinical stage with the application of biomarkers and initiate early treatment (still not widely available). Currently, cerebrospinal fluid (CSF) amyloid- 42 (A 42) and tau are used in the clinical diagnosis of AD; nevertheless, blood biomarkers (A 42 and tau) are less predictive. Amyloid-positron emission tomography (PET) imaging is an advancement in technology that uses approved radioactive diagnostic agents (florbetapir, flutemetamol, or florbetaben) to estimate A neuritic plaque density in adults with cognitive impairment evaluated for AD and other causes of cognitive decline. There is no cure for AD to date—the disease progression cannot be stopped or reversed; approved pharmacological agents (donepezil, galantamine, and rivastigmine; memantine) provide symptomatic treatment. However, the disease-modifying therapies are promising; aducanumab and CAD106 are in phase III trials for the early stages of AD. In conclusion, core CSF biomarkers reflect pathophysiology of AD in the early and late stages; the application of approved radiotracers have potential in amyloid-PET brain imaging to detect early AD. - PublicationSocio-demographics and clinical characteristics affecting pre-hospital delays in acute stroke patients: A 6-year registry study from a Malaysian stroke hospital(2020)
;Hong Chuan Loh ;Nazifa Nazri ;Kurubaran Ganasegeran ;Zariah Abdul AzizIrene LooiBackground and objectives: The cumulative time spent without medical intervention in acute stroke patients may affect clinical outcomes. As the onset-to-arrival time to the hospital is crucial for effective treatment interventions, this study aimed to explore the factors associated with pre-hospital delays amongst acute stroke patients. Methods: We explored 932 patients data retrieved from the National Neurology Registry of Seberang Jaya Hospital between January 2013 and December 2018. Data on patient demographics and stroke manifestations were analysed using descriptive, univariate and multivariate logistic regressions. Results: Most patients were men (62.9%) with an average age of 62 years old. In the final multivariate regression model, pre-hospital delay was significantly lower among Chinese patients (aOR=0.6, 95% CI 0.4–0.9, p=0.016) and those using hospital ambulance (aOR=0.4, 95% CI 0.3–0.7, p<0.001), but higher among patients with lacunar infarcts (aOR=2.5, 95% CI 1.4–3.3; p<0.001). Conclusions: Demographic characteristic (ethnicity) and stroke manifestations, particularly stroke subtypes, and mode of transport were mainly associated with pre-hospital delays among acute stroke patients.