Browsing by Author "Zariah Abdul Aziz"
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- PublicationA hospital-based study on ischaemic stroke characteristics, management, and outcomes in Sarawak: Where do we stand?(Elsevier, 2020)
;Teck Long King ;Lee Len Tiong ;Zurainah Kaman ;Win Moe Zaw ;Zariah Abdul AzizLaw Wan ChungBackground: Located on the Borneo Island, Sarawak is the largest state of Malaysia and has a population distinctive from Peninsular Malaysia. The ischaemic stroke data in Sarawak had not been reported despite the growing number of patients annually. We aimed to investigate patient characteristics, management, and outcomes of ischaemic stroke in Sarawak and benchmark the results with national and international published data. Methods: We included ischaemic stroke cases admitted to Sarawak General Hospital between June 2013 and August 2018 from Malaysia National Stroke Registry. We performed descriptive analyses on patient demographics, cardiovascular risk factors, prior medications, smoking status, arrival time, thrombolysis rate, Get With The Guidelines (GWTG)-Stroke measures, and outcomes at discharge. We also numerically compared the results from Sarawak with the published data from selected national and international cohorts. Results: We analysed 1435 ischaemic stroke cases. The mean age was 60.1±13.2 years old; 64.9% were male; median baseline National Institute of Health Stroke Scale was seven points. Hypertension was the most prevalent risk factor of ischaemic stroke; 12.7% had recurrent stroke; 13.7% were active smokers. The intravenous thrombolysis rate was 18.8%. We achieved 80–90% in three GWTG-Stroke performance measures and 90–98% in four additional quality measures in our ischaemic stroke management. At discharge, 57% had modified Rankin Scale of 0–2; 6.7% died during hospitalisation. When compared with selected national and international data, patients in Sarawak were the youngest; Sarawak had more male and more first-ever stroke. Thrombolysis rate in Sarawak was higher compared with most studies in the comparison. Functional outcome at discharge in Sarawak was better than national cohort but still lagging behind when compared with the developed countries. In-hospital mortality rate in Sarawak was slightly lower than the national data but higher when compared with other countries. Conclusion: Our study described characteristics, management, and outcomes of ischaemic stroke in Sarawak. We achieved high compliance with most of GTWG-Stroke performance and quality indicators. Sarawak had better outcomes than the national results on ischaemic stroke. However, there is still room for improvement when compared with other countries. Actions are needed to reduce the cardiovascular burdens for stroke prevention, enhance healthcare resources for stroke care, and improve intravenous thrombolysis treatment in Sarawak. - PublicationAmelioration of Dystonic Opisthotonus in Pantothenate Kinase‐Associated Neurodegeneration Syndrome with Absent “Eye‐of‐the‐Tiger” Sign Following Bilateral Pallidal Deep Brain Stimulation(2019)
;Nor Amelia Mohd Fauzi ;Norlinah Mohamed Ibrahim ;Shahizon Azura Mohamed Mukari ;Thanabalan JeganZariah Abdul AzizPantothenate kinase-associated neurodegeneration (PKAN) is a rare autosomal recessive disorder causing progressive generalized dystonia characterized by neurodegeneration and brain iron accumulation (NBIA) due to pantothenate kinase 2 (PANK2) gene mutations.1 The radiological hallmark of PKAN, the “eye-of-the-tiger” sign, characterized by bilateral hypointensity with central hyperintensity in the globus pallidus on T2-weighted brain Magnetic Resonance Imaging (MRI) may be absent in some cases.2 Hence, clinicians may rely on phenotypic clues to aid diagnosis. Despite genetic advances, treatment for NBIA remains symptomatic. Bilateral globus pallidus internus deep brain stimulation (GPi-DBS) has been successful in PKAN patients refractory generalized dystonia.3 Herein we report a case of an atypical PKAN patient with severe dystonic opisthotonus and absent eye-of-the-tiger sign who obtained significant improvement following bilateral GPi-DBS. - PublicationModelling the prognostic effect of glucose and lipid profiles on stroke recurrence in Malaysia: an event-history analysis(2020)
;Xin Wee Chen ;Mohd Nazri Shafei ;Zariah Abdul Aziz ;Norsima Nazifah SidekKamarul Imran MusaBackground: Diabetes and dyslipidemia are significantly associated with stroke recurrence, yet the evidence for this relationship is conflicting. Consequently, the parameters in the glucose and lipid profiles may inform us regarding their relationship with stroke recurrence, thus enhancing the physicians’ clinical decision-making. Aim. This study sought to investigate whether glucose and lipid profiles could prognosticate stroke recurrence in Malaysia. Methods: We conducted a retrospective hospital-based study where we analyzed the first-ever stroke cases regarding about which the Malaysia National Stroke Registry was informed between 2009 and 2017, that fulfilled this study’s criteria, and that were followed for stroke recurrence. Using the Cox proportional hazard regression analysis, we estimated the adjusted hazard ratios (HRs), which reflected the prognostic effect of the primary variables (i.e., glucose and lipid profiles on the first-stroke admission) on stroke recurrence. Results: Among the 8,576 first-ever stroke patients, 394 (4.6%) experienced a subsequent first stroke recurrence event. The prognostic effect measured by univariable Cox regression showed that, when unadjusted, ten variables have prognostic value with regards to stroke recurrence. A multivariable regression analysis revealed that glucose was not a significant prognostic factor (adjusted HR 1.28; 95% CI [1.00–1.65]), while triglyceride level was the only parameter in the lipid profile found to have an independent prognostication concerning stroke recurrence (adjusted HR: 1.28 to 1.36). Conclusions: Triglyceride could independently prognosticate stroke recurrence, which suggests the role of physicians in intervening hypertriglyceridemia. In line with previous recommendations, we call for further investigations in first-ever stroke patients with impaired glucose and lipid profiles and suggest a need for interventions in these 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. - 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.