1.Pharmacogenomics screening of HLA-B*1502 in epilepsy patients: How we do it in the UKM Medical Centre, Malaysia
Sue-Mian Then ; Zam Zureena Mohd Rani ; Azman Ali Raymond ; Rahman Jamal
Neurology Asia 2013;18(s1):27-29
Previous studies have shown that carbamazepine-induced Stevens-Johnson syndrome (SJS) and
toxic epidermal necrolysis (TEN) patients is associated with the HLA-B*1502 allele. Screening for
HLA-B*1502 before using carbamazepine can prevent SJS/TEN particularly in populations with high
frequency of the allele. The objective of this paper was to describe how the UKM Medical Centre,
Malaysia was able to set up a cost effective screening of HLA-B*1502 for patients taking carbamazepine.
The cost of in-house HLA-B⁄1502 screening was less than those commercially available, and was
sensitive and specifi c.
2.The Ability of Recovery Locus of Control Scale (RLOC) and Post-traumatic Stress Symptoms (PTSS) to Predict the Physical Functioning of Stroke Patients
Mohd Faizal Mohd Zulkifly ; Shazli Ezzat Ghazali ; Normah Che Din ; Asmawati Desa ; Azman Ali Raymond
Malaysian Journal of Medical Sciences 2015;22(5):31-41
Background: The aim of this study was to address the ability of the recovery locus of control
scale (RLOC) and post-traumatic stress symptoms (PTSS) to predict physical functioning among
stroke patients. In addition, the best predictors within the subdomains of the RLOC and PTSS were
also investigated.
Methods: A total of 147 stroke patients aged 33–85 years who had intact cognitive functioning
were involved in the study. The Recovery Locus of Control Scale (RLOC), the Impact of Event Scale-
Revised (IES-R), and the Barthel Index (ADL) were administered to respondents six weeks after
stroke.
Results: The results showed that the RLOC and PTSS were significant predictors and
were capable of predicting 31% of the physical functioning of stroke patients (adjusted R2 = 0.31;
P < 0.001). Furthermore, with respect to clinical factors, the affected lesion side contributed to
predicting 7% of the physical functioning (R2 = 0.07; P < 0.001). A hierarchical regression analysis
found that the internal recovery locus of control (IRLOC) was a predictor capable of explaining 18%
of the predicted physical functioning (adjusted R2 = 0.18; P < 0.001). Meanwhile, avoidance was the
most influential significant predictor among PTSS, contributing to 24% of the predicting physical
functioning (adjusted R2 = 0.24; P < 0.001).
Conclusion: In conclusion, the RLOC and PTSS were capable of predicting physical
functioning among stroke patients.
4.HLA-B*15:02 screening in epileptic patients using a high resolution melting-real time PCR (HRM-QPCR) method
Zam Zureena Mohd Rani ; Nor Azian Abdul Murad ; Sue-Mian THEN ; Suthashini Panja BERNAM ; Asmaa ABDULLAH ; Saberi SAIMUN ; Sri Noraima OTHMAN ; Raymond Azman ALI ; Rahman JAMAL
Neurology Asia 2018;23(2):137-144
Background: The HLA-B*15:02 polymorphism in epileptic patients is known to be associated with carbamazepine-induced Stevens-Johnson syndrome (SJS). The prevalence of HLA-B*15:02 polymorphism seemed to be ethnic-specific with a higher frequency of HLA-B*15:02 in Asian compared to the Europeans. This study was performed to determine the frequency of the HLA-B*15:02 polymorphism in epileptic patients at the Chancellor Tuanku Muhriz Hospital-UKM Medical Centre (HCTM-UKMMC) using high resolution melting-real time PCR (HRM-QPCR) method. Methods: We performed a fast and effective in-house high resolution melting-real time polymerase chain reaction method and compared it with the conventional multiplex-PCR method. The specificity and sensitivity of each test were also determined using DNA from saliva. Results: Using the conventional multiplex-PCR approach for screening, 25 out of 64 (39.1%) epileptic patients were positive for HLA-B*15:02. However, using the HRM-QPCR technique, 24/64 (37.5%) of the patients were positive. The one patient who tested positive by the multiplex-PCR but negative using the HRM-QPCR turned out to be negative by DNA sequencing. The HRM-QPCR and DNA sequencing showed 100% sensitivity and specificity. The multiplex-PCR showed 100% sensitivity and 98.4% specificity compared to both HRM-QPCR and DNA sequencing. The HRM-QPCR is also more cost-effective (<$16.40 USD/test) and less time-consuming when compared to the multiplex-PCR ($25.15 USD/test).Conclusion: Our result suggested that multiplex PCR, HRM-QPCR and Sanger sequencing can be used for detection of HLA-B*15:02. However, a qualitative method such as multiplex PCR should be confirmed with other quantitative methods such as HRM-QPCR and Sanger sequencing.
5.A validation study of the Bahasa Malaysia version of the National Institute of Health Stroke Scale
Najma Kori ; Wan Asyraf Wan Zaidi ; Rabani Remli ; Azman Ali Raymond ; Norlinah Mohamed Ibrahim ; Hui Jan Tan ; Syed Zulkifli Syed Zakaria ; Zhe Kang Law ; Kartini Ahmad ; Wan Nafisah Wan Yahya ; Ramesh Sahathevan
Neurology Asia 2018;23(3):225-232
Background & Objectives: The National Institute of Health Stroke Scale (NIHSS) provides a valid
and quick assessment of stroke severity in hyperacute stroke management. Stroke patients who are
eligible for reperfusion therapy require prompt assessment. There is no validated Bahasa Malaysia
(BM) version of the NIHSS that allows easier assessment by BM-speaking health professionals.
This study aimed to translate and validate a BM version of the NIHSS. Methods: The English NIHSS
was translated to BM, then back translated to ensure linguistic accuracy. We also adapted the language
assessment of the NIHSS to be more culturally appropriate. Training and certification videos were
downloaded from the NIH website and dubbed into BM. We determined intra-class correlation and
unweighted kappa as the best measure of reliability. Median scores were used in the analysis for
language items. Results: One hundred and one raters participated in the test-retest reliability study.
Agreement between the original NIHSS and our translated version of the BM-NIHSS was good (ICC
= 0.738, 95% CI: 0.611 to 0.823). Fair to moderate agreement was found on item-by-item analysis
(unweighted κ=0.20-0.50) despite high observed agreement. Fifty patients participated in the language
assessment arm. Scores were better in BM for reading, naming objects and repetition (Mdn = 100, p
< 0.001). There was no difference in the median scores for the description component.
Conclusions: The BM-NIHSS is a valid translation of the NIHSS, and may be used in clinical practice
by BM-speaking healthcare professionals.
6.Incidence and risk factors of delirium in patients with acute ischaemic stroke
Boon Hau Ng ; Zhe Kang Law ; Rabani Remli ; Hui Jan Tan ; Norlinah Mohamed Ibrahim ; Azman Ali Raymond ; Wan Asyraf Wan Zaidi ; Syed Zulkifli Syed Zakaria ; Nafisah Wan Yahya ; Ramesh Sahathevan
Neurology Asia 2019;24(4):295-302
Background & Objectives: The reported incidence of post-stroke delirium varies substantially in current
medical literature. The impact of delirium on mortality and morbidity is significant and there is need
for sustained research on the topic. We aimed to determine the incidence, risk factors and outcome of
delirium in acute ischaemic stroke. Methods: We conducted a cross-sectional observational study on
consecutive patients with ischaemic stroke. The Confusion Assessment Method was used to diagnose
delirium within seven days of stroke onset. Results: Two hundred and eighty patients were recruited
(mean age 63.6 years) and 36 (12.9%) developed delirium. After adjustments for covariates, age >65
years (odds ratio, OR 5.2; 95% confidence interval 1.6-17.5); pre-existing dementia (6.5; 1.1-38.2);
TACI (7.2; 1.5-35); and a National Institute of Health Stroke Scale of ≥10 (6.8; 1.7-26.4), were
independently associated with a risk of developing delirium. Lacunar infarcts were not associated with
delirium (0.07; 0.03-0.16). The majority of patients with delirium were cared for in a dedicated stroke
unit but this proportion was not significant compared to those without delirium (69.4% vs 58.2%,
p=0.20). Delirious patients had significantly higher in-patient mortality (8.3% vs 0%, p=0.002) and
longer length of hospital stay (6.94 vs 3.98 days, p< 0.001).
Conclusions: One in 8 patients with ischaemic stroke in our centre developed delirium. Older age,
pre-existing dementia and severe stroke were independent predictors of delirium. Patients with lacunar
infarcts did not develop delirium as often as those with other stroke types. Delirium significantly
increased in-patient mortality and length of hospital stay.