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11 results on '"Shahrul, K."'

7. Postural blood pressure electrocardiographic changes are associated with falls in older people

Author

Nor Izzati Saedon, Hui Min Khor, Kit Mun Tan, P J H Poi, Shahrul K. Kamaruzzaman, Maw Pin Tan, Kok Han Chee, Imran Zainal-Abidin, and Ai-Vyrn Chin

Subjects
Male, medicine.medical_specialty, Supine position, Posture, Poison control, Blood Pressure, 030204 cardiovascular system & hematology, Dizziness, Syncope, 03 medical and health sciences, Electrocardiography, Hypotension, Orthostatic, 0302 clinical medicine, Internal medicine, medicine, Humans, PR interval, Aged, Presyncope, medicine.diagnostic_test, Endocrine and Autonomic Systems, business.industry, Odds ratio, medicine.disease, Confidence interval, Blood pressure, Cross-Sectional Studies, Cardiology, Physical therapy, Accidental Falls, Female, Neurology (clinical), business, 030217 neurology & neurosurgery
Abstract

To determine the magnitude of postural blood pressure change, differences in ECG between fallers and non-fallers were measured. Postural blood pressure change is associated with symptoms of dizziness, presyncope, and syncope. In this cross-sectional study were included participants from The Malaysian Falls Assessment and Intervention Trial: fallers, aged 65 years or older with two or more falls or one injurious fall in 12 months, from a teaching hospital; and non-fallers, aged 65 years and older found through word-of-mouth and advertising. Noninvasive beat-to-beat blood pressure was measured at 10 min supine rest and 3 min standing. The maximal drop in systolic and diastolic pressure was calculated from a 12-lead ECG interpreted by a cardiologist. Basic demographics, medical history, and symptoms of dizziness, presyncope, and syncope were recorded for all patients. We recruited 155 fallers and 112 non-fallers. Fallers had a significantly longer PR interval (179 ± 32 vs. 168 ± 27 ms, p = 0.013) and a longer corrected QT interval (449 ± 41 vs. 443 ± 39 msec, p = 0.008), and larger change in SBP (28 ± 14 vs. 19 ± 9 mmHg, p

Published
2015

8. Micromechanics Analysis of Rhombus Model via Finite Elements Integrated with Taguchi Method and Principle Component Analysis.

Author

Siti Nur Afiqah, K. A., Mizamzul, M. Nik, and Shahrul, K.

Subjects
MICROMECHANICS, ALUMINUM, MECHANICAL behavior of materials, METALLIC composites, TAGUCHI methods
Abstract

The design of composites is a crucial stage that needs to be systematically considered before its fabrication take place especially when it relates to complex and micromechanics interaction. The purpose of this paper is to develop and optimize the micromechanical mechanism of rhombus unit cell using different types of materials by using finite element analysis integrated with the Taguchi method and principal component analysis (PCA). In this study, three different fibres were selected such as E-glass, Kevlar and Boron and as for matrix materials were epoxy, polyester and aluminium, respectively. Different parameters were controlled and statistically analysed in the optimization phase. The findings showed that the set of optimal parameters in designing the rhombus model related to micromechanics properties were identified as fibre volume fraction of 20%, the vertex angle for rhombus model is 75º, the thickness for a unit cell model is 0.03 mm and the load applied to the model is 100N. As for the best combination of materials were identified as Boron/Aluminium composite. [ABSTRACT FROM AUTHOR]

Published
2018
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11. The views of older Malaysians on advanced directive and advanced care planning: a qualitative study.

Author

Htut Y, Shahrul K, and Poi PJ

Subjects
Aged, Aged, 80 and over, Female, Humans, Interviews as Topic, Malaysia, Male, Physician-Patient Relations, Qualitative Research, Quality of Life, Religion, Surveys and Questionnaires, Advance Directives, Attitude, Terminal Care
Abstract

The provision of optimum care for the ageing population is dependent on the understanding of their views and values on end of life issues. A qualitative descriptive study was conducted to describe views of elderly Malaysians on Advanced Care Planning (henceforth ACP) and Advanced Directives (henceforth AD), and explore factors influencing these views. Fifteen elderly subjects with ages ranging from 65 to 83 years, representing different ethnic and religious groups in Malaysia were selected for in-depth interviews guided by a questionnaire. Five core themes were extracted from the interviews: 1) Considering the future 2) Contingency plans for future illnesses 3) Attitudes towards life prolonging treatment procedures 4) Doctor-patient relationships and 5) Influence of religion on decisions related to future illness. Despite the lack of knowledge on ACP and AD, older respondents were very receptive to their concept. Although the majority agreed on the importance of planning for future medical management and having open discussion on end of life issues with their doctor, they felt it unnecessary to make a formal written AD. Most felt that the future was best left to fate or God, and none had made any contingency plan for severe future illnesses citing religion as reason for this view. Cardiopulmonary resuscitation, mechanical ventilation and dialysis were considered by most to be invasive life prolonging treatments. We suggest that doctors initiate discussions on end of life care with every older patient and their family so as to promote awareness and introduce the concept of ACP/AD to a Malaysian setting.

Published
2007
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