1.Quality assurance in forensic pathology.
The Malaysian journal of pathology 2009;31(1):17-22
One of the requirements for proper running of a pathology laboratory is implementation of a quality assurance programme. Forensic pathology is not exempted, especially so when cases are increasing in complexity. It is not difficult to introduce a quality assurance programme even in a small forensic centre. Among the steps that can be implemented including introduction of a set of minimal standards in performance of the autopsy, timeliness and report writing, a vigorous peer review process either internally or externally and participation in external quality programmes. Proper documentation of the post-mortem process (photography, slides and blocks and various imaging modalities) is to be encouraged. There should be limits set on workload of pathologists as overburden is known to lower standards. A pleasant work environment is also essential. Personal continuous medical education should be made mandatory. Introduction of a quality assurance programme will not only improve standards but minimise possible negligence. The post-mortem reports will be seen to carry more weight in court.
Pathology processes
;
quality assurance
;
standards characteristics
;
With quality
;
participation
2.A retrospective study of the accuracy between clinical and autopsy cause of death in the University of Malaya Medical Centre.
Beng Beng Ong ; Jia Jia Wong ; Juliana Hashim
The Malaysian journal of pathology 2004;26(1):35-41
It is well known that diagnostic accuracy of the clinical cause of death has not improved despite advances in diagnostic techniques. We aimed to investigate the accuracy of the clinical cause of death compared with the autopsy cause of death and to see if the Coroner's autopsy can play a role in clinical audit. Our study population consisted of all autopsies where the deceased was hospitalised or resuscitated at the Accident and Emergency Unit of the University of Malaya Medical Centre before death, performed during the period July 1998 to June 2000. The cases were subdivided according to natural and unnatural causes of deaths. Natural deaths were further subdivided in relation to the main organ systems involved while unnatural deaths were subcategorised into trauma, poisoning and burns. The rate of agreement between clinical and autopsy cause of death was further compared with duration of survival in the hospital. Of 132 autopsies included in this study, 115 were Coroner's autopsies. 78% of cases showed agreement between clinical and autopsy cause of death. The agreement rate in Coroner's cases was 80.0%. For natural and unnatural causes, the agreement rate was 56.7% and 84.3% respectively. There were 6 cases (4.5%) where an initial accurate diagnosis might have altered the prognosis of the deceased. In general, the rate of agreement increased with duration of survival of patients. However, this was no longer observed after a survival of more than 28 days. Our findings agree with other similar studies. The diagnostic accuracy of cause of death has not improved despite the modernisation in medical technology. The autopsy still plays an important role in clinical audit and medical education.
Clinical
;
Cause of Death
;
Autopsy
;
agreement
;
seconds
4.No apparent association between beta-amyloid deposition and apolipoprotein E genotype in the non-demented aging brain in a Malaysian population
Koon Chu Yaiw ; Lin Chuan Eu ; Chee Mun Fang ; Beng Beng Ong ; Rajes Qvist ; Kum Thong Wong
Neurology Asia 2012;17(4):325-330
Little is known about the relationship between cerebral beta amyloid (Aβ) deposition and apolipoprotein
E (ApoE) genotype in either Alzheimer disease or the aging brain in multi-ethnic Southeast Asia. We
prospectively examined Aβ deposition in relation to ApoE genotype in 50 normal, non-demented,
aging brains drawn from a Malaysian population, aged 52-92 years, using immunohistochemistry
to detect Aβ and direct PCR sequencing for genotyping. The prevalence of Aβ deposition was 8%.
There was no apparent association between Aβ deposition and possession of the ApoE ε4 allele in
our cohort. Out of 4 cases with Aβ deposition, only one case was heterozygous for the ε4 allele; 3
cases did not have the ε4 allele. The Aβ deposition appears to increase with age and is more likely
to be vascular-type deposition (cerebral amyloid angiopathy) rather than parenchymal deposition in
the form of diffuse and neuritic plaques. A larger sample size with more cases of ApoE ε4 and Aβ
deposition is needed to provide conclusive evidence for the apparent non-association between ApoE
ε4 and Aβ deposition in the aging brain in our multi-ethnic local population.
5.Detection of glycoproteins from human erythrocytes of different ABO blood groups infected with Plasmodium falciparum
Ramon Chin Beng Ong ; Patricia Kim Chooi Lim ; Joon Wah Mak
International e-Journal of Science, Medicine and Education 2011;5(2):18-28
Background: Many proteins released by cells to the
blood and other fluids are glycoproteins. One set of
glycoproteins carry the ABO blood group determinants
and glycoproteins have been shown to be vital in
determining the structure and organization of plasma
membranes. There is evidence suggesting their important
role in cell-to-cell contact, adhesion, hormone
interaction and vital transformation. Differences in
proteins and glycoproteins in the different human
blood groups may influence the invasion process of
Plasmodium falciparum. The objectives of the study were
to determine whether there are any changes in proteins
and glycoproteins of red blood cells upon infection by
P. falciparum and whether these protein and glycoprotein
changes differ in the various ABO blood groups.
Methods: A Malaysian strain of P. falciparum was cultured
in vitro in red blood cells from A, B, O and AB blood
groups. Protein and glycoprotein profiles of uninfected
and P. falciparum- infected red blood cells from the
different human ABO blood groups were analyzed by
SDS-PAGE. For protein bands, the gels were stained
with Coomassie blue while glycoproteins were visualized
following staining of gels using GelCode® Glycoprotein
Staining Kit.
Results: Cell membranes of P. falciparum infected
erythrocytes from different ABO blood groups have
different glycoprotein profiles compared to uninfected
cells. All the infected samples showed a prominent
protein band of molecular weight 99 kDa which was
not present in any of the uninfected samples while a
48 kDa band was seen in four out of the seven infected
samples. The erythrocyte cell membranes of A and AB
blood groups showed different glycoprotein profiles upon
infection with P. falciparum when compared to those
from blood groups B and O.
Conclusion: The two glycoproteins of molecular
weights 99 kDa and 48 kDa should be further studied to
determine their roles in the pathogenesis of malaria and
as potential targets for drug and vaccine development
8.Improving drug allergy label accuracy by supervised safety- and protocol-driven evaluation.
Chiara Jiamin CHONG ; Karen Jui Lin CHOO ; Kheng Yong ONG ; Vivian TAN ; Janet Beng Neo KHOO ; Kavitha Garuna MURTHEE ; Ibrahim Muhammad HANIF ; Chaw Su NAING ; Haur Yueh LEE
Annals of the Academy of Medicine, Singapore 2022;51(11):677-685
INTRODUCTION:
Drug allergies are often self-reported but of unknown accuracy. We carried out a prospective study to examine the utility and safety of formal allergology evaluation, and to identify factors associated with accurate drug allergy labels.
METHOD:
All patients who underwent drug allergy evaluation in our clinic during the study period were recruited. Baseline demographics, characteristics of index hypersensitivity reaction and outcomes of evaluation were recorded.
RESULTS:
A total of 331 patients from March 2019 to June 2021 completed drug allergy evaluation to index drugs of concern. There were 123 (37%) male patients, and the mean age was 49 years (standard deviation 17). There were 170 beta-lactam antibiotics, 53 peri-operative drugs, 43 others, 38 non steroidal anti-inflammatory drugs, and 27 non-beta-lactam antibiotic evaluations. Index reaction occurred within 5 years in 165 (50%) patients, with latency of less than 4 hours in 125 (38%) patients. The most common index reactions were rash, angioedema and urticaria. There were 57 (17%) evaluations stratified as low risk, 222 (67%) moderate risk, and 52 (16%) high risk based on multidisciplinary consensus. Allergy label was found to be false (negative drug evaluation) in 248 (75%) patients, while 16/237 (7%) skin tests, 44/331 (13%) in-clinic graded challenge, and 23/134 (17%) home prolonged challenges were positive (true drug allergy). The most common evaluation reactions were rash and urticaria. No cases of anaphylaxis were elicited.
CONCLUSION
Seventy-five percent of drug allergy labels are inaccurate. Risk-stratified, protocolised allergy evaluation is safe. Prolonged drug challenge increases the sensitivity of drug allergy evaluation and should therefore be performed when indicated.
Humans
;
Male
;
Middle Aged
;
Female
;
Prospective Studies
;
Drug Hypersensitivity/epidemiology*
;
Exanthema
;
Urticaria
;
Monobactams
9.Clinical spectrum of children receiving palliative care in Malaysian Hospitals
Lee Ai Chong ; Farah Khalid ; Teik Beng Khoo ; Siao Hean The ; Geok Lan Kuan ; Aina Mariana Abdul Manaf ; Emieliyuza Alias ; Chae Hee Chieng ; Hadibiah Razali ; Gek Bee Ong ; Zainah Shaikh Hedra ; Intan Nor Chahaya Abdul Shukor ; Jia Jia Wong
The Medical Journal of Malaysia 2017;72(1):32-36
Introduction: Awareness for paediatric palliative care has
resulted in the impetus for paediatrician-led palliative care
services across Malaysia. However, there is paucity of local
data on patients receiving hospital-based paediatric
palliative care. We aim to review the clinical spectrum of
patients referred to these services.
Methods: An observational study of children aged between
0-18 years receiving palliative care at 13 hospitals between
1st January and 31st December 2014 was carried out.
Results: There were 315 patients analysed, 90 (28.6%) and
46 (14.6%) were neonates and adolescents respectively. The
main ICD-10 diagnostic categories for all patients were
identified to be ‘Congenital malformations, deformations
and chromosomal abnormalities’ 117 (37.1%), ‘Diseases of
nervous system’ 76 (24.1%) and ‘Neoplasms’ 60 (19.0%). At
referral 156 (50%) patients had holistic needs assessments.
Patients with ‘Diseases of nervous system’ were assessed
to have significantly more physical needs than the other two
diagnostic categories. Majority of patients who knew of their
diagnosis and prognosis were those with malignancy. Over
a fifth of referrals were at their terminal admission. Of 144
who died, 111 (77.1%) had advanced care plans. There was
bereavement follow-up in 98 (68.1%) patients.
Conclusion: Patients referred for palliative care have varied
diagnoses and needs. To ensure all paediatricians are
competent to deliver quality care to all children, further
education and training initiatives is imperative.
Palliative Care
10.Comprehensive psychological intervention to improve outcome in functional gastrointestinal disorder: a cohort study.
Yu Tien WANG ; Kah Foo Victor KWOK ; Shian Ming TAN ; Ming Hwei YEK ; Wai Choung ONG ; Sylvaine BARBIER ; Beng Yeong NG
Singapore medical journal 2015;56(7):385-392
INTRODUCTIONPatients with functional gastrointestinal disorders (FGIDs) have a decreased quality of life (QoL). Psychological illnesses are strongly associated with FGIDs. This study examined the effect of a comprehensive psychological intervention programme designed for refractory FGID patients.
METHODSRefractory FGID patients at a tertiary gastroenterology unit were encouraged to participate in a psychological intervention programme, which included screening for anxiety and depression in patients, educating patients and physicians on FGIDs, and providing early access to psychiatric consultation for patients with significant psychological illnesses. The duration of follow-up was six months. Outcomes were measured using the Irritable Bowel Syndrome-QoL (IBS-QoL) instrument and the EuroQol five dimensions (EQ-5D) questionnaire.
RESULTSA total of 1,189 patients (68% female, 80% Chinese, mean age 48.6 years) participated in the programme. Among these participants, 51% had a significant psychological disorder (Hospital Anxiety and Depression Scale [HADS] anxiety or depression score > 7). These participants had a significantly poorer QoL (IBS-QoL and EQ-5D, both p < 0.0001), and were more likely to be single or English-speaking, as compared to the participants without psychological disorders. Participants who completed ≥ 3 months of follow-up (n = 906) showed significant and durable improvement. High baseline HADS anxiety score predicted improvement (p < 0.001), with participant IBS-QoL and EQ-5D scores decreasing over time.
CONCLUSIONThe intervention programme was associated with a clinically meaningful improvement in the QoL of patients with refractory FGIDs. High baseline anxiety was predictive of improvement.
Adult ; Anxiety ; complications ; diagnosis ; therapy ; Depression ; complications ; diagnosis ; therapy ; Female ; Follow-Up Studies ; Gastrointestinal Diseases ; complications ; psychology ; therapy ; Humans ; Male ; Mental Disorders ; complications ; therapy ; Middle Aged ; Quality of Life ; Severity of Illness Index ; Singapore ; Surveys and Questionnaires ; Treatment Outcome