Displaying publications 1 - 20 of 52 in total

Abstract:
Sort:
  1. Tan WH, Ong L, Strijk JS
    PhytoKeys, 2023;219:1-10.
    PMID: 37252448 DOI: 10.3897/phytokeys.219.95991
    A new species from the Fagaceae family, Castanopsiscorallocarpus Tan & Strijk, is described from Royal Belum State Park in Peninsular Malaysia. Here, we provide technical illustrations, colour images and a description of its conservation status and the collecting locality, in addition to a comparative analysis with other species in the region. The solitary nut of C.corallocarpus has a morphologically unique cupule, lined with rows of thick coral-like spines not seen in other Castanopsis species.
  2. Rohana J, Boo NY, Yong SC, Ong LC
    Med J Malaysia, 2005 Aug;60(3):338-44.
    PMID: 16379189 MyJurnal
    A quality assurance study was carried out prospectively in two phases at the Neonatal Intensive Care Unit (NICU) of Hospital Universiti Kebangsaan Malaysia. The objectives of the study were to determine the turn-around-time (TAT) of radiographs requested for infants undergoing intensive care treatment in the NICU and the effects of a standard operating procedure introduced based on initial findings of first phase of the study on subsequent TAT. The TAT was defined as the time taken for the radiograph to be ready for viewing after the attending doctor had requested for it to be done on an infant. During phase one of the study, none of the requested radiographs was ready to be viewed by the doctors within the standard TAT of 45 minutes. The problems identified were ward staffs delay in sending request forms to the radiology department, radiographers' delay in shooting and processing the films, and delay by NICU porter in collecting the processed films. Based on these findings, a standard operating procedure (SOP) was drawn up jointly by the staff of NICU and Department of Radiology. During phase two of the study conducted at one month after implementation of the SOP, there was a reduction of TAT by 50%. However, only 3 (4.3%) of the radiographs achieved the standard TAT. The main problems identified during phase two were delay in sending request forms and in collecting processed radiographs by the porter system. The dismal TAT of radiographs in NICU was related primarily to human behaviour. Besides continuous staff education, replacement of the porter system with electronic system may improve the TAT.
    Keywords: Turn-around time, radiographs, neonatal intensive care unit, standard operating procedure, Kuala Lumpur
  3. Ong LK, Sivaneswaran L, Mohd Najib A, Devindran M, Say BL, Rohan MJ
    Med J Malaysia, 2020 07;75(4):400-402.
    PMID: 32724002
    In Malaysia, COVID-19 pandemic recorded considerable number of cases. Many hospitals have been converted into COVID-19 centres to manage these cases. The Penang General Hospital was designated as a hybrid hospital to manage both COVID-19 and non-COVID-19 cases. Consequently, services across specialties, including urology have been affected. Triage of referrals was necessary to ensure optimum patient care, thus we designed a triage system to address this situation. A record screening system of patients was also implemented to limit outpatient appointments. We share this early experience in managing urology patients during this pandemic.
  4. Ong LC, Kanaheswari Y, Chandran V, Rohana J, Yong SC, Boo NY
    Singapore Med J, 2009 Jul;50(7):705-9.
    PMID: 19644627
    The early identification of asphyxiated infants at high risk of adverse outcomes and the early selection of those who might benefit from neuroprotective therapies are required. A prospective observational study was conducted to determine if there were any early clinical, neuroimaging or neurophysiological parameters that might predict the outcome in term newborns with asphyxia.
  5. Ong L, Selladurai BM, Dhillon MK, Atan M, Lye MS
    Pediatr Neurosurg, 1996 Jun;24(6):285-91.
    PMID: 8988493
    The outcome of 151 children less than 15 years of age and admitted within 24 h of head injury was studied in relation to clinical and computed tomography (CT) scan features. Thirty one (20.5%) had a poor outcome (24 died, 6 were severely disabled at 6 months after injury and 1 was in a persistent vegetative state) while 120 (79.5%) had a good outcome (89 recovered well and 31 were moderately disabled). Factors associated with a poor outcome were Glasgow Coma Scale (GCS) score 24 h following injury, presence of hypoxia on admission and CT scan features of subarachnoid haemorrhage, diffuse axonal injury and brain swelling. GCS scores alone, in the absence of other factors, had limited predictive value. The prognostic value of GCS scores < 8 was enhanced two-to fourfold by the presence of hypoxia. The additional presence of the CT scan features mentioned above markedly increased the probability of a poor outcome to > 0.8, modified only by the presence of GCS scores > 12. Correct predictions were made in 90.1% of patients, indicating that it is possible to estimate the severity of a patient's injury based on a small subset of clinical and radiological criteria that are readily available.
  6. Kow FP, Adlina B, Sivasangari S, Punithavathi N, Ng KK, Ang AH, et al.
    Med J Malaysia, 2018 08;73(4):233-238.
    PMID: 30121686 MyJurnal
    INTRODUCTION: As pharmacological treatment of hypertension has become a burden worldwide, the study looked into nonpharmacological ways of reducing blood pressure. The objective was to determine if music guided, slow and deep breathing will reduce the blood pressure among patients with hypertension in eight weeks.

    METHODS: A participant blinded, multi-centre, randomised controlled trial was conducted in which the participants in the intervention group (IG) practiced deep breathing exercise guided by sound cues and those in the control group (CG) listened to the music. The primary end point was reduction in blood pressure at eight weeks.

    RESULTS: 87 patients, 46 males and 41 females with mean age of 61.1 years were recruited and 93.1% of them successfully completed the study. There was significant reduction in systolic and diastolic Blood Pressure from baseline by 8 weeks in both groups. The reduction in Mean systolic blood pressure (SBP) in the control arm was 10.5mmHg compared to 8.3mmHg (p<0.001) in intervention group. Diastolic blood pressure (DBP) reduction in control and intervention groups were 5.2 mmHg (p<0.001) and 5.6 mmHg (p<0.001) respectively. The absolute difference in SBP reduction from baseline in IG & CG was -2.2 (95%CI: -7.8 to 3.5) and DBP was -0.4 (95%CI: -2.9 to 3.6). However, blood pressure reduction between the two groups was not significant.

    CONCLUSIONS: Both listening to music and deep breathing exercise were associated with a clinically significant reduction in SBP and DBP. However, deep breathing exercise did not augment the benefit of music in reducing BP.

  7. Wo SW, Ong LC, Low WY, Lai PSM
    Epilepsy Res, 2017 10;136:35-45.
    PMID: 28753498 DOI: 10.1016/j.eplepsyres.2017.07.009
    PURPOSE: To systematically examine published literature which assessed the prevalence of academic difficulties in children with epilepsy (CWE) of normal intelligence, and its associating factors.

    METHODS: A search was conducted on five databases for articles published in English from 1980 till March 2015. Included were studies who recruited children (aged 5-18 years), with a diagnosis or newly/recurrent epilepsy, an intelligent quotient (IQ) of ≥70 or attending regular school, with or without a control group, which measured academic achievement using a standardised objective measure, and published in English. Excluded were children with learning difficulties, intellectual disabilities (IQ<70) and other comorbidities such as attention deficits hyperactive disorder or autism. Two pairs of reviewers extracted the data, and met to resolve any differences from the data extraction process.

    RESULTS: Twenty studies were included. The majority of the studies assessed "low achievement" whist only two studies used the IQ-achievement discrepancy definition of "underachievement". Fourteen studies (70%) reported that CWE had significantly lower academic achievement scores compared to healthy controls, children with asthma or reported norms. The remaining six studies (30%) did not report any differences. CWE had stable academic achievement scores over time (2-4 years), even among those whose seizure frequency improved. Higher parental education and children with higher IQ, and had better attention or had a positive attitude towards epilepsy, were associated with higher academic achievement score. Older children were found to have lower academic achievement score.

    CONCLUSIONS: In CWE of normal intelligence, the majority of published literature found that academic achievement was lower than controls or reported norms. The high percentages of low achievement in CWE, especially in the older age group, and the stability of scores even as seizure frequency improved, highlights the need for early screening of learning problems, and continued surveillance.

  8. Cheong YM, Jegathesan M, Singh M, Wong S, Ong L
    Malays J Pathol, 1985 Aug;7:51-2.
    PMID: 3939616
  9. Ong LS, Hamiadji T, Chong KL
    Med J Malaysia, 1980 Sep;35(1):53-7.
    PMID: 7253999
    This study is based on measuring the d.c. (direct current) skin conductance of the acupuncture points representing the heart on the external ear. The subjects were 30 healthy volunteers and 20 cardiac patients. The results obtained showed that the skin resistance of the heart acupuncture loci on the auricle of the cardiac patients were markedly reduced when compared with that of the healthy controls. The value of this method of auricular electroacupuncture diagnosis is discussed.
  10. Ruzanna ZZ, Ong LY, Cheah YC, Fairuz A, Midin M
    Med J Malaysia, 2012 Feb;67(1):39-44.
    PMID: 22582547 MyJurnal
    This cross sectional study aimed to explore the association between dyslipidaemia and types of antipsychotics in 100 patients with chronic schizophrenia. Lipid profile, weight, height and waist circumference together with other relevant factors were measured. We found there was a high rate of dyslipidaemia among patients with chronic schizophrenia treated with antipsychotics (66%), however there was no significant difference found between typical or atypical antipsychotics (OR=1). All sociodemographic and clinical factors were not significantly associated with dyslipidaemia. Only non-Malays were found to have significant dyslipidaemia (p<0.1). Effective management is needed to deal with the dyslipidaemia in this group.
  11. Ong LC, Chandran V, Peng R
    J Paediatr Child Health, 1999 Aug;35(4):358-362.
    PMID: 28871653 DOI: 10.1046/j.1440-1754.1999.00383.x
    OBJECTIVE: To compare parenting stress among Malaysian mothers of children with mental retardation and a control group, and to determine factors associated with stress.
    METHODOLOGY: Seventy-five mothers of children with mental retardation aged 4-12 years and 75 controls (those without disabilities who attended the walk-in paediatric clinic) participated in the Parenting Stress Index (PSI). Intelligence quotient (IQ) and Child Behaviour Checklist (CBCL) scores, together with sociodemographic data, were entered into a multiple stepwise regression analysis, using the PSI as the criterion.
    RESULTS: Mothers of children with mental retardation scored significantly higher than control subjects in both the child-related domain (difference between means 26.1, 95% confidence interval 19.6-32.5) and parent-related domain (difference between means 15.0, 95% confidence interval 7.9-22.1) of the PSI. The total child behaviour scores from the CBCL (P < 0.01), IQ scores (P < 0.01) and sibship size (P < 0.01) were associated with child-related domain scores. For the parent-related domain, CBCL (P < 0.01) and IQ scores (P = 0.01) remained important factors but Chinese ethnicity (P < 0.01) and maternal unemployment (P < 0.01) were also significant predictors of stress.
    CONCLUSION: A large proportion of mothers of children with mental retardation experienced substantial parenting stress, especially Chinese and unemployed mothers, and this warrants appropriate intervention.
    Study site: Outpatient clinic, Paediatric Institute, Hospital Kuala Lumpur, Malaysia
  12. Ong LC, Boo NY, Chandran V, Zamratol SM, Allison L, Teoh SL, et al.
    Ann Trop Paediatr, 1997 Sep;17(3):209-16.
    PMID: 9425375
    A prospective study was carried out to (i) compare head growth patterns of 103 very low birthweight (VLBW, < 1500 g) Malaysian infants and 98 normal birthweight (NBW, 2500- < 4500 g) controls during the 1st year of life; and (ii) examine the relationship between neurodevelopmental outcome at 1 year of age and occipito-frontal head circumferences (OFC) at birth and at 1 year of age in VLBW babies. When compared with those of NBW infants at birth, mid-infancy and 1 year of age, the mean OFC ratios (observed/expected OFC at 50th percentile) of VLBW infants were significantly lower (p < 0.001). Small-for-gestational-age (SGA) VLBW babies had significantly lower mean OFC ratios than their appropriate-for-gestational-age (AGA) VLBW counterparts at birth (p < 0.001), but this difference was no longer seen at mid-infancy or at 1 year of age. Logistic regression analysis showed that abnormal late neonatal cranial ultrasound findings (odds ratio 8.5, 95% confidence interval 4.12-22.07; p < 0.001) and each additional day of oxygen therapy (odds ratio 1.15, 95% confidence interval 1.00-4.45; p = 0.045) were significant risk factors associated with neurodevelopmental disability at 1 year of age, while mean OFC ratios at birth or at 1 year of age were not. Poor postnatal head growth per se did not predict disability, but probably reflected the consequences of "brain injury" as evidenced by abnormal brain scans.
  13. Sharanjeet-Kaur, Norlaila MD, Chung KM, Azrin EA, Boo NY, Ong LC
    Clin Ter, 2011;162(6):517-9.
    PMID: 22262320
    A cross-sectional study was undertaken to determine and compare the refractive status of premature children without retinopathy of prematurity (ROP) and full term children below the age of three years.
  14. Loh SY, Ong L, Ng LL, Chew SL, Lee SY, Boniface G
    Asian Pac J Cancer Prev, 2011;12(6):1489-95.
    PMID: 22126487
    BACKGROUND: Increasing survivorship warrants evidence-based intervention to help women manage living effectively with breast cancer. Breast cancer survivors may have many medical and psychosocial issues in the post- treatment period. Qualitative research was carried out to assess survivors' overall experience and if intervention helps in survivorship care. This paper reports exploration of benefit-findings from participation in an earlier 4-week self management intervention.

    METHODS: We used a grounded theory approach to analyze three focus groups conducted between May and August 2010 in Kuala Lumpur. We used random sampling to recruit the informants (n=21), all of whom had earlier participated in the 4 week self-management program held two years previously.

    FINDINGS: The women reported positive experience and growth with the self management program. Self-efficacy appears as an important underlying theme for successful experiences. The lack of proactive plans to provide bereavement support to surviving women was a key negative experience.

    CONCLUSION: The intervention successfully brought women together to work in close partnership with health professionals on ways to self manage the medical, emotional and role task as they live indefinitely with breast cancer, a new chronic illness. The beneficial effect from the 4 week intervention was expressed by women even at 2 years after the program. Having successfully developed a tightly knitted group, a major oversight was the lack of professional support on bereavement for grieving members when close friends passed away.

  15. Kanaheswari Y, Razak NN, Chandran V, Ong LC
    Spinal Cord, 2011 Mar;49(3):376-80.
    PMID: 20838404 DOI: 10.1038/sc.2010.125
    Prospective cross-sectional multidimensional study using clinical assessment and standard measures.
  16. Ong LC, Boo NY, Chandran V
    J Paediatr Child Health, 2001 Aug;37(4):363-8.
    PMID: 11532056 DOI: 10.1046/j.1440-1754.2001.00694.x
    OBJECTIVE: To determine neonatal, early developmental and social risk factors that predict the neurocognitive and behavioural outcome of very low birthweight (VLBW) preschool children at four years of age.

    METHODOLOGY: From a cohort of 151 eligible VLBW survivors born in Kuala Lumpur Maternity Hospital, 116 (76.8%) were prospectively followed up from birth till four years. A standardised neurological examination was performed at one and four years to determine the presence of impairment and cerebral palsy, respectively. Cognitive development was assessed using the Mental Scale of the Bayley Scales of Infant Development (MDI) at one year and the Weschler Preschool and Primary Scale of Intelligence-Revised (WIPPSI-R) at four years. Motor coordination was assessed using the Movement Assessment Battery for Children (Movement-ABC). Mothers completed the Child Behaviour Checklist (CBCL) and Parenting Stress Index (PSI) questionnaires. Logistic and multiple regression analyses were used to determine factors associated with cerebral palsy, IQ scores, Movement-ABC and CBCL scores.

    RESULTS: Factors associated with cerebral palsy were lower MDI scores at one year (P = 0.001) and late neonatal cranial ultrasound abnormalities (P = 0.036). Minor (P = 0.016) or major impairment (P = 0.003) at one year of age and a low level of paternal education (P = 0.01) were associated with poor motor function on the Movement-ABC scale. Lower levels of maternal education (P < 0.001), impairment at one year (P = 0.002) and late neonatal cranial ultrasound abnormalities (P = 0.039) predicted Full Scale IQ scores. Higher PSI scores (P = 0.001), younger mothers (P = 0.003) and late neonatal cranial ultrasound abnormalities (P = 0.009) were associated with worsened child behaviour scores on the CBCL scale.

    CONCLUSION: Social factors and the caregiving environment were important determinants of cognitive and behavioural outcome. Cranial ultrasound abnormalities in the late neonatal period and the developmental status at one year might be useful in identifying high risk infants in need of long-term surveillance.
  17. Boo NY, Ong LC, Lye MS, Wong KP, Mastura M
    J Trop Pediatr, 1993 Aug;39(4):224-9.
    PMID: 8411316
    A prospective study was carried out to determine the incidence, clinical presentation, early outcome, and risk factors associated with periventricular haemorrhage (PVH) in 88 (84 per cent) of the 105 consecutive very low birth weight (VLBW) (< 1500 g) Malaysian neonates born in the Maternity Hospital, Kuala Lumpur. Based on the cranial ultrasound findings, PVH was detected in 86 of the 88 neonates (98 per cent, 95 per cent confidence intervals: 95 to 101). Seventeen (20 per cent) of them had grade I, 52 (61 per cent) had grade II, 7 (8 per cent) had grade III and 10 (12 per cent) had grade IV PVH. PVH was detected in all the affected neonates by the fifth day of life. Sixty-four neonates (74 per cent) were symptomatic when PVH was first detected. Shock (P < 0.01), pallor (P = 0.028), low haematocrit of less than 40 per cent (P < 0.01), convulsion (P < 0.001), and bulging of anterior fontanelle (P = 0.019) were significantly more common in the neonates with severe PVH (grades III or IV). Death occurred in 43/86 (50 per cent, 95 per cent confidence interval: 39-61 per cent) of the neonates with PVH before their first discharge from the hospital. Ventriculomegaly developed in 29/43 (67 per cent, 95 per cent confidence intervals: 54.4-81.4) of the survivors with PVH. Our study suggests that PVH is a common problem in the Malaysian VLBW neonates. To reduce the incidence and severity of this condition, prevention of preterm delivery and improvement in the basic facilities for neonatal care would help.
  18. Ong LC, Afifah I, Sofiah A, Lye MS
    Ann Trop Paediatr, 1998 Dec;18(4):301-7.
    PMID: 9924586 DOI: 10.1080/02724936.1998.11747964
    A hospital study was carried out to compare parenting stress among 87 Malaysian mothers of children with cerebral palsy and a control group (comprising 87 mothers of children without disability who attended the walk-in paediatric clinic), using the Parenting Stress Index (PSI) questionnaire. Multiple regression analysis was used to determine socio-demographic and medical factors associated with child-domain stress (CDS) and parent-domain stress (PDS). Mothers of children with cerebral palsy scored significantly higher than control subjects on all sub-scales of CDS and PDS (p < 0.01), except for the sub-scale of 'role restriction'. The presence of cerebral palsy (p < 0.001) and activities of daily living (ADL) scores (p < 0.001) were significantly associated with CDS. Factors predictive of PDS were ADL scores (p < 0.001), number of hospitalizations over the past year (p = 0.024), level of maternal education (p = 0.018) and Chinese mothers (p < 0.001). Although this study demonstrated that Malaysian mothers of children with cerebral palsy experienced higher levels of stress than controls, the impact of cerebral palsy per se on parenting stress was modified by other factors such as increased care-giving demands, low maternal education and ethnic background. Habilitation should be directed at easing the burden of daily care, minimizing hospital re-admissions and targeting appropriate psychosocial support at specific subgroups to change parental perception and expectations.
    Study site: neurology clinics or physiotherapy department or inpatients, Paediatric Institute, Kuala Lumpur, Malaysia
  19. Ong LC, Chandran V, Zasmani S, Lye MS
    J Paediatr Child Health, 1998 Aug;34(4):363-8.
    PMID: 9727180
    OBJECTIVES: To compare the neurobehavioural outcome of children aged 6-12 years with severe closed head injury [sCHI] (coma > 24 h), mild-to-moderate head injury [mCHI] (coma < 6 h) and orthopaedic controls.

    METHODS: Twenty-nine children in each group, matched for age, sex and ethnicity, were assessed using the Glasgow outcome Scale (GOS), Weschler Intelligence Scale for Children (WISC-III), Movement Assessment Battery for Children (Movement ABC), Wide Range Assessment of Learning and Memory (WRAML) and a standardised neurological examination 6 months post-injury. Parental reporting of pre- and post-injury behaviour was documented using the Child Behaviour Checklist (CBCL).

    RESULTS: Seven (24.1%) children with sCHI and three (10.3%) orthopaedic controls had residual motor deficits. Three (10.3%) children with sCHI and none in the other groups faced problems with independent ambulation. Twenty-seven (93.1%) of those with sCHI and all children in the other groups had GOS scores of good recovery or moderate disability. Twenty-two (81.5%) sCHI, five (18.5%) mCHI and one (3.7%) orthopaedic control reported a deterioration in school performance. MANOVAS identified a significant injury group effect for performance skills (P = 0.007), verbal skills (P = 0.002), memory and learning (P = 0.001) and motor skills (P = 0.001). Repeated measures ANOVA for pre- and post-injury CBCL scores showed significant differences related to somatic complaints (P = 0.004), problems of socialising (P = 0.003), delinquency (P = 0.004), aggressiveness (P = 0.010), thought (P < 0.001) and attention (P < 0.001). Post-hoc univariate analysis showed the significant differences were between that of the sCHI children and the other two groups.

    CONCLUSION: Although most sCHI children seemed to have made good physical recovery, there were cognitive, motor, memory and learning difficulties and behavioural problems concomitant with a deterioration in school performance compared with those with lesser or no head injury. This highlights the need for better integrated rehabilitation services to enable a gradual return into mainstream school.

  20. Lim TO, Lim YN, Wong HS, Ahmad G, Singam TS, Morad Z, et al.
    Med J Malaysia, 1999 Dec;54(4):459-70.
    PMID: 11072463
    We describe the outcomes on haemodialysis (HD) and continuous ambulatory peritoneal dialysis (CAPD) provided by the Ministry of Health (MOH). The assessment was based on data from the Malaysian Dialysis Registry on 2480 HD and 732 CAPD patients who commenced dialysis between 1980 and 1996. Young patients (age < 40) have remarkable long term survival (life expectancies of 16 years on HD, 18 years on CAPD). Adjusting for background mortality, relative survival of older patients was as good as younger ones. Diabetics did poorly. 52% of HD and 26% of CAPD patients were employed in 1996. 71% of HD patients scored 10(normal) on QL index (a measure of quality of life) while 60% of CAPD patients have similar score. Differences in rehabilitation and QL index scores by age, gender and diabetes were also observed. Outcomes of dialysis in the MOH programme are reassuring.
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links