Displaying publications 1 - 20 of 21 in total

Abstract:
Sort:
  1. Hss AS, Tan PS, Hashim L
    Int J Inj Contr Saf Promot, 2014;21(1):75-80.
    PMID: 23651461 DOI: 10.1080/17457300.2013.792284
    This study aimed to collate data on childhood drowning in Malaysia and review existing drowning prevention measures. This study used secondary data from governmental and non-governmental agencies. All reported fatal drownings from 2000 to 2007 and all reported non-fatal drownings from 2000 to 2008 were included. Data were analysed to provide understanding of the epidemiology of drowning incidents, risk factors and available preventive efforts. On average 286 (range 248-344) children died yearly due to drowning with a death rate of 3.05 per 100,000 annually. An additional average of 207 children drowned but survived annually (1.99 per 100,000). The estimated burden of drowning in children (death and non-death) is 5 per 100,000. There was no reduction in annual drowning fatalities over time. Most drowning took place in east coast regions during the annual monsoon season. It was 3.52 (2.80-4.41) times more common in boys and most prevalent among 10-14 years. Most prevalent sites of all-age drowning were seas and rivers. Limited water safety regulations are currently available in the country. This is the first comprehensive national study in Malaysia on paediatric drowning and highlights the magnitude of the problem. It calls for concerted effort to devise effective national drowning prevention measures.
  2. Chan YK, Zuraidah S, Tan PS
    Anaesthesia, 1998 Dec;53(12):1207-8.
    PMID: 10193227
    There was a delay in making the correct diagnosis of tracheal intubation in a parturient who developed severe bronchospasm after intubation because we relied on the capnogram.
  3. Tan PS, Genc F, Delgado E, Kellum JA, Pinsky MR
    Intensive Care Med, 2002 Aug;28(8):1064-72.
    PMID: 12185426
    We tested the hypothesis that NO contamination of hospital compressed air also improves PaO(2) in patients with acute lung injury (ALI) and following lung transplant (LTx).
  4. Tan P, Tohid H, Su X, Tan K, Azimah M, Khairani O
    Malays Fam Physician, 2012;7(1):11-5.
    PMID: 25606239 MyJurnal DOI: 10.4066/MFP.2012.1710
    BACKGROUND: Adolescent pregnancy has emerged to be a significant public health and social issue in Malaysia as its prevalence is increasing in our population.

    OBJECTIVES: This study aimed to identify the common characteristics of pregnant adolescents residing in a government shelter home. Their reasons for pregnancy, sources of information on contraception, and views on abortion and future care of the baby were explored.

    METHODS: A cross-sectional study was performed on 26 universally sampled pregnant adolescents in the centre. The adolescents responded to a set of self-administered questionnaire on their socio-demographic profiles, reasons of their pregnancy, contraception and future plans including abortion as well as care of the newborn.

    RESULTS: Almost all (92%) of the adolescents were unmarried. Majority of them were in late adolescence, age between 16 to 19 years (73.1%), from urban areas (73.1%) and of low income families (53.8%). There were 69.3% of the adolescents who were school dropouts. The reasons for pregnancy were consensual sexual activity (63.0%), coercion by boyfriend (18.5%), and rape (11.5%). The main sources of information on contraception were friends (50%), partners (50%) and the internet or mass media (42.3%). 54% had considered abortion earlier, but majority (92.0%) disagreed that abortion should be legalised in Malaysia. Most of the adolescents planned to parent their child with or without help from significant others and only 42.3% planned to relinquish their child for adoption.

    CONCLUSION: To curb teenage pregnancy-related problems, efforts on educating the adolescents about sexual reproductive health and assertive communication skills should be implemented, especially to the late adolescents, school dropouts and those from poor urban families. Parenthood support may be necessary to the pregnant adolescents who opted to care for their own child.

  5. Ramoo V, Abdullah KL, Tan PS, Wong LP, Chua PY
    Nurs Crit Care, 2016 Sep;21(5):287-94.
    PMID: 25271143 DOI: 10.1111/nicc.12105
    BACKGROUND: Sedation management is an integral component of critical care practice. It requires the greatest attention of critical care practitioners because it carries significant risks to patients. Therefore, it is imperative that nurses are aware of potential adverse consequences of sedation therapy and current sedation practice recommendations.

    AIMS AND OBJECTIVES: To evaluate the impact of an educational intervention on nurses' knowledge of sedation assessment and management.

    DESIGNS AND METHODS: A quasi-experimental design with a pre- and post-test method was used. The educational intervention included theoretical sessions on assessing and managing sedation and hands-on sedation assessment practice using the Richmond Agitation Sedation Scale. Its effect was measured using self-administered questionnaire, completed at the baseline level and 3 months following the intervention.

    RESULTS: Participants were 68 registered nurses from an intensive care unit of a teaching hospital in Malaysia. Significant increases in overall mean knowledge scores were observed from pre- to post-intervention phases (mean of 79·00 versus 102·00, p < 0·001). Nurses with fewer than 5 years of work experience, less than 26 years old, and with a only basic nursing education had significantly greater level of knowledge improvement at the post-intervention phase compared to other colleagues, with mean differences of 24·64 (p = 0·001), 23·81 (p = 0·027) and 27·25 (p = 0·0001), respectively. A repeated-measures analysis of variance revealed a statistically significant effect of educational intervention on knowledge score after controlling for age, years of work and level of nursing education (p = 0·0001, ηp (2) = 0·431).

    CONCLUSION: An educational intervention consisting of theoretical sessions and hands-on sedation assessment practice was found effective in improving nurses' knowledge and understanding of sedation management.

    RELEVANCE TO CLINICAL PRACTICE: This study highlighted the importance of continuing education to increase nurses' understanding of intensive care practices, which is vital for improving the quality of patient care.

  6. Ramoo V, Abdullah KL, Tan PS, Wong LP, Chua YP, Tang LY
    Nurs Crit Care, 2017 May;22(3):141-149.
    PMID: 25913373 DOI: 10.1111/nicc.12180
    BACKGROUND: Inappropriate sedation assessment can jeopardize patient comfort and safety. Therefore, nurses' abilities in assessing and managing sedation are vital for effective care of mechanically ventilated patients.

    AIMS AND OBJECTIVES: This study assessed nurses' sedation scoring and management abilities as primary outcomes following educational interventions. Nurses' perceived self-confidence and barriers to effective sedation management were assessed as secondary outcomes.

    DESIGN: A post-test-only quasi-experimental design was used. Data were collected at 3 and 9 months post-intervention.

    METHODS: A total of 66 nurses from a 14-bed intensive care unit of a Malaysian teaching hospital participated. The educational interventions included theoretical sessions, hands-on sedation assessment practice using the Richmond Agitation Sedation Scale, and a brief sedation assessment tool. Nurses' sedation scoring and management abilities and perceived self-confidence level were assessed at both time points using self-administered questionnaires with case scenarios. Sedation assessment and management barriers were assessed once at 9 months post-intervention.

    RESULTS: Median scores for overall accurate sedation scoring (9 months: 4·00; 3 months: 2·00, p = 0·0001) and overall sedation management (9 months: 14·0; 3 months: 7·0, p = 0·0001) were significantly higher at 9 months compared to 3 months post-intervention. There were no significant differences in the perceived self-confidence level for rating sedation level. Overall perceived barrier scores were low (M = 27·78, SD = 6·26, possible range = 11·0-55·0). Patient conditions (M = 3·68, SD = 1·13) and nurses' workload (M = 3·54, SD = 0·95) were the greatest barriers to effective sedation assessment and management. Demographic variables did not affect sedation scoring or management abilities.

    CONCLUSIONS: Positive changes in nurses' sedation assessment and management abilities were observed, indicating that adequate hands-on clinical practice following educational interventions can improve nurses' knowledge and skills.

    RELEVANCE TO CLINICAL PRACTICE: Educational initiatives are necessary to improve ICU practice, particularly in ICUs with inexperienced nurses.

  7. Tan PS, Akhavan Farid A, Karimzadeh A, Rahimian Koloor SS, Petrů M
    Materials (Basel), 2020 Sep 21;13(18).
    PMID: 32967330 DOI: 10.3390/ma13184199
    The curvature correction factor is an important parameter in the stress calculation formulation of a helical extension spring, which describes the effect of spring wire curvature on the stress increase towards its inner radius. In this study, the parameters affecting the curvature correction factor were investigated through theoretical and numerical methods. Several finite element (FE) models of an extension spring were generated to obtain the distribution of the tensile stress in the spring. In this investigation, the hook orientation and the number of coils of the extension spring showed significant effects on the curvature correction factor. These parameters were not considered in the theoretical model for the calculation of the curvature correction factor, causing a deviation between the results of the FE model and the theoretical approach. A set of equations is proposed for the curvature correction factor, which relates both the spring index and the number of coils. These equations can be applied directly to the design of extension springs with a higher safety factor.
  8. Chen YL, Shi L, Agbo F, Yong SH, Tan PS, Ngounou Wetie AG
    J Pharm Biomed Anal, 2020 Oct 25;190:113493.
    PMID: 32795778 DOI: 10.1016/j.jpba.2020.113493
    A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method has been developed and validated for the simultaneous quantification of apomorphine and its metabolites apomorphine sulfate and norapomorphine in human plasma for supporting clinical development of a novel apomorphine sublingual thin film (APL) for the treatment of Parkinson's disease. Analytes and internal standards (IS) were extracted from human plasma by Oasis HLB SPE cartridge, followed by a reversed phase LC-MS/MS analysis using multiple reaction monitoring (MRM) in positive mode (m/z 268 → 237 for apomorphine, 348 → 237 for apomorphine sulfate, and 348 → 237 for norapomorphine). Stable isotope-labeled compounds were used as IS for respective analytes. The validated curve ranges were 0.02-20 ng/mL, 10-1000 ng/mL, and 0.5-20 ng/mL for apomorphine, apomorphine sulfate and norapomorphine, respectively. Extraction recoveries were found to be 73.4 % (apomorphine), 81.1 % (apomorphine sulfate), and 58.6 % (norapomorphine). Established long-term plasma frozen storage stabilities were 504 days at -20 °C and276 days at -60 °C, respectively. The method has been successfully used for analyzing pharmacokinetics (PK) samples collected from a comparative bioavailability study of APL and the marketed apomorphine subcutaneous (s.c.) product Apo-go®. The results demonstrated that the 15-mg APL film administrated via sublingual produced comparable PK characteristics of apomorphine when compared to the commercial product Apo-go (2-mg) via s.c. administration, hence establishing the dose regimen for this sublingual formulation. It was also noticed that the sublingual 15-mg APL film produced a significantly higher apomorphine sulfate metabolite level than the 2-mg s.c. Apo-go, and both treatments yielded a negligible level of norapomorphine metabolite in humans.
  9. Su XV, Muhammad NA, Tan PS, Tan KTM, Tohid H, Omar K
    MyJurnal
    Teenage pregnancy carries serious impacts on adolescent health. This study aimed to examine the effects of pregnancy on adolescents and to explore how they cope with the problems they faced during the pregnancy. It involved 26 adolescents residing in a government shelter home in Kuala Lumpur. A self-administered questionnaire containing a mixture of open- and closed-ended questions was used. Among physical (sleeping problem and self-care problem), psychological (emotional difficulties and low self-efficacy) and social (stigma and discrimination, financial difficulty, friendship problem and school dropout) problems, emotional difficulties were the most common problems, whereas stigma and discrimination was the least common. Young adolescents aged less than 16 years old were significantly associated with poor self-care (p=0.01). To cope with their problems, the adolescents generally used avoidance, withdrawal, and social support, particularly from parents and peers. Doctors were the least popular among all. In conclusion, holistic and individualised care is needed. Strategies to reduce emotional problem experienced by pregnant adolescents should be implemented. The available healthcare services for teenage pregnancy should also be promoted.
  10. Tin TC, Chiew KL, Phang SC, Sze SN, Tan PS
    Comput Intell Neurosci, 2019;2019:8729367.
    PMID: 30719036 DOI: 10.1155/2019/8729367
    Preventive maintenance activities require a tool to be offline for long hour in order to perform the prescribed maintenance activities. Although preventive maintenance is crucial to ensure operational reliability and efficiency of the tool, long hour of preventive maintenance activities increases the cycle time of the semiconductor fabrication foundry (Fab). Therefore, this activity is usually performed when the incoming Work-in-Progress to the equipment is forecasted to be low. The current statistical forecasting approach has low accuracy because it lacks the ability to capture the time-dependent behavior of the Work-in-Progress. In this paper, we present a forecasting model that utilizes machine learning method to forecast the incoming Work-In-Progress. Specifically, our proposed model uses LSTM to forecast multistep ahead incoming Work-in-Progress prediction to an equipment group. The proposed model's prediction results were compared with the results of the current statistical forecasting method of the Fab. The experimental results demonstrated that the proposed model performed better than the statistical forecasting method in both hit rate and Pearson's correlation coefficient, r.
  11. Chin HH, Chin YH, Yap YL, Tan PS, Tiong XT, Noor Hidayah Y, et al.
    Med J Malaysia, 2021 11;76(6):845-852.
    PMID: 34806671
    INTRODUCTION: COVID-19 pandemic has affected healthcare services around the globe as hospitals were turned into designated hospitals to accommodate high risk groups of patients with COVID-19 infection including end stage kidney disease (ESKD) patients. In Malaysia, there was insufficient data on COVID-19 infection among ESKD patients. This study aims to determine factors and survival outcomes associated with COVID-19 infection among ESKD patients in a designated COVID-19 hospital in Malaysia.

    METHODS AND MATERIALS: A retrospective cross-sectional study involving 80 haemodialysis (HD) patients recruited from March 2020 till March 2021. Patients' information and results was retrieved and evaluated. Risk factors affecting the COVID-19 mortality were analysed using a one-way analysis of variance (ANOVA) and binary logistic regression.

    RESULTS: The mean age of the patients was 54 years who were predominantly Malays (87.5%) and living in rural areas. Majority of them had comorbidities such as diabetes mellitus (71%) and hypertension (90%). The most common presentations were fever (46%) and cough (54%) with chest radiographs showing bilateral lower zone ground glass opacities (45%). A quarter of the study population were admitted to the intensive care unit, necessitating mechanical ventilation. This study found that 51% of the patients were given steroids and 45% required oxygen supplementation. The COVID-19 infection mortality among the study population was 12.5%. Simple logistic regression analysis showed that albumin, Odd Ratio, OR=0.85 (95% Confidence Interval, 95%CI: 0.73, 0.98)) and absolute lymphocyte count OR=0.08 (95%CI: 0.11, 0.56) have inverse association with COVID-19 mortality. C-reactive protein OR=1.02 (95%CI: 1.01, 1.04), lactate dehydrogenase OR=1.01 (95%CI: 1.00, 1.01), mechanical ventilation OR=17.21 (95%CI: 3.03, 97.67) and high dose steroids OR=15.71 (95%CI: 1.80, 137.42) were directly associated with COVID-19 mortality.

    CONCLUSION: The high mortality rate among ESKD patients receiving HD was alarming. This warrants additional infection control measures to prevent the spread of COVID- 19 infection among this vulnerable group of patients. Expediting vaccination efforts in this group of patients should be advocated to reduce the incidence of complications from COVID-19 infection.

  12. Toh KW, Nadesan K, Sie MY, Vijeyasingam R, Tan PS
    Anesth Analg, 2004 Aug;99(2):350-2, table of contents.
    PMID: 15271703
    Arrhythmogenic right ventricular dysplasia is an inherited disease causing fatty replacement of heart tissue. This disease often presents as T-wave inversion in the anterior leads of the electrocardiogram (ECG) with life-threatening ventricular arrhythmias. In older patients, progressive right and left ventricular failure can develop. This is a case report of postoperative death occurring in a 59-yr-old woman with undiagnosed arrhythmogenic right ventricular dysplasia after hepatic cystectomy. The patient had T-wave inversion in the inferior ECG leads and no history of arrhythmias. During general anesthesia, cardiovascular collapse occurred in the absence of arrhythmias that was unresponsive to resuscitation.
  13. Chua KB, Goh KJ, Wong KT, Kamarulzaman A, Tan PS, Ksiazek TG, et al.
    Lancet, 1999 Oct 9;354(9186):1257-9.
    PMID: 10520635
    Between February and April, 1999, an outbreak of viral encephalitis occurred among pig-farmers in Malaysia. We report findings for the first three patients who died.
  14. Eng LG, Dawood S, Sopik V, Haaland B, Tan PS, Bhoo-Pathy N, et al.
    Breast Cancer Res Treat, 2016 11;160(1):145-152.
    PMID: 27628191
    PURPOSE: To evaluate breast cancer-specific survival at 10 years in patients who present with primary stage IV breast cancer, and to determine whether survival varies with age of diagnosis.

    METHODS: We retrieved the records of 25,323 women diagnosed with primary stage IV breast cancer in the surveillance, epidemiology, and end results 18 registries database from 1990 to 2012. For each case, we extracted information on age at diagnosis, tumour size, nodal status, oestrogen receptor status, progesterone receptor status, ethnicity, cause of death and date of death. The Cox proportional hazards model was used to estimate the unadjusted and adjusted hazard ratio (HR) of death due to stage IV breast cancer, according to age group.

    RESULTS: Among 25,323 women with stage IV breast cancer, 2542 (10.0 %) were diagnosed at age 40 or below, 5562 (22.0 %) were diagnosed between ages 41 and 50 and 17,219 (68.0 %) were diagnosed between ages 51 and 70. After a mean follow-up of 2.2 years, 16,387 (64.7 %) women died of breast cancer (median survival 2.3 years). The ten-year actuarial breast cancer-specific survival rate was 15.7 % for women ages 40 and below, 14.9 % for women ages 41-50 and 11.7 % for women ages 51 to 70 (p 

  15. Muhamad NA, Buang SN, Jaafar S, Jais R, Tan PS, Mustapha N, et al.
    BMC Public Health, 2018 Dec 22;18(1):1402.
    PMID: 30577816 DOI: 10.1186/s12889-018-6316-6
    BACKGROUND: In 2006, 4 years of planning was started by the Ministry of Health, Malaysia (MOH), to implement the HPV (human papillomavirus) vaccination programme. An inter-agency and multi-sectoral collaborations were developed for Malaysia's HPV school-based immunisation programme. It was approved for nationwide school base implementation for 13-year-old girls or first year secondary students in 2010. This paper examines how the various strategies used in the implementation over the last 7 years (2010-2016) that unique to Malaysia were successful in achieving optimal coverage of the target population.

    METHODS: Free vaccination was offered to school girls in secondary school (year seven) in Malaysia, which is usually at the age of 13 in the index year. All recipients of the HPV vaccine were identified through school enrolments obtained from education departments from each district in Malaysia. A total of 242,638 girls aged between 12 to 13 years studying in year seven were approached during the launch of the program in 2010. Approximately 230,000 girls in secondary schools were offered HPV vaccine per year by 646 school health teams throughout the country from 2010 to 2016.

    RESULTS: Parental consent for their daughters to receive HPV vaccination at school was very high at 96-98% per year of the programme. Of those who provided consent, over 99% received the first dose each year and 98-99% completed the course per year. Estimated population coverage for the full vaccine course, considering also those not in school, is estimated at 83 to 91% per year. Rates of adverse events reports following HPV vaccination were low at around 2 per 100,000 and the majority was injection site reactions.

    CONCLUSION: A multisectoral and integrated collaborative structure and process ensured that the Malaysia school-based HPV immunisation programme was successful and sustained through the programme design, planning, implementation and monitoring and evaluation. This is a critical factor contributing to the success and sustainability of the school-based HPV immunisation programme with very high coverage.

  16. Tan YM, Goh KL, Kamarulzaman A, Tan PS, Ranjeev P, Salem O, et al.
    Gastrointest Endosc, 2002 Feb;55(2):276-8.
    PMID: 11818941
  17. Chow SK, Yap DFS, Sim JH, Tan PS, Hee NKY, Teow XM, et al.
    Med J Malaysia, 2023 Dec;78(7):907-913.
    PMID: 38159927
    INTRODUCTION: This study aimed to determine the prevalence and association between the severity of COVID-19 and short and long-term neuropsychiatric symptoms, as well as the risk factors for the development of these symptoms.

    MATERIALS AND METHODS: A prospective observational study was conducted between 1st October 2021 till September 2022 in the state of Johor, Malaysia. 300 patients with confirmed SARS-CoV-2 infection were randomly selected and followed up for six months. Data were analysed by using Chi-square test, Fisher's Exact test, Paired t test and Multiple logistic regression.

    RESULTS: The prevalence of short-term neuropsychiatric symptoms was 78%, with anosmia being the most prevalent symptom. Long-term symptoms were found in 22.75% of patients, with headache being the most prevalent (p= 0.001). COVID-19 Stage 2 and 3 infections were associated with a higher risk of short-term neuropsychiatric symptoms, OR for Stage 2 infection was 5.18 (95% CI: 1.48-16.97; p=0.009) and for Stage 3 infection was 4.52 (95% CI: 1.76-11.59; p=0.002). Complete vaccination was a significant predictor of longterm symptoms with adjusted OR 3.65 (95% CI 1.22-10.91; p=0.021).

    CONCLUSION: This study demonstrated that neuropsychiatric symptoms were common among COVID-19 patients in Johor, Malaysia and the risk of these symptoms was associated with the severity of the infection. Additionally, complete vaccination does not completely protect against long-term neuropsychiatric deficits. This is crucial for continuous monitoring and addressing neuropsychiatric symptoms in COVID-19 survivors.

  18. Goh KJ, Tan CT, Chew NK, Tan PS, Kamarulzaman A, Sarji SA, et al.
    N Engl J Med, 2000 Apr 27;342(17):1229-35.
    PMID: 10781618 DOI: 10.1056/NEJM200004273421701
    BACKGROUND: Between September 1998 and June 1999, there was an outbreak of severe viral encephalitis due to Nipah virus, a newly discovered paramyxovirus, in Malaysia.
    METHODS: We studied the clinical features of the patients with Nipah virus encephalitis who were admitted to a medical center in Kuala Lumpur. The case definition was based on epidemiologic, clinical, cerebrospinal fluid, and neuroimaging findings.
    RESULTS: Ninety-four patients with Nipah virus infection were seen from February to June 1999 (mean age, 37 years; ratio of male patients to female patients, 4.5 to 1). Ninety-three percent had had direct contact with pigs, usually in the two weeks before the onset of illness, suggesting that there was direct viral transmission from pigs to humans and a short incubation period. The main presenting features were fever, headache, dizziness, and vomiting. Fifty-two patients (55 percent) had a reduced level of consciousness and prominent brain-stem dysfunction. Distinctive clinical signs included segmental myoclonus, areflexia and hypotonia, hypertension, and tachycardia and thus suggest the involvement of the brain stem and the upper cervical spinal cord. The initial cerebrospinal fluid findings were abnormal in 75 percent of patients. Antibodies against Hendra virus were detected in serum or cerebrospinal fluid in 76 percent of 83 patients tested. Thirty patients (32 percent) died after rapid deterioration in their condition. An abnormal doll's-eye reflex and tachycardia were factors associated with a poor prognosis. Death was probably due to severe brain-stem involvement. Neurologic relapse occurred after initially mild disease in three patients. Fifty patients (53 percent) recovered fully, and 14 (15 percent) had persistent neurologic deficits.
    CONCLUSIONS: Nipah virus causes a severe, rapidly progressive encephalitis with a high mortality rate and features that suggest involvement of the brain stem. The infection is associated with recent contact with pigs.
  19. Tan SY, Chen TP, Lee SH, Tan PS, Chua CT, Teo SM, et al.
    Transplant Proc, 2000 Nov;32(7):1811-2.
    PMID: 11119947
Related Terms
Filters
Contact Us

Please provide feedback to Administrator ([email protected])

External Links