Displaying publications 1 - 20 of 61 in total

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  1. Ong TC
    J Sports Sci, 1993 Feb;11(1):71-6.
    PMID: 8450589 DOI: 10.1080/02640419308729966
    The maximum oxygen consumption (VO2 max) of 421 healthy adult males from three ethnic groups (Chinese, Malay and Indian), aged 25-54 years, was assessed from direct analyses of their expired respiratory gases during all-out runs on a treadmill as a measure of aerobic fitness. The subjects were divided into three age groups: group 1, 25-34 years; group 2, 35-44 years; group 3, 45-54 years. Each group was further subdivided into non-exercisers (NE), non-regular exercisers (NRE) and regular exercisers (RE). Consistently within each age group, regular exercisers produced significantly higher VO2 max values compared to non-regular exercisers and non-exercisers. They also met the VO2 max requirements for heavy physical work and compared favourably with the standards of the National Physical Fitness Award of Singapore and Cooper's aerobic fitness classification standards based on North American males. Non-regular exercisers and non-exercisers only met the VO2 max requirements for moderate physical work and compared poorly in both of the aerobic fitness standards.
  2. Ong T, Sahota O
    Injury, 2021 Oct;52(10):2903-2907.
    PMID: 34247765 DOI: 10.1016/j.injury.2021.06.028
    INTRODUCTION: Patients that require hospital admission for vertebral fragility fractures were older, multimorbid, frail, have cognitive impairment and were in severe pain. This study aimed to describe the hospital treatment received in one UK university hospital with the purpose of proposing what hospital services should look like.

    METHOD: This was an observational study of adults aged 50 years and over admitted to hospital over 12 months with an acute vertebral fragility fracture. Information was collected from patients and electronic health records on their presentation and hospital care.

    RESULTS: 90 patients were recruited into the study. 69% presented to hospital 24 h after the onset of their severe acute back pain. 38% had a concomitant medical diagnosis, such as an ongoing infection. X-ray of the spine was the most common imaging of choice to diagnose a fracture. There was variation in the content of the radiology reports. 46% or patients were managed on geriatric medicine wards, 39% on general medical wards, and followed by 14% on spinal surgical wards. Patients cared for by medical teams were older, frailer, had a higher prevalence of cognitive impairment, more dependent for daily living and less mobile compared to those under the care of the spinal surgical team. Many patients on medical wards had input from spinal surgical team and vice versa. 9% proceeded to have vertebral augmentation. Despite many in severe pain, only a third were prescribed opioids with the median dose of morphine-equivalent was 10-20 mg daily for the first three days of admission. While in hospital, 31% developed a medical complication, with infection being the most common one. On discharge, 76% still required opioids and only 56% had a plan for their bone health.

    DISCUSSION: Improvements could be made to hospital vertebral fracture care. Many did not receive adequate pain relief and appropriate assessments to reduce their future fall and fracture risk. Most were medically managed. Quality standards and re-organising care in hip fracture has led to improved outcomes. A similar approach in vertebral fragility fractures might also deliver improved outcomes.

  3. Ong T, Vindlacheruvu M
    Age Ageing, 2023 Jun 01;52(6).
    PMID: 37389557 DOI: 10.1093/ageing/afad110
    The National Institute for Health and Care Excellence released its second update on hip fracture management in early 2023. First published in 2011, the last update was in 2017. The scope of this recent update focussed on surgical implants for hip fracture. This included recommendation to offer total hip replacements instead of hemiarthroplasty for displaced intracapsular hip fractures, and a move away from Orthopaedic Device Evaluation Panel rated implants to a more standardised consistent choice. Other recommendations such as the importance of multidisciplinary orthogeriatric care, early surgery and prompt mobilisation remain. As the literature surrounding hip fracture management continue to grow, guidance such as this needs to continue updating itself to ensure patients with hip fracture receive the best possible care.
  4. Ong T, Thiam CN
    Clin Med (Lond), 2022 Jul;22(4):295-297.
    PMID: 35882494 DOI: 10.7861/clinmed.CM-2022-0273
    Pain is common among older people. However, it remains underrecognised and under-treated. A comprehensive assessment of pain involves identifying its cause, establishing its severity, determining its impact on the person experiencing it and reviewing the person's response to treatment. Addressing their pain requires a different approach compared to a younger person because there is usually concomitant frailty, multimorbidity, polypharmacy, sensory deficits and cognitive impairment. This review will summarise a comprehensive approach to pain management in the older person.
  5. Chang KM, Ong TC
    Med J Malaysia, 2008 Sep;63 Suppl C:66-7.
    PMID: 19227675
    Treatment option of Haematological malignancies has expanded over the last decade. The outcome of treatment is expected to be better compare to previously. However, study of treatment outcome for haematological malignancies has not been carried out in Malaysia. The goal of this study is to measure the treatment outcome in patients with haematological malignancy.
  6. Ong TZ, Raymond AA
    Singapore Med J, 2002 Oct;43(10):517-21.
    PMID: 12587706
    Stroke is the third most common cause of death in Malaysia.The prevalence of risk factors and predictors of mortality of stroke in Malaysia are poorly understood.
  7. Paramsothy M, Khanijow V, Ong TO
    Singapore Med J, 1997 Aug;38(8):347-9.
    PMID: 9364890
    Malignant Otitis Externa (MOE) can cause considerable morbidity and mortality in affected individuals. The outlook is now much improved with the use of ciprofloxacin, but it is important to ascertain that the infection has been completely eradicated before stopping treatment, as undertreatment may lead to a recurrence which is usually more resistant than the initial infection. Gallium-67 Single Photon Emmision Computerised Tomography (SPECT) is a sensitive and cost effective tool in monitoring the disease activity of MOE, and should be used in the assessment of the response to antibiotic therapy.
  8. Abdul Aziz AF, Ong T
    Front Public Health, 2024;12:1326227.
    PMID: 38550314 DOI: 10.3389/fpubh.2024.1326227
    The COVID-19 pandemic has spotlighted the mental health crisis among employees worldwide. However, burnout research is often industry- or occupation-specific, and limited knowledge currently exists on the prevalence of burnout in the general working population of Southeast Asia. This study aims to examine the prevalence of employee burnout and its associated factors among working adults in Southeast Asia using secondary data. 4,338 full-time employees aged 18-65 years old living in Malaysia, Singapore, Philippines, and Indonesia were assessed for burnout, depression, anxiety, stress, and sociodemographic characteristics as part of an online public health assessment in October 2022. The prevalence of burnout in the region was 62.91%. Burnout was highest among employees in the Philippines (70.71%) and lowest in Malaysia (58.13%). Experiencing burnout was associated with severe or extremely severe depression (AOR = 6.48 [95% CI = 5.06-8.33]), anxiety (AOR = 2.22 [1.74-2.85]), and stress (AOR = 5.51 [4.13-7.39]). Working more than 50 hours a week (AOR = 1.38 [1.04-1.82]) and being very dissatisfied with the job led to higher odds of burnout (AOR = 16.46 [8.99-30.53]). Alarmingly, more than half of working adults in the region are reporting increased levels of burnout, and improving employee mental health and work conditions may be key to improving employee burnout in the region. Findings contribute to existing research on burnout prevalence in the region and provide more comprehensive insights into understanding the factors driving employee burnout in the working population of Southeast Asia 2 years after the onset of the pandemic.
  9. Leong AS, Wang F, Thomas V, Ong TH
    PMID: 1027097
    Two cases of acquired toxoplasmosis in asymptomatic Malaysian patients are described. In both instances the diagnosis was first made on the finding of the Piringer-Kuchinka reaction in excised lymph nodes from these patients and serological studies further confirmed the presence of hihg toxoplasmic antibody titres. The characteristic histological features of toxoplasmic lymphadenitis are discussed. Diagnosis and management of the disease are briefly reviewed with emphasis that the importance of diagnosing this disease goes beyond the establishment of a mostly self-limiting, clinically unimportant protozoan infection.
  10. Ong T, Sahota O, Gladman JRF
    Age Ageing, 2020 Oct 17.
    PMID: 33068103 DOI: 10.1093/ageing/afaa225
    INTRODUCTION: Acute vertebral fragility fracture requiring hospital admission is common, painful and disabling. No comprehensive clinical guideline for their care exists. To support the development of such a guideline, we sought the views of experts in the field.

    METHODS: A modified Delphi study was used. A total of 70 statements were presented, using an online platform, over three consensus-seeking rounds, to participants with experience in the hospital care of patients with acute vertebral fragility fractures from UK-based specialist societies. Participants rated the level of their agreement with each statement on a 5-point Likert scale. Consensus was defined at 70% of respondents choosing either agree/strongly agree or disagree/strong disagree. Over the first two rounds, statements not reaching consensus were modified in subsequent rounds, and new statements proposed by participants and agreed by the research team could be added.

    RESULTS: There were 71 participants in the first round, 37 in the second round and 28 (most of whom were geriatricians) in the third round. Consensus was reached in 52 statements covering fracture diagnosis, second-line imaging, organisation of hospital care, pain management and falls and bone health assessment. Consensus was not achieved for whether vertebral fragility fractures should be managed in a specific clinical area.

    DISCUSSION: These findings provide the basis for the development of clinical guidelines and quality improvement initiatives. They also help to justify research into the merits of managing acute vertebral fragility fracture patients in a specific clinical area.

  11. Ogliari G, Ong T, Marshall L, Sahota O
    Bone, 2021 Jun;147:115916.
    PMID: 33737194 DOI: 10.1016/j.bone.2021.115916
    PURPOSE: To investigate the monthly and seasonal variation in adult osteoporotic fragility fractures and the association with weather.

    METHODS: 12-year observational study of a UK Fracture Liaison Service (outpatient secondary care setting). Database analyses of the records of adult outpatients aged 50 years and older with fragility fractures. Weather data were obtained from the UK's national Meteorological Office. In the seasonality analyses, we tested for the association between months and seasons (determinants), respectively, and outpatient attendances, by analysis of variance (ANOVA) and Tukey's test. In the meteorological analyses, the determinants were mean temperature, mean daily maximum and minimum temperature, number of days of rain, total rainfall and number of days of frost, per month, respectively. We explored the association of each meteorological variable with outpatient attendances, by regression models.

    RESULTS: The Fracture Liaison Service recorded 25,454 fragility fractures. We found significant monthly and seasonal variation in attendances for fractures of the: radius or ulna; humerus; ankle, foot, tibia or fibula (ANOVA, all p-values <0.05). Fractures of the radius or ulna and humerus peaked in December and winter. Fractures of the ankle, foot, tibia or fibula peaked in July, August and summer. U-shaped associations were showed between each temperature parameter and fractures. Days of frost were directly associated with fractures of the radius or ulna (p-value <0.001) and humerus (p-value 0.002).

    CONCLUSION: Different types of fragility fractures present different seasonal patterns. Weather may modulate their seasonality and consequent healthcare utilisation.

  12. Heng HG, Ong TW, Hassan MD
    Vet Radiol Ultrasound, 2007 3 28;48(2):132-4.
    PMID: 17385370
    Hybrid tilapias (Oreochromis niloticus x O. mossambicus) were studied to determine gastric emptying and gastrointestinal transit time. The fish were divided into two groups. All fish were fasted for 12 h. The first experiment consisted of 11 fish fed with commercial food pellets and then administration of barium sulfate directly into the stomach using a blunt-end needle. Fish were then radiographed at different time intervals. The second experiment consisted of eight fish, which were given only barium sulfate after 12 h of fasting. In the first experiment, the stomach emptied completely, ranging from 4 to 15h postcontrast medium administration, whereas the gastrointestinal transit time ranged between 10 and 26 h. As for the second experiment, the contrast medium was still retained in the stomach in 50% of the fish after 24 h. The study did not proceed beyond 24 h as fish were considered stressed after this period of time. Thus, no data for the gastrointestinal transit time was obtained.
  13. Khoo A, Ho CK, Ong TK, Khairul A
    Singapore Med J, 1994 Dec;35(6):595-8.
    PMID: 7761883
    A descriptive study of 143 cases of clinically diagnosed measles in patients under the age of 12 years admitted to the Duchess of Kent Hospital, Sandakan, Sabah, during the year 1990 was carried out. The median age of the patients was one year and 13.3% of the cases were between the ages of 6 and 9 months. The male to female ratio was 1.3:1. The majority of the cases (85.3%) were not immunised against measles while 60.0% of the cases were malnourished. Most of the cases (86.0%) had at least one complication with 32.9% of the cases having more than one complications. The main complications were pneumonia (74.1%) and diarrhea (38.5%). Other complications were convulsions, otitis media and corneal ulceration/scarring. A case of pneumonia with mediastinal emphysema and subcutaneous emphysema was noted. The case fatality rate was 1.4% while blindness was the long term morbidity in 1.4% of the cases. Measles remains an important cause of morbidity in children in Sabah.
  14. Jesuthasan J, Low M, Ong T
    Front Digit Health, 2022;4:846375.
    PMID: 35574254 DOI: 10.3389/fdgth.2022.846375
    Digital healthcare has grown in popularity in recent years as a scalable solution to address increasing rates of mental illness among employees, but its clinical potential is limited by low engagement and adherence, particularly in open access interventions. Personalized guidance, involving structuring an intervention and tailoring it to the user to increase accountability and social support, is one way to increase engagement with digital health programs. This exploratory retrospective study therefore sought to examine the impact of guidance in the form of personalized prompts from a lay-person (i.e., non-health professional) on user's (N = 88) engagement with a 16-week Behavioral Intervention Technology targeting employee mental health and delivered through a mobile application. Chi-squared tests and Mann-Whitney tests were used to examine differences in retention and engagement between individuals who received personalized prompts throughout their 4-month program and individuals for whom personalized prompts were introduced in the seventh week of their program. There were no significant differences between the groups in the number of weeks they remained active in the app (personalized messages group Mdn = 3.5, IQR = 3; control group Mdn = 2.5, IQR = 4.5; p = 0.472). In the first 3 weeks of the intervention program, the proportion of individuals who explored the educational modules feature and the messaging with health coaches feature was also not significantly associated with group (ps = 1.000). The number of modules completed and number of messages sent to health coaches in the first 3 weeks did not differ significantly between the two groups (ps ≥ 0.311). These results suggest that guidance from a non-health professional is limited in its ability to increase engagement with an open access Behavioral Intervention Technology for employees. Moreover, the findings suggest that the formation of a relationship between the individual and the agent providing the guidance may be necessary in order for personalized guidance to increase engagement.
  15. Ong T, Yong BKA, Shouter T, Shahrokhi N, Sahota O
    Eur Geriatr Med, 2020 08;11(4):635-638.
    PMID: 32488688 DOI: 10.1007/s41999-020-00340-z
    PURPOSE: Patients with a hip fracture and co-existing advanced chronic kidney disease (CKD) are at risk of further fractures due to either CKD-mineral bone disease or osteoporosis.

    METHODS: An analysis of a hospital's hip fracture service registry of patients ≥ 60 years with CKD stage 4 (15-29 ml/min/1.73m2) or stage 5 (

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