3.Validating lactate dehydrogenase (LDH) as a component of the PLASMIC predictive tool (PLASMIC-LDH)
Christopher Chin KEONG LIAM ; Jim Yu-Hsiang TIAO ; Yee Yee YAP ; Yi Lin LEE ; Jameela SATHAR ; Simon MCRAE ; Amanda DAVIS ; Jennifer CURNOW ; Robert BIRD ; Philip CHOI ; Pantep ANGCHAISUKSIRI ; Sim Leng TIEN ; Joyce Ching MEI LAM ; Doyeun OH ; Jin Seok KIM ; Sung-Soo YOON ; Raymond Siu-Ming WONG ; Carolyn LAUREN ; Eileen Grace MERRIMAN ; Anoop ENJETI ; Mark SMITH ; Ross Ian BAKER
Blood Research 2023;58(1):36-41
Background:
The PLASMIC score is a convenient tool for predicting ADAMTS13 activity of <10%.Lactate dehydrogenase (LDH) is widely used as a marker of haemolysis in thrombotic thrombocytopenic purpura (TTP) monitoring, and could be used as a replacement marker for lysis. We aimed to validate the PLASMIC score in a multi-centre Asia Pacific region, and to explore whether LDH could be used as a replacement marker for lysis.
Methods:
Records of patients with thrombotic microangiopathy (TMA) were reviewed. Patients’ ADAMTS13 activity levels were obtained, along with clinical/laboratory findings relevant to the PLASMIC score. Both PLASMIC scores and PLASMIC-LDH scores, in which LDH replaced traditional lysis markers, were calculated. We generated a receiver operator characteristics (ROC) curve and compared the area under the curve values (AUC) to determine the predictive ability of each score.
Results:
46 patients fulfilled the inclusion criteria, of which 34 had ADAMTS13 activity levels of <10%. When the patients were divided into intermediate-to-high risk (scores 5‒7) and low risk (scores 0‒4), the PLASMIC score showed a sensitivity of 97.1% and specificity of 58.3%, with a positive predictive value (PPV) of 86.8% and negative predictive value (NPV) of 87.5%. The PLASMIC-LDH score had a sensitivity of 97.1% and specificity of 33.3%, with a PPV of 80.5% and NPV of 80.0%.
Conclusion
Our study validated the utility of the PLASMIC score, and demonstrated PLASMIC-LDH as a reasonable alternative in the absence of traditional lysis markers, to help identify high-risk patients for treatment via plasma exchange.
4.Coronary Intravascular Lithotripsy Versus Rotational Atherectomy in an Asian Population: Clinical Outcomes in Real-World Patients
Jie Jun WONG ; Sridharan UMAPATHY ; Yann Shan KEH ; Yee How LAU ; Jonathan YAP ; Muhammad IDU ; Chee Yang CHIN ; Jiang Ming FAM ; Boon Wah LIEW ; Chee Tang CHIN ; Philip En Hou WONG ; Tian Hai KOH ; Khung Keong YEO
Korean Circulation Journal 2022;52(4):288-300
Background and Objectives:
We compared real-world clinical outcomes of patients receiving intravascular lithotripsy (IVL) versus rotational atherectomy (RA) for heavily calcified coronary lesions.
Methods:
Fifty-three patients who received IVL from January 2017 to July 2020 were retrospectively compared to 271 patients who received RA from January 2017 to December 2018.Primary endpoints were in-hospital and 30-day major adverse cardiovascular events (MACE).
Results:
IVL patients had a higher prevalence of acute coronary syndrome (56.6% vs 24.4, p<0.001), multivessel disease (96.2% vs 73.3%, p<0.001) and emergency procedures (17.0% vs 2.2%, p<0.001) compared to RA. In-hospital MACE (11.3% vs 5.9%, p=0.152), MI (7.5% vs 3.3%, p=0.152), and mortality (5.7% vs 3.0%, p=0.319) were not statistically significant. 30-day MACE was higher in the IVL cohort vs RA (17.0% vs 7.4%, p=0.035). Propensity score adjusted regression using IVL was also performed on in-hospital MACE (odds ratio [OR], 1.677; 95% confidence interval [CI], 0.588–4.779) and 30-day MACE (OR, 1.910; 95% CI, 0.774–4.718).
Conclusions
These findings represent our initial IVL experience in a high-risk, real-world cohort. Although the event rate in the IVL arm was numerically higher compared to RA, the small numbers and retrospective nature of this study preclude definitive conclusions. Theseclinical outcomes are likely to improve with greater experience and better case selection, allowing IVL to effectively treat complex calcified coronary lesions.
5.The Role Of GPs In Supporting Caregivers Of Persons With Dementia In Singapore
Dennis Chuen Chai Seow ; Philip Lin Kia Yap
The Singapore Family Physician 2021;47(4):28-34
Caregiver interventions have been shown to reduce caregiver depression, the burden of care, and improve their health and quality of life. Caregiver support also benefits the person with
dementia (PWD). It is important to recognise that caregivers need caring too. Caregivers of PWD are usually middle-aged daughters and sons followed by spouses. Foreign domestic
helpers also play a pivotal role in Singapore. Stressors arising from caregiving change at different stages of the disease. As the disease progresses into the advanced stages, stress from dealing with behavioural problems can lessen as the burden from coping with physical and functional impairments increases. For this reason, caregiver interventions should be stage appropriate. There is a need to create a positive experience in the GP consultation with the important elements of early diagnosis, providing stage specific information and interventions, and up-to-date information on dementia resources available in the community. The role of the GP in supporting the caregiver is more important than ever amid the current COVID-19 pandemic.
6.THE ROLE OF GENERAL PRACTITIONERS IN HELPING CAREGIVERS OF PERSONS WITH DEMENTIA
Dennis Chuen Chai Seow ; Philip Lin Kiat Yap
The Singapore Family Physician 2019;45(5):28-33
Caregiver interventions have been shown to reduce caregiver depression, burden of care, and improve their health and quality of life. Caregiver support also benefits the person with dementia (PWD). It is important to recognise that caregivers too, need care. Caregivers of PWD are usually middle-aged daughters and sons followed by spouses. Foreign domestic workers also play a pivotal role in Singapore. Stressors arising from caregiving change at different stages of the disease. As the disease progresses into the advanced stages, stress from having to deal with behavioural problems can lessen as the burden from coping with functional impairments increases. For this reason, caregiver interventions should be stage appropriate. There is a need to work towards creating a positive experience in the GP consultation with the important elements of early diagnosis, providing stage specific information and interventions, and up-to-date information on dementia resources available in the community
7.Factors associated with prolonged length of stay in older patients.
Hui Jin TOH ; Zhen Yu LIM ; Philip YAP ; Terence TANG
Singapore medical journal 2017;58(3):134-138
INTRODUCTIONProlonged stay in acute hospitals increases the risk of hospital-acquired infections in older patients, and disrupts patient flow and access to care due to bed shortages. We aimed to investigate the factors associated with prolonged length of stay (pLOS) among older patients (aged ≥ 78 years) in a tertiary hospital, to identify the potentially modifiable risk factors that could direct interventions to reduce length of stay (LOS).
METHODSDuring a three-month period from January 2013 to March 2013, we identified 72 patients with pLOS (LOS ≥ 21 days) and compared their demographic and clinical variables with that of 281 randomly selected control patients (LOS < 21 days) using univariate and multivariate logistic regression analyses.
RESULTSThe mean age of the patients was 85.30 ± 5.34 years; 54% of them were female and 72% were of Chinese ethnicity. Logistic regression revealed the following significant factors for increased LOS: discharge to intermediate and long-term care services (odds ratio [OR] 9.22, 95% confidence interval [CI] 3.56-23.89; p < 0.001); increased severity of illness (OR 2.41, 95% CI 1.12-5.21; p = 0.025); and presence of caregiver stress (OR 3.85, 95% CI 1.67-8.91; p = 0.002).
CONCLUSIONPresence of caregiver stress and nursing home placement are potential modifiable risk factors of pLOS among older patients. Early identification and management of caregiver stress, as well as expediting discharge planning, may help to reduce the length of stay for this cohort.
Aged ; Aged, 80 and over ; Caregivers ; Cross Infection ; epidemiology ; Female ; Health Services Accessibility ; Humans ; Length of Stay ; Male ; Random Allocation ; Regression Analysis ; Risk Factors ; Severity of Illness Index ; Singapore ; Social Class ; Stress, Psychological ; Tertiary Care Centers
9.A moral price for medicine.
Gabriel WONG ; Lawrence TAN ; Philip YAP
Singapore medical journal 2015;56(7):363-365
10.Changing landscape of nursing homes in Singapore: challenges in the 21st century.
Gabriel H Z WONG ; Philip L K YAP ; Weng Sun PANG
Annals of the Academy of Medicine, Singapore 2014;43(1):44-50
The ageing population is posing new challenges to Singapore's healthcare system. The rise of dual income and the decline of extended families, as well as an increase in age-related degenerative disorders due to increased longevity render it difficult for the family to remain the primary social safety net to care for our elderly in their own homes. Consequently, nursing homes may become increasingly relevant for resource and expertise-challenged families to cope with the burden of caring for a frail and dependent elderly. However, as the recent Nightingale Nursing Home elderly mistreatment incident attests, the standards of some have been found wanting. This paper will trace the history of nursing homes in Singapore and the evolution of government policies towards them, discuss the challenges and trade-offs of nursing home regulation, and provide suggestions for better care and governance.
Aged
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Forecasting
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Guidelines as Topic
;
History, 20th Century
;
History, 21st Century
;
Humans
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Nursing Homes
;
history
;
legislation & jurisprudence
;
standards
;
trends
;
Singapore


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