1.Does Minimally Invasive Lumbar Spine Fusion Reduce Adjacent Segment Degeneration? A Matched-Pair Analysis With 8-Year Follow-up
Reuben Soh Chee CHEONG ; Yeow Boon TAN ; Wai Mun YUE ; Chang Ming GUO ; Seang Beng TAN ; William YEO ; Wongthawat LIAWRUNGRUEANG
Journal of Minimally Invasive Spine Surgery and Technique 2026;11(Suppl 1):S63-S70
Objective:
This study aimed to compare the long-term radiographic incidence of adjacent segment degeneration (ASD) following minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) versus open TLIF (O-TLIF) in a matched cohort, and to identify radiographic parameters associated with the development of kyphosis-type ASD.
Methods:
A retrospective matched-pair analysis was conducted involving 60 patients (30 MIS-TLIF and 30 O-TLIF) who underwent single-level TLIF between 2004 and 2009 and had a minimum follow-up of 8 years. Patients were matched for age (±3 years), sex, body mass index (±2 kg/m²), and operative level. Radiographic ASD was defined as greater than 50% disc-height loss, greater than 3 mm of listhesis, or greater than 10° of kyphotic change at the adjacent segment. Continuous variables were analyzed using independent-sample t-tests or Mann-Whitney U-tests, as appropriate, and categorical variables were analyzed using chi-square or Fisher exact tests, with statistical significance set at p<0.05.
Results:
The mean follow-up duration was 8.9±1.2 years. The MIS-TLIF group had a significantly shorter hospital stay than the O-TLIF group (3.4±1.7 days vs 6.0±2.3 days, p<0.001). Radiographic ASD occurred significantly less frequently in the MIS-TLIF group at 2 years (3.3% vs. 23.3%, p=0.023), but no significant difference was observed at ≥8 years of follow-up (43.3% vs. 50.0%, p=0.605). An increased Cobb angle at the superior adjacent level was significantly associated with kyphosis-type ASD (p=0.017). No demographic characteristics or preoperative magnetic resonance imaging parameters were found to predict ASD occurrence.
Conclusion
MIS-TLIF demonstrated an early radiographic advantage in reducing ASD compared with O-TLIF; however, this advantage diminished over time. Long-term ASD appears to be multifactorial, with sagittal imbalance playing a more prominent role in the progression of kyphosis-type ASD than the surgical approach itself.
2.Who succeeds in insulin deintensification? Real-world predictors and modifiable factors from primary care
Yee Theng Chong ; Mohammad Ashwad Muhd Zin ; Anisha K Nijar ; Nur Syellawathy Ahmad ; Mohd Khairi Mohd Noor ; Noorhazliza Abdul Patah ; Erleena Nur Hassan ; Izwan Effendy Ismai ; Najwa Aziz ; Min Chiee Leon ; Hui Ting Ng ; Khairatun Hisan Mohd Napiah ; Manothini A/P Perumal ; Shih Ling Selene Ng Shih Ling ; Ming Hui Liew ; Cha Chee Chong
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):4-
Introduction:
Insulin therapy is essential in the management of type 2 diabetes mellitus (T2DM), but is often associated with treatment
burden, hypoglycemia, and potential overtreatment. Insulin deintensification is increasingly recommended for
appropriately selected patients; however, there is limited real-world evidence to guide patient selection and to identify
modifiable factors that influence successful insulin deintensification. This study aimed to identify clinical predictors,
including modifiable factors, associated with successful insulin deintensification in a primary care setting.
Methodology:
A multicentre retrospective observational study was conducted across seven government primary care clinics in the Petaling
District. Adult patients with T2DM undergoing insulin deintensification were included. Successful insulin deintensification
was defined as maintenance or improvement of hemoglobin A1c following insulin discontinuation, dose reduction, or
reduction in injection frequency. Paired outcomes were analyzed using the Wilcoxon signed-rank test. Between-group
comparisons were performed using the Mann–Whitney U test and Chi-square or Fisher’s exact test. Multivariable logistic
regression was used to identify independent predictors of successful insulin deintensification.
Results:
A total of 261 patients were included. Glycemic control remained stable following insulin deintensification (p = 0.334).
Significant reductions in body weight (−0.41 kg, p = 0.012) and total daily insulin dose (23.1% reduction, p <0.001) were
observed. Univariate analysis did not demonstrate significant differences between groups. However, multivariable logistic
regression identified SGLT-2 inhibitor use (aOR 3.23, 95% CI 1.28–8.18, p = 0.013) and regular SMBG (aOR 2.00, 95% CI
1.05–3.81, p = 0.035) as independent predictors of successful insulin deintensification.
Conclusion
Insulin deintensification can be successfully implemented without compromising glycemic control. Identified predictors,
including modifiable factors such as SGLT-2 inhibitor use and SMBG, provide clinically actionable insights to guide patient
selection and treatment optimization. These findings challenge the traditional reluctance toward insulin deintensification
and support a more evidence-based and individualized approach in routine clinical practice.
Primary Health Care
;
Insulins
3.Pharmacogenomics in psychiatry: Practice recommendations from an Asian perspective (2024).
Shih Ee GOH ; Saumya Shekhar JAMUAR ; Siew Eng CHUA ; Derrick Chen Kuan YEO ; Jerome Hern Yee GOH ; Chee Hon CHIN ; Mohamed Zakir KARUVETIL ; Ee Lian LEE ; Daniel Shuen Sheng FUNG ; Giles Ming Yee TAN
Annals of the Academy of Medicine, Singapore 2024;53(12):734-741
INTRODUCTION:
Pharmacogenomic testing in psychiatry is an emerging area with potential clinical application of guiding medication choice and dosing. Interest has been fanned by commercial pharmacogenomic providers who have commonly marketed combinatorial panels that are direct-to-consumer. However, this has not been adopted widely due to a combination of barriers that include a varying evidence base, clinician and patient familiarity and acceptance, uncertainty about cost-effectiveness, and regulatory requirements. This review aims to examine recent updates in this field and provide a contextualised summary and recom-mendations for Asian populations in order to guide healthcare professionals in psychiatric practice.
METHOD:
A review of recent literature about current evidence and guidelines surrounding pharmacoge-nomics in psychiatric practice was carried out with particular attention paid to literature evaluating Asian populations. The Grading of Recommendations Assessment, Development and Evaluation Evidence to Decision framework was applied. Consensus meetings comprising workgroup psychiatrists from the public and private sectors were held prior to arriving at the key recommendations.
RESULTS:
Pharmacogenomic testing should be mainly limited to drug-gene pairs with established clinical evidence, such as antidepressants and CYP2C19/ CYP2D6. Direct-to-consumer pharmacogenomic panels that assay multiple genes and analyse them via proprietary algorithms, are not presently recommended in Singapore's psychiatric setting due to inconclusive evidence on clinical outcomes.
CONCLUSION
Pharmacogenomic testing in psychiatry is not recommended as standard clinical practice. Exceptions may include concerns about drug concentrations or potential severe adverse drug reactions. Studies investigating newly identified drug-gene associations, and clinical effectiveness and cost-effectiveness of utilising pharmacogenomic testing in psychiatry is encouraged.
Humans
;
Psychiatry/methods*
;
Pharmacogenetics
;
Cytochrome P-450 CYP2C19/genetics*
;
Asian People/genetics*
;
Pharmacogenomic Testing/methods*
;
Antidepressive Agents/therapeutic use*
;
Cytochrome P-450 CYP2D6/genetics*
;
Practice Guidelines as Topic
;
Singapore
;
Mental Disorders/genetics*
;
Psychotropic Drugs/therapeutic use*
5.Utility of combining PIVKA-II and AFP in the surveillance and monitoring of hepatocellular carcinoma in the Asia-Pacific region
Do Young KIM ; Bao Nguyen TOAN ; Chee-Kiat TAN ; Irsan HASAN ; Lyana SETIAWAN ; Ming-Lung YU ; Namiki IZUMI ; Nguyen Nguyen HUYEN ; Pierce Kah-Hoe CHOW ; Rosmawati MOHAMED ; Stephen Lam CHAN ; Tawesak TANWANDEE ; Teng-Yu LEE ; Thi Thanh Nguyen HAI ; Tian YANG ; Woo-Chang LEE ; Henry Lik Yuen CHAN
Clinical and Molecular Hepatology 2023;29(2):277-292
Even though the combined use of ultrasound (US) and alpha-fetoprotein (AFP) is recommended for the surveillance of hepatocellular carcinoma (HCC), the utilization of AFP has its challenges, including accuracy dependent on its cut-off levels, degree of liver necroinflammation, and etiology of liver disease. Though various studies have demonstrated the utility of protein induced by vitamin K absence II (PIVKA-II) in surveillance, treatment monitoring, and predicting recurrence, it is still not recommended as a routine biomarker test. A panel of 17 experts from Asia-Pacific, gathered to discuss and reach a consensus on the clinical usefulness and value of PIVKA-II for the surveillance and treatment monitoring of HCC, based on six predetermined statements. The experts agreed that PIVKA-II was valuable in the detection of HCC in AFP-negative patients, and could potentially benefit detection of early HCC in combination with AFP. PIVKA-II is clinically useful for monitoring curative and intra-arterial locoregional treatments, outcomes, and recurrence, and could potentially predict microvascular invasion risk and facilitate patient selection for liver transplant. However, combining PIVKA-II with US and AFP for HCC surveillance, including small HCC, still requires more evidence, whilst its role in detecting AFP-negative HCC will potentially increase as more patients are treated for hepatitis-related HCC. PIVKA-II in combination with AFP and US has a clinical role in the Asia-Pacific region for surveillance. However, implementation of PIVKA-II in the region will have some challenges, such as requiring standardization of cut-off values, its cost-effectiveness and improving awareness among healthcare providers.
6.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.
7.PREVALENCE OF KNEE PAIN AND ITS ASSOCIATED FACTORS AMONG SCHOOL TEACHERS IN SELANGOR, MALAYSIA
Eva Nabiha Zamri ; Victor Chee Wai Hoe ; Foong Ming Moy
Journal of University of Malaya Medical Centre 2022;25(SPECIAL ISSUE):9-15
Knee pain (KP) is commonly reported among workers, especially those in non-managerial occupations such as carpenters, miners and construction workers. However, few studies have been conducted on KP among the teacher population. Therefore, this study aimed to determine the prevalence of KP among school teachers and to explore its association with individual characteristics, lifestyle, work factors, and presence of health conditions. A cross-sectional survey was conducted among teachers at public secondary schools in Selangor, Malaysia. A self-reported questionnaire was utilised to elicit information on socio-demographic characteristics, lifestyle, body mass index, work-related factors, and health-related quality of life (HRQoL). Associations with KP were analysed by logistic regression and reported as odds ratios (ORs) at a 95% confidence interval (CI). The results revealed that the 12-month prevalence of KP was 54.4%. The multivariate analysis showed that age (OR 3.55, 95% CI: 1.92–6.54), kneeling or squatting >1 hour in total (OR 1.48, 95% CI: 1.06–2.08), and physical HRQoL (OR 0.94, 95% CI: 0.92–0.96) were significantly associated with the occurrence of KP. In conclusion, the prevalence of KP among secondary school teachers is high. Age, work-related physical practises, and physical health were found to be significantly associated with KP. Therefore, appropriate strategies should be implemented to address these factors in order to reduce the occurrence of KP, especially among the older teacher population.
Body mass index
8.Evaluation of a group family-based intervention programme for adolescent obesity: the LITE randomised controlled pilot trial.
Chu Shan Elaine CHEW ; Jean Yin OH ; Kumudhini RAJASEGARAN ; Seyed Ehsan SAFFARI ; Chee Ming Micheal LIM ; Siew Choo LIM ; Shiling TAN ; Siobhan KELLY
Singapore medical journal 2021;62(1):39-47
INTRODUCTION:
This study aimed to evaluate the LITE (Lifestyle Intervention for TEenagers) group programme, a family-based behavioural lifestyle intervention for overweight and obese adolescents.
METHODS:
We conducted a two-arm randomised controlled trial that recruited overweight and obese adolescents who attended a tertiary care weight management clinic. Participants were randomised to the LITE programme or usual care. The primary outcome assessed was body mass index (BMI) z-score. Secondary outcomes of anthropometric measurements, metabolic profile, parenting and adolescents' perception of family support were measured at baseline, three months and six months. Feasibility and acceptability of the LITE programme were also evaluated.
RESULTS:
61 adolescents were enrolled, with 31 in the LITE programme and 30 in usual care. At three months, participants in the programme had a greater reduction in weight (-0.18 ± 2.40 kg vs. 1.48 ± 1.97 kg; p = 0.107), waist circumference (-1.0 ± 3.1 cm vs. 2.4 ± 2.7 cm; p = 0.016), waist-height ratio (-0.01 ± 0.02 vs. 0.01 ± 0.02; p = 0.040) and systolic blood pressure (-3.8 ± 13.7 vs. 5.7 ± 13.1; p = 0.119) compared to the usual care group. There was no significant difference in BMI z-score. At six months, there were significant improvements in adolescents' perception of family support for eating habits in the LITE group compared to the usual care group. The LITE programme had a good attendance rate of 67.7% and was well received.
CONCLUSION
The LITE programme showed feasibility and short-term clinical effectiveness in improving some clinical outcomes and improved adolescents' perception of family support.
10.Lamotrigine-induced Stevens-Johnson syndrome and toxic epidermal necrolysis in Singapore: A case series.
Laura L Y HUI ; Celine LOKE ; Derrick C W AW ; Liesbet TAN ; Lie Michael George LIMENTA ; Meixin SHEN ; Ee Chee REN ; Dorothy S L TOH ; Edmund Jon Deoon LEE ; Shiu Ming PANG
Annals of the Academy of Medicine, Singapore 2021;50(12):915-918


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