1.Comprehensive characterization of genomic features and clinical outcomes following targeted therapy and secondary cytoreductive surgery in OCCC: a single center experience
Silvana Talisa WIJAYA ; Natalie YL NGOI ; Jerold WZ LOH ; Tuan Zea TAN ; Diana LIM ; Irfan Sagir KHAN ; Yee Liang THIAN ; Alexa LAI ; Bertrand WL ANG ; Pearl TONG ; Joseph NG ; Jeffrey JH LOW ; Arunachalam ILANCHERAN ; Siew Eng LIM ; Yi Wan LIM ; David SP TAN
Journal of Gynecologic Oncology 2024;35(5):e69-
Objective:
Ovarian clear cell carcinoma (OCCC) is associated with chemoresistance. Limited data exists regarding the efficacy of targeted therapies such as immune checkpoint inhibitors (ICI) and bevacizumab, and the role of secondary cytoreductive surgery (SCS).
Methods:
We retrospectively analyzed genomic features and treatment outcomes of 172 OCCC patients treated at our institution from January 2000 to May 2022. Next-generation sequencing (NGS) was performed where sufficient archival tissue was available.
Results:
64.0% of patients were diagnosed at an early stage, and 36.0% at an advanced stage.Patients with advanced/relapsed OCCC who received platinum-based chemotherapy plus bevacizumab followed by maintenance bevacizumab had a median first-line progressionfree survival (PFS) of 12.2 months, compared with 9.3 months for chemotherapy alone (hazard ratio=0.69; 95% confidence interval [CI]=0.33, 1.45). In 27 patients who received an ICI, the overall response rate was 18.5% and median duration of response was 7.4 months (95% CI=6.5, 8.3). In 17 carefully selected patients with fewer than 3 sites of relapse, median PFS was 35 months (95% CI=0, 73.5) and median overall survival was 96.8 months (95% CI=44.6, 149.0) after SCS. NGS on 58 tumors revealed common mutations in ARID1A (48.3%), PIK3CA (46.6%), and KRAS (20.7%). Pathogenic alterations in PIK3CA, FGFR2, and NBN were associated with worse survival outcomes. Median tumor mutational burden was 3.78 (range, 0–16). All 26 patients with available loss of heterozygosity (LOH) scores had LOH <16%.
Conclusion
Our study demonstrates encouraging outcomes with bevacizumab and ICI, and SCS in select relapsed OCCC patients. Prospective trials are warranted.
2.Comprehensive characterization of genomic features and clinical outcomes following targeted therapy and secondary cytoreductive surgery in OCCC: a single center experience
Silvana Talisa WIJAYA ; Natalie YL NGOI ; Jerold WZ LOH ; Tuan Zea TAN ; Diana LIM ; Irfan Sagir KHAN ; Yee Liang THIAN ; Alexa LAI ; Bertrand WL ANG ; Pearl TONG ; Joseph NG ; Jeffrey JH LOW ; Arunachalam ILANCHERAN ; Siew Eng LIM ; Yi Wan LIM ; David SP TAN
Journal of Gynecologic Oncology 2024;35(5):e69-
Objective:
Ovarian clear cell carcinoma (OCCC) is associated with chemoresistance. Limited data exists regarding the efficacy of targeted therapies such as immune checkpoint inhibitors (ICI) and bevacizumab, and the role of secondary cytoreductive surgery (SCS).
Methods:
We retrospectively analyzed genomic features and treatment outcomes of 172 OCCC patients treated at our institution from January 2000 to May 2022. Next-generation sequencing (NGS) was performed where sufficient archival tissue was available.
Results:
64.0% of patients were diagnosed at an early stage, and 36.0% at an advanced stage.Patients with advanced/relapsed OCCC who received platinum-based chemotherapy plus bevacizumab followed by maintenance bevacizumab had a median first-line progressionfree survival (PFS) of 12.2 months, compared with 9.3 months for chemotherapy alone (hazard ratio=0.69; 95% confidence interval [CI]=0.33, 1.45). In 27 patients who received an ICI, the overall response rate was 18.5% and median duration of response was 7.4 months (95% CI=6.5, 8.3). In 17 carefully selected patients with fewer than 3 sites of relapse, median PFS was 35 months (95% CI=0, 73.5) and median overall survival was 96.8 months (95% CI=44.6, 149.0) after SCS. NGS on 58 tumors revealed common mutations in ARID1A (48.3%), PIK3CA (46.6%), and KRAS (20.7%). Pathogenic alterations in PIK3CA, FGFR2, and NBN were associated with worse survival outcomes. Median tumor mutational burden was 3.78 (range, 0–16). All 26 patients with available loss of heterozygosity (LOH) scores had LOH <16%.
Conclusion
Our study demonstrates encouraging outcomes with bevacizumab and ICI, and SCS in select relapsed OCCC patients. Prospective trials are warranted.
3.Comprehensive characterization of genomic features and clinical outcomes following targeted therapy and secondary cytoreductive surgery in OCCC: a single center experience
Silvana Talisa WIJAYA ; Natalie YL NGOI ; Jerold WZ LOH ; Tuan Zea TAN ; Diana LIM ; Irfan Sagir KHAN ; Yee Liang THIAN ; Alexa LAI ; Bertrand WL ANG ; Pearl TONG ; Joseph NG ; Jeffrey JH LOW ; Arunachalam ILANCHERAN ; Siew Eng LIM ; Yi Wan LIM ; David SP TAN
Journal of Gynecologic Oncology 2024;35(5):e69-
Objective:
Ovarian clear cell carcinoma (OCCC) is associated with chemoresistance. Limited data exists regarding the efficacy of targeted therapies such as immune checkpoint inhibitors (ICI) and bevacizumab, and the role of secondary cytoreductive surgery (SCS).
Methods:
We retrospectively analyzed genomic features and treatment outcomes of 172 OCCC patients treated at our institution from January 2000 to May 2022. Next-generation sequencing (NGS) was performed where sufficient archival tissue was available.
Results:
64.0% of patients were diagnosed at an early stage, and 36.0% at an advanced stage.Patients with advanced/relapsed OCCC who received platinum-based chemotherapy plus bevacizumab followed by maintenance bevacizumab had a median first-line progressionfree survival (PFS) of 12.2 months, compared with 9.3 months for chemotherapy alone (hazard ratio=0.69; 95% confidence interval [CI]=0.33, 1.45). In 27 patients who received an ICI, the overall response rate was 18.5% and median duration of response was 7.4 months (95% CI=6.5, 8.3). In 17 carefully selected patients with fewer than 3 sites of relapse, median PFS was 35 months (95% CI=0, 73.5) and median overall survival was 96.8 months (95% CI=44.6, 149.0) after SCS. NGS on 58 tumors revealed common mutations in ARID1A (48.3%), PIK3CA (46.6%), and KRAS (20.7%). Pathogenic alterations in PIK3CA, FGFR2, and NBN were associated with worse survival outcomes. Median tumor mutational burden was 3.78 (range, 0–16). All 26 patients with available loss of heterozygosity (LOH) scores had LOH <16%.
Conclusion
Our study demonstrates encouraging outcomes with bevacizumab and ICI, and SCS in select relapsed OCCC patients. Prospective trials are warranted.
4.The impact of short-course total neoadjuvant therapy, long-course chemoradiotherapy, and upfront surgery on the technical difficulty of total mesorectal excision: an observational study with an intraoperative perspective
Cheryl Xi-Zi CHONG ; Frederick H. KOH ; Hui-Lin TAN ; Sharmini Su SIVARAJAH ; Jia-Lin NG ; Leonard Ming-Li HO ; Darius Kang-Lie AW ; Wen-Hsin KOO ; Shuting HAN ; Si-Lin KOO ; Connie Siew-Poh YIP ; Fu-Qiang WANG ; Fung-Joon FOO ; Winson Jianhong TAN
Annals of Coloproctology 2024;40(5):451-458
Purpose:
Total neoadjuvant therapy (TNT) is becoming the standard of care for locally advanced rectal cancer. However, surgery is deferred for months after completion, which may lead to fibrosis and increased surgical difficulty. The aim of this study was to assess whether TNT (TNT-RAPIDO) is associated with increased difficulty of total mesorectal excision (TME) compared with long-course chemoradiotherapy (LCRT) and upfront surgery.
Methods:
Twelve laparoscopic videos of low anterior resection with TME for rectal cancer were prospectively collected from January 2020 to October 2021, with 4 videos in each arm. Seven colorectal surgeons assessed the videos independently, graded the difficulty of TME using a visual analog scale and attempted to identify which category the videos belonged to.
Results:
The median age was 67 years, and 10 patients were male. The median interval to surgery from radiotherapy was 13 weeks in the LCRT group and 24 weeks in the TNT-RAPIDO group. There was no significant difference in the visual analog scale for difficulty in TME between the 3 groups (LCRT, 3.2; TNT-RAPIDO, 4.6; upfront, 4.1; P=0.12). A subgroup analysis showed similar difficulty between groups (LCRT 3.2 vs. TNT-RAPIDO 4.6, P=0.05; TNT-RAPIDO 4.6 vs. upfront 4.1, P=0.54). During video assessments, surgeons correctly identified the prior treatment modality in 42% of the cases. TNT-RAPIDO videos had the highest recognition rate (71%), significantly outperforming both LCRT (29%) and upfront surgery (25%, P=0.01).
Conclusion
TNT does not appear to increase the surgical difficulty of TME.
5.Anxiety, Depression and Stress Among Medical Students in Malaysia During COVID-19: A Cross-Sectional Study
Siew Mooi Ching ; Hani Salim ; Kai Wei Lee ; Fadzilah Mohamad1 , ; Irmi Zarina Ismail ; Malissa Syahira Jafri ; Thanesh Balasingam ; Aqilah Sharizal ; Jun Ying Ng ; Ngiap Chuan Tan
Malaysian Journal of Medicine and Health Sciences 2023;19(No.1):31-39
Introduction: This study aimed to determine the prevalence and factors associated with psychological distress following the COVID-19 pandemic among medical students at one of the public universities in Malaysia. Method:
From August to October 2020, a web-based cross-sectional study was conducted among undergraduate medical
students at a public university. DASS-21, Brief Resilience Scale and WHOQOL-Bref questionnaires were used in this
study. Results: The prevalence of depression was 40.5%, anxiety 46.0% and stress 30.9%. Based on multivariate
logistic regression, a higher quality of life score is associated with a lower likelihood of depression (AOR=0.583,
p<0.001), anxiety (AOR=0.726, p<0.001), and stress, (AOR=0.702, p<0.001) respectively. Likewise, a higher resilience score is less likely to be associated with depression (AOR=0.880, p=0.002), anxiety (AOR=0.880, p=0.002),
and stress (AOR=0.850, p<0.001). Older age (OR=0.700, p=0.020) was associated with less stress and being on
campus (OR=3.436, p=0.021) was at risk of stress during the COVID-19 pandemic. Conclusion: Our results suggest
that medical students with higher quality of life and resilience scores had less depression, anxiety and stress. Older
age was associated with less stress, and during the COVID-19 pandemic, being on campus was at risk of stress. Various stakeholders need to keep these findings in mind and identify those who are at risk for developing depression,
anxiety, and stress in order to take further action to improve their quality of life and resilience
6.Myorhythmia and Other Movement Disorders in Two Patients With Coronavirus Disease 2019 Encephalopathy
Rebecca Hui Min HOE ; Fan YANG ; Siew Kit SHUIT ; Glenn Khai Wern YONG ; Ser Hon PUAH ; Jennifer Sye Jin TING ; Mucheli Sharavan SADASIV ; Thirugnanam UMAPATHI
Journal of Movement Disorders 2023;16(2):217-220
7.A summary of the Malaysian Clinical Practice Guidelines on the management of postmenopausal osteoporosis, 2022
Terence Ing WEI ONG ; Lee Ling LIM ; Siew Pheng CHAN ; Winnie Siew SWEE CHEE ; Alan Swee HOCK CH’NG ; Elizabeth GAR MIT CHONG ; Premitha DAMODARAN ; Fen Lee HEW ; Luqman bin IBRAHIM ; Hui Min KHOR ; Pauline Siew MEI LAI ; Joon Kiong LEE ; Ai Lee LIM ; Boon Ping LIM ; Sharmila Sunita PARAMASIVAM ; Jeyakantha RATNASINGAM ; Yew Siong SIOW ; Alexander Tong BOON TAN ; Nagammai THIAGARAJAN ; Swan Sim YEAP
Osteoporosis and Sarcopenia 2023;9(2):60-69
Objectives:
The aim of these Clinical Practice Guidelines is to provide evidence-based recommendations to assist healthcare providers in the screening, diagnosis and management of patients with postmenopausal osteoporosis (OP).
Methods:
A list of key clinical questions on the assessment, diagnosis and treatment of OP was formulated. A literature search using the PubMed, Medline, Cochrane Databases of Systematic Reviews, and OVID electronic databases identified all relevant articles on OP based on the key clinical questions, from 2014 onwards, to update from the 2015 edition. The articles were graded using the SIGN50 format. For each statement, studies with the highest level of evidence were used to frame the recommendation.
Results:
This article summarizes the diagnostic and treatment pathways for postmenopausal OP. Risk stratification of patients with OP encompasses clinical risk factors, bone mineral density measurements and FRAX risk estimates. Non-pharmacological measures including adequate calcium and vitamin D, regular exercise and falls prevention are recommended. Pharmacological measures depend on patients’ fracture risk status. Very high-risk individuals are recommended for treatment with an anabolic agent, if available, followed by an anti-resorptive agent. Alternatively, parenteral anti-resorptive agents can be used. High-risk individuals should be treated with anti-resorptive agents. In low-risk individuals, menopausal hormone replacement or selective estrogen receptor modulators can be used, if indicated. Patients should be assessed regularly to monitor treatment response and treatment adjusted, as appropriate.
Conclusions
The pathways for the management of postmenopausal OP in Malaysia have been updated. Incorporation of fracture risk stratification can guide appropriate treatment.
8.Patient-reported outcome measures and value-based medicine in paediatrics: a timely review.
Yi Hua TAN ; Jia Xuan SIEW ; Biju THOMAS ; Kee Chong NG
Singapore medical journal 2023;64(5):285-293
Healthcare delivery is moving towards a more personalised and patient-centric approach. There is now an appropriate emphasis on providing value in our healthcare system. Patient-reported outcome measures (PROMs) assess our patients' perceptions of the status of their health and quality of life, measured over a period of time. PROM is an integral component of a value-driven and value-based healthcare system and is key if we want to practise value-based medicine. In paediatrics and child health, PROMs, if implemented well with appropriate measurement tools that are regularly updated and validated in a self-learning healthcare ecosystem, will help to enhance personalised healthcare delivery and collectively improve the health of the community at large. This review covers the role of PROMs in paediatrics, as well as their role in value-based medicine.
Humans
;
Child
;
Quality of Life
;
Ecosystem
;
Delivery of Health Care
;
Patient Reported Outcome Measures
;
Pediatrics
10.Immune and coagulation profiles in 3 adults with multisystem inflammatory syndrome.
Ruth Xian Lynn YAP ; Bernard Pui Lam LEUNG ; Hwee Siew HOWE ; Mung Ee LOH ; Barnaby Edward YOUNG ; Bingwen Eugene FAN ; Xin Rong LIM
Annals of the Academy of Medicine, Singapore 2023;52(2):80-87
INTRODUCTION:
There is a paucity of information on the cytokine, complement, endothelial activation, and coagulation profiles of multisystem inflammatory syndrome in adults (MIS-A), a rare but serious complication following recovery from SARS-CoV-2 infection. We aim to examine the immune biomarker and coagulation profiles in association with the clinical presentation and course of MIS-A.
METHOD:
The clinical features of MIS-A patients admitted to our tertiary hospital were documented. Their levels of interleukin (IL)-1β, IL-6, IL-10, IL-17, IL-18, interferon-α (IFN-α), IFN-γ, interferon gamma-induced protein 10 (IP-10), tumour necrosis factor (TNF)-α, monocyte chemoattractant protein (MCP)-1, complement activation product (complement 5a [C5a]), and endothelial biomarker intercellular adhesion molecule-1 (ICAM-1) levels were assayed. The haemostatic profile was assessed with standard coagulation testing and thromboelastography.
RESULTS:
Three male patients were diagnosed with MIS-A at our centre from January to June 2022 with a median age of 55 years. All had tested positive for SARS-CoV-2 12-62 days prior to MIS-A presentation, with gastrointestinal and cardiovascular systems as the most commonly involved. Levels of IL-6, IL-10, IL-18, IP-10 and MCP-1 were raised whereas IL-1β, IFN-α, IFN-γ, IL-17 and TNF-α remained normal. Markedly elevated levels of C-reactive protein (CRP), ferritin and ICAM-1 were present in all. C5a was elevated in 2 patients. A hypercoagulable state was demonstrated by raised levels of D-dimer, factor VIII, von Willebrand factor antigen, and ristocetin cofactor with corresponding raised parameters in thromboelastography in the 2 patients who had their coagulation profile assessed.
CONCLUSION
MIS-A patients demonstrate activation of pro-inflammatory cytokines, endotheliopathy, complement hyperactivation and hypercoagulability.
Humans
;
Adult
;
Male
;
Middle Aged
;
COVID-19/complications*
;
Interleukin-10
;
Interleukin-18
;
Intercellular Adhesion Molecule-1
;
Interleukin-17
;
Chemokine CXCL10
;
Interleukin-6
;
SARS-CoV-2
;
Connective Tissue Diseases
;
Hemostatics


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