1.The impact of Anchor, a home visitation programme for maltreated children, on child developmental and behavioural outcomes.
Shi Hua CHAN ; Jean Yin OH ; Li Ming ONG ; Wen Hann CHOW ; Oh Moh CHAY ; Salam SOLIMAN ; Lourdes Mary DANIEL ; Pratibha AGARWAL ; Charmain Samantha TAN ; Jun Lin SAI ; Joanne Ferriol ESPECKERMAN ; Rehena SULTANA ; Cong Jin Wilson LOW ; Sita Padmini YELESWARAPU
Annals of the Academy of Medicine, Singapore 2025;54(4):208-218
INTRODUCTION:
Adverse childhood experiences (ACEs) are associated with significant long-term impacts, yet few interventions specifically target ACE exposure, especially in Asian populations. Anchor, Singapore's first home visitation programme, addresses maltreat-ment among preschool children. This study evaluated Anchor's impact on children's developmental and behavioural outcomes.
METHOD:
We conducted a prospective evaluation of children under 4 years assessed for maltreatment from November 2019 to July 2023. Developmental and behavioural progress was measured every 6 months using the Ages and Stages Questionnaires (ASQ-3) and ASQ:Social-Emotional (ASQ:SE-2), and annually using the Child Behaviour Checklist (CBCL).
RESULTS:
The results of 125 children (mean age 20.0 months, 48% female) were analysed. The mean length of stay in programme was 21.2 (7.3) months. At baseline, 92 (73.6%) children were at risk of develop-mental delay and 25 (31.7%) children aged ≥18 months had behavioural concerns. The programme was associated with significant improvements in gross motor (P=0.002) and fine motor (P=0.001) domains of the ASQ-3 and internalising problem scale (P=0.001) of the CBCL.
CONCLUSION
Anchor effectively enhances develop-mental and behavioural outcomes for children exposed to maltreatment. Targeted early intervention through such programmes can mitigate adverse impacts, optimising developmental trajectories and potentially reducing the long-term clinical and economic burdens associated with ACEs.
Humans
;
Female
;
Male
;
Child Abuse/therapy*
;
Child, Preschool
;
Singapore
;
House Calls
;
Infant
;
Prospective Studies
;
Child Development
;
Developmental Disabilities/epidemiology*
;
Program Evaluation
;
Child Behavior Disorders
;
Child Behavior
2.Pregnancy-associated breast cancer: Management of the mother, fetus and tumour.
Andrea TAN ; Weining WANG ; Cheryl LONG ; Zewen ZHANG ; Joanne NGEOW ; Citra MATTAR
Annals of the Academy of Medicine, Singapore 2025;54(4):235-246
INTRODUCTION:
Pregnancy-associated breast cancer (PABC) is described as breast cancer diagnosed within pregnancy or within 1 year postpartum. PABC is becoming more common due to delayed childbearing, with older maternal age increasing the likelihood of tumorigenesis coinciding with pregnancy. Our review aims to outline the important principles of managing PABC, and discusses future fertility implications, genetic testing and postnatal considera-tions that are not often considered in other existing reviews.
METHOD:
A literature search was conducted using PubMed, Cochrane and Google Scholar databases.
RESULTS:
A persistent breast mass in pregnant women should be evaluated with a breast ultrasound. Total mastectomy is the standard treatment in the first trimester. Chemotherapy is contraindicated in the first trimesters, but can be given in the second and third trimester, and stopped before 35 weeks. Radiotherapy should be delayed until delivery, and hormone receptor therapy is contraindicated in pregnancy. A multidisciplinary team involving an obstetrician, medical oncologist and other allied health professionals is crucial. Delivery should be planned as close to 37 weeks as possible, and at least 3 weeks after the last chemotherapy cycle. Vaginal delivery is preferred, and breastfeeding can resume 14 days after the last chemotherapy regime.
CONCLUSION
A breast mass in a pregnant woman should not be dismissed. PABC must be managed by multidisciplinary teams at tertiary medical centres with access to surgery and chemoradiation therapies. Management strategies must include safe manage-ment and delivery of the fetus, contraception and future fertility planning.
Humans
;
Female
;
Pregnancy
;
Breast Neoplasms/diagnosis*
;
Pregnancy Complications, Neoplastic/diagnosis*
;
Mastectomy
;
Delivery, Obstetric
3.Risk-based screening programmes for cancer diagnosis: A systematic review with narrative synthesis.
Yong Yi TAN ; Sara TASNIM ; Mohammad Fahmy Bin FADZIL ; Xin Rong NG ; Sabrina Kw WONG ; Jo-Anne Elizabeth MANSKI-NANKERVIS ; Joseph Jao-Yiu SUNG ; Joanne NGEOW
Annals of the Academy of Medicine, Singapore 2025;54(10):644-663
INTRODUCTION:
Risk-based screening (RBS) has emerged as a promising alternative to age-based cancer screening. However, evidence regarding real-world implementation outcomes remains fragmented. Thus, a systematic review was conducted to evaluate the implementation metho-dologies and outcomes of RBS programmes across different cancer types.
METHODS:
MEDLINE, Embase, CINAHL, Web of Science, Cochrane Central Register of Controlled Trials and Scopus were systematically searched from their respective dates of inception up to 8 July 2024. Prospective and rando-mised controlled trials (RCTs), which implement the RBS of cancer in an asymptomatic population, or studies retrospectively evaluating the outcomes of the same were included. Geographic distribution, population characteristics, RBS methodology, diagnostic accuracy and clinical outcomes were narratively synthesised.
RESULTS:
Among the 33 included studies (i.e. 21 prospective cohort, 8 RCTs, 3 retrospective and 1 non-RCT), sample sizes ranged from 102 to 1,429,890 participants. Most RBS trials were conducted in China (n=7, 21.2%), followed by the Netherlands (n=4, 12.1%) then the US, Australia and Sweden (n=3, 9.8%). Studies predominantly examined colorectal (27.3%), breast (21.2%) and prostate cancer (18.2%). Three main stratification approaches emerged: algorithmic (48.5%), validated risk models (39.4%) and physician assessment (9.1%). Implementation outcomes showed higher uptake in moderate-risk (75.4%) compared to high-risk (71.3%) and low-risk groups (67.9%). Five studies demonstrated cost-effectiveness with increased quality-adjusted life years, while 12 studies showed superior or non-inferior cancer detection rates compared to traditional screening.
CONCLUSION
The RBS of cancer has the potential to optimise healthcare resource allocation while minimising harm and increasing receptiveness for patients. More work is needed to evaluate long-term outcomes prior to the scaling of RBS programmes.
Humans
;
Early Detection of Cancer/methods*
;
Neoplasms/diagnosis*
;
Risk Assessment
;
Mass Screening/methods*
4.Effect of Garcinia binucao crude leaf extract supplementation on lifespan of Drosophila melanogaster chronically exposed to alcohol
Joanne Jennifer E. Tan ; Ourlad Alzeus G. Tantengco ; Nicholas Robert C. Tan ; Clyde E. Silverio ; Ana Denise V. Sison ; Joseph P. Sta. Maria Jr. ; Karol Ina G. Tablante ; Joyce Gillian A. Tiam-Lee ; Maria Concepcion C. Sison ; Paul Mark B. Medina
Acta Medica Philippina 2024;58(5):52-56
Background:
Consumption and abuse of alcohol remains a significant cause of concern worldwide. Furthermore, there is evidence of the association between chronic alcohol use and reduced life expectancy.
Objectives:
To study the effects of Garcinia binucao extract (GBE) supplementation on lifespan of Drosophila
melanogaster, in the presence or absence of chronic alcohol exposure.
Methods:
D. melanogaster was mass cultured and given GBE supplementation in high (1 mg/mL) and low (200 µg/mL) sublethal doses. D. melanogaster flies were divided into groups - with and without chronic alcohol exposure, and their respective lifespans were monitored.
Results:
In D. melanogaster without alcohol exposure, mean lifespan was highest in the control flies (38.15 days), followed by high-dose GBE (34.42 days), low-dose GBE (33.24 days), and DMSO (22.29 days). In D. melanogaster chronically exposed to alcohol, the longest mean lifespan was observed in flies treated with high-dose GBE (33.80 days), followed by low-dose GBE (33.63 days), the DMSO group (30.30), and the control group (29.65 days), but the differences were not statistically significant. Comparing groups with and without chronic alcohol exposure, the mean lifespan of the control group chronically exposed to alcohol significantly decreased by 9.51 days (p < 0.05). In GBE treatment groups, mean lifespan significantly decreased by 0.82 days in high-dose set-up (p < 0.05), and significantly increased by 0.39 days in the low-dose set-up (p < 0.05) upon chronic alcohol exposure.
Conclusion
Garcinia binucao extract supplementation ameliorated the observed reduction in lifespan of Drosophila melanogaster chronically exposed to alcohol.
Drosophila melanogaster
;
Longevity
5.Long-term survival and clinical implications of allogeneic stem cell transplantation in relapse/refractory lymphoma: A 20-year Singapore experience.
Wei Sheng Joshua LOKE ; Jean Rachel CATAPIA ; Chay Lee LOW ; Francesca LIM ; Jeffrey QUEK ; Hein THAN ; Yeow Tee GOH ; Yeh Ching LINN ; Colin Phipps DIONG ; Aloysius HO ; William HWANG ; Chung Cheng Jordan HWANG ; Aditi GHOSH ; Liang Pui KOH ; Lip Koon TAN ; Joanne LEE ; Li Mei Michelle POON ; Cheng Kiat Lawrence NG
Annals of the Academy of Medicine, Singapore 2024;54(1):5-16
INTRODUCTION:
Allogeneic haematopoietic stem cell transplantation (allo-HSCT) is a curative option for relapse/refractory (R/R) lymphomas that have failed autologous transplantation or for high-risk lymphomas in the upfront setting. We conducted a retrospective analysis on consecutive lymphoma patients who underwent allo-HSCT over a 20-year period (2003- 2022) at Singapore General Hospital and National University Hospital Singapore.
METHOD:
A total of 121 patients were included in the study. Median age was 41 years. Diagnoses include Hodgkin lymphoma (HL, 15%), B-cell non- Hodgkin lymphoma (B-NHL, 34%), T-cell non-Hodgkin lymphoma (T-NHL, 31%) and natural killer T-cell lymphoma (NKTL, 20%). Moreover, 27% of patients had prior auto-haematopoietic stem cell transplanta-tion (auto-HSCT), and 84% received reduced intensity conditioning (RIC). Donor types were matched sibling donor (45%), matched unrelated donor (29%), haploidentical donor (19%) and cord blood (CB, 7%).
RESULTS:
After median follow-up of 56 months, estimated 4-year progression-free survival (PFS) and overall survival (OS) for all patients were 38% and 45%, respectively. Non-relapse mortality (NRM) was 15% at day 100 and 24% at 1 year. On univariate analysis, complete remission status at transplant and RIC confers superior OS. On multivariate analysis, HL was associated with superior OS compared to NHL, whereas matched unrelated donor transplant was associated with significantly inferior OS compared to matched sibling donor.
CONCLUSION
Long-term curative durability was observed with allo-HSCT for patients with relapsed/ refractory lymphomas. This real-world data serves as a valuable historical benchmark for future studies on lymphomas in Singapore and the Asia Pacific region.
Humans
;
Singapore/epidemiology*
;
Adult
;
Male
;
Retrospective Studies
;
Female
;
Hematopoietic Stem Cell Transplantation/methods*
;
Middle Aged
;
Transplantation, Homologous
;
Young Adult
;
Transplantation Conditioning/methods*
;
Lymphoma/mortality*
;
Adolescent
;
Hodgkin Disease/mortality*
;
Aged
;
Lymphoma, B-Cell/mortality*
6.Extrapulmonary manifestations and complications of severe acute respiratory syndrome coronavirus-2 infection: a systematic review.
Jiacai CHO ; Joanne LEE ; Ching-Hui SIA ; Chieh Sian KOO ; Benjamin Y Q TAN ; Weizhen HONG ; Ellie CHOI ; Xueying GOH ; Louis CHAI ; Nisha Suyien CHANDRAN ; Horng Ruey CHUA ; Bernard P L CHAN ; Mark MUTHIAH ; Ting Ting LOW ; Eng Soo YAP ; Manjari LAHIRI
Singapore medical journal 2023;64(6):349-365
INTRODUCTION:
We aimed to describe the extrapulmonary manifestations of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection, including their frequency, onset with respect to respiratory symptoms, pathogenesis and association with disease severity.
METHODS:
We searched the MEDLINE and Embase databases for SARS-CoV-2-related studies. Meta-analysis, observational studies, case series and case reports published in English or Chinese between 1 January 2020 and 1 May 2020 were included. Reports with only paediatric or obstetric cases were excluded.
RESULTS:
169 articles were included. Early manifestations (preceding respiratory symptoms until Day 6 of onset) included olfactory and gustatory disturbance (self-reported in up to 68% and 85% of cases, respectively), gastrointestinal symptoms (up to 65.9%) and rash (up to 20.4%). From Day 7 onwards, hypercytokinaemia, paralleled multi-organ complications including acute cardiac injury (pooled incidence of 17.7% in 1,412 patients, mostly with severe disease and 17.4% mortality), kidney and liver injury (up to 17% and 33%, respectively) and thrombocytopenia (up to 30%). Hypercoagulability resulted in venous thromboembolic events in up to 31% of all patients. Uncommon disease presentation and complications comprised Guillain-Barré syndrome, rhabdomyolysis, otitis media, meningoencephalitis and spontaneous pneumomediastinum.
CONCLUSION
Although the systemic manifestations of SARS-CoV-2 infection are variegated, they are deeply interwoven by shared mechanisms. Two phases of extrapulmonary disease were identified: (a) an early phase with possible gastrointestinal, ocular and cutaneous involvement; and (b) a late phase characterised by multiorgan dysfunction and clinical deterioration. A clear, multidisciplinary consensus to define and approach thromboinflammation and cytokine release syndrome in SARS-CoV-2 is needed.
Humans
;
Asian People
;
COVID-19/complications*
;
Inflammation/complications*
;
SARS-CoV-2
;
Thrombosis
7.Acute paediatrics tele-support for caregivers in Singapore: an initial experience with a prototype Chatbot: UPAL.
Sashikumar GANAPATHY ; Su Ying Serena CHANG ; Joanne Mui Ching TAN ; Cynthia LIM ; Kee Chong NG
Singapore medical journal 2023;64(5):335-342
Humans
;
Child
;
Caregivers
;
Singapore
;
Software
8.Establishing a national indicator-based surveillance system for hospital bed utilization by COVID-19 patients in the Philippines
Bienvenido S Cabaro III ; Gabrielle Ann T Dela Paz ; Jeffrey B Dotingco ; Bernadette Joy Q Almirol ; Gabriel R Borlongan ; Reena Ophelia D Cebreros ; Patrick B Diangco ; Kenneth Pierre B Quijalvo ; Joanne Pauline U Tan ; Ramon Rafael D Tonato
Western Pacific Surveillance and Response 2023;14(5):33-39
In March 2020, the Philippine Department of Health (DOH) designed and rapidly implemented a national surveillance system for the utilization of hospital beds by patients with coronavirus disease (COVID-19) to produce complete and timely data for use by various levels of governance in response to the COVID-19 pandemic. The DOH launched the DOH DataCollect (DDC) Bed Tracker system, a web-based application that collects information from all 1906 public and private hospitals and infirmaries across the country using a modular data collection tool. Data on the maximum number of occupied COVID-19-designated beds (n = 28 261), hospital bed utilization rate (71.7%), and mechanical ventilator number (n = 1846) and utilization rate (58.5%) were recorded in September 2021 during the Delta surge of cases in the Philippines. Data on human resources, personal protective equipment and supplies, and other operational indicators were added to the system during various modifications. Information from the DDC was used to inform the COVID-19 response and operations at national and local levels and facilitated research at academic and nongovernmental agencies. The development of the DDC system demonstrates that an effective surveillance system for use by all health-care facilities is achievable through strong national leadership, the use of available technology and adaptive information systems, and the establishment of networks across different health facilities and stakeholders.
9.Comparison of Serum Ketone Levels and Cardiometabolic Efficacy of Dapagliflozin versus Sitagliptin among Insulin-Treated Chinese Patients with Type 2 Diabetes Mellitus
Chi-Ho LEE ; Mei-Zhen WU ; David Tak-Wai LUI ; Darren Shing-Hei CHAN ; Carol Ho-Yi FONG ; Sammy Wing-Ming SHIU ; Ying WONG ; Alan Chun-Hong LEE ; Joanne King-Yan LAM ; Yu-Cho WOO ; Karen Siu-Ling LAM ; Kelvin Kai-Hang YIU ; Kathryn Choon-Beng TAN
Diabetes & Metabolism Journal 2022;46(6):843-854
Background:
Insulin-treated patients with long duration of type 2 diabetes mellitus (T2DM) are at increased risk of ketoacidosis related to sodium-glucose co-transporter 2 inhibitor (SGLT2i). The extent of circulating ketone elevation in these patients remains unknown. We conducted this study to compare the serum ketone response between dapagliflozin, an SGLT2i, and sitagliptin, a dipeptidyl peptidase-4 inhibitor, among insulin-treated T2DM patients.
Methods:
This was a randomized, open-label, active comparator-controlled study involving 60 insulin-treated T2DM patients. Participants were randomized 1:1 for 24-week of dapagliflozin 10 mg daily or sitagliptin 100 mg daily. Serum β-hydroxybutyrate (BHB) levels were measured at baseline, 12 and 24 weeks after intervention. Comprehensive cardiometabolic assessments were performed with measurements of high-density lipoprotein cholesterol (HDL-C) cholesterol efflux capacity (CEC), vibration-controlled transient elastography and echocardiography.
Results:
Among these 60 insulin-treated participants (mean age 58.8 years, diabetes duration 18.2 years, glycosylated hemoglobin 8.87%), as compared with sitagliptin, serum BHB levels increased significantly after 24 weeks of dapagliflozin (P=0.045), with a median of 27% increase from baseline. Change in serum BHB levels correlated significantly with change in free fatty acid levels. Despite similar glucose lowering, dapagliflozin led to significant improvements in body weight (P=0.006), waist circumference (P=0.028), HDL-C (P=0.041), CEC (P=0.045), controlled attenuation parameter (P=0.007), and liver stiffness (P=0.022). Average E/e’, an echocardiographic index of left ventricular diastolic dysfunction, was also significantly lower at 24 weeks in participants treated with dapagliflozin (P=0.037).
Conclusion
Among insulin-treated T2DM patients with long diabetes duration, compared to sitagliptin, dapagliflozin modestly increased ketone levels and was associated with cardiometabolic benefits.
10.Oral propranolol for the treatment of infantile haemangiomas in Singapore.
Joanne Mui Ching TAN ; Hwee Woon LIM ; Mark Jean-Aan KOH
Singapore medical journal 2021;62(3):139-142
INTRODUCTION:
Infantile haemangiomas (IH) are the most common vascular tumours in childhood. Over the past decade, treatment of IH has been revolutionised by the discovery of the effectiveness of beta-blockers in its treatment. We review our hospital's experience with oral propranolol in the treatment of IH in an Asian population.
METHODS:
We performed a retrospective review of the medical records and clinical photos of paediatric patients with IH treated with propranolol in a tertiary paediatric hospital in Singapore from January 2010 to February 2015.
RESULTS:
A total of 88 patients with IH treated with propranolol were identified over a five-year period, with 79 patients included in the final analysis. There was a predominance of female patients (75.9%) and preterm infants (41.8%) in our study population. The head and neck (65.8%), especially the orbital or preorbital region (45.6%), were the most common lesion sites in our cohort of patients. Mean age of onset was 2.3 ± 4.5 weeks of age, and mean age of starting propranolol treatment was 7.7 ± 10.5 weeks of age. 44.3% of patients experienced > 75% improvement, while 29.1% experienced improvement of 50%-75%. Response to treatment was influenced by the age of starting treatment.
CONCLUSION
Our study provides further evidence of the efficacy and safety of propranolol in the treatment of IH in an Asian population. Early treatment is recommended for optimal results.


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