1.Clinical presentation and surgical outcomes of congenital divided nevus of the eyelids in three Filipino patients: A case series
Mayleen D. Jereza ; Alexander D. Tan ; Armida L. Suller-pansacola ; Charisse Ann S. Tanlapco ; Patrick S. Quezon ; Yasser E. Alhasan ; Mark Niñ ; o A. Estrella ; Jann Perrie S. Alipio
Acta Medica Philippina 2025;59(Early Access 2025):1-10
Congenital divided nevus of the eyelids is a rare form of melanocytic nevus which involves contiguous portions of the upper and lower eyelid margins unilaterally, hence the term ‘kissing nevus’. While usually present at birth, these nevi may also appear later in life. When the mass enlarges, it may cause cosmetic issues to the patient, as well as functional problems such as mechanical ptosis, ectropion, and epiphora.
We report three cases of congenital divided nevus of the eyelids, all presenting with unilateral upper and lower hyperpigmented lid masses since birth. The first case had an upper lid mass measuring 11 mm x 19 mm, and a lower lid mass measuring 55 mm x 47 mm, with both masses extending into the palpebral conjunctiva, and causing severe ptosis and corneal neovascularization due to chronic irritation. The second case presented with hyperpigmented masses at the lateral third of the right upper eyelid measuring 8 mm x 17 mm and of the lower eyelid measuring 9 mm x 15 mm on the lower lid with lashes growing through the masses. There was extension of the mass into the palpebral conjunctiva. The third case presented with a 23 x 18 mm hyperpigmented, well-circumscribed, verrucated mass at the medial half of the upper eyelid crossing the eyelid margin, and a 15 x 13 mm lesion at the medial third of the lower lid with the same characteristics, with small crusty lesions and clotted blood. All three patients underwent excision biopsy with lid reconstruction using full thickness skin grafts from the supraclavicular area. Six months postoperatively, the first case underwent a repeat full thickness skin graft due to graft contraction, and also received two sessions of fractional carbon dioxide (CO2 ) laser, two sessions of intralesional triamcinolone injections, and silicone gel application with further improvement of graft healing and scarring. The second case also underwent two sessions of intralesional steroid injection for scar management. During follow-up, which spanned 13 months for the first case, 10 months for the second case, and two months for the third case, improved functional and cosmetic outcomes were observed.
This case series highlights the outcomes of the most common surgical technique done for congenital divided nevi of the eyelids. Congenital divided nevi are usually diagnosed clinically and malignant degeneration is rare, hence lid reconstruction may be done without frozen section. The cases in the series were treated due to cosmetic and functional purposes, hence the importance of continuous post-operative follow-up to monitor for graft dehiscence, scar development, recurrence of the mass, malignant degeneration, and development of lid malposition. Additional procedures for scar management, such as CO2 laser and intralesional steroid injections, may be necessary to further enhance outcomes in complex cases. All three cases in this series exhibited improved functional and cosmetic outcomes post-operatively, with significant reduction in ptosis and scarring. Longterm follow-up revealed satisfactory recovery with minimal complications, with no recurrence nor malignant degeneration.
Human ; Male ; Female ; Adult: 25-44 Yrs Old ; Young Adult: 19-24 Yrs Old ; Nevus ; Nevus, Pigmented
2.Effect of a brief training program on the knowledge of Filipino primary care providers in a rural and a remote setting: A before and after study
Julianne Keane M. Pascual ; Arianna Maever Loreche ; Regine Ynez H. De mesa ; Noleen Marie C. Fabian ; Josephine T. Sanchez ; Janelle Micaela S. Panganiban ; Mia P. Rey ; Carol Stephanie C. Tan-lim ; Mark Anthony U. Javelosa ; Ramon Pedro P. Paterno ; Ray U. Casile ; Leonila F. Dans ; Antonio L. Dans
Acta Medica Philippina 2025;59(1):66-72
BACKGROUND AND OBJECTIVE
Primary care providers are key players in providing quality care to patients and advancing Universal Health Care (UHC). However, effective and quality healthcare delivery may be affected by inadequate knowledge and failure to adhere to evidence-based guidelines among providers. The Philippine Primary Care Studies (PPCS) is a five-year program that pilot tested interventions aimed at strengthening the primary care system in the country. Evidence-based training modules for healthcare providers were administered in Sorsogon and Bataan from the years 2018 to 2021. Module topics were selected based on common health conditions encountered by providers in rural and remote settings. This program aimed to evaluate the effectiveness of training in increasing provider knowledge.
METHODSA series of training workshops were conducted among 184 remote- and 210 rural-based primary care providers [nurses, midwives, barangay or village health workers (BHWs)]. They covered four modules: essential intrapartum and newborn care (EINC), integrated management of childhood illness (IMCI), non-communicable diseases (NCD), and geriatrics. A decision support system (UpToDate) was provided as a supplementary resource for all participants. We administered pre-tests and post-tests consisting of multiple-choice questions on common health conditions. Data was analyzed using paired one-tailed t-test, with an alpha of 0.05.
RESULTSThe knowledge of nurses, midwives, and BHWs improved after the training workshops were conducted. The largest increase from pre-test to post-test scores were observed among the midwives, with a mean difference (MD) of 32.9% (95% CI 23.9 to 41.9) on the EINC module, MD of 25.0% (95% CI 16.6 to 33.4) in the geriatrics module, and MD of 13.5% (95% CI 6.9 to 20.1) in the NCDs module. The nurses had the greatest improvement in the IMCI module (MD 10.8%, 95% CI 2.5 to 19.1). The knowledge of BHWs improved in all participated modules, with greatest improvement in the NCD module (MD 9.0%, 95% CI 5.77 to 12.14).
CONCLUSIONSPrimary care workshops, even if conducted as single-sessions and on a short-term basis, are effective in improving short-term knowledge of providers. However, this may not translate to long-term knowledge and application in practice. Furthermore, comparisons across provider categories cannot be made as participant composition for each training workshop varied. Ultimately, this study shows enhancing provider knowledge and competence in primary care will therefore require regular and diverse learning interventions and access to clinical decision support tools.
Capacity Building ; Health Workforce ; Philippines ; Primary Health Care
3.The magnitude of delay in non-metastatic breast cancer treatment in a Tertiary Hospital: An analysis from 2012 to 2018
Rogelio N. Velasco jr. ; Mark M. Ando ; Mark Anthony U. Javelosa ; Rich Ericson C. King ; Karen Anjela M. Mondragon ; Harold Nathan C. Tan ; Corazon A. Ngelangel ; Irisyl O. Real
Acta Medica Philippina 2025;59(8):45-51
BACKGROUND AND OBJECTIVE
The burden of treatment delay in breast cancer is high, especially among developing countries. Despite adversely affecting morbidity and mortality, treatment delay remains unexplored in the Philippines. This study aimed to determine treatment delays among breast cancer patients in a tertiary hospital during surgery, neoadjuvant chemotherapy, and adjuvant chemotherapy, and to identify predictors of delay.
METHODSA cross-sectional study was conducted among breast cancer patients seen between January 1, 2012 to December 31, 2018. The following outcomes were investigated: ≥90 days from initial diagnosis to surgery, ≥8 weeks from diagnosis to initiation of neoadjuvant chemotherapy, and >120 days from diagnosis to initiation of adjuvant chemotherapy. Summary statistics were reported as percent for categorical data and as mean for continuous data. The individual correlations were performed using Chi-square for qualitative data and t-test for quantitative data while predictors were determined through logistic regression.
RESULTSA total of 324 patients were included in this study. The majority of the patients were less than 65 years old living in urban areas. More than half of the patients were overweight or obese, hypertensive, and diabetic. The following delays were observed: 61.1% (n = 198) with any type of delay, 23.8% (n = 53) with delay in surgery, 53.8% (n = 120) with delay in adjuvant chemotherapy, and 74.3% (n = 75) with delay in neoadjuvant chemotherapy. The patients noted to have any type of delay were more likely to be hypertensive (p = 0.046) and residing in urban areas (p = 0.041). There were no differences in the distribution of age, body mass index, and presence of co-morbid conditions such as hypertension, diabetes mellitus, coronary artery disease, and heart failure among those with any form of delay compared with no delay.
CONCLUSIONThe present study shows the presence of treatment delay among breast cancer patients and may be used to enact policy changes to optimize breast cancer care delivery. Further studies may be done to identify other factors affecting these delays and policy changes are recommended to address these gaps in surgery and chemotherapy administration among breast cancer patients.
Breast Neoplasms ; Breast Cancer ; Quality Of Health Care ; Treatment Delay
4.Use of deep learning model for paediatric elbow radiograph binomial classification: initial experience, performance and lessons learnt.
Mark Bangwei TAN ; Yuezhi Russ CHUA ; Qiao FAN ; Marielle Valerie FORTIER ; Peiqi Pearlly CHANG
Singapore medical journal 2025;66(4):208-214
INTRODUCTION:
In this study, we aimed to compare the performance of a convolutional neural network (CNN)-based deep learning model that was trained on a dataset of normal and abnormal paediatric elbow radiographs with that of paediatric emergency department (ED) physicians on a binomial classification task.
METHODS:
A total of 1,314 paediatric elbow lateral radiographs (patient mean age 8.2 years) were retrospectively retrieved and classified based on annotation as normal or abnormal (with pathology). They were then randomly partitioned to a development set (993 images); first and second tuning (validation) sets (109 and 100 images, respectively); and a test set (112 images). An artificial intelligence (AI) model was trained on the development set using the EfficientNet B1 network architecture. Its performance on the test set was compared to that of five physicians (inter-rater agreement: fair). Performance of the AI model and the physician group was tested using McNemar test.
RESULTS:
The accuracy of the AI model on the test set was 80.4% (95% confidence interval [CI] 71.8%-87.3%), and the area under the receiver operating characteristic curve (AUROC) was 0.872 (95% CI 0.831-0.947). The performance of the AI model vs. the physician group on the test set was: sensitivity 79.0% (95% CI: 68.4%-89.5%) vs. 64.9% (95% CI: 52.5%-77.3%; P = 0.088); and specificity 81.8% (95% CI: 71.6%-92.0%) vs. 87.3% (95% CI: 78.5%-96.1%; P = 0.439).
CONCLUSION
The AI model showed good AUROC values and higher sensitivity, with the P-value at nominal significance when compared to the clinician group.
Humans
;
Deep Learning
;
Child
;
Retrospective Studies
;
Male
;
Female
;
Radiography/methods*
;
ROC Curve
;
Elbow/diagnostic imaging*
;
Neural Networks, Computer
;
Child, Preschool
;
Elbow Joint/diagnostic imaging*
;
Emergency Service, Hospital
;
Adolescent
;
Infant
;
Artificial Intelligence
6.Omicron SARS-CoV-2 outcomes in vaccinated individuals with heart failure and ischaemic heart disease.
Liang En WEE ; Enoch Xueheng LOY ; Jue Tao LIM ; Yew Woon CHIA ; Shir Lynn LIM ; Jonathan YAP ; Khung Keong YEO ; Derek J HAUSENLOY ; Mark Yan Yee CHAN ; David Chien Boon LYE ; Kelvin Bryan TAN
Annals of the Academy of Medicine, Singapore 2025;54(5):270-282
INTRODUCTION:
Outcomes after SARS-CoV-2 Omicron infection in patients with heart failure (HF) and ischaemic heart disease (IHD) remain poorly defined.
METHOD:
In a highly vaccinated cohort of adult Singapore citizens and permanent residents, we used Cox proportional hazards models (adjusted for sociodemographic variables and comorbidities) to compare the risks of Omicron infection, COVID-19- related hospitalisation, and severe COVID-19 between indivi-duals with HF or IHD and matched controls without these conditions.
RESULTS:
From national databases, we identified 15,426 HF patients matched 1:∼3 to 41,221 controls, and 110,442 IHD patients matched 1:∼2 to 223,843 controls. Over 80% of HF and IHD patients had received at least 3 vaccine doses. During the Omicron-predominant period, both HF and IHD cohorts demonstrated higher adjusted risks of COVID-19 hospitalisation compared with matched controls (HF: adjusted hazard ratio [aHR] 1.77, 95% confidence interval [CI] 1.65-1.90; IHD: aHR 1.21, 95% CI 1.17-1.26). Among those with at least 1 HF-or IHD-related admission in the prior year, hospitalisation risk was further elevated (HF: aHR 1.27, 95% CI 1.13-1.42; IHD: aHR 1.11, 95% CI 1.01-1.23). Receipt of ≥3 vaccine doses was associated with substantially lower risk of severe COVID-19 versus only 2 doses (HF: aHR 0.35, 95% CI 0.28-0.43; IHD: aHR 0.27, 95% CI 0.23-0.32). A fourth dose conferred additional reductions in infection and adverse outcomes, though CIs for infection overlapped with those for 3 doses.
CONCLUSION
During Omicron predominance, HF and IHD patients experienced greater risk of COVID-19 hospitalisation and severe COVID-19 versus matched controls. Booster vaccinations attenuated these risks. Individuals with recent HF/IHD admissions should be prioritised for receipt of booster vaccine doses.
Humans
;
COVID-19/complications*
;
Male
;
Heart Failure/complications*
;
Myocardial Ischemia/complications*
;
Female
;
Middle Aged
;
Hospitalization/statistics & numerical data*
;
Aged
;
COVID-19 Vaccines/administration & dosage*
;
Singapore/epidemiology*
;
SARS-CoV-2
;
Proportional Hazards Models
;
Adult
;
Case-Control Studies
;
Vaccination/statistics & numerical data*
7.Singapore consensus statements on the management of obstructive sleep apnoea.
Leong Chai LEOW ; Chuen Peng LEE ; Sridhar VENKATESWARAN ; Michael Teik Chung LIM ; Oon Hoe TEOH ; Ruth CHANG ; Yam Cheng CHEE ; Khai Beng CHONG ; Ai Ping CHUA ; Joshua GOOLEY ; Hong Juan HAN ; Nur Izzianie KAMARUDDIN ; See Meng KHOO ; Lynn Huiting KOH ; Shaun Ray Han LOH ; Kok Weng LYE ; Mark IGNATIUS ; Yingjuan MOK ; Jing Hao NG ; Thun How ONG ; Chu Qin PHUA ; Rui Ya SOH ; Pei Rong SONG ; Adeline TAN ; Alvin TAN ; Terry TAN ; Jenny TANG ; David TAY ; Jade TAY ; Song Tar TOH ; Serene WONG ; Chiang Yin WONG ; Mimi YOW
Annals of the Academy of Medicine, Singapore 2025;54(10):627-643
INTRODUCTION:
Obstructive sleep apnoea (OSA) is common in Singapore, with moderate to severe OSA affecting around 30% of residents. These consensus statements aim to provide scientifically grounded recommendations for the management of OSA, standar-dise the management of OSA in Singapore and promote multidisciplinary collaboration.
METHOD:
An expert panel, which was convened in 2024, identified several areas of OSA management that require guidance. The expert panel reviewed the current literature and developed consensus statements, which were later independently voted on using a 3-point Likert scale (agree, neutral or disagree). Consensus (total ratings of agree and neutral) was set a priori at ≥80% agreement. Any statement not reaching consensus was excluded.
RESULTS:
The final consensus included 49 statements that provide guidance on the screening, diagnosis and management of adults with OSA. Additionally, 23 statements on the screening, diagnosis and management of paediatric OSA achieved consensus. These 72 consensus statements considered not only the latest clinical evidence but also the benefits and harms, resource implications, feasibility, acceptability and equity impact of the recommendations.
CONCLUSION
The statements presented in this paper aim to guide clinicians based on the most updated evidence and collective expert opinion from sleep specialists in Singapore. These recommendations should augment clinical judgement rather than replace it. Management decisions should be individualised, taking into account the patient's clinical characteristics, as well as patient and caregiver concerns and preferences.
Humans
;
Sleep Apnea, Obstructive/diagnosis*
;
Singapore
;
Consensus
;
Adult
8.Prognostic factors and outcomes of extremity necrotising fasciitis in Singapore.
Shaun Kai Kiat CHUA ; Noah Tian Run LIM ; Anna Hien Anh TRAN ; Liang SHEN ; Choon Chiet HONG ; Joel Yong Hao TAN ; Mark Edward PUHAINDRAN ; Jonathan Jiong Hao TAN
Annals of the Academy of Medicine, Singapore 2025;54(10):679-681
9.Effect of a brief training program on the knowledge of Filipino primary care providers in a rural and a remote setting: A before and after study
Julianne Keane M. Pascual ; Arianna Maever Loreche ; Regine Ynez H. De Mesa ; Noleen Marie C. Fabian ; Josephine T. Sanchez ; Janelle Micaela S. Panganiban ; Mia P. Rey ; Carol Stephanie C. Tan-Lim ; Mark Anthony U. Javelosa ; Ramon Pedro P. Paterno ; Ray U. Casile ; Leonila F. Dans ; Antonio L. Dans
Acta Medica Philippina 2024;58(Early Access 2024):1-7
Background and Objective:
Primary care providers are key players in providing quality care to patients and advancing Universal Health Care (UHC). However, effective and quality healthcare delivery may be affected by inadequate knowledge and failure to adhere to evidence-based guidelines among providers. The Philippine Primary Care Studies (PPCS) is a five-year program that pilot tested interventions aimed at strengthening the primary care system in the country. Evidence-based training modules for healthcare providers were administered in Sorsogon and Bataan from the years 2018 to 2021. Module topics were selected based on common health conditions encountered by providers in rural and remote settings. This program aimed to evaluate the effectiveness of training in increasing provider knowledge.
Methods:
A series of training workshops were conducted among 184 remote- and 210 rural-based primary care
providers [nurses, midwives, barangay or village health workers (BHWs)]. They covered four modules: essential intrapartum and newborn care (EINC), integrated management of childhood illness (IMCI), non-communicable diseases (NCD), and geriatrics. A decision support system (UpToDate) was provided as a supplementary resource for all participants. We administered pre-tests and post-tests consisting of multiple-choice questions on common health conditions. Data was analyzed using paired one-tailed t-test, with an alpha of 0.05.
Results:
The knowledge of nurses, midwives, and BHWs improved after the training workshops were conducted. The largest increase from pre-test to post-test scores were observed among the midwives, with a mean difference (MD) of 32.9% (95% CI 23.9 to 41.9) on the EINC module, MD of 25.0% (95% CI 16.6 to 33.4) in the geriatrics module, and MD of 13.5% (95% CI 6.9 to 20.1) in the NCDs module. The nurses had the greatest improvement in the IMCI module (MD 10.8%, 95% CI 2.5 to 19.1). The knowledge of BHWs improved in all participated modules, with greatest improvement in the NCD module (MD 9.0%, 95% CI 5.77 to 12.14).
Conclusions
Primary care workshops, even if conducted as single-sessions and on a short-term basis, are effective in improving short-term knowledge of providers. However, this may not translate to long-term knowledge and application in practice. Furthermore, comparisons across provider categories cannot be made
as participant composition for each training workshop varied. Ultimately, this study shows enhancing provider knowledge and competence in primary care will therefore require regular and diverse learning interventions and access to clinical decision support tools.
Capacity Building
;
Health Workforce
;
Philippines
;
Primary Health Care
10.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


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