1.Detection of a Serratia sarumanii outbreak in neonatal intensive care units using SaTScan and whole genome sequencing, Philippines, 2022
Giselle V Godin ; Sonia B Sia ; Ferissa B Ablola ; June M Gayeta ; Marietta L Lagrada ; Polle Krystle V Macaranas ; Agnettah M Olorosa ; Janziel Fiel Palarca ; Manuel C Jamoralin, Jr ; June Janice Borlasa ; Ma Fe Laren B Gacho ; Rica Marie B Andico ; Ida Marrione Q Arriola ; Jo-Anne J Lobo ; Melanie B Adolfo ; Jessica Anne A Dumalag ; Joel T Gallardo ; Ma Delta S Aguilar ; Allyne M Aguelo ; Charlotte V Bañ ; es ; Genelynne J Beley
Western Pacific Surveillance and Response 2026;17(1):13-21
Objective: This study aimed to demonstrate the benefits of using SaTScan (Boston, MA, USA), a cluster-detection software programme, and whole genome sequencing to investigate a suspected outbreak of Serratia marcescens infections in a tertiary government hospital in the southern Philippines. The hospital is part of the national Antimicrobial Resistance Surveillance Program’s network of sentinel sites.
Methods: The investigation followed national outbreak investigation protocols. In May 2022, when evaluation of daily hospital laboratory census data revealed an increase in the number of Serratia species in the hospital, an alert was triggered. A concurrent, routine SaTScan analysis of the hospital’s surveillance data by the Antimicrobial Resistance Surveillance Reference Laboratory confirmed a cluster of cases. The Reference Laboratory requested isolates from clinical specimens from the hospital for confirmation of bacterial identification, antimicrobial susceptibility testing and whole genome sequencing.
Results: Six isolates were submitted for genomic analysis, two of which were from the identified cluster. Although originally identified as S. marcescens, five of the isolates were subsequently confirmed as S. sarumanii. Phylogenetic analysis showed that the two isolates from the cluster were closely related and belonged to the same clade, which may suggest a common source. Three antimicrobial resistance genes were identified, but their phenotypic expression was limited, with one isolate exhibiting resistance mechanisms.
Discussion: This study highlighted the utility of SaTScan for the early detection of potential disease outbreaks. The use of whole genome sequencing enhanced the investigation by enabling the analysis of potential transmission pathways at the genetic level, identification of the outbreak source and the detection of novel species.
2.COVID-19 mortality in the Philippines: province-level ecological analysis, 2020–2023
Jimuel Celeste, Jr ; Jesus Emmanuel Sevilleja ; Vena Pearl Bongolan ; Roselle Leah Rivera ; Salvador Eugenio Caoili ; Romulo de Castro
Western Pacific Surveillance and Response 2026;17(1):30-41
Objective: To investigate COVID-19 mortality in Philippine provinces from 2020 to 2023.
Methods: Crude mortality rate (CMR), age-standardized mortality rate (ASMR) and age-specific mortality rate were computed for 84 areas (82 provinces and 2 cities) using COVID-19 surveillance data from the Philippine Department of Health, which captured data about confirmed deaths occurring between 20 January 2020 and 9 May 2023. Provinces were ranked by their ASMR. A correlation analysis was conducted to identify possible predictors of COVID-19 mortality. Among the factors investigated were the incidence of poverty, population density, proportion of the population considered elderly (aged >=65 years), hospital bed density and COVID-19 testing rates.
Results: Eight of the 10 provinces that had the highest COVID-19 ASMRs were located in the Luzon island group. The province with the highest ASMR was Benguet in Northern Luzon (207.83 deaths/100 000 population), and the lowest rate was in Tawi-Tawi in Southwestern Mindanao (2.22 deaths/100 000 population). The incidence of poverty was negatively correlated with COVID-19 mortality, while hospital bed density and COVID-19 testing rates were positively correlated with CMRs and ASMRs.
Discussion: This analysis provides a starting point for investigating COVID-19 mortality in Philippine provinces. The ranking of provinces by their ASMR is useful for directing future epidemiological investigations and, coupled with the results of the correlation analysis, provides insight into the factors that may have impacted COVID-19 mortality in the Philippines. Our analysis suggests that COVID-19 mortality patterns can partly be explained by the streetlight effect and factors linked to the availability of and access to health care.
3.External ocular manifestations among patients diagnosed with Coronavirus disease 2019 in a referral center in the Philippines.
Alyssa Louise B. Pejana-Paulino ; Aramis B. Torrefranca Jr. ; Nilo Vincent DG. Florcruz ; Ma. Dominga B. Padilla
Acta Medica Philippina 2026;60(1):69-77
BACKGROUND AND OBJECTIVES
The global pandemic caused by Coronavirus Disease 2019 (COVID-19) has affected millions, with growing evidence of the potential role of ocular tissues in viral transmission. At the time of writing, local data regarding the phenomenon was limited. This study investigated external ocular manifestations in patients with COVID-19 at a referral center in the Philippines, examined correlations between demographics, systemic manifestations, and laboratory results with ocular manifestations, and determined their timing relative to systemic symptoms.
METHODSThis single-center, descriptive cross-sectional study was carried out from December 8 to 18, 2020 at the adult COVID-19 wards of the Philippine General Hospital involving 72 participants. Data collection involved relevant clinical history taking and performing gross eye examination. The prevalence of ocular manifestations was described with 95% confidence intervals. Correlations between ocular manifestations and quantitative variables were analyzed with point-biserial correlation, and associations with qualitative variables were tested using chi-square or Fisher’s exact tests.
RESULTSAmong participants, 31.9% presented with ocular manifestations with foreign body sensation as the most prevalent ocular symptom (11.1%) and conjunctival hyperemia as the most prevalent ocular finding (19.4%). The median age of patients with ocular manifestations was 41 years old with a higher prevalence in the male population (73.9%, CI=95%, p=0.001). No significant correlation was observed between presence of external ocular manifestations and the different systemic and ocular co-morbidities as well as with COVID-19 clinical classification. Among those who experienced symptoms, majority (29.2%) of the patients experienced systemic symptoms prior to the onset of ocular symptoms. Ocular complaints may present as the sole manifestation (13.9%). Several laboratory parameters were measured and only temperature and AST levels showed a low positive correlation with the presence of ocular manifestations.
CONCLUSIONOcular manifestations occur in roughly one third of patients with COVID-19 based on this study population. With some individuals presenting with ocular signs or symptoms as the initial and sole manifestation, healthcare practitioners must exercise caution and remain vigilant in managing patients who present as such. At the time of writing, this is the first local study investigating the different external ocular manifestations in patients with COVID-19. There is a need to pursue more robust studies and conduct more local investigations which will guide both ophthalmologists and other practitioners in strengthening existing guidelines regarding precautionary practices, clinical diagnosis, and management of COVID-19 patients.
Human ; Sars-cov-2 ; Covid-19 ; Philippines ; Adult ; Association ; Classification ; Collection ; Confidence Intervals ; Coronavirus ; Cross-sectional Studies ; Data Collection ; Demography ; Diagnosis ; Disease ; Exercise ; Eye ; Foreign Bodies ; History ; Hospitals ; Hospitals, General ; Hyperemia ; Laboratories ; Male ; Morbidity ; Ophthalmologists ; Pandemics ; Patients ; Population ; Prevalence ; Referral And Consultation ; Role ; Sensation ; Temperature ; Time ; Tissues ; Volition ; World Health Organization ; Writing
4.In-vitro ACE-1 inhibitory activity of Coleus scutellarioides Benth (Mayana) crude ethanolic dehydrated leaf extract.
Elen Mae D. Parlocha ; Julito L. Matuco Jr. ; Jofeah S. Argana ; Cherrie G. Muañ ; a ; Von Jay Maico G. Gabucan
Acta Medica Philippina 2026;60(4):44-50
OBJECTIVES
Herbal plants can be an alternative source of therapy especially against hypertension, which is a prevalent burden in the Philippines. This study investigates the phytochemical composition and angiotensin-converting enzyme 1 (ACE-1) inhibitory activity of Mayana (Coleus scutellarioides Benth.) leaf extract, a plant ethnobotanically reported to be used for its potential antihypertensive properties and yet still lacking in in-vitro investigations.
METHODSEmploying a laboratory experimental research design and standard procedures for phytochemical screening and ACE-1 inhibitory assay, the study compares a crude ethanolic dehydrated leaf extract of Mayana with the positive control, Captopril.
RESULTSPhytochemical screening revealed the presence of flavonoids and phenolic compounds. ACE-1 inhibitory activity of Mayana at 10 μg/mL, 25 μg/mL, 50μg/mL, 100 μg/mL, 500 μg/mL, 1000 μg/mL were 0.00% ± 0.0000, 12.40% ± 2.7094, 18.76% ± 0.7232, 27.31% ± 2.2159, 30.44% ± 1.6022, 40.12% ± 2.4385, respectively. Mayana exhibited an IC50 value of 55.9154 μg/mL compared to Captopril which was 7.7232 μg/mL, indicating potency disparities.
CONCLUSIONMayana has been shown to contain flavonoids and phenolic compounds that exhibit preliminary anti- hypertensive potential through the inhibition of ACE-1. However, the bioactivity of Mayana is lower when compared with a positive control. As such, more research is needed. Despite that, this research contributes to our under- standing of Mayana as a medicinal plant and its potential contribution to complementary and alternative healthcare, with implications for patient care, community awareness, farmer livelihood, education, and future research.
Plants ; Antihypertensive Agents ; Antihypertensive ; Coleus ; Phytochemicals ; Philippines
5.Sedation practices for intubated patients with COVID-19 and non-COVID-19 acute respiratory distress syndrome and its effects on clinical outcomes.
Patricia T. Pintac ; Albert B. Albay Jr.
Acta Medica Philippina 2026;60(4):79-88
OBJECTIVE
To compare the sedation practices of adult intubated patients with COVID-19-related Acute Respiratory Distress Syndrome (C-ARDS) and ARDS from other causes, and their impact on clinical outcomes in a tertiary hospital.
METHODSWe performed a retrospective cohort on the sedation practices of adult intubated patients with C-ARDS and non-C-ARDS admitted to the intensive care unit of a tertiary hospital from January 2021 to December 2021. Electronic medical records were reviewed to obtain sedative use, sedative dosages, clinical outcomes, and complications.
RESULTSAmong the 150 included patients, 112 had C-ARDS, and 38 had non-C-ARDS. The C-ARDS group showed a significant difference with the non-C-ARDS group in terms of BMI (24.11 vs. 21.09 kg/m2, p < 0.001), use of higher PEEP (16 vs. 10, p < 0.001), and prone positioning (40.18% vs 2.63%, p < 0.01). In terms of sedation practice, C-ARDS patients targeted deeper RASS scores (p=0.038), with a significantly higher proportion receiving more than one sedative (82.14% vs. 18.42, p < 0.001) than non-C-ARDS patients. Sedation doses for midazolam (78 mg/d vs. 36 mg/d; p=0.01) and propofol (mean 2626±1312.97 mg/d vs. 1742±380.99 mg/d; p=0.007), were significantly higher among C-ARDS versus non-C-ARDS group. Duration of hospitalization (9 vs. 20 days; p < 0.001) and ventilator use (7 vs. 14.50 days; p < 0.001) were significantly shorter in the C-ARDS group, albeit with a high mortality (100% vs. 89.47%; p=0.004). Shock-requiring pressor was significantly associated with multiple sedation use [OR=15.11 (1.52-2032.89); p=0.017] and combination use of benzodiazepine and non-benzodiazepines [OR=11.51 (1.17-1541.91); p=0.034] in the C-ARDS but not the C-ARDS group.
CONCLUSIONPatients with C-ARDS had higher sedation requirements in terms of dosage and number of sedatives. The use of multiple sedatives was significantly associated with shock-requiring pressor. We recommend the development of a sedation protocol to guide sedation practices and monitoring of complications in the critically ill.
Human ; Covid-19 ; Intensive Care Units
6.Malignant peripheral nerve sheath tumor of the pancreas: A case report and updated review of related literature.
Lea Roselle O. De Castro ; Vincent F. Tatoy ; Soriano I. Capaya, Jr. ; Gracieux Y. Fernando
Acta Medica Philippina 2026;60(5):135-143
Malignant peripheral nerve sheath tumors (MPNSTs) are rare soft tissue sarcomas with poor prognosis due to their high recurrence rates. The prevalence of MPNST in the general population is 0.001%, with tumors arising from the retroperitoneum accounting for only 1% of all MPNSTs. In this report, we present a case of a 59-year-old male with pancreatic MPNST. To the authors’ knowledge, this is the first documented case of pancreatic MPNST in the Philippines.
The patient initially presented with a 3-month history of abdominal pain, weight loss, and anorexia. On abdominal computed tomography (CT) scan, a large cystic mass involving the pancreatic head and body, with an enhancing peripheral solid component in the superior region was seen. The patient underwent distal pancreatectomy, en bloc splenectomy and excision of duodenal cyst. Post-operative histopathology and immunohistochemistry staining were consistent with pancreatic MPNST with tumor very near the margin of resection adjacent to the portal vein. Adjuvant systemic chemotherapy and radiotherapy were not performed due to lack of evidence of benefit over risk for this population. Disease recurrence (nodal-peritoneal metastases) was noted six months post-operatively and he was given palliative chemotherapy with single-agent doxorubicin. However, disease progression was noted after five cycles of chemotherapy. Second-line regimen was planned but the patient died of a pulmonary embolism prior to the initiation of chemotherapy.
Due to the rarity and highly aggressive nature of MPNSTs, furthering knowledge on these tumors is important, particularly in their inclusion among the differential diagnoses for pancreatic tumors. Prompt diagnosis and histopathologic confirmation by a pathologist specializing in sarcomas are crucial in the treatment planning and prognostication of these tumors. Lastly, further studies are needed to establish more effective treatments in unresectable or metastatic disease.
Human ; Male ; Middle Aged: 45-64 Yrs Old ; Sarcoma ; Pancreas
7.Self-assessed competency among clinical research professionals in the Philippines using the JTF framework.
Ian Theodore G. Cabaluna ; Frangelo Conrad P. Tampus ; Mark Dale S. Imbag ; Edwin C. Ruamero Jr.
Acta Medica Philippina 2026;60(6):7-17
BACKGROUND AND OBJECTIVE
The Philippines has significant potential as a clinical trial hub but faces a shortage of skilled clinical research professionals (CRPs). In 2022, a cross-sectional study assessed the self-assessed competencies of CRPs in four countries (Thailand, Vietnam, Congo, Philippines) using the Joint Task Force for Clinical Trial Competency (JTF) framework. This paper presents findings on the self-assessed competency and training needs of Filipino CRPs.
METHODSWe conducted a cross-sectional online survey among Filipino clinical research professionals from March to April 2022. We asked for their self-assessed competency, relevance to their roles, and training needs in the competency domains according to the JTF framework. We also asked for the skills in community engagement and research grant application of the investigators. Results were summarized and analyzed according to their primary roles.
RESULTSOne hundred seventy-five (175) Filipino CRPs participated in the survey. They described themselves as “skilled” across all competency domains in conducting clinical research but did not rate themselves at an advanced level. They reported the lowest confidence in their skills related to study management, investigational product development and regulation, and data management. They exhibited greater confidence in competencies such as ethical considerations, professionalism, and communication. Notably, surveyed investigators had the lowest ratings in research design.
CONCLUSIONThis study provides a comprehensive assessment of the self-perceived competencies of a sample of Filipino CRPs using the JTF Clinical Research Competency Framework. It highlights key areas for capacity building, particularly in operational and regulatory competencies. However, due to the non-probability sampling and reliance on self-assessment, findings should be interpreted with caution.
Human ; Research Personnel ; Professional Competence ; Self-assessment ; Needs Assessment ; Philippines
8.Axial biomechanical performance evaluation of locally-developed modular external fixator.
Jan Francois B. SEVERO ; Miguel Sandino O. ALJIBE ; Anjenina U. DURANA ; Jason PECHARDO ; Dionella Jitka B. QUINAGORAN ; Eduardo R. MAGDALUYO JR. ; Emmanuel P. ESTRELLA
Acta Medica Philippina 2026;60(9):25-32
BACKGROUND
In the Philippines and other developing countries, access to high-stability external fixators for traumainduced bone fracture management is limited, as modular external fixators, especially those with snap-on features, are manufactured overseas and are prohibitively expensive for most Filipino patients.
OBJECTIVEThis study aimed to assess the biomechanical performance of a locally-developed modular external fixator prototype for tibial diaphyseal fractures in comparison to available external fixators, such as Roger Anderson and Hoffmann. This provides an initial evaluation for the use of the external fixator as an alternative in terms of its stability.
METHODSUsing axial compression testing compliant with the ASTM F1541-24 standards, the ultimate strength, yield strength, safe strength, and stiffness were measured across various fixator types and tightening mechanisms, with or without the aid of a wrench. Statistical tools such as the t-test assuming equal variances, one-way analysis of variance, and Tukey-Kramer test with a 0.05 level of significance were used to determine any significant differences.
RESULTSThe mechanical performance of the external fixator prototype increased by a factor of 1.5 to 2.5 after the clamps were tightened with the wrench. However, when hand-tightened, it still performed sufficiently, showing a comparable mechanical performance with the Roger Anderson Fixator. In terms of the ultimate, safe, and yield strengths, it performed competitively in comparison with the Hoffmann system. However, there is a significant difference in stiffness between the prototype and the Hoffmann system.
CONCLUSIONThe locally-developed external fixator was comparable biomechanically to the commercially available external fixators and the prototypes in different studies.
Evaluation Studies As Topic ; Developing Countries ; External Fixators ; Fractures, Bone ; Philippines ; Patients
9.Facilitating and hindering factors in the provision of incentives and benefits for Barangay Health Workers (BHWs) in Oriental Mindoro: Insights from Focus Group Discussions (FGDs) and Key Informant Interviews (KIIs)
Onofre A. Maminta jr. ; Reynaldo H. Imperial
Philippine Journal of Health Research and Development 2025;29(2):9-12
BACKGROUD
In 1995, RA 7883 was enacted stating the incentives and benefits which can be provided for BHWs. In the advent of the Universal Health Care, the role of the BHWs will be crucial more than ever and to ensure the sustainability of the program is an urgent concern. There is a need to identify the hindrances in the provision of incentives and benefits for the BHWs in coming up with recommendations on how to improve it.
METHODOLOGYFocus group discussions on selected BHWs and key informant interviews on policy makers and implementors were conducted to assess the reinforcing and hindering factors on the provision of incentives and benefits for the BHWs.
RESULTThe report outlines key factors affecting BHWs in Oriental Mindoro. While the BHW organization has potential to offer incentives, it needs stronger oversight from the Local Government Unit (LGU) to be effective. NGOs, provide crucial funding for training BHWs in remote areas. Political interference in appointing BHWs, with frequent changes in leadership, disrupts the program's stability. Training opportunities are limited by a lack of funding, leaving many BHWs undertrained. Additionally, local ordinances that offer benefits to BHWs often fail due to unclear policies, changing local leadership, and insufficient budgets.
CONCLUSIONThe BHW program continues to face persistent challenges in the provision of incentives and benefits, largely due to the lack of clear, comprehensive, and enforceable policies and guidelines.
Human ; Health Services Needs And Demand
10.The diagnostic value of Fibrosis-4 Score (FIB-4) in detecting non-alcoholic fatty liver disease among adults with type 2 diabetes mellitus
Jennifer Lourdes De Leon Ng ; Luz Margaret Alanes Escueta ; Gabriel V. Jasul jr. ; Oliver Allan C. Dampil ; Juliet L. Gopez-cervates
Philippine Journal of Internal Medicine 2025;63(2):91-98
BACKGROUND
Non-Alcoholic Fatty Liver Disease (NAFLD) is common in Type 2 Diabetes Mellitus (T2DM). The FIB-4 index is one of the most-studied non-invasive biomarkers that combines age and laboratory parameters (platelet count, alanine-and aspartate- aminotransferase) to evaluate underlying hepatic fibrosis. This study aims to determine the diagnostic value of Fibrosis-4 (FIB-4) index scoring in screening for non-alcoholic fatty liver disease in patients with type 2 diabetes mellitus, which is a high-risk population in development of advance fibrosis.
METHODOLOGYA single center, analytical cross-sectional study was conducted among adult T2DM patients with and without NAFLD seen at the Out-Patient Department (OPD) and those with NAFLD enrolled under the Liver Disease Databank of the Liver Disease and Transplant Center in collaboration with Research and Biotechnology Division at St. Luke’s Medical Center, Quezon City. Medical history was obtained by reviewing charts of eligible patients using data collection form. Liver ultrasound was used as the reference standard in the diagnosis of NAFLD. The FIB-4 index was calculated with this formula: age (years) x AST (U/L)/(platelets (10^9/L) x ALT (U/L)1/2.
RESULTSA total of 305 adult patients with type 2 diabetes mellitus were included in the study. The prevalence of non-alcoholic fatty liver disease based on ultrasound among diabetic patients is 76.07%. The median age (p = 0.0204), AST (p < 0.00001), ALT (p < 0.00001) were significantly higher in patients with NAFLD than those without. Platelet count (p = 0.0002) was significantly lower in patients with NAFLD than those without. The proportion of patients with low platelet count, high AST and high ALT were significantly higher in patients with NALFD than those without. In this study, the FIB-4 index cutoff score for screening of NAFLD is ≥0.76, which has an accuracy of 66.23%, sensitivity of 75%, specificity of 38.3%, PPV of 79.46% and NPV of 32.56% in detecting fatty liver.
CONCLUSIONA FIB-4 index value of ≥0.76 has an acceptable sensitivity for screening NAFLD even in the absence of fibrosis among patients with T2DM. However, due to its low specificity, additional tests to establish NAFLD diagnosis may be required.
Human ; Diabetes Mellitus ; Non-alcoholic Fatty Liver Disease ; Fibrosis


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