1.Knowledge, Attitude, and Practices Assessment of Unvaccinated Adult In-patients Regarding COVID-19 Vaccination in a Tertiary Hospital in Nueva Vizcaya, Philippines: A Cross-sectional Study.
Charity May B. PAZZIWAGAN ; Emmeline B. BORILLO
Acta Medica Philippina 2026;60(3):78-87
OBJECTIVES
his quantitative cross-sectional study aimed to determine the level of knowledge, attitude, and practices
regarding COVID-19 vaccination of unvaccinated adult patients admitted at Region II Trauma and Medical Center
(R2TMC). This may help determine the knowledge gap regarding COVID-19 vaccination, address it, and to achieve
the goal to vaccinate all eligible Filipinos. Furthermore, this may also be a springboard for future researches and
management regarding novel infections needing new vaccinations.
Collected data from the sample size of 197 using the formula for finite population with 95% confidence
level, population proportion of 50%, population size of 400, allowing 5% margin of error were summarized in a
Microsoft excel database and tables, then were analyzed using Jamovi version 2.6.22 software. Frequency, mean,
and standard deviation were calculated to measure the knowledge, attitude, and practices; Pearson correlation and
Kendall’s Tau b correlation for its relationship.
There is moderate level of knowledge (MS: 9.80-11.8), a positive attitude (MR: 2.35-2.60), and good preventive
practices (MS: 12.00-13.00) regarding SARS-CoV-2 (COVID-19) vaccination among the unvaccinated adult in-patients
of R2TMC post-pandemic. Knowledge, attitudes, and practices statistically differed (pCONCLUSION
There is a significant correlation among the knowledge of the respondents about COVID-19 vaccination,
their attitude towards it, and their practices, implying that promoting preventive behaviors toward COVID-19 would
require promoting both knowledge and efficacy beliefs among the public.
Human ; Bacteria ; Male ; Female ; Adult: 25-44 Yrs Old ; Middle Aged: 45-64 Yrs Old ; Wounds And Injuries ; Population Density ; Cross-sectional Studies ; Forecasting ; Sars-cov-2 ; Sars Virus ; Covid-19
2.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
3.Genomic variant surveillance of SARS-CoV-2 positive specimens using a direct PCR product sequencing surveillance (DPPSS) method.
Nicole Ann L. TUBERON ; Francisco M. HERALDE III ; Catherine C. REPORTOSO ; Arturo L. GAITANO III ; Wilmar Jun O. ELOPRE ; Kim Claudette J. FERNANDEZ
Acta Medica Philippina 2026;60(1):57-68
BACKGROUND AND OBJECTIVE
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as the causative agent of COVID-19 has significantly challenged the public health landscape in late 2019. After almost 3 years of the first ever SARS-CoV-2 case, the World Health Organization (WHO) declared the end of this global health emergency in May 2023. Although, despite the subsequent drop of COVID-19 cases, the SARS-CoV-2 infection still exhibited multiple waves of infection, primarily attributed to the appearance of new variants. Five of these variants have been classified as Variants of Concern (VOC): Alpha, Beta, Gamma, Delta, and the most recent, Omicron. Therefore, the development of methods for the timely and accurate detection of viral variants remains fundamental, ensuring an ongoing and effective response to the disease. This study aims to evaluate the feasibility of the application of an in-house approach in genomic surveillance for the detection of SARS-CoV-2 variants using in silico designed primers.
METHODSThe primers used for the study were particularly designed based on conserved regions of certain genes in the virus, targeting distinct mutations found in known variants of SARS-CoV-2. Viral RNA extracts from nasopharyngeal samples (n=14) were subjected to quantitative and qualitative tests (Nanodrop and AGE). Selected samples were then analyzed by RT-PCR and amplicons were submitted for sequencing. Sequence alignment analysis was carried out to identify the prevailing COVID-19 variant present in the sample population.
RESULTSThe study findings demonstrated that the in-house method was able to successfully amplify conserved sequences (spike, envelope, membrane, ORF1ab) and enabled identification of the circulating SARS-CoV-2 variant among the samples. Majority of the samples were identified as Omicron variant. Three out of four designed primers effectively bound into the conserved sequence of target genes present in the sample, revealing the specific SARSCoV-2 variant. The detected mutations characterized for Omicron found in the identified lineages included K417N, S477N, and P681H which were also identified as mutations of interest. Furthermore, identification of the B.1.448 lineage which was not classified in any known variant also provided the potential of the developed in-house method in detecting unknown variants of COVID-19.
CONCLUSIONAmong the five VOCs, Omicron is the most prevalent and dominant variant. The in-house direct PCR product sequencing surveillance (DPPSS) method provided an alternative platform for SAR-CoV-2 variant analysis which is accessible and affordable than the conventional diagnostic surveillance methods and the whole genome sequencing. Further evaluation and improvements on the oligonucleotide primers may offer significant contribution to the development of a specific and direct PCRbased detection of new emerging COVID-19 variants.
Sars-cov-2 ; Polymerase Chain Reaction ; Dna Primers ; Oligonucleotide Primers ; Computer Simulation ; Conserved Sequence ; Coronavirus ; Covid-19 ; Disease ; Emergencies ; Evaluation Studies As Topic ; Genes ; Genome ; Global Health ; Health ; Identification (psychology) ; Infection ; Infections ; Membranes ; Methods ; Mutation ; Oligonucleotides ; Organizations ; Population ; Public Health ; Rna ; Rna, Viral ; Sars Virus ; Sequence Alignment ; Severe Acute Respiratory Syndrome ; Syndrome ; Viruses ; Whole Genome Sequencing ; World Health Organization
4.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
5.Spontaneous hemarthrosis following prophylactic enoxaparin therapy in a patient with chronic kidney disease and COVID-19: A case report.
Mark Andrian O. YANO ; Geraldine T. ZAMORA ; Karen Anne L. CLARIDAD
Acta Medica Philippina 2026;60(4):97-100
Knee pain is a common clinical complaint with a broad differential diagnosis. In critically ill patients, acute monoarticular pain and swelling typically raise concern for septic arthritis. However, alternative etiologies such as crystal-induced arthritis, trauma, and hemarthrosis must also be considered.
This report presents a rare case of spontaneous hemarthrosis in a patient receiving prophylactic enoxaparin. Although uncommon, spontaneous hemarthrosis is a significant complication of anticoagulation therapy, particularly with low molecular weight heparins (LMWH) like enoxaparin.
Human ; Male ; Aged: 65-79 Yrs Old ; Hemarthrosis ; Covid-19 ; Enoxaparin
6.Association of reverse transcription polymerase chain reaction (RT-PCR) cycle threshold (Ct) value on the incidence of cerebrovascular disease (CVD) in COVID-19 confirmed patients of Las Piñas General Hospital and Satellite Trauma Center (LPGH-STC): A case-control study
Kevin Dulce De Leon ; Rhoda Zyra Padilla-Baraoidan ; Karen Hernandez-Fortes
Philippine Journal of Internal Medicine 2025;63(1):30-38
OBJECTIVES
The study aimed to define the cycle threshold (Ct) value of reverse transcription polymerase reaction (RT PCR) as a potential marker in identifying the risk of COVID-19-confirmed patients in developing cerebrovascular disease (CVD) and to present the risk factors associated with such occurrence.
METHODSThe researcher employed a single center, retrospective, chart review, case-control study among adult RT-PCR confirmed, hospitalized COVID-19 patients at Las Piñas General Hospital and Satellite Trauma Center (LPGH STC) from January to December 2021. The study included 252 patients among 730 RT-PCR-confirmed adult COVID-19 patients who met the study population criteria.
RESULTSFifty patients had concomitant CVD, while 202 patients were non-CVD. The majority (n=143, 56.75%) were 19-59 years old male predominance (n=138, 54.76%). More than half of the study population suffered from either hypertension, diabetes, or both, with a high proportion of the subjects being non-compliant or no maintenance medications. Two hundred ten (83.3%) out of 252 patients were unvaccinated. Twenty (7.9%) patients were noted with a history of smoking, and 58 (23%) patients with a history of alcohol intake. The majority of the patients suffered moderate COVID-19 severity during their hospital stay, with a 30.16% (n=76) mortality rate. Ischemic stroke was the most common CVD, with 38 (76%) occurrences. Acute respiratory failure was the leading cause of death, followed by ARDS, brainstem failure, and ACS. The median cycle threshold among CVD patients was 32.84, significantly higher than the majority at 28.64. A higher mean Ct value was noted among patients with CVD infarct at 33.44 as compared to 26.83 among patients with Hemorrhagic Stroke. Utilizing the Point-Biserial Correlation Coefficient to analyze possible association between the Ct value and the occurrence of stroke, a 0.22 correlation coefficient implied a weak positive correlation between the Ct value and CVD occurrence.
CONCLUSIONThe relationship between the cycle threshold (Ct) value and the occurrence of CVD exists weakly, and factors that might affect this relationship must be addressed and resolved. Interpreting Ct value results also requires clinical context; hence, careful utilization of such data must always be observed. Several factors, including old age, male gender, co existing comorbidities such as hypertension and diabetes mellitus, lack of maintenance medication and noncompliance, vaccination status, smoking, and alcohol intake history, contributed to the poorer outcome of the patients and the high probability of having a stroke.
Human ; Covid-19 ; Cerebrovascular Diseases ; Cerebrovascular Disorders
7.Clinicodemographic predictors of mortality among COVID-19 patients admitted in a tertiary hospital
Hanna Claire P. Bejarasco ; Ramcis Pelegrino
Philippine Journal of Internal Medicine 2025;63(1):51-54
BACKGROUND
COVID-19 has significantly impacted global mortality, particularly among those aged 45–84 years. Worldwide deaths exceeded official reports, reaching at least 3 million in 2020. In the Philippines, mortality increased in 2021 but declined by 2022. Key factors include comorbidities like diabetes and hypertension. Limited research, resources, and healthcare challenges hinder localized mortality prediction and management efforts.
METHODSThis study analyzed 234 randomly selected COVID-19 patients admitted between April 1, 2020 and April 1, 2021, using quantitative methods, descriptive and predictive designs, and advanced statistical techniques.
RESULTSMost COVID-19 patients in our study were older adults, predominantly female, with non-severe cases and mild PaO2/FiO2 ratios, indicating mild respiratory distress. Comorbidities were uncommon, but when present included hypertension and diabetes, affecting hospitalization length. Patients generally had low Sequential Organ Failure Assessment (SOFA) scores and were linked to better outcomes. Most recovered and were discharged, with a mortality rate lower in the Philippines compared to global figures. Severe cases were more common in older adults and males, often requiring mechanical ventilation. SOFA scores and PaO2/FiO2 ratios correlated with severity, while comorbidities prolonged hospital stays. Hospitalization averaged 11.3 days, shorter than global durations.
CONCLUSIONCOVID-19 patients with two or more accompanying diseases are likely to stay longer in the hospital. On the other hand, patients on mechanical ventilation support are likely to have shorter hospital stay.
Human ; Covid-19
8.Musculoskeletal discomfort during COVID-19 pandemic lockdown among the faculty members in selected schools in Mega Manila and Metro Cebu: A cross-sectional study
Consuelo Gonzalez-Suarez ; Ivan Neil Gomez ; Ken Erbvin Sosa ; Maria Lourdes Corazon Tapang ; Cristina CastroCabral ; John Christopher Mesana ; Elda Grace Anota ; Cherie-lee Apiag ; Jacqueline Calaycay
Philippine Journal of Allied Health Sciences 2025;8(2):13-22
BACKGROUND
The COVID-19 pandemic brought insurmountable changes, leading to work demands and resource limitations that placed additional physical and occupational stress.
OBJECTIVESThis study aimed to determine the change in the occurrence and intensity of musculoskeletal discomfort among selected university faculty members. It also determined the association of sociodemographic and anthropometric factors, workplace conditions, and involvement in physical activity with musculoskeletal pain.
METHODSThis is an analytical cross-sectional study conducted from June 2022 to May 2023 that surveyed university faculty members from Metro Manila and Metro Cebu. Outcome measures include sociodemographic data, anthropometric measures of weight, height, body mass index, workplace conditions, exercise participation, and musculoskeletal discomfort using the Cornell Musculoskeletal Discomfort Questionnaire.
RESULTSData from 120 participants, mostly female, with an average BMI of 27.78 ± 12.09 kg/m2 and 11.82 ± 10.39 years of teaching experience revealed increased computer usage and reduced teaching hours during the Pandemic lockdown. There was also prevalent musculoskeletal discomfort (MSD), particularly in the neck, shoulder, and upper back. Factors associated with increased MSD were female gender, longer computer use, and pre pandemic MSD history.
CONCLUSIONThis study underscores the significance of addressing ergonomic factors and work conditions to mitigate MSD risks among educators during challenging situations.
Human ; Musculoskeletal Pain ; Covid-19 ; Pandemics ; Occupational Stress
9.Risk factors and clinical outcomes of hospitalized Covid-19 patients with diabetes mellitus in a tertiary hospital
Jiselle Aimee Y. Bedia ; Maria Honolina S. Gomez ; Jean Uy-ho ; Erick S. Mendoza ; Lizette Kristine F. Lopez
Journal of Medicine University of Santo Tomas 2025;9(1):1515-1531
INTRODUCTION
Patients with diabetes are at higher risk of developing severe COVID-19 infection with a two-fold increased risk of mortality. This study described the risk factors affecting clinical outcomes of confirmed COVID-19 patients with diabetes mellitus at the University of Santo Tomas Hospital, Manila, Philippines.
METHODThis retrospective study included 204 patients with COVID-19 (34 with known type 2 diabetes and 2 with new-onset diabetes) from March to October 2020. Clinical characteristics and laboratory parameters were collected and analyzed in subjects with diabetes. A univariate logistic regression was used to calculate the odds ratios and 95% confidence interval (CI) for the patient’s risk factors associated with mortality or poor prognosis.
RESULTSModerate COVID-19 infection occurred in 52.8% of type 2 diabetes mellitus (T2DM) patients and critical COVID-19 infection in 27.8%. All patients with critical COVID-19 infection presented with acute respiratory distress syndrome, half had concomitant septic shock and respiratory failure was observed in 27.8%. The average length of hospital stay was approximately 17.5 days. T2DM patients with established atherosclerotic cardiovascular disease (ASCVD) are 5.1 times (95% CI 1.2 to 21.4) more likely to develop severe or critical COVID-19 infection, and more likely to stay in the hospital for more than 14 days. HbA1c >8.5% is a potential risk (OR = 3.7, 0.6 to 21.6) for severe to critical disease. T2DM patients with concomitant coronary artery disease are 7.6 times (95% CI 1.3 to 43.4) more likely to stay longer (more than 14 days) as compared to those without existing coronary artery disease. Prior statin use was a significant risk factor for ICU admission (p-value 0.0341). Other potential risk factors affecting clinical outcomes are obesity (OR 3, 0.4 to 22.7), prior use of thiazolidinedione (OR 7.8, 0.5 to 126.7) or sodium-glucose transporter 2 (SGLT2) inhibitors (OR 7.5, 0.4 to 145) and prior use of anti-thrombotic (OR 4.6, 0.4 to 56.8). The recovery rate of T2DM patients hospitalized for COVID-19 infection was 86.1%.
CONCLUSIONPatients with T2DM are more vulnerable to COVID-19 infection. The presence of established ASCVD increases the likelihood of severe COVID-19 disease as well as longer length of hospital stay for more than 14 days. Early recognition and prompt treatment led to a favorable recovery rate.
Human ; Covid-19 ; Diabetes Mellitus, Type 2
10.Clinical profile of pediatric patients with COVID‐19 admitted to Southern Philippines Medical Center before vaccine rollout
Rica Marie B. Andico ; Ameleen B. Bangayan ; Jo-anne J. Lobo
Southern Philippines Medical Center Journal of Health Care Services 2025;11(1):1-3
Human
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Philippines
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Vaccines
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Covid‐19


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