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.

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.

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.

METHODS

This 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.

RESULTS

Among 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. 

CONCLUSION

Ocular 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

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.

METHODS

Employing 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.

RESULTS

Phytochemical 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.

CONCLUSION

Mayana 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

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.

METHODS

We 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.

RESULTS

Among 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.

CONCLUSION

Patients 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

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

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.

METHODS

We 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.

RESULTS

One 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.

CONCLUSION

This 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

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.

OBJECTIVE

This 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.

METHODS

Using 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.

RESULTS

The 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.

CONCLUSION

The 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

Purpose: Familial adenomatous polyposis is a hereditary condition that predisposes individuals to colorectal cancer. This study aimed to evaluate the efficacy and safety of pharmacological therapies for reducing polyp number, burden, and size in individuals with familial adenomatous polyposis. Methods: A systematic search was conducted in PubMed, Embase, Web of Science, and Cochrane. Randomized trials assessing the effects of pharmacological interventions on polyp number, polyp burden, and polyp size were included, and adverse events were also analyzed. Results Sixteen studies (n=985) met the inclusion criteria. The mean participant age was 38±8.3 years, with a mean follow-up of 14.6±15.8 months. Of these studies, 62.5% focused on colorectal polyps, 18.8% on rectal polyps, 18.8% on duodenal polyps, and 12.5% addressed both colorectal and duodenal polyps. Pharmacological interventions were associated with a modest but statistically significant reduction in the number of polyps (Hedges g, −0.57; 95% confidence interval [CI], −1.08 to −0.05) and in average polyp size (Hedges g, −0.26; 95% CI, −0.49 to −0.04). However, no significant reduction in overall polyp burden was observed (Hedges g, −1.07; 95% CI, −2.21 to 0.06). In subgroup analyses, nonselective cyclooxygenase inhibitors produced a large reduction in polyp burden (Hedges g, −2.72; 95% CI, −3.28 to −2.16), while metformin also demonstrated benefit in a single study (Hedges g, −1.06; 95% CI, −1.86 to −0.27). Adverse events were generally infrequent and comparable to placebo. Conclusion: Chemopreventive interventions may reduce polyp number, burden, and size, and they appear to have a favorable safety profile.

Purpose: Splenic flexure mobilization (SFM) is occasionally utilized during sigmoidectomy to facilitate a tension-free colorectal anastomosis. Present literature regarding its use, safety, and efficacy predominantly evaluates traditional laparoscopic vs. open techniques, thus not adequately representing the current minimally invasive surgical landscape. Methods: This retrospective cohort analysis evaluated SFM during sigmoidectomy for diverticular disease via traditional laparoscopic, single-incision laparoscopic, and robotic techniques at a United States academic institution from 2019 to 2022. Primary outcomes were the rate of SFM, independent predictors, and short-term outcomes. Results: A total of 117 patients underwent sigmoidectomy for diverticulitis by six colorectal surgeons, of whom 27 underwent SFM. SFM was associated with higher rates of complicated diverticulitis (85.2% vs. 46.7%, p < 0.001), including abscess (55.6% vs. 33.3%, p = 0.037) and fistulae (59.3% vs. 17.8%, p < 0.001). Presence of a fistula was an independent predictor of SFM by logistic regression (odds ratio [OR], 5.886; p < 0.001). Mobilization was associated with more concomitant surgical procedures (66.7% vs. 28.9%, p < 0.001). There was a significant association between SFM and conversion to open approach (14.8% vs. 3.3%, p = 0.049), longer length of stay (4.2 ± 2.8 days vs. 3.6 ± 4.3 days, p = 0.041), and increased operative time (241.7 ± 76.4 minutes vs. 199.2 ± 75.7 minutes). There was no difference in 30-day morbidity/mortality. Conclusion Routine SFM can be considered in minimally invasive sigmoidectomy for complicated diverticulitis without significant impact on 30-day morbidity/mortality regardless of surgical approach and may be anticipated preoperatively, particularly when a fistula is present.