Objective: This study aims to determine the staphylococcal nasal carriage rates of children who are between one-to-five years old and residing in Botanical Gardens, Barangay Pio Del Pilar, Makati City. The following shall also be investigated: antibiotic resistance patterns of isolates, factors associated with S. aureus nasal carriage, and other pathologic organisms colonizing the anterior nares in this population. Methods: Nasal swabs were taken from each subject and cultured after informed consent was obtained. Statistical analysis was performed to determine factors with significant association with nasal colonization. Results: Ten (12.9%) out of 77 subjects were positive for S. aureus nasal colonization, one of which was oxacillin-resistant. Only the gross monthly income showed significant association with nasal carriage (p=0.03, OR = 0.59, 95% CI). Four subjects (5.1%) were carriers of S. pneumoniae. Conclusions The study shows a relatively low rate of Methicillin Sensitive S. aureus (MSSA) and Methicillin Resistant S. aureus (MRSA) nasal carriage. The MRSA isolate was sensitive to all other anti-staphylococcal drugs tested, similar to other studies on Community Acquired-MRSA (CA-MRSA). Local surveillance studies are essential in the control of CA-MRSA and in guiding local antibiotic policies for staphylococcal infections. Further studies on a bigger population are needed to determine rates, resistance patterns and risk factors associated with nasal colonization.
Staphylococcus aureus ; Methicillin-Resistant Staphylococcus aureus

INTRODUCTION: Despite adhering to criteria for extubation, up to 20% of intensive care patients require re-intubation, even with use of post-extubation high-flow nasal cannula (HFNC). This study aims to identify independent predictors and outcomes of extubation failure in patients who failed post-extubation HFNC. METHODS: We conducted a multicentre observational study involving 9 adult intensive care units (ICUs) across 5 public hospitals in Singapore. We included patients extubated to HFNC following spontaneous breathing trials. We compared patients who were successfully weaned off HFNC with those who failed HFNC (defined as re-intubation ≤7 days following extubation). Generalised additive logistic regression analysis was used to identify independent risk factors for failed HFNC. RESULTS: Among 244 patients (mean age: 63.92±15.51 years, 65.2% male, median APACHE II score 23.55±7.35), 41 (16.8%) failed HFNC; hypoxia, hypercapnia and excessive secretions were primary reasons. Stroke was an independent predictor of HFNC failure (odds ratio 2.48, 95% confidence interval 1.83-3.37). Failed HFNC, as compared to successful HFNC, was associated with increased median ICU length of stay (14 versus 7 days, CONCLUSION Post-extubation HFNC failure, especially in patients with stroke as a comorbidity, remains a clinical challenge and predicts poorer clinical outcomes. Our observational study highlights the need for future prospective trials to better identify patients at high risk of post-extubation HFNC failure.
Adult ; Airway Extubation ; Cannula ; Critical Care ; Female ; Humans ; Intensive Care Units ; Male ; Middle Aged ; Respiratory Insufficiency/therapy* ; Singapore/epidemiology*