Leptospirosis outbreak after a heavy rainfall typhoon in the Philippines: Clinical features, outcome and prognostic factors for mortality

@#<p style="text-align: justify;"><strong>BACKGROUND AND OBJECTIVES:</strong> In September 2009, Metro Manila was hit by a heavy rainfall typhoon Ketsana inundating several cities of Metro Manila causing an outbreak of leptospirosis. We analyzed the prognostic factors associated with mortality among leptospirosis patients admitted after the typhoon at nine tertiary hospitals from September to November 2009.<br /><strong>METHODS:</strong> We reviewed the charts of patients with probable and confirmed leptospirosis. Confirmed leptospirosis was based on any of the following: positive leptospiral culture of blood or urine, single high leptospira microagglutination titer (MAT) of 1:1600 or a fourfold rise in MAT antibody titers or seroconversion. Patients with negative serology or cultures but with history of wading in floodwaters plus any of the following signs and symptons: fever, headache, myalgia, conjunctival suffusion, diarrhea and abdominal pain, jaundice, oliguria and changes in sensorium were considered probable cases. <br /><strong>RESULTS:</strong> We analyzed 332 probable and 259 confirmed leptospirosis patients. Mean age was 37.95± 14.09, mostly males (80.2%). Almost all patients (98%) waded in floodwaters. Majority had moderate to severe form of leptospirosis (83%). Acute renal failure was the most common complication (87.1%). Mortality was 11.3% mostly due to pulmonary hemorrhage. On multivariate analysis of confirmed and probable cases, the factors independently associated with mortality were pulmonary hemorrhage (OR 2.75, 95% CI 1.46 to 5.20), severity of the disease (OR 3.85, 95% CI 1.60 to 9.26), thrombocytopenia (OR 3.16, 95% CI 1.22-8.16), duration of illness before admission (OR 0.88, 95% CI 0.78-0.99) and age (OR 1.03, 95% CI 1.00-1.06).<br /><strong>CONCLUSION:</strong> Pulmonary hemorrhage remains a poor prognostic factor and strong predictor of mortality among patients with severe leptospirosis. Early consult through heightened awareness of the public and prompt recognition of leptospirosis among clinicians can decrease the risk for progression to complications of leptospirosis and mortality. <br /><br /> </p>

The accessibility and utilization of mobile phones among TB patients: A feasibility survey for short messaging service (SMS) as a strategy to improve adherence to TB services

OBJECTIVES: To estimate the proportion of TB patients who have access to mobile phones and to describe mobile phone utilization practices of TB patients. METHODS: Six public and six private TB clinics representing the four districts of Metro Manila and one institution in Cavite were purposively selected for this cross-sectional survey conducted in 2006. Using an interviewer-administered questionnaire, patients suspected to have TB, those newly diagnosed and those currently on treatment under either DOTS or non-DOTS were interviewed. RESULTS: Of the 337 patients interviewed, 65% (95% CI 60.2 to 70.6) have access to mobile phones (45% currently own a mobile phone and 20% share a mobile phone with a household member). The mean duration of ownership was 1.8 years (SD1.7). Almost all had prepaid subscriptions (99%) and 72% had some credit/load in their mobile phones at the time of interview. Of the three existing networks, subscription to SMART was highest, followed by the Globe network. Most of them use their phones for social purposes and emergency-related communications. Most of the respondents were male (60%) in the age group of 20-39 (54%) and 40-59 years old (33%). Half of the respondents were from public TB clinics (52%). On multivariable analysis, patients consulting in private clinics [OR 2.25, 95% CI 1.36 to 3.74], belonging to the younger age of CONCLUSION: Considering the fair access (65%) to mobile phones of the patients interviewed, it is feasible to conduct a pilot intervention using SMS as a strategy to improve adherence to treatment. The intervention should consider that majority use prepaid subscriptions and that sharing of phones among household members is a common practice.