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Year : 2017  |  Volume : 21  |  Issue : 12  |  Page : 811--818

Tropical fevers in Indian intensive care units: A prospective multicenter study

1 Professor Emeritus Pediatrics, PGIMER, Chandigarh, Haryana, India
2 Critical Care Medicine, Jeevanrekha Critical Care and Trauma Hospital, Jaipur, Rajasthan, India
3 Department of Pediatrics, PGIMER, Chandigarh, Haryana, India
4 Department of Internal Medicine, PGIMER, Chandigarh, Haryana, India
5 Critical Care Medicine, Christian Medical College, Vellore, Tamil Nadu, India
6 Department of Pulmonology and Critical Care, PGIMS, Rohtak, Haryana, India
7 Critical Care Medicine, Sanjivani Super Speciality Hospital, Ahmedabad, Gujarat, India
8 Critical Care Medicine, Sir Ganga Ram Hospital, New Delhi, India
9 Critical Care Medicine, Apex Hospital, Bhopal, Madhya Pradesh, India
10 Professor Emeritus Pathology, PGIMS, Rohtak, Haryana, India

Correspondence Address:
Prof. Sunit Singhi
PGIMER, Chandigarh  -  160  012
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijccm.IJCCM_324_17

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Background and Aims: Infections in tropics often present as undifferentiated fevers with organ failures. We conducted this nationwide study to identify the prevalence, profile, resource utilization, and outcome of tropical fevers in Indian Intensive Care Units (ICUs). Materials and Methods: This was a multicenter prospective observational study done in 34 ICUs across India (July 2013–September 2014). Critically ill adults and children with nonlocalizing fever >48 h and onset < 14 days with any of the following: thrombocytopenia/rash, respiratory distress, renal failure, encephalopathy, jaundice, or multiorgan failure were enrolled consecutively. Results: Of 456 cases enrolled, 173 were children <12 years. More than half of the participants (58.7%) presented in postmonsoon months (August–October). Thrombocytopenia/rash was the most common presentation (60%) followed by respiratory distress (46%), encephalopathy (28.5%), renal failure (23.5%), jaundice (20%), and multiorgan failure (19%). An etiology could be established in 365 (80.5%) cases. Dengue (n = 105.23%) was the most common followed by scrub typhus (n = 83.18%), encephalitis/meningitis (n = 44.9.6%), malaria (n = 37.8%), and bacterial sepsis (n = 32.7%). Nearly, half (35% invasive; 12% noninvasive) received mechanical ventilation, a quarter (23.4%) required vasoactive therapy in first 24 h and 9% received renal replacement therapy. Median (interquartile range) ICU and hospital length of stay were 4 (3–7) and 7 (5–11.3) days. At 28 days, 76.2% survived without disability, 4.4% had some disability, and 18.4% died. Mortality was higher (27% vs. 15%) in patients with undiagnosed etiology (P < 0.01). On multivariate analysis, multiorgan dysfunction syndrome at admission (odds ratio [95% confidence interval]-2.8 [1.8–6.6]), day 1 Sequential Organ Failure Assessment score (1.2 [1.0–1.3]), and the need for invasive ventilation (8.3 [3.4–20]) were the only independent predictors of unfavorable outcome. Conclusions: Dengue, scrub typhus, encephalitis, and malaria are the major tropical fevers in Indian ICUs. The data support a syndromic approach, point of care tests, and empiric antimicrobial therapy recommended by Indian Society of Critical Care Medicine in 2014.


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