Introduction: Febrile neutropenia is a major cause of morbidity and mortality in patients presenting this condition following chemotherapy against several malignancies. Objective: To evaluate if capillary refill time (CRT) allows the prediction of poor clinical outcome with or without antibiotic dose escalation. Method: Capillary refill time was assessed in 50 patients with febrile neutropenia at its nadir after chemotherapy admitted to the emergency department at Hospital Universitário de Brasília. All patients included had a minimum average arterial blood pressure of 75 mmHg, O 2 /FiO 2 saturation rate > 300, and 15 points in the Glasgow coma scale. Inclusion depended on at least three of the systemic inflammatory response syndrome (SIRS) criteria, suspected infection, and neutropenia after chemotherapy. Capillary refill time was calculated by pressing the index finger for 15 seconds, and then timing the return to the initial color. We studied whether there is a relationship between CRT and antibiotic escalation. The gold standard used to gravity was the level of lactate. Results: 31 patients had CRT ≥ 3 seconds, which it is associated with increased serum concentration of lactate (> 2 mmol/L; p<0.05). 32 patients underwent antibiotic escalation, which it is associated with CRT ≥ 3 seconds (p<0.01). Conclusion: CRT higher than three seconds was effective to predict antibiotic escalation.
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