Multi-center prospective evaluation of discharge criteria for hospitalized patients with Crimean-Congo Hemorrhagic Fever

•Discharge of patients hospitalized for CCHF prone to bleeding must be avoided.•Cases have no fever and hemorrhage can be considered for discharge; the platelets >100,000/mm3 with normal bleeding tests.•A negative CCHFV RT-PCR result is required before discharge; however, it is not feasible in endemic overcrowded settings.

IntroductionThe information of discharge criteria in patients with Crimean-Congo Hemorrhagic Fever (CCHF) is limited. In this study, we aimed to determine the clinical and laboratory parameters used in discharging the patients by the experienced centers.Materials and methodsThe study was done in 9 reference centers of CCHF from May 1, 2015 to December 1, 2015 and included laboratory-confirmed patients with CCHF. The study was prospective, observational and non-interventional.ResultsThe study included 260 patients. Mean age was 51.3 ± 16.3 years; 158 (60.8%) were male. Mean hospital stay was 7 ± 2.6 days. The decision of discharging was taken considering clinical and laboratory findings. On discharge, no patients had fever or hemorrhage. The patients were followed-up clinically and a repeat CCHF PCR was not studied. All centers considered the following criteria for discharge: no fever and hemorrhage, improvement in clinical findings and laboratory studies. For all patients except one, platelet count was >50,000/mm3 and had a tendency to increase.Prothrombin time and international normalized ratio (INR) were normal in 258 (99.6%) and 254 (98.1%) patients respectively. Alanine aminotransferase (ALT) was either normal or not higher than 10-fold and had a tendency to decrease in 259 (99.6%) patients. ALT and aspartate aminotransferase (AST) levels were not taken as discharge criteria with priority. During 30 days following the discharge, complication, relapse, or secondary transmission were not reported.ConclusionsThe discharging practice of the centers based on clinical and laboratory parameters seems safe considering no complications, relapses, or secondary infection thereafter. Current discharge practice of the centers composed of no fever and hemorrhage, improvement in clinical findings, platelet count of either >100,000/mm3 or >50,000/mm3 with a tendency to increase, and normal bleeding tests can be used as the criteria of discharge.