Evaluation of the Effect of Ketanserine on Sublingual Microcirculation by SDF Imaging in Septic Patients on the Intensive Care

This is a pilot study, including 10 ICU patients with severe sepsis with MFI < 2,5 after fulfillment of a strict resuscitation protocol. At the start of the study, a baseline SDF measurement is made, when MFI < 2,5 inclusion in the study is permitted and intravenous ketanserin administration is started and subsequently increased, guided by the effect on sublingual MFI, until a safe maximum dosage is reached. Safety margins for hypotension are defined in the study protocol.