Previous studies have demonstrated that altered microvascular blood flow is an important marker of severe sepsis. Usually, these patients need invasive ventilatory support, frequent use of sedatives and it is unknown if these agents interfere or not on microvascular blood flow. The goal of this study was to compare effects of propofol and midazolam infusions on sublingual microcirculation of septic shock patients.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
SINGLE
Enrollment
16
Septic patients, after intubation, were initially sedated with propofol. During the second day of mechanical ventilation, propofol infusion was interrupted. When the patient awoke, the sedative drug was changed to midazolam. Sedation target was a Ramsay Scale score of 4 to 5.
Casa de Saude Sao Jose
Rio de Janeiro, Rio de Janeiro, Brazil
Sublingual Microcirculatory Variables
Patients were sedated with propofol during the first 24 hours after intubation and with midazolam afterwards.Systemic hemodynamics and perfusion parameters were assessed at two time points: just before stopping propofol and thirty minutes after the start of midazolam infusion. At both steps, four microcirculatory sequences were acquired using sidestream darkfield imaging to access sublingual microcirculation
Time frame: Just before stopping propofol and thirty minutes after the start of midazolam infusion
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