Acute Circulatory Failure Clinical Trial
Official title:
Effects of Therapeutic Hemodynamic Interventions on Peripheral Perfusion in Intensive Care
Tissue perfusion has been identified as an early prognosis factor in patients admitted to intensive care. However, little is known about the effects of different hemodynamic interventions performed in clinical routine on peripheral tissue perfusion. The aim of this work is to study the kinetics of CRT and local skin blood flow following therapeutic intervention (fluid challenge, vasopressor or inotropic drug).
Sepsis is today a major cause of morbidity and mortality worldwide. Septic shock, the most serious manifestation of the infection, affects 2 to 20% of intensive care patients. Despite appropriate antibiotic therapy and improved resuscitation strategies based on early treatment, volume expansion and rational use of vasopressors, the mortality rate of shock states remains too high, between 40 and 50%. Over the past two decades, great advances have been made in the understanding the pathophysiology of septic shock. Microcirculatory abnormalities have been identified as the main cause of organ hypoperfusion and visceral failure leading to death. In addition, several studies in animals and humans have highlighted a discordance between systemic hemodynamic parameters and alterations of small vessels during shock suggesting that microvascular blood flow and tissue perfusion should be analyzed in patients with acute circulatory failure in association with blood pressure and cardiac output. Capillary refill time (CRT), is an easy-to-use, easy-to learn tool to evaluate peripheral tissue perfusion. CRT is a strong predictive factor of organ failure severity and poor outcome in critically ill patients with sepsis. A recent randomized trial reported promising results regarding the use of CRT to guide resuscitation. However, little is known about the impact of treatment on CRT. The aim of this work is to study the kinetics of CRT and local skin blood flow following therapeutic intervention (fluid challenge, vasopressor or inotropic drug). ;
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