• Stephen Trzeciak, Ismail Cinel, R Phillip Dellinger, Nathan I Shapiro, Ryan C Arnold, Joseph E Parrillo, Steven M Hollenberg, and Microcirculatory Alterations in Resuscitation and Shock (MARS) Investigators.
• Department of Emergency Medicine, Division of Critical Care Medicine, University of Medicine and Dentistry of New Jersey (UMDNJ)-Robert Wood Johnson Medical School at Camden, Cooper University Hospital, Camden, NJ, USA. trzeciak-stephen@cooperhealth.edu
• Acad Emerg Med. 2008 May 1;15(5):399-413.

AbstractMicrocirculatory dysfunction is a critical element of the pathogenesis of severe sepsis and septic shock. In this Bench-to-Bedside review, we present: 1) the central role of the microcirculation in the pathophysiology of sepsis; 2) new translational research techniques of in vivo video microscopy for assessment of microcirculatory flow in human subjects; 3) clinical investigations that reported associations between microcirculatory dysfunction and outcome in septic patients; 4) the potential role of novel agents to "rescue" the microcirculation in sepsis; 5) current challenges facing this emerging field of clinical investigation; and 6) a framework for the design of future clinical trials aimed to determine the impact of novel agents on microcirculatory flow and organ failure in patients with sepsis. We specifically focus this review on the central role and vital importance of the nitric oxide (NO) molecule in maintaining microcirculatory homeostasis and patency, especially when the microcirculation sustains an insult (as with sepsis). We also present the scientific rationale for clinical trials of exogenous NO administration to treat microcirculatory dysfunction and augment microcirculatory blood flow in early sepsis therapy.

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