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How microcirculation data have changed my clinical practice

Gustavo Luiz Büchele 1, Gustavo Adolfo Ospina-Tascon, Daniel De Backer Affiliations expand

  • PMID: 17468566

  • DOI: 10.1097/MCC.0b013e3280c1e5c5

Abstract Purpose of review: The present review discusses how microcirculation assessment, which was recently made feasible, has altered clinical practice. Recent findings: Experimental data have provided important information on microcirculation alterations in disease states. Recent advances in imaging techniques have allowed microcirculation studies in critically ill patients. Derangements in microcirculation are variable and unpredictable, associated with organ dysfunction and outcome, and can be improved by therapeutic interventions. Recent studies not only confirm the beneficial effects of some drugs on the microcirculation, but also suggest new mechanisms of actions of these drugs. In particular, the interaction between the endothelial surface and circulating cells, and especially white blood cells, seems to be crucial. Although these imaging techniques provide important information, these remain difficult to implement at the bedside. Assessment of vasoreactivity using transient occlusion tests and indirect measurements of microvascular blood flow with laser Doppler or near infrared spectroscopy may be good alternatives. Summary: Microcirculation alterations are present in shock states, mainly septic shock, and can have a prognostic role and be the target of therapeutic interventions. To date, microcirculation analysis remains in the field of clinical investigation, but recently interesting clinical data have encouraged assessment of the microcirculation at the bedside.

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