Title |
Recent advances in bedside microcirculation assessment in critically ill patients
|
---|---|
Published in |
Revista Brasileira de Terapia Intensiva, January 2017
|
DOI | 10.5935/0103-507x.20170033 |
Pubmed ID | |
Authors |
Philipe Franco do Amaral Tafner, Felipe Ko Chen, Roberto Rabello Filho, Thiago Domingos Corrêa, Renato Carneiro de Freitas Chaves, Ary Serpa Neto |
Abstract |
Parameters related to macrocirculation, such as the mean arterial pressure, central venous pressure, cardiac output, mixed venous saturation and central oxygen saturation, are commonly used in the hemodynamic assessment of critically ill patients. However, several studies have shown that there is a dissociation between these parameters and the state of microcirculation in this group of patients. Techniques that allow direct viewing of the microcirculation are not completely disseminated, nor are they incorporated into the clinical management of patients in shock. The numerous techniques developed for microcirculation assessment include clinical assessment (e.g., peripheral perfusion index and temperature gradient), laser Doppler flowmetry, tissue oxygen assessment electrodes, videomicroscopy (orthogonal polarization spectral imaging, sidestream dark field imaging or incident dark field illumination) and near infrared spectroscopy. In the near future, the monitoring and optimization of tissue perfusion by direct viewing and microcirculation assessment may become a goal to be achieved in the hemodynamic resuscitation of critically ill patients. |
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