Electrical impedance tomography.

Ann Transl Med

Intensive Care Unit, Henares University Hospital, Coslada-Madrid, Spain.

Published: January 2018

AI Article Synopsis

  • Continuous assessment of respiratory status is essential in modern ICU monitoring, and Electrical Impedance Tomography (EIT) may enhance mechanical ventilation optimization for critically ill patients.
  • EIT helps define ventilation settings, assess tidal volume distribution, and optimize positive end-expiratory pressure (PEEP) while evaluating the effects of different ventilator modes and maneuvers.
  • Additionally, EIT aids in managing severe lung diseases and is being explored for monitoring cardiac function and lung perfusion in critical care.

Article Abstract

Continuous assessment of respiratory status is one of the cornerstones of modern intensive care unit (ICU) monitoring systems. Electrical impedance tomography (EIT), although with some constraints, may play the lead as a new diagnostic and guiding tool for an adequate optimization of mechanical ventilation in critically ill patients. EIT may assist in defining mechanical ventilation settings, assess distribution of tidal volume and of end-expiratory lung volume (EELV) and contribute to titrate positive end-expiratory pressure (PEEP)/tidal volume combinations. It may also quantify gains (recruitment) and losses (overdistention or derecruitment), granting a more realistic evaluation of different ventilator modes or recruitment maneuvers, and helping in the identification of responders and non-responders to such maneuvers. Moreover, EIT also contributes to the management of life-threatening lung diseases such as pneumothorax, and aids in guiding fluid management in the critical care setting. Lastly, assessment of cardiac function and lung perfusion through electrical impedance is on the way.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5799136PMC
http://dx.doi.org/10.21037/atm.2017.12.06DOI Listing

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