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Chinese Journal of Critical Care & Intensive Care Medicine(Electronic Edition) ›› 2018, Vol. 04 ›› Issue (02): 190-194. doi: 10.3877/cma.j.issn.2096-1537.2018.02.016

Special Issue:

• Review • Previous Articles     Next Articles

Bedside ultrasound evaluation of diaphragmatic function in mechanically ventilated patients

Xiaoting Xu1, Ling Liu1,()   

  1. 1. Department of Critical Care Medicine, Zhongda Hospital, Southeast University, Nanjing 210009, China
  • Received:2017-07-28 Online:2018-05-28 Published:2018-05-28
  • Contact: Ling Liu
  • About author:
    Corresponding author: Liu Ling, Email:

Abstract:

Diaphragm dysfunction has a high incidence in critically ill patients, which is the cause of respiratory failure and prolonged weaning, and is easily overlooked. In the past, traditional methods to evaluate the structure and function of diaphragm were traumatic, lacking specificity and not convenient for bedside application. Ultrasound evaluation of diaphragmatic function and structure is accurate, safe and non-invasive. Bedside ultrasound assessed diaphragm function could be diaphragmatic inspiratory excursion, thickness of diaphragm (Tdi), and thickening fraction (TF). Diaphragm ultrasound is used to identify diaphragmatic dysfunction or diaphragmatic paralysis, to monitor the degree of diaphragm atrophy and the capability of respiratory muscles workload and patient-ventilator synchrony, and also to predict weaning. This article reviewed the progress and problems with bedside ultrasound assessment of the diaphragmatic function in mechanical ventilated patients and provided guidance to the clinical use of this technique.

Key words: Bedside ultrasound, Mechanical ventilation, Diaphragm function

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