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Intensive Care Med. 2013 May;39(5):801-10. doi: 10.1007/s00134-013-2823-1. Epub 2013 Jan 24.

Sonographic evaluation of the diaphragm in critically ill patients. Technique and clinical applications.

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1
Intensive Care Unit, Papageorgiou General Hospital, Thessaloniki, Greece. dmatamis@gmail.com

Abstract

The use of ultrasonography has become increasingly popular in the everyday management of critically ill patients. It has been demonstrated to be a safe and handy bedside tool that allows rapid hemodynamic assessment and visualization of the thoracic, abdominal and major vessels structures. More recently, M-mode ultrasonography has been used in the assessment of diaphragm kinetics. Ultrasounds provide a simple, non-invasive method of quantifying diaphragmatic movement in a variety of normal and pathological conditions. Ultrasonography can assess the characteristics of diaphragmatic movement such as amplitude, force and velocity of contraction, special patterns of motion and changes in diaphragmatic thickness during inspiration. These sonographic diaphragmatic parameters can provide valuable information in the assessment and follow up of patients with diaphragmatic weakness or paralysis, in terms of patient-ventilator interactions during controlled or assisted modalities of mechanical ventilation, and can potentially help to understand post-operative pulmonary dysfunction or weaning failure from mechanical ventilation. This article reviews the technique and the clinical applications of ultrasonography in the evaluation of diaphragmatic function in ICU patients.

PMID:
23344830
DOI:
10.1007/s00134-013-2823-1
[Indexed for MEDLINE]
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