Evaluation of density area in dorsal lung region during prone position using transesophageal echocardiography
- 1 January 2004
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Critical Care Medicine
- Vol. 32 (1), 83-87
- https://doi.org/10.1097/01.ccm.0000104944.18636.b2
Abstract
To evaluate the changes of density area in the dorsal lung regions of acute respiratory distress syndrome patients during prone position using transesophageal echocardiography.Retrospective clinical study.General intensive care unit in a university hospital.Ten patients with acute respiratory distress syndrome who underwent prone position therapy.Density areas in the left dorsal lung region were observed using transesophageal echocardiography before and after patients were in the prone position for 2 hrs. In five patients, a pediatric transesophageal echocardiography probe was left in the esophagus and used for observation during the prone procedure.Changes of density area and PaO2/FiO2 were observed. The density areas decreased after prone position compared with those of preprone position (preprone 11.4 +/- 5.1 cm2, after prone 5.6 +/- 3.5 cm2, mean +/- sd, p <.01, respectively). There was also a significant correlation between the percentage change of density area and PaO2/FiO2 (r =.47, p <.05) after prone position. During prone position, the density area decreased; however, there was no correlation between the percent changes of density area and PaO2/FiO2.It was possible to observe the change in density area during prone position using transesophageal echocardiography. The change of density area estimated with transesophageal echocardiography during prone position was useful to estimate the effectiveness of the procedure.Keywords
This publication has 17 references indexed in Scilit:
- Density Detection in Dependent Left Lung Region Using Transesophageal EchocardiographyAnesthesiology, 2001
- Effects of the prone position on gas exchange and hemodynamics in severe acute respiratory distress syndromeCritical Care Medicine, 1998
- Effects of the Prone Position on Respiratory Mechanics and Gas Exchange during Acute Lung InjuryAmerican Journal of Respiratory and Critical Care Medicine, 1998
- Computed tomography in adult respiratory distress syndrome: what has it taught us?European Respiratory Journal, 1996
- Distribution of Regional Density and Vascular Permeability in the Adult Respiratory Distress SyndromeAmerican Journal of Respiratory and Critical Care Medicine, 1995
- Influence of Positioning on Ventilation-Perfusion Relationships in Severe Adult Respiratory Distress SyndromeSocial psychiatry. Sozialpsychiatrie. Psychiatrie sociale, 1994
- Vertical gradient of regional lung inflation in adult respiratory distress syndrome.American Journal of Respiratory and Critical Care Medicine, 1994
- Definitions for Sepsis and Organ Failure-ReplyJAMA, 1993
- Body Position Changes Redistribute Lung Computed-Tomographic Density in Patients with Acute Respiratory FailureAnesthesiology, 1991
- Morphological response to positive end expiratory pressure in acute respiratory failure. Computerized tomography studyIntensive Care Medicine, 1986