Abstract:
:The gas exchange and hemodynamics were evaluated before, during, and after a two-hour period of prone position in 13 moderate-severe ARDS patients. Lung computerized tomography was obtained in both the supine and prone positions in two of these patients. Average arterial oxygenation improved after prone positioning (p less than 0.01). A PaO2 improvement of at least 10 mm Hg after 30 minutes of prone position was used as a criterion to discriminate between responders and nonresponders to the postural change. Eight patients met the "responders" group criterion, and in the five nonresponder patients, the PaO2 did not change significantly throughout the study. Computerized tomograms in the prone position showed disappearance of posterobasal densities and appearance of new densities in the anterior regions, in both patients studied. One of these was a responder, the other a nonresponder. A brief test period in prone position is indicated in ARDS patients to identify those who may benefit from this postural treatment. The definite mechanism of the arterial oxygenation improvement observed remains to be clarified.
journal_name
Chestjournal_title
Chestauthors
Langer M,Mascheroni D,Marcolin R,Gattinoni Ldoi
10.1378/chest.94.1.103subject
Has Abstractpub_date
1988-07-01 00:00:00pages
103-7issue
1eissn
0012-3692issn
1931-3543pii
S0012-3692(16)39915-9journal_volume
94pub_type
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