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Am. J. Respir. Crit. Care Med., Volume 160, Number 1, July 1999, 69-76

Right Heart Catheterization in Acute Lung Injury
An Observational Study

WILLIAM A. MARINELLI, CRAIG R. WEINERT, CYNTHIA R. GROSS, JOHN P. KNOEDLER Jr., CARON L. BURY, JAMES R. KANGAS, and JAMES W. LEATHERMAN

Hennepin County Medical Center and University of Minnesota Academic Health Center, Minneapolis, Minnesota

Right heart catheterization (RHC) is commonly used in the diagnosis and management of acute lung injury (ALI). However, controversy exists regarding RHC. We examined RHC use during the first 3 d of ALI in an observational study of 135 patients defined by American-European Consensus Conference criteria. Study parameters examined for association with RHC included the Acute Physiology and Chronic Health Evaluation (APACHE) III score, lung injury score (LIS), and 20 additional epidemiologic, clinical, and laboratory parameters. RHC was performed in 70 patients (52%) within the first 3 d of ALI. RHC was positively associated (p < 0.05) with a diagnosis of sepsis, APACHE III score, blood urea nitrogen (BUN), creatinine, net fluid balance, and positive end-expiratory pressure. RHC was negatively associated (p < 0.05) with mean arterial pressure (<OVL>Pa</OVL>) and PaO2/FIO2. Logistic regression identified four predictors for RHC placement: sepsis, PaO2/FIO2, BUN, and <OVL>Pa</OVL>. Initial right atrial and pulmonary artery occlusion pressure measurements demonstrated a moderately strong correlation (r = 0.72). Use of RHC was associated with a change in one or more therapeutic interventions (intravascular fluids, vasopressors, diuretics) in 78% of patients. In summary, patients receiving RHC during the first 3 d of ALI were more severely ill than those who did not receive RHC, and RHC was associated with a change in therapy in most patients.




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Copyright © 1999 American Thoracic Society