Key result
Noncardiac pulmonary edema exhibited greater radiotracer clearance than cardiac edema, with 111In-DTPA clearance correlating with the PCWP-COP gradient in both groups (P<0.001).
Why the study?
Does alveolocapillary membrane permeability differ between cardiac and noncardiac pulmonary edema, and how does it correlate with intravascular Starling forces?
Population
Patients with human cardiac pulmonary edema and noncardiac pulmonary edema
Comparison
Intravenous administration of 111In-labeled… vs Comparison between cardiac and noncardiac…
Design
Cohort
Follow-up
405 h
Authors
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May refine edema etiology assessment via clearance; leaves open whether permeability modulation alters outcomes.
Observational
Does alveolocapillary membrane permeability differ between cardiac and noncardiac pulmonary edema, and how does it correlate with intravascular Starling forces?
p-value: p=<0.001
Alveolocapillary membrane permeability is significantly greater in noncardiac compared to cardiac pulmonary edema, though transmicrovascular flux correlates with the PCWP-COP gradient in both conditions.
Sibbald et al. (1981) conducted an observational in Cardiac and noncardiac pulmonary edema. Noncardiac (permeability) pulmonary edema vs. Cardiac (hydrostatic) pulmonary edema was evaluated on Clearance of 111In-DTPA and 125I-HSA from blood to bronchoalveolar secretions (p=<0.001). Noncardiac pulmonary edema exhibited greater radiotracer clearance than cardiac edema, with 111In-DTPA clearance correlating with the PCWP-COP gradient in both groups (P<0.001).
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