Original study evaluates Doppler carotid blood flow and PLR to determine fluid responsiveness in ICU patients, indicating practical applications.
Key Points
This study aims to assess the effectiveness of Doppler carotid blood flow variation in predicting fluid responsiveness using passive leg raising in shock patients.
Evaluated Doppler carotid blood flow variation and other parameters during passive leg raising in patients with shock.
Sample size of 35 patients with varied etiology admitted to an ICU was analyzed.
Measured cardiac output variation and stroke volume variation along with carotid blood flow variation.
Seventeen out of 35 patients were fluid responsive and 18 nonresponsive.
Strong correlations were found between cardiac output variation, stroke volume variation, and carotid flow time variation during PLR.
A CBFV cut-off of 8.5% achieved 82% sensitivity and 83% specificity for detecting fluid responsiveness.