Ability of the PEEP-test to detect volume responsiveness
stroke
STROKE, SENSITIVITY, CARDIAC ARRHYTHMIA
A PEEP-test-induced increase in CI > 8.6% predicted a positive PLR-test with a sensitivity of 96.8% (95%CI 83.3–99.9%) and a specificity of 84.9% (95%CI 68.1–94.9%) (Additional file Area under the receiver-operating characteristic curves expressing the ability to detect volume responsiveness of changes in cardiac index, absolute changes in pulse pressure variation and changes in pulse pressure during a PEEP-test. Sensitivity and specificity of the changes in cardiac index induced by the PEEP-test depending on the test result. The gray zone represents the uncertain zone with cut-off values with a sensitivity of < 90% or a specificity of < 90%. ∆CIThe AUROC for the PEEP-test-induced changes in stroke volume was 0.93 (0.84–0.98, In the 57 patients with no cardiac arrhythmia, a decrease of PPV ≥ 1% (in absolute value) during the PEEP-test detected volume responsiveness with an AUROC of 0.81 (95%CI 0.68–0.90) (In patients in whom the R/I ratio was determined, the AUROC was similar in high and low recruiters (0.97 (0.82–1.00) 