Predictive value of PI and PVI combined with heart rate for hypotension during painless gastrointestinal endosco-py based on cardiopulmonary interaction
FU Zi-hui
JING Ming
ZHANG Xiao-kun
SHI Chang-xi
XIAO Jiang-qiang
ZHANG Yi-yang
LYU Ying
FU Qun
Abstract：Objective To explore the accuracy of non-invasive monitoring indices,including pulse oximeter perfusion index(PI)and pulse variation index(PVI),combined with heart rate(HR)in predicting hypotension during painless gastrointestinal endoscopy based on cardiopulmonary interaction.Methods Data from 108 patients undergoing painless gastrointestinal endoscopy were collected and divided into two groups based on the occurrence of hypotension dur-ing the procedure:a hypotension group and a non-hypotension group.All patients were monitored for SpO2,HR,mean arterial pressure(MAP),PI,PVI,and electrocardiogram parameters.The changes in HR,PI,and PVI before and after drug administration(△ HR,△PI,and △ PVI)were calculated.Receiver operating characteristic(ROC)curves were used to evaluate the predictive performance of HR,PI,PVI,△ HR,△PI,△ PVI,and their combinations for hypoten-sion.Results Compared to patients without hypotension,those with hypotension demonstrated better predictive perform-ance when combining △ HR,△PI,and △ PVI.The area under the ROC curve(AUC)for △ HR+△PI+△ PVI was 0.803(95％CI:0.714-0.893,P＜0.001),with a sensitivity of 0.816,specificity of 0.781,and Youden index of 0.597.The AUC for △ HR+△PI was 0.763(95％CI:0.663-0.863,P＜0.001),with a sensitivity of 0.789,speci-ficity of 0.687,and Youden index of 0.476.The AUC for △ HR+△ PVI was 0.717(95％CI:0.620-0.814,P＜0.001),with a sensitivity of 0.526,specificity of 0.937,and Youden index of 0.463.Conclusion The combination of HR with either PI,PVI,or both can be utilized as a common monitoring index to predict hypotension during painless gas-trointestinal endoscopy,thereby reducing its incidence.
Keywords：cardiopulmonary interactionnon-invasive monitoringperfusion indexpulse variation indexpainless gastrointestinal endoscopyhypotension prediction
Publication Date：2025-02-15
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 272-277 )