Clinical Trial

PPV for Predicting PIH in the Elderly

Study acronym: PPVfi-PIH
Not Yet Recruiting
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Record status
This record was last updated September 10, 2025 (before its estimated October 30, 2025 completion). Its status may not reflect the trial's current state.
Summary
The purpose of this observational study is to investigate the predictive power of pulse pressure variability during forced inhalation（PPVfi） on the occurrence of hypotension in elderly patients after induction of general anesthesia. The main question it aims to answer is: Can the PPVfi predict the occurrence of hypotension in elderly patients after induction of general anesthesia? By recording the PPV of patients during forced inhalation before anesthesia induction, with the incidence of hypotension as the state variable and PPV as the test variable, the area under the ROC curve was calculated to determine the optimal threshold, sensitivity, and specificity of PPV.
Trial Details
NCT Number NCT07166562
Lead Sponsor Second Xiangya Hospital of Central South University
Conditions Hypotension on Induction
Enrollment 86 participants
Start Date 2025-09-05
Primary Completion 2025-10-30 (estimated)
Study Completion 2025-11-15 (estimated)
Updated on ClinicalTrials.gov 2025-09-10