This prospective observational study aims to evaluate the predictive value of preoperative carotid Doppler ultrasound parameters, including carotid velocity-time integral (carotid VTI) and corrected carotid flow time (ccFT), for post-induction hypotension in adult patients undergoing elective non-cardiac surgery under general anesthesia. Hemodynamic instability during anesthesia induction is a common and clinically important problem associated with adverse perioperative outcomes. Carotid Doppler ultrasonography provides a rapid and non-invasive method for assessing hemodynamic status at the bedside. In this study, carotid Doppler measurements will be performed in the preoperative period and their association with post-induction hypotension will be analyzed. The results of this study may help identify patients at risk for hypotension and improve perioperative hemodynamic management.
Adult patients aged 18-65 years
None
Adult patients aged 18-65 years with American Society of Anesthesiologists (ASA) physical status I-II who are scheduled for elective non-cardiac surgery under general anesthesia will be included in this study.
Cohort
Prospective
Not listed
Post-induction hypotension
Occurrence of post-induction hypotension after anesthesia induction, defined as either a decrease in mean arterial pressure (MAP) of ≥30% from baseline or a MAP \<65 mmHg sustained for at least 1 minute.
Predictive performance of carotid Doppler parameters
Diagnostic accuracy of preoperative carotid Doppler parameters (carotid VTI and corrected carotid flow time \[ccFT\]) for predicting post-induction hypotension, including area under the receiver operating characteristic curve (AUC), sensitivity, specificity, and optimal cut-off values.
Click on the lead sponsor to view all of their trials.
This trial is not recruiting at the moment. You can still explore other options:
