Hemodynamics, fluids & transfusion
The predictive role of carotid artery flow time for anesthesia-induced hypotension in high-risk elderly patients
Authors' conclusion
Preoperative carotid artery FTc measurement is a simple, bedside, noninvasive, and reliable method for predicting anesthesia-induced hypotension in elderly patients.
Study context
- Population
- Patients aged 65 years and older, ASA I–III, scheduled for elective surgery, induction with propofol
- Participants
- 138 patients
- Comparison
- Preoperative carotid artery FTc for predicting post-induction hypotension
- Outcome
- Predictive accuracy of corrected carotid artery flow time (FTc) for hypotension following anesthesia induction
- Follow-up
- 3 min after induction
Methodological detailsprospective, FTc measured by ultrasound in the preoperative anesthesia unit; hemodynamics recorded at 1-minute intervals for 3 min after propofol induction, terminated before intubation
- Prospective
- FTc measured by ultrasound in the preoperative anesthesia unit; hemodynamics recorded at 1-minute intervals for 3 min after propofol induction, terminated before intubation
Performance
As reported in the abstract
Carotid artery FTc for predicting post-induction hypotension
P < 0.001
- AUC of carotid artery FTc
- 0.93 (95% CI 0.89-0.97; p < 0.001)
- Optimal cut-off
- 333 ms
- Sensitivity
- 90.4%
- Specificity
- 84.9%
Further findings
Incidence of post-induction hypotension
- Hypotension occurred
- 52 (37.7%)
Multiple logistic regression
- Carotid artery FTc the sole independent risk factor for post-induction hypotension
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
The predictive role of carotid artery flow time for anesthesia-induced hypotension in high-risk elderly patients. J Clin Monit Comput. Published 12 April 2024. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →