Preoperative Carotid Doppler Ultrasound Parameters for Prediction of Post-Induction Hypotension in Elective Non-Cardiac Surgery

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Conditions studied: Post Induction Hypotension, Postoperative Morbidity

In brief

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.

Key facts

Study ID

NCT07488182

Run by

Necmettin Erbakan University

People needed

110

Starts

2026-09-01

Expected to finish

2027-09-01

Last updated by the study team

2026-03-23

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Adult patients aged 18-65 years
• American Society of Anesthesiologists (ASA) physical status I-II
• Scheduled for elective non-cardiac surgery under general anesthesia
• Planned endotracheal intubation
• Ability to provide written informed consent

You may not qualify if…

• Refusal to participate in the study
• Planned emergency surgery
• Planned cardiac surgery
• Presence of carotid artery stenosis greater than 50%
• Moderate to severe valvular heart disease
• Presence of atrial fibrillation or significant arrhythmia
• Advanced heart failure
• Preoperative hypotension or hemodynamic instability
• Inability to obtain reliable ultrasonographic measurements

Where it is running

• Necmettin Erbakan University — Konya, Turkey (Türkiye)

Full record on ClinicalTrials.gov

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