NCT06711289

Predicting if the Blood Pressure Will Drop After Spinal Anesthesia Using Ultrasound of the Neck

Prediction of Hypotension After Spinal Anesthesia by Doppler Measurement of the Corrected Carotid Flow Time and the Peak Velocity Variation Within the Common Carotid Artery

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 44 (actual)
• Sponsor: Catharina Ziekenhuis Eindhoven · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

After a spinal injection, blood pressure might drop for a short time, similar to what happens with general anesthesia. This drop can be different for each person. An anesthesiologist will use medicine to bring the blood pressure back to normal. If this drop could be predicted in advance, it would help the anesthesiologist treat it faster, making the procedure even safer and preventing side effects like dizziness or nausea.

Conditions

• Spinal Anesthesia-induced Hypotension

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	Carotid ultrasound measurement	Pulsed-wave Doppler acquisition of the carotid artery. One acquisition will be made with the slow-speed setting (33 mm/s) and one with the medium-speed setting (66 mm/s).
DIAGNOSTIC_TEST	Vital sign measurement	Measurement of noninvasive blood pressure, at different time points before and after the induction of spinal anesthesia.
DRUG	Spinal anesthesia	Following the standard of care, the patients received spinal anesthesia. The type and dosage of the local anesthetic were at the discretion of the treating anesthesiologist.

Timeline

• Start date: 2023-04-12
• Primary completion: 2023-09-29
• Completion: 2023-09-29
• First posted: 2024-12-02
• Last updated: 2024-12-02

Locations

1 site across 1 country: Netherlands