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.
Study Type
OBSERVATIONAL
Enrollment
44
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).
Measurement of noninvasive blood pressure, at different time points before and after the induction of 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.
Catharina Ziekenhuis
Eindhoven, North Brabant, Netherlands
Determine the predictive value of pre-anesthetic carotid parameters to predict spinal anesthesia-induced hypotension.
To determine the predictive value of pre-anesthetic corrected carotid flow time (ccFT) and peak velocity variation values for hypotension after induction of spinal anesthesia.
Time frame: Prior to surgery.
Correlation between carotid parameters and blood pressure.
To determine the correlation between the pre-anesthetic corrected carotid flow time (ccFT) and peak velocity variation on one hand and the maximal changes in systolic and mean arterial blood pressure after spinal anesthesia on the other hand.
Time frame: Trough study completion, an average of 30 minutes.
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