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
Overview
- Phase
- Not Applicable
- Intervention
- Carotid ultrasound measurement
- Conditions
- Spinal Anesthesia-induced Hypotension
- Sponsor
- Catharina Ziekenhuis Eindhoven
- Enrollment
- 44
- Locations
- 1
- Primary Endpoint
- Determine the predictive value of pre-anesthetic carotid parameters to predict spinal anesthesia-induced hypotension.
- Status
- Completed
- Last Updated
- last year
Overview
Brief 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.
Investigators
Joris Van Houte
Principal investigator
Catharina Ziekenhuis Eindhoven
Eligibility Criteria
Inclusion Criteria
- •Adult patients of either sex who are scheduled for elective surgery under spinal anesthesia,
- •Who fasted for 6 hours or more
Exclusion Criteria
- •Age \<18 years old
- •No informed consent for study participation
- •Contra-indication for spinal anesthesia
- •Emergency surgery
- •Known poor left or right ventricular function / heart failure
- •Moderate to severe valvular disease
- •Atrial fibrillation
- •Pacemaker rhythm
- •Carotid artery stenosis \> 50%
- •History of cerebrovascular accident (CVA) or transient ischemic attack (TIA)
Arms & Interventions
Hypotensive patients
Patients who developed hypotension after the induction of spinal anesthesia.
Intervention: Carotid ultrasound measurement
Hypotensive patients
Patients who developed hypotension after the induction of spinal anesthesia.
Intervention: Vital sign measurement
Hypotensive patients
Patients who developed hypotension after the induction of spinal anesthesia.
Intervention: Spinal anesthesia
Normotensive patients
Patients who did not develop hypotension after the induction of spinal anesthesia.
Intervention: Carotid ultrasound measurement
Normotensive patients
Patients who did not develop hypotension after the induction of spinal anesthesia.
Intervention: Vital sign measurement
Normotensive patients
Patients who did not develop hypotension after the induction of spinal anesthesia.
Intervention: Spinal anesthesia
Outcomes
Primary Outcomes
Determine the predictive value of pre-anesthetic carotid parameters to predict spinal anesthesia-induced hypotension.
Time Frame: Prior to surgery.
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.
Secondary Outcomes
- Correlation between carotid parameters and blood pressure.(Trough study completion, an average of 30 minutes.)