Heart Rate Variability Monitoring to Predict Hypotension Following Spinal Anesthesia for Cesarean Delivery: Prospective Observational Study
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Cesarean Section
- Sponsor
- Seoul National University Bundang Hospital
- Enrollment
- 50
- Locations
- 1
- Primary Endpoint
- The change of averaged value
- Status
- Completed
- Last Updated
- last year
Overview
Brief Summary
Based on the patient's heart rate variability, the analgesia nociception index (ANI) measures the activity of the autonomic nervous system and the sympathetic/parasympathetic nervous system and expresses it as a numerical value through a specific algorithm. The investigators will analyze it and see if it has the ability to predict severe hypotension following spinal anesthesia.
Investigators
Hyo-Seok Na
Clinical professor
Seoul National University Bundang Hospital
Eligibility Criteria
Inclusion Criteria
- •Adult pregnant women scheduled for cesarean section under spinal anesthesia
Exclusion Criteria
- •Emergency cesarean section
- •When performing general anesthesia or epidural anesthesia
- •Multiple pregnancies
- •Surgery in which massive hemorrhage and massive blood transfusion are expected due to placenta previa
- •Cardiac arrhythmias, congestive heart failure, ischemic heart disease, congenital heart anomalies
- •Cranial nervous system disease
- •Autonomic nervous system-related underlying diseases not related to pregnancy
- •Fetal malformations
- •Those who have an allergic skin reaction to adhesive substances such as bandages
Outcomes
Primary Outcomes
The change of averaged value
Time Frame: 15 min, 10 min and 5 min before entering the operating room; every 5 min after entering the operating room
The change of averaged value presented in ANI monitor
The change of instantaneous value
Time Frame: 15 min, 10 min and 5 min before entering the operating room; every 5 min after entering the operating room
The change of instantaneous value presented in ANI monitor
Total dose of injected phenylephrine
Time Frame: During the anesthesia (from initiation of anesthesia until the end of anesthesia)
Total dose of injected glycopyrrolate
Time Frame: During the anesthesia (from initiation of anesthesia until the end of anesthesia)
The change of systolic blood pressure
Time Frame: Every 1 min after entering the operating room until finishing the operation