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Development of Advanced Double Intravenous Vasopressor Automated (ADIVA) System
Sponsor: KK Women's and Children's Hospital
Summary
Maternal hypotension during spinal anaesthesia for Caesarean delivery may bring various adverse effects. It is therefore important to closely monitor hypotension during spinal anaesthesia, however current technology does not allow the blood pressure monitoring to respond in timely manner should there be any occurrence of hypotension. The investigators developed an advanced double-intravenous vasopressor automated system (ADIVA) so as to tackle this issue via novel algorithm to control blood pressure more rigorously with more stable haemodynamic profiles.
Official title: Development of Advanced Double Intravenous Vasopressor Automated (ADIVA) System With Improved Hemodynamic Trend Control During Spinal Anaesthesia for Caesarean Section
Key Details
Gender
FEMALE
Age Range
21 Years - 50 Years
Study Type
INTERVENTIONAL
Enrollment
173
Start Date
2018-11-07
Completion Date
2026-12-31
Last Updated
2024-10-09
Healthy Volunteers
No
Conditions
Interventions
Phenylephrine
Phenylephrine will be administered with conditions as below: 1. When systolic blood pressure is between 90-110% of baseline, 25mcg phenylephrine will be given either in infusion or bolus if heart rate ≥ 60 beats/min; 2. When systolic blood pressure is less than 90% of baseline, 25 to 75mcg phenylephrine will be given either in infusion or bolus if heart rate ≥ 60 beats/min.
Ephedrine
Ephedrine will be administered with conditions as below: 1. When systolic blood pressure is between 90-110% of baseline, 2mg ephedrine will be given either in infusion or bolus if heart rate \< 60 beats/min; 2. When systolic blood pressure is less than 90% of baseline, 2 to 6mg ephedrine will be given either in infusion or bolus if heart rate \< 60 beats/min.
ADIVA System
1. When systolic blood pressure (SBP) is 100-110% of baseline, 25mcg phenylephrine (infusion) is given if heart rate ≥ 60 beats/min, and 2mg ephedrine (infusion) is given if heart rate \< 60 beats/min; 2. When SBP is 90-100% of baseline, 25mcg phenylephrine (infusion or bolus) is given if heart rate ≥ 60 beats/min, and 2mg ephedrine (infusion or bolus) is given if heart rate \< 60 beats/min; 3. When SBP is 80-90% of baseline, 50mcg phenylephrine (infusion or bolus) is given if heart rate ≥ 60 beats/min, and 4mg ephedrine (infusion or bolus) is given if heart rate \< 60 beats/min; 4. When SBP \< 80% of baseline, 75mcg phenylephrine (infusion or bolus) is given if heart rate ≥ 60 beats/min, and 6mg ephedrine (infusion or bolus) is given if heart rate \< 60 beats/min.
DIVA System
DIVA system works as below: 1. When systolic blood pressure is between 90 to 100% of baseline, 25mcg phenylephrine (bolus) will be given if heart rate ≥ 60 beats/min, whereas 2mg ephedrine (bolus) will be given if heart rate \< 60 beats/min; 2. When systolic blood pressure is less than 90% of baseline, 50mcg phenylephrine (infusion or bolus) will be given if heart rate ≥ 60 beats/min, whereas 4mg ephedrine (infusion or bolus) will be given if heart rate \< 60 beats/min.
Locations (1)
KK Women's and Children's Hospital
Singapore, Singapore