hypotension after spinal anesthesia during cesarean section
Conditions
Interventions
Gold Standard:Systolic blood pressure is less than 80% below the base value
Index test:Ultrasonic measurement of cCFT and ? Vpeak
Sponsors
Beijing You'an Hospital, Capital Medical University
Eligibility
Sex/Gender
Female
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: The women who underwent elective cesarean section were ASA ?~?, aged 18~40 years, gestational age =37w, and singleton pregnancy
Exclusion criteria
Exclusion criteria: There was severe supine hypotension syndrome before surgery,contraindication of spinal anesthesia(coagulation disorder, local anesthetic allergy, puncture site infection),severe cardiovascular disease (such as congenital heart disease, coronary heart disease, severe valvular disease, history of peripheral artery disease, arrhythmia, carotid plaque or severe stenosis, etc.), diabetes, pre-eclampsia, neurological disorders, and a history of mental illness that prevents cooperation
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Blood pressure;Predictive critical value of carotid artery corrected flow time(cCFT);Predictive critical value of respirophasic variation in blood flow peak velocity(dVpeak); | — |
Secondary
| Measure | Time frame |
|---|---|
| Sensitivity of cCFT;Sensitivity of dVpeak;Specificity of cCFT;Specificity of dVpeak;AUC of cCFT;AUC of dVpeak;Heart rate;Anesthesia level;Dosage of vasopressor drugs such as ephedrine or methoxamine;Total infusion volume at 10 minutes after delivery of the baby;Nausea and vomiting during surgery;Neonatal apgar score; | — |
Countries
China
Contacts
Public ContactShuai Hao/Yun Wang
Beijing You'an Hospital, Capital Medical University; Beijing Friendship Hospital
Outcome results
None listed