Skip to content

Effects of different positions for elective cesarean delivery under spinal anesthesia on the collapse index of the inferior vena cava and fetal umbilical blood flow: a randomized controlled study

Effects of different positions for elective cesarean delivery under spinal anesthesia on the collapse index of the inferior vena cava and fetal umbilical blood flow: a randomized controlled study

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2200061810
Enrollment
Unknown
Registered
2022-07-03
Start date
2022-06-20
Completion date
Unknown
Last updated
2023-04-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

spinal hypotension during cesarean delivery

Interventions

Supine group:supine position before and after anesthesia
15 degree left lateral group:15 left lateral position before and after anesthesia
30 degree left lateral group:30 left lateral position before and after anesthesia

Sponsors

Shanghai First Maternity and Infant Hospital, school of Medicine, Tongji University
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to 45 Years

Inclusion criteria

Inclusion criteria: 1. Women of American Society of Anesthesiologists (ASA) physical status II; 2. Aged 18-45 years; 3. Body mass index (BMI) 18.5-30 kg.m-2; 4. Women with a singleton fetus, gestational age >= 37 weeks, singleton undergoing elective cesarean section under spinal anesthesia were included; 5. Voluntary participation and signed informed consent form.

Exclusion criteria

Exclusion criteria: 1. Complicated with systemic diseases or chronic diseases (previous or new heart diseases, pregnancy-induced hypertension, preeclampsia, diabetes, cardiovascular and cerebrovascular diseases or kidney diseases); 2. Giant fetus or intrauterine growth restriction, polyhydramnios or oligohydramnios; 3. There are contraindications of spinal anesthesia; 4. Ten minutes after anesthesia, the plane did not reach T6.

Design outcomes

Primary

MeasureTime frame
inferior vena cava index;

Secondary

MeasureTime frame
inferior vena cava maximum (expiratory) IVC diameter;inferior vena cava minimum (inspiratory) IVC diameter;fetal umbilical blood flow;Apgar score;cord blood gas analysis;spinal hypotension;Total amount of vasoactive drugs;

Countries

China

Contacts

Public ContactZhou Shuangqiong

Shanghai First Maternity and Infant Hospital, school of Medicine, Tongji University

zsq628628@163.com+86 13916174158

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026