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Can Passive Leg Raise Prevent Spinal Anesthesia-induced Hypotension During Cesarean Section?

NCT04673253 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 140

Last updated 2021-02-16

No results posted yet for this study

Summary

All over the world, spinal anesthesia is widely used in cesarean sections due to its superiority over general anesthesia. Due to reasons such as increased sensitivity to local anesthetics and increased intra-abdominal pressure in pregnant women, the frequency of hypotension increases by up to 70%. As a result of the blockage of sympathetic vasoconstrictor fibers originating from T1-L2 segments, loss of peripheral resistance, venous ponding occurs, and cardiac output decreases. Also, the level required for cesarean operation is T4 or T5, and the possibility of affecting the cardiac accelerator fibers, so bradycardia due to the increase in parasympathetic activity may deepen the hypotension. If postspinal hypotension is not managed correctly, it may lead to maternal and fetal complications. In addition to classical methods such as fluid loading and prophylactic vasoconstrictor application to prevent hypotension in pregnant women after spinal anesthesia, techniques such as wrapping the lower extremity, lifting, or applying both together have been in question.

Passive leg raise application is an easy method that allows the blood collected in the lower part of the body to participate in the central circulation with the effect of gravity. An increase in venous return occurs with the passage of blood from the lower extremities to the thorax. Thus, it leads to an increase in stroke volume and an increase in cardiac output. In this study, we aimed to determine the effectiveness of passive leg raising in preventing or reducing the depth of hypotension after spinal anesthesia in pregnant women who underwent cesarean section under spinal anesthesia.

Conditions

Interventions

OTHER

Passive leg Raise

The intervention will be performed immediately after spinal anesthesia, and passive leg raise will be performed using two standard pillows placed under the heel so that the leg is approximately 30 cm above the horizontal plane of the table. The passive leg raising position will continue until the cord is clamped.

OTHER

control

The controlled group was positioned in the normal supine position.

Sponsors & Collaborators

  • Antalya Training and Research Hospital

    lead OTHER_GOV

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-11-15
Primary Completion
2020-12-31
Completion
2021-01-31

Countries

  • Turkey (Türkiye)

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04673253 on ClinicalTrials.gov