Non-invasive Haemodynamic Monitoring to Predict Spinal Hypotension During Caesarian Section

Hospital Nord40 enrolled

Overview

Spinal anaesthesia for elective caesarean section is associated with maternal hypotension, secondary to alteration of sympathetic tone and hypovolemia, in up to 70% of cases. Our objective, in this prospective single-centre observational study, was to assess the ability of change in systolic ejection volume after 45° passive leg raising to predict hypotension after spinal anaesthesia. Systolic ejection volum was monitored with non-invasive Clearsight Device just before elective caesarean section in third trimester pregnant women.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Hypotension Pregnancy Related Spinal Anesthetics Causing Adverse Effects in Therapeutic Use

Interventions

Clearsight monitoring

Non invasive hemodynamic monitoring using a finger cuff Cardiac ultrasound performed to calculate Velocity - Time - integral (VTI) Both intervention are performed before and after a passive leg raising challenge.

Eligibility

Sex: FEMALEMin age: 18 YearsMax age: 50 Years

Medical Language ↔ Plain English

Inclusion Criteria: * third trimester pregnant women undergoing elective ceasarean section under spinal anesthesia Exclusion Criteria: * emergent ceasarean section * eclampsia or pre-eclampsia * undergoing anti-hypertensive treatment * arythmia

Outcomes

Primary Outcomes

Systolic Ejection volume (mL)

Systolic ejection volume is measured using Clearsight (non invasive monitoring device)

Time frame: 30 minutes

Secondary Outcomes

Velocity - Time - Integral (cm)

Velocity - Time - Integral is measured using transthoracic cardiac ultrasound