Measuring carotid blood flow in pregnant women during cesarean delivery
Official title: Evaluation of the Effectiveness of Carotid Flow Measurements in Predicting Post-Spinal Hypotension in Pregnant Women
Run by Haseki Training and Research Hospital · NCT06813989 · Data updated 2026-11-12
This study is testing how changes in blood flow in the neck affect low blood pressure in pregnant women aged 20-40 during cesarean delivery after receiving spinal anesthesia.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 20 Years to 40 Years |
| Sex | Women only |
| Enrollment | 60 (estimated) |
| Sponsor | Haseki Training and Research Hospital Academic / other |
| Locations | 1 site (Istanbul) |
| Status | Recruiting |
| Started | February 15, 2025 |
| Main results expected | May 15, 2025 |
| Study ends | June 1, 2025 |
| Registry record updated | March 18, 2025 |
| Trial ID | NCT06813989 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are uncomplicated term pregnant women aged 20-40 classified as ASA 1-2.
✕Probably not a fit
Patients with preeclampsia, eclampsia, or other contraindications for spinal anesthesia will not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study aims to investigate the relationship between carotid blood flow changes and post-spinal hypotension in pregnant women aged 20-40 undergoing cesarean delivery. Using Doppler ultrasound, the study will measure the diameter and flow velocity of the left carotid artery before and after spinal anesthesia. Participants will be monitored for hemodynamic changes and hypotension during the procedure, with data collected on carotid flow measurements and fluid administration. The goal is to understand how these measurements correlate with the incidence of hypotension following spinal anesthesia.
Why it matters
Potential benefit: If successful, this study could improve the management of spinal anesthesia in pregnant women, potentially reducing the incidence of postspinal hypotension.
How similar studies have gone: While the approach of measuring carotid flow in this context is relatively novel, similar studies have explored hemodynamic monitoring during anesthesia with varying degrees of success.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * "Uncomplicated term pregnant women aged 20-40 years classified as ASA 1-2. Exclusion Criteria: * Those diagnosed with preeclampsia or eclampsia or with systolic blood pressure above 160 Individuals with arrhythmia Individuals with contraindications for spinal anesthesia Individuals with Ba MI over 40 Those with a gestational age under 36 weeks or over 41 weeks Individuals with chronic kidney insufficiency (GRF under 60) Those with carotid stenosis or a history of previous cerebrovascular events Patients with placental anomalies Those initially planned for expected delivery but later switched to cesarean after being taken to trauma. Patients were taken to the operating room with an emergency cesarean decision In case of failed spinal anaesthesia, those who switched to general anaesthesia before delivery
Where it's running
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Haseki Training and Research Hospital
Istanbul, Turkey (Türkiye) Recruiting
Study contacts
- Principal investigator: Berna Caliskan, MD — Haseki Training and Research Hospital
- Study coordinator: Berna Caliskan, MD
- Email: caliskan.b@gmail.com
- Phone: 05067108770
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Predicting low blood pressure after spinal anesthesia in cesarean deliveries using neck vein collapsibility and perfusion index
This study tests whether preoperative neck vein collapsibility and a pulse oximetry-based perfusion index can predict post-spinal hypotension in women undergoing elective cesarean sections.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.