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High BMI may raise risk of failed spinal block during C-Section, study finds

NCT ID NCT07367386

Knowledge-focused Sponsor: Mariah Arif Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked back at medical records of nearly 2,000 severely obese pregnant women (BMI 45 or higher) who had a C-section. The goal was to see if higher body weight made it more likely that the spinal anesthesia would fail, requiring general anesthesia instead. Researchers also checked for side effects in the mother and baby, like low blood pressure or low Apgar scores.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

1,917 people

The number who actually took part.

Started

Feb 2025

Finished

Jan 2026

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Class III Obese parturients undergoing C-section under neuraxial blocks in the operating rooms of Women's Wellness and Research Center from 1 January 2025 to 1 December 2024.

Ages

18 years and older

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age \> or equal to 18 years * BMI ≥ 45 kg/m² * Gestational age ≥ 28 weeks Exclusion Criteria: * Age \< 18 years * BMI \< 45 kg/m² * History of venous thromboembolism or arterial disease (e.g., DVT, PE, angina, MI, or stroke) * Severe active lung, cardiovascular, renal, or liver disorders; autoimmune disease; or hemoglobinopathies * Hereditary or acquired thrombophilia (e.g., Factor V Leiden mutation or antithrombin deficiency) * In utero fetal demise (IUFD) * Failed operative vaginal delivery * Cesarean for the second twin or multiple pregnancies (triplets or higher) * IVF pregnancy * Intraoperative bleeding\>1500mL * Emergency cesarean section (Category I) * Presence of large uterine fibroid ≥10 cm

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Conditions

The condition(s) this trial relates to.

Obesity

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Neuraxial blocks

Contacts and locations

Locations

  • Women's Wellness and Research Center

    Doha, Qatar