When spinal or epidural anesthesia is insufficient and a cesarean delivery is converted to general anesthesia

Insufficient Regional Anesthesia and Conversion to General Anesthesia for Cesarean Section A Qualitative Multicenter Study

Sygehus Lillebaelt · NCT06669156

This project will see how and why regional anesthesia sometimes fails and how women and clinical teams handle conversion to general anesthesia during cesarean delivery.

Quick facts

Study typeObservational
Enrollment30 (estimated)
Ages18 Years and up
SexFemale
SponsorSygehus Lillebaelt (other)
Locations7 sites (Viborg, Region Midt and 6 other locations)
Trial IDNCT06669156 on ClinicalTrials.gov

What this trial studies

This is a multicenter qualitative observational project carried out at several Danish hospitals that collects information on cases where spinal, epidural, or combined spinal-epidural anesthesia is converted to general anesthesia after surgery has started. Researchers will gather clinical details and likely conduct interviews or structured debriefs with patients and clinical staff to capture experiences, decision-making, and sequence of events. The focus is on conversions that occur because the regional block proved insufficient, excluding conversions for obstetric indications. Findings will be used to identify common causes, communication issues, and opportunities to improve safety and patient experience.

Who should consider this trial

Good fit: Women over 17 years having elective or emergency cesarean delivery whose regional anesthesia is converted intraoperatively to general anesthesia and who speak Danish or English and consent to participate.

Not a fit: Women who did not experience intraoperative conversion, who were converted for obstetric extraction reasons, who are under 18, or who do not speak Danish or English are not eligible and would not benefit from these results directly.

Why it matters

Potential benefit: If successful, the findings could lead to better protocols, communication, and preparation that reduce the chance of unexpected pain or emergency conversions and improve patient experience and safety.

How similar studies have performed: Previous research has documented the incidence and risks of failed regional anesthesia in cesarean delivery, but multicenter qualitative work focusing on patient and clinician experiences of intraoperative conversion is relatively limited.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Women undergoing elective or emergency cesarean section, aged over 17 years
* Regional (spinal or epidural or combined epidural-spinal) anesthesia converted to general anesthesia intraoperatively (i.e., after surgery has commenced) due to insufficient regional anesthesia (i.e., not for obstetric indications, such as in cases of difficult fetal extraction)

Exclusion Criteria:

* Does not speak Danish or English
* Does not wish to participate

Where this trial is running

Viborg, Region Midt and 6 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Cesarean Section Complications, Cesarean Section Pain, Regional Anesthesia

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.