Evaluating ultrasound landmarks for spinal anesthesia in cesarean sections
Ultrasound Evaluation Of Two Anatomic Landmarks In Spinal Anesthesia For Cesarean Section: The Posterior Superior Iliac Spine vs Iliac Crest
This study is testing if using ultrasound to find certain points on the back can help doctors give spinal anesthesia more accurately to pregnant women having cesarean sections.
Quick facts
| Study type | Observational |
|---|---|
| Enrollment | 660 (estimated) |
| Sex | Female |
| Sponsor | The Third Affiliated Hospital of Guangzhou Medical University Academic / other |
| Locations | 1 site (Guangzhou, Guangdong) |
| Trial ID | NCT06711601 on ClinicalTrials.gov |
What this trial studies
This study evaluates the accuracy of two anatomical landmarks, the Posterior Superior Iliac Spine (PSIS) and the Intercristal line, for identifying the lumbar intervertebral space in pregnant women undergoing spinal anesthesia for cesarean sections. It consists of two phases: the first phase measures the distance between the PSIS line and each intervertebral space using ultrasound, while the second phase involves 180 participants who will use these landmarks to define specific lumbar spaces. The goal is to provide a more reliable method for spinal anesthesia administration.
Who should consider this trial
Good fit: Ideal candidates for this study are pregnant women between 37-41 weeks of gestation who are planning to undergo a cesarean section.
Not a fit: Patients with contraindications to intraspinal anesthesia or those with significant lumbar anatomical issues may not benefit from this study.
Why it matters
Potential benefit: If successful, this study could enhance the safety and accuracy of spinal anesthesia in pregnant women during cesarean sections.
How similar studies have performed: While there have been studies on spinal anesthesia techniques, this specific evaluation of ultrasound landmarks is relatively novel.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * After obtaining written informed consents,pregnant women at 37-42 weeks of gestation Exclusion Criteria: * BMI ≥ 40 kg/m² (to minimize palpation variability), History of lumbar surgery/deformity (scoliosis, spondylolisthesis or osteoporotic vertebral collapse), Inability to maintain the flexed lateral decubitus position, Participant withdrawal, Unforeseen anatomical anomalies discovered during screening.
Where this trial is running
Guangzhou, Guangdong
- The Third Affiliated Hospital of Guangzhou Medical University — Guangzhou, Guangdong, China (Recruiting)
Study contacts
- Study coordinator: Wenhua Zhang, PhD
- Email: zhangcobra@126.com
- Phone: +86 13611453199
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.