CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 100 enrolled
Drug / intervention
Ultrasound-guided preprocedural marking +1 moreprocedure
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT07549776
NCT07549776N/ACompleted

Ultrasound-guided Versus Landmark-based Spinal Anesthesia in Obese Parturients Undergoing Cesarean Section: a Randomized Controlled Trial

Instituto Nacional Materno Perinatal, Peru·interventional·Posted Apr 24, 2026·Updated Apr 24, 2026

In Brief

A clinical study evaluating Ultrasound-guided preprocedural marking and Landmark-based palpation for Obesity and Cesarean Section. Completed, enrolled 100 participants across 1 site.

Detailed Summary

Spinal anesthesia is the most commonly used technique for cesarean section. However, in obese parturients, identification of the optimal puncture site using anatomical landmark palpation can be challenging due to altered anatomy. Ultrasound has been proposed as a tool to improve localization of the puncture site. This study is a prospective randomized controlled trial including 100 obese parturients undergoing cesarean section under spinal anesthesia. Participants are randomly assigned to one of two groups: an ultrasound group, in which the puncture site is identified using preprocedural ultrasound, and a landmark group, in which the puncture site is determined using anatomical landmark palpation. The primary outcome is the first-attempt success rate. Secondary outcomes include the number of attempts, needle redirections, need for rescue interventions, incidence of adverse events during puncture, and procedural times.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesPeru
Collaborators--

Timeline

N/ACompletedFinished
2026
First PostedApr 24, 2026
Enrollment StartJul 1, 2025
Primary CompletionJan 1, 2026
TodayJul 2, 2026
Enrollment to primary: 6 monthsPosted 2 months ago

Interventions

Ultrasound-guided preprocedural markingprocedure

Preprocedural ultrasound is used to identify and mark the optimal puncture site before spinal anesthesia.

Landmark-based palpationprocedure

The puncture site is identified using anatomical landmark palpation before spinal anesthesia.