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"Ultrasound vs. Landmark Technique for Spinal Anesthesia in Obese Women Undergoing Cesarean Section"
Sponsor: Bangladesh Medical University
Summary
The goal of this clinical trial is to evaluate whether the ultrasound-assisted technique improves the accuracy and safety of spinal anesthesia compared to the traditional landmark technique in obese women undergoing a cesarean section. The main questions it aims to answer are: Does the ultrasound-assisted technique reduce the number of needle attempts required for successful spinal anesthesia? Does the ultrasound-assisted technique decrease the incidence of post-dural puncture headache (PDPH) and chronic low back pain at the needle insertion site? Does the ultrasound-assisted technique reduce procedure time compared to the landmark technique? Participants will: Receive spinal anesthesia using either the ultrasound-assisted technique or the traditional landmark technique for cesarean section. Be monitored for the number of needle attempts, procedure time, and any post-operative complications such as PDPH or low back pain. Follow up for three months after the procedure to assess any long-term effects, including chronic low back pain and quality of life.
Official title: Evaluation of Ultrasound Assisted Localisation of the Intervertebral Space Versus the Traditional Landmark Technique During Subarachnoid Block for Caesarean Section in Obese Parturient
Key Details
Gender
FEMALE
Age Range
Any - Any
Study Type
INTERVENTIONAL
Enrollment
60
Start Date
2025-02-01
Completion Date
2025-11-30
Last Updated
2026-05-22
Healthy Volunteers
No
Interventions
Landmark-Guided Spinal Anesthesia
This intervention involves the use of traditional anatomical landmarks to locate the correct intervertebral space for performing subarachnoid block (SAB). The anesthesiologist identifies the L3-L4 or L4-L5 intervertebral space by palpating the iliac crests and using Tuffier's line as a reference. A 25G Quincke needle is used for SAB, and 0.5% hyperbaric bupivacaine with 25 μg fentanyl is administered. This technique is the standard approach used in many clinical settings for spinal anesthesia.
Ultrasound-Assisted Spinal Anesthesia
This intervention utilizes ultrasound guidance to identify the correct intervertebral space for performing subarachnoid block (SAB). A low-frequency (2-5 MHz) curvilinear ultrasound probe is used to visualize the lumbar spine in real-time, ensuring precise identification of the L3-L4 or L4-L5 intervertebral space. The anesthesiologist places the needle based on ultrasound images that show the anatomical structures, such as the spinous processes and interlaminar spaces. The same anesthetic agents (0.5% hyperbaric bupivacaine and 25 μg fentanyl) are administered through a 25G Quincke needle for SAB.
Locations (1)
Bangladesh Medical University
Dhaka, Bangladesh