Comparing Ultrasound-Guided Erector Spinae Plane Block and Oblique Subcostal Transversus Abdominis Plane Block for Pain Relief After Colorectal Surgery

What this Trial Is About

Researchers are comparing two types of pain relief techniques, the ultrasound-guided bilateral erector spinae plane block ESPB and the oblique subcostal transverse abdominal plane block OSTAPB, for managing pain after colorectal surgery. Colorectal surgery treats various digestive system conditions, including cancers and inflammatory diseases. ESPB is a newer method targeting specific spinal nerves, while OSTAPB involves injecting anesthetics between abdominal muscle layers. Participants will receive either the ESPB or OSTAPB using ultrasound guidance before their colorectal surgery under general anesthesia. The study randomly assigns patients to one of these two groups to evaluate which method provides better pain control after surgery. Both treatments involve local anesthetic injections to block nerve signals responsible for pain. During the study, participants will be monitored for pain levels 24 hours after surgery, time until first need for additional pain medication, and overall opioid use. Heart rate, blood pressure, patient satisfaction, recovery quality, and any adverse events will also be tracked during and after surgery. The total participation period includes intraoperative monitoring and 24 hours postoperatively.

Bilateral Erector Spinae Plane Block Versus Bilateral Oblique Subcostal Transversus Abdominis Plane Block for Postoperative Analgesia in Colorectal Surgery