Table 2. Summary of techniques for regional anesthesia.

Tabla data are adapted from reference [81].

TAP: Transversus abdominis plane

Block Type	Indication	Patient Position	Technique of Application
Intercostal	It is used in postoperative pain management for upper abdominal and chest procedures.	Prone with a pillow under the abdomen and a hanging arm on the side of the block.	Catheter placement may be more challenging in obese patients due to extra adipose tissue.
Transversus abdominis	It is used to relieve abdominal pain from cesarean delivery, hysterectomy, or other lower abdominal procedures.	Ideally in the supine position for ultrasound identification of anatomical markers	It can be performed unilaterally or bilaterally at the end of the abdominal surgery, providing coverage from T7 to L1.
Quadratus lumborum	It is used for postoperative pain relief after midline abdominal surgeries.	Ideally, it is administered with the patient in the lateral position.	It provides a larger area of coverage than the TAP block, numbing the area from T4 to L2.
Ilioinguinal	It is often used for the repair of inguinal hernias, and it offers intraoperative pain relief.	The patient lying supine.	Frequently used intraoperatively in conjunction with sedation and supplemental local anesthetic injection at the site