Comparison Of Modified Thoracoabdominal Nerve Block Through Perichondrial Approach and Transversus Abdominal Plane Block in Analgesia Efficacy And Recovery Quality Following Laparoscopic Cholecystectomy

Cholecystectomy is the most common abdominal surgical procedure in developed countries Laparoscopic cholecystectomy is considered the gold standard surgical technique for gallstones.

Several factors play a role in pain after laparoscopic cholecystectomy. This pain is complex and generally considered to be visceral. These factors are include phrenic nerve irritation caused by CO2 insufflation, abdominal distension, port incisions, the effect of gallbladder removal and individual factors.

Regional analgesia has been widely accepted by both patients and treating physicians and has become an important part of multimodal analgesia techniques. Transversus abdominis plane (TAP) block has been shown to reduce postoperative pain like hysterectomy, cholecystectomy, cesarean section and colorectal surgery.

Ultrasound (US)-guided Modified Thoracoabdominal Nerve Block Through Perichondrial Approach (M-TAPA) is performed by applying local anesthetic only to the underside of the perichondral surface. It provides effective analgesia in the anterior and lateral thoracoabdominal area.

M-TAPA is a good alternative for analgesia of the upper dermatome levels and lateral abdominal region and may be an opioid-sparing strategy that provides better quality recovery in patients undergoing laporoscopic surgery. M-TAPA provides analgesia at the T5-T11 level in the abdomen. Sonoanatomy is easy to visualize and the spread of local anesthetic can be easily seen with US guidance. Cephalo caudal spread of local anesthetic solution produces analgesia in several dermatomes. There are studies investigating the efficacy of M-TAPA for postoperative pain management in bariatric surgery in the literature.