Effect of Erector Spinae Plane Block and Transversus Abdominis Plane Block on Quality of Recovery and Postoperative Pain After Laparoscopic Hysterectomy; Randomized, Double-blinded Clinical Trial

Standard management of acute pain after surgery consists mainly of systemic opioid narcotics and nonsteroidal anti-inflammatory drugs (NSAIDs). Generally, opiates and NSAIDs are not completely effective at managing pain, and they carry significant risk of addiction and overdose, particularly with prolonged or increased dosing. The concept of multimodal or ''balanced'' analgesia is rapidly becoming the 'standard of care' for preventing post-operative pain. It consists of the use of combinations of analgesics of different classes with different sites of action in an attempt to provide superior pain relief with reduced analgesic related side effects. Local anesthetic injection to block specific nerves has been widely recognized as a useful adjunct in a multimodal approach to postoperative pain management.

Erector Spinae Plane (ESP) block is a recently described plane block designed to block the dorsal and ventral rami of the spinal nerves. And this block provides visceral and somatic pain block.

Transversus Abdominis plane (TAP) block involves the injection of LA between the transversus abdominis (TA) and internal oblique (IO) muscles.This interfascial plane contains the intercostal, subcostal, iliohypogastric, and ilioinguinal nerves. These nerves give sensation to the anterior and lateral abdominal wall as well as the parietal peritoneum, providing only somatic and not visceral analgesia.