CPT® Code 64487

Transversus abdominis plane (TAP) block (abdominal plane block, rectus sheath block) unilateral; by continuous infusion(s) (includes imaging guidance, when performed)

The transversus abdominis plane (TAP) block is a regional anesthesia technique that targets the nerves supplying the anterior abdominal wall, specifically at the spinal levels of T6 to L1. This procedure is primarily utilized to manage postoperative pain in patients undergoing abdominal surgeries. By delivering anesthesia to the relevant nerve pathways, the TAP block serves as an adjunct therapy, enhancing pain control and potentially reducing the need for systemic opioids. The TAP block can be performed at various stages of the surgical process, including preoperatively, intraoperatively, or postoperatively, depending on the clinical scenario and the surgeon's preference. A unilateral TAP block is particularly effective for surgical incisions located to either the right or left of the midline, while a bilateral block is indicated for midline incisions. The administration of a long-acting local anesthetic, such as bupivacaine, can provide significant pain relief lasting up to 36 hours with a single injection. In contrast, a continuous infusion technique can extend pain relief for a duration of 36 to 72 hours, offering a more sustained approach to postoperative analgesia. Various ultrasound-guided techniques can be employed to enhance the accuracy and effectiveness of the block, including subcostal, oblique subcostal, lateral, and posterior approaches. This method not only improves the precision of the anesthetic delivery but also allows for real-time visualization of the anatomical structures involved, ensuring optimal placement of the anesthetic agent.