Serratus Anterior Plane Block as a Regional Analgesia Technique for Post Thoracotomy and Thoracoscopy Pain: Review Article

Abstract

Background: Chest wall surgeries are accompanied by severe postoperative pain. Inadequate relief of this pain may lead to both pulmonary complications as lung atelectasis and infection and chronic post thoracotomy pain syndrome. Regional analgesic modalities are important portion of the multimodal therapeutic approach suggested for the management of post thoracotomy pain. Objective: To evaluate serratus anterior plane block as a regional analgesia technique for post thoracotomy and thoracoscopy pain. Recent Findings: Serratus anterior plane block (SAPB), a regional analgesic modality developed by Blanco et al. in 2013, has shown good analgesic effect after thoracotomy and thoracoscopy in many case reports and clinical trials. In such block, a local anesthetic is injected in the fascial plane deep or superficial to the serratus anterior muscle leading to block of lateral cutaneous branches of the intercostal nerves. This provides a sensory block of T2-T9 dermatomes. Conclusion: Serratus anterior plane block as a fascial plane block can be a preferred regional analgesia technique for both post-operative pain management with procedures involving anterolateral chest wall as thoracotomy, thoracoscopy and breast surgery and in cases of multiple rib fractures. This is owing to its easy technique, effective pain relief and potentially better side effects profile compared to other regional modalities and systemic opioids.