Continuous Erector Spinea Block Versus Intravenous Analgesia in Coronary Bypass Surgery

Adequate postoperative pain relief in patients in cardiac surgery is very essential. multimodal techniques for perioperative pain management post cardiac surgery include intravenous patient controlled analgesia, thoracic epidural and paravertebral blockade. Analgesia through thoracic epidural is the gold standard technique for post-sternotomy pain control but it has serious complications. ESP block is an easy technique compared to paravertebral block and less hazardous than thoracic epidural. Hence, this study will compare continuous bilateral erector spinae block guided by ultrasound with intravenous analgesia which is the standard method for pain management in cardiac surgery.