Comparative analysis of general anesthesia and ultrasound-guided intercostal nerve block in subcutaneous implantable cardioverter-defibrillator perioperative care

Both anesthetic methods were safe in the short term. However, US-ICNB was superior in reducing operation and hospital stay times and alleviating peri-operative pain. It has high safety in S-ICD implantation and deserves further clinical promotion, though large-scale, multi-center, randomized controlled trials are needed to confirm these findings.