Shariat A, Ghia S, Gui JL, et al. - Researchers conducted this single-center, prospective, randomized study to determine if regional anesthetic techniques, particularly truncal blocks, can offer adjunct anesthesia without the additional risk of general anesthesia and neuraxial techniques for S-ICD implantation. This study involved 22 ASA 3 or 4 patients with severe cardiac disease receiving SICD implantation. Patients were administered either a combination of serratus anterior plane block (SAP) and transversis thoracis plane (TTP) block or surgical infiltration of local anesthetics. The truncal block group was found to have significantly lower total intraoperative fentanyl requirements (mcg) compared with the surgical infiltration group and no participants experienced any adverse sequelae associated with the study. Overall, SAP and TTP blocks were not only found appropriate for S-ICD implantation but also may confer the advantage of reducing intraoperative opioid needs.