Serratus Anterior or Erector Spinae Block for Hybrid Arrhythmia Ablation Surgery

The purpose of this study is to evaluate differences between single-shot EQUAL ropivacaine doses of the serratus anterior plane block (SAPB) or erector spinae plane block (ESPB) injection, when used as adjuvant to treat postoperative pain, after one-stage unilateral hybrid arrhythmia (atrial fibrillation, ventricular tachycardia, inappropriate sinus node tachycardia) ablation surgery. The primary outcomes are to evaluate block placement efficacy in the hybrid surgery setting (total time to block placement in seconds, time to visualization of location of injection in seconds, adequacy of ropivacaine spread) by picturing and worst numerical scale pain at rest or moving, using a visual analog pain scale from 0= no pain to 10= maximal pain, in the first 12 hours after admission to the post-anaesthesia care unit. Secondary outcomes aim to evaluate to investigate pain location, additional analgesic consumption and requests, ease of breathing, breathing quality, sleeping quality and quantity, duration of hospitalisation, and general level of satisfaction.