CASE PRESENTATION
We report the case of a 75-years-old frail patient underwent awake mediastinal revision with subxiphoid access due to deep sternal wound infection using a Pectoralis-Intercostal Rectus Sheath (PIRS) plane block. During the procedure the patient never reported pain receiving acetaminophen 1 g every 8 hours for postoperative pain management without others pain relievers.