Case Presentation: We present the case of a 70-year-old male with a medical history of atrial fibrillation, hypertension, hyperlipidemia, and chronic obstructive pulmonary disease (COPD), admitted for elective radiofrequency ablation for atrial fibrillation. In the immediate postoperative period, the patient became hypotensive, with a blood pressure of 60/40 mmHg, and developed tachycardia, with a heart [...]