Mobitz type II second-degree atrioventricular block after intravenous infusion of dexmedetomidine in an elderly patient undergoing radical prostatectomy: a case report
Fabricio Tavares Mendonça, Sumaia de Fátima da Silva Barreto da Mota, Matheus Beserra Braga, Lorenzo Leite Dino, Igor Louza Pereira
Abstract
Dexmedetomidine is an α2-adrenoceptor agonist widely used in anesthesiology. However, its indiscriminate use may result in significant adverse effects. We report a case of dexmedetomidine-induced Mobitz type-II second-degree atrioventricular block in an elderly hypertensive patient undergoing radical prostatectomy. After receiving dexmedetomidine at a dose of 1mcg/kg, the patient exhibited a pronounced bradycardia (heart rate 30-40 bpm) with unsatisfactory response to anticholinergics. Urgent cardiology evaluations confirmed the Mobitz type-II second-degree block diagnosis, and the surgical procedure was postponed for further assessment. The patient remained stable without the need for the implantation of a temporary pacemaker. This case highlights the potential complications associated with the use of dexmedetomidine in elderly patients with pre-existing cardiac conditions.
Keywords
References
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Submitted date:
08/23/2024
Accepted date:
09/05/2024
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