Anesthetic Management of Simultaneous Coronary Artery bypass Grafting with Cardiopulmonary bypass and Extended Thymectomy in a Patient with Myasthenia Gravis

Islam M. Massad, Elias A. Dumour, Mahmoud Abu Abeeleh, Moaath Al-Smady

Abstract


A 61-yr-old male having myasthenia gravis MG (Osserman IIB), Hypertension HTN, hyperlipidemia, type II diabetes mellitus DM II, a single pelvic kidney, chronic obstructive pulmonary disease COPD with a positive history of smoking and coronary artery disease, was admitted for uncontrolled myasthenic symptoms, cardiology team was consulted, cardiac catheterization was performed and revealed a three vessel coronary artery disease. All the findings dictated the management, a combined coronary artery bypass graft CABG and an extended thymectomy was performed. Optimization of the patient was achieved preoperatively. Total intravenous anesthesia using propofol and remifentanyl was applied to this patient. Continuous monitoring of the neuromuscular transmission NMT was maintained throughout the perioperative period. Although neither muscle relaxants nor inhalational agents were used in the anesthetic management of this patient; the patient developed postoperative atelectasis and lung collapse; which was managed successfully, and extubation of the trachea was done after ensuring adequate recovery of the NMT and respiratory function. Myasthenic therapy was continued throughout the perioperative period.

Keywords


Myasthenia gravis; Coronary artery bypass grafting; Cardiopulmonary bypass; Perioperative management.

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