Myotonic Dystrophy and Anesthetic Challenges: A Case Report and Review
Table 5
Summary of anesthesia management in patient with myotonic dystrophy.
Preoperative
Assess the type and duration of surgery. If it is emergent or upper abdominal surgery, expected duration longer than 1 hour, have posted bed available in ICU, patient may require post-op mechanical ventilation Assess patients muscle weakness by using MIRS score or Gilliam’s grading. If it is of higher grade, careful postoperative monitoring is required. Check patient’s glucose levels Twelve lead EKG and echocardiography because of higher risk of conduction defects. Consider pulmonary function testing if there are cardiorespiratory symptoms. Interrogation of cardiac rhythm management devices, if any. Avoid premedication with opioids. Consider antiaspiration prophylaxis with sodium citrate, H2 antagonist, metoclopramide.
Intraoperative
Choice of anesthesia local or regional if possible If general, avoid muscle relaxants if the surgery does not require them. If muscle relaxants are given, consider reversal. Maintain normothermia using thermal blankets, fluid warmers, and higher operating room temperature. Avoid shivering Invasive blood pressure monitoring, neuromuscular block monitoring, and temperature monitoring along with standard ASA monitors. Rapid sequence induction because of pharyngeal weakness and possibility of aspiration. Avoid drugs like Succinylcholine and anticholinesterases like Neostigmine. Have pacemaker/defibrillator in room if patient has conduction abnormalities. Consider Sugammadex for reversal Regional for postoperative pain control.
Postoperative
Continuous pulse oximetry and EKG monitoring for prolonged period. Consider postoperative ventilation in patient with high risk factors of developing pulmonary complications. Restrict use of opioids to minimal Consider multimodal pain management. Aggressive pulmonary toilet with incentive spirometry, chest physiotherapy, and cough assistant devices.