試題詳解

55. 有關Interscalene Block (ISB) 下列何者為非？
(A) The major acute complications associated with ISB are respiratory depression, seizures and cardiac arrest, pneumothorax, epidural and spinal anesthesia.
(B) The ipsilateral phrenic nerve is blocked in some patients undergoing ISB, resulting in hemidiaphragmatic paresis.
(C) Because hemidiaphragmatic paresis may result in a 25% reduction in pulmonary function, patients with severe respiratory disease may not tolerate an ISB without the addition of mechanical ventilation.
(D) An ISB would be contraindicated in patients after pneumonectomy on the contralateral side and for bilateral operative procedures.
(E) The supraclavicular approach to the brachial plexus with ultrasound guidance may pro- vide effective shoulder anesthesia without complete ipsilateral paresis of the phrenic nerve.