| 2. | Although less likely , other causes of bronchoconstriction should also be considered and include right mainstem obstruction , inadequate anesthesia , pneumothorax , mechanical obstruction , endobronchial intubation , pulmonary aspiration , pulmonary edema and pulmonary embolism ( 4 ) 虽然其他可能导致支气管收缩的可能性较小,但也应考虑,包括右主支气管阻塞、麻醉深度不足、气胸、肺水肿和肺栓塞[ 4 ] 。 |