上颌骨高位骨折常伴有() ["A.颅面分离","B.耳鼻出血","C.复视","D.张口受限","E.局部水肿"]
人工心脏瓣膜置换术术后并发症包括哪些?
下列关于瓣膜病的描述哪些是正确的() ["心室舒张功能可以描述为心室的顺应性","某些瓣膜疾病对左室产生容量负荷,引起离心性肥厚","某些瓣膜疾病对左室产生压力负荷,引起向心性肥厚","收缩功能可以描述为舒张末压与容量的关系","某些瓣膜病可以造成冠状动脉的供血不足"]
Z成形术又称为() ["A.岛状皮瓣","B.移位皮瓣","C.滑行皮瓣","D.旋转皮瓣","E.推进皮瓣"]
根性感觉障碍表现:() ["受损范围呈带状","出现感觉分离","投射性疼痛","症状在病变对侧","受损范围呈节段性"]
简述心脏外科病人的术前准备。