Results Two patients died postop days 10,and 14.All discharged patients were followed up for up to one year.One patient was still alive at 11 months postop and 8 survived for 3 to 10 months.

• 结果手术死亡2例，术后随访1年，除1例至今仍存活11个月外，余8例生存期分别为11、10、9、8、5、4.；5、3、3个月。