经食道超声心动图对肺移植术后肺静脉血栓的诊断价值  

Transesophageal echocardiography for detection of pulmonary vein thrombosis in patients after lung transplantation

作　　者：刘欢[1] 钱大钧[1] 

机构地区：[1]南京医科大学附属无锡市人民医院心功能科,214023

出　　处：《内蒙古中医药》2011年第18期3-4,共2页Inner Mongolia Journal of Traditional Chinese Medicine

摘　　要：目的:评价经食管超声心动图对肺移植患者肺静脉血栓的诊断价值。方法:80例肺移植患者术后2天内接受经食管超声心动图检查。重点观察左、右肺静脉,对发现血栓的患者测量血栓的大小以及狭窄部位的血流速度。结果:80例患者中有12例(15%)发现肺静脉血栓,血栓平均宽0.9cm,阻塞部位平均峰值流速为124cm/s。5例肺静脉血栓形成的患者在围术期死亡,90天的死亡率为33%。预后差的患者血栓较大且通过狭窄的肺静脉血流速度较快。结论:经食管超声心动图是诊断肺静脉血栓的一种有用的工具,可以发现肺静脉血栓并测量血栓的大小和阻塞部位的血流速度,进而指导临床治疗等。Objective To observe the diagnostic value of transesophogeous echocardiography for detection of pulmonary vein thrombosis in patients after lung transplantation.Methods Eighty lung transplant recipients underwent transesophageal echocardiography within tow days after surgery.Left and right pulmonary veins were key to observed.When we found thrombosis,we measured the thrombus width and the peak flow velocity at the site of obstruction.Results Thrombosis of a pulmonary vein was diagnosed in 12（15%） of 80 patients.Mean thrombus width was 0.9 cm,with an average peak flow velocity at the site of obstruction of 127 cm/s.Five patients with pulmonary vein thrombosis died in the perioperative period,yielding a 90-day mortality rate of 33%.Larger thrombus size and greater acceleration of flow through a narrowed pulmonary vein correlated with poor clinical outcome.Conclusions Transesophageal echocardiography is a valuable tool for detecting pulmonary vein thrombosis,it can measured the dimension of thrombus and the average peak flow velocity at the site of obstruction.Additionally,thrombus size and flow velocity at the site of obstruction may guide clinical management.

关 键 词：超声心动描记术 经食管 肺移植 血栓形成 

分 类 号：R445.1[医药卫生—影像医学与核医学]