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find Author "丁杭" 4 results
  • 肺动脉及分支量化分析在法洛四联症根治术中的意义

    摘要 目的 对法洛四联症患者的肺动脉(PA)、左肺动脉(LPA)和右肺动脉(RPA)分支进行量化分析,探讨其临床意义。方法 术前测量236例法洛四联症患者PA及其分支直径,计算PA与主动脉(AO)直径比值(PA/AO),PA与体表面积(BSA)比值(PA/BSA),PA与正常肺动脉截面积(NPA)比值(PA/NPA),(LPA+RPA)/AO,(LPA+RPA)/PA,(LPA+RPA)/BSA等;测量术后右心室与左心室收缩压比值(PRV/LV),分析存活者与死亡者这些指标差别的意义。结果 (LPA+RPA)/AO<0.5时,手术危险性显著增加;PA/BSA≥2.0时,(LPA+RPA)/BSA≥2.4及PA/NPA≥0.6时,其手术安全性显著增加;是否需跨肺动脉瓣环补片主要与PA/BSA,PVA/BSA,PA/NPA有关;术后PRV/LV比值与PA及其分支发育情况无关,而主要受术中右心室流出道和PA疏通情况的影响。结论 PA及其分支发育情况虽然对手术结果有影响,但更重要的是手术过程对右心室流出道及肺动脉狭窄的纠正情况。

    Release date:2016-08-30 06:33 Export PDF Favorites Scan
  • Early to Mid-term Results of Modified Aortoplasty with External Wrap for Aneurysmal Dilatation of the Ascending Aorta

    ObjectiveTo summarize clinical experience and early to mid-term results of modified aortoplasty with external wrap for aneurysmal dilatation of the ascending aorta with or without heart valve disease. MethodsClinical data of 27 patients with aneurysmal dilatation of the ascending aorta who underwent modified aortoplasty with external wrap in Department of Cardiovascular Surgery, Fujian Provincial Hospital from January to October 2003 were retrospectively analyzed. There were 19 male and 8 female patients with their age of 35-71 (57±9)years and body weight of 42-90 (59±11)kg.There were 23 patients with aortic valve disease including 3 patients with bicuspid aortic valve. There were 4 patients in New York Heart Association function class Ⅰ, 9 patients in class Ⅱ, 12 patients in class Ⅲ, and 2 patients in class Ⅳ. Preoperative ascending aortic diameter (AAOD)was 40.0-59.1 (46.4±4.8)mm, left ventricular end-diastolic diameter was 42.5-70.7 (56.9±8.3)mm, and left ventricular ejection fraction (LVEF)was 57.7%±8.0%. Patients were followed up with echocardiography to examine changes of AAOD and left ventricle. ResultsCardiopulmonary bypass (CPB)time was 121.2±52.6 minutes, and aortic cross-clamping time was 70.6±29.7 minutes. Two patients received modified aortoplasty without CPB. There was no in-hospital death.Among the 25 patients who received modified aortoplasty under CPB, 1 patient had cerebral infarction and another patient had hypotension and arrhythmia postoperatively.Postoperative AAOD (36.3±3.4 mm)was significantly smaller than preoperative AAOD (46.4±4.8 mm, t=1.675, P < 0.05). Twenty-four patients were followed up from 1.0 to 120.5 months (average, 35.5 months). During follow-up, no cardiac-related death or reoperation was found. Two patients died of pneumonia, and another 2 patients died of cerebral hemorrhage. One patient had upper gastrointestinal bleeding. Aneurysmal dilatation of the ascending aorta recurred in 1 patient 3 years after discharge with AAOD of 49.9 mm. AAOD at 1 year (40.3±4.3 mm)and 3 years (40.3±5.6 mm)after discharge were significantly smaller than preoperative and postoperative AAOD (P < 0.05). ConclusionModified aortoplasty with external wrap is a good surgical procedure for aneurysmal dilatation of the ascending aorta with or without valve disease, and early to mid-term results are satisfactory.

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  • Application of vascular repair and reconstruction in surgical treatment of superior vena cava syndrome caused by thoracic tumor

    Objective To summarize the clinical experience of vascular repair and reconstruction for treating superior vena cava syndrome (SVCS) caused by thoracic tumor. Methods Between October 2008 and June 2016, 26 patients with thoracic tumor and SVCS were admitted. There were 18 males and 8 females, aged from 27 to 70 years (mean, 45.9 years). Tumor was typed as B1-B3 thymoma in 13 cases, thymic carcinoma in 6 cases, large B-cell lymphoma in 3 cases, T lymphocytic lymphoma in 1 case, malignant teratoma in 1 case, right lung squamous cell carcinoma in 1 case, and carcinoid in 1 case. The tumor diameter ranged from 8 to 15 cm with an average of 10 cm. The patients had different degrees of neck, face, and upper extremity edema, jugular vein distention, and chest wall collateral venous filling. The superior vena cava pressure was 2.45-5.39 kPa. After excision of tumor and invading superior vena cava, 7 patients underwent superior vena cava reconstruction and 19 patients underwent artificial vascular replacement. Results There was no perioperative death, and the symptoms of superior vena cava obstruction were eliminated. Postoperative pulmonary infection, respiratory muscle weakness, and right chylothorax occurred in 4 cases, 1 case, and 1 case respectively. Twenty-four patients were followed up 2-92 months (mean, 37 months), and 2 patients failed to be followed up. At 1, 3, and 5 years, the survival rate was 83.3% (20/24), 41.7% (10/24), and 25% (6/24), respectively. In 6 patients with 5-year survival, there were 1 case of type B1 thymoma, 3 cases of type B3 thymoma, and 2 cases of large B-cell lymphoma. Conclusion For preoperative evaluation of SVCS caused by resectable thoracic tumors, vascular repair and recons-truction technique can be used to quickly and effectively relieve the clinical symptoms and improve the quality of life.

    Release date:2017-03-13 01:37 Export PDF Favorites Scan
  • Vein valve function following pharmacomechanical thrombectomy versus simple catheter-directed thrombolysis for lower extremity deep vein thrombosis: A case control study

    ObjectiveTo compare vein valve function following pharmacomechanical thrombolysis (PMT) with simple catheter-directed thrombolysis (CDT) for deep vein thrombosis.MethodsWe retrospectively analyzed the clinical data of sixty patients who suffered acute lower extremity deep vein thrombsis in our hospital between October 2016 and March 2017. All patients underwent contralateral preprocedural duplex and bilateral postprocedure duplex to access patency and valve function. The patients were divided into three groups including a group A with catheter-directed thrombolysis (CDT) alone (36 patients with 20 males and 16 females at average age of 56 years), a group B with PMT alone (15 patients with 8 males and 7 females at average age of 55 years), and a group C with PMT combined CDT (9 patients with 4 males and 5 females at average age of 56 years). The valve function was compared among the Group A, Group B and Group C.ResultsThere were 40.0% (24/60) patients with bilateral femoral vein valve reflux, 40.0% (24/60) patients with unilateral femoral vein valve reflux (all in the treated limbs), 20% (12/60) patients had no reflux in both limbs. Of the limbs treated with CDT alone, PMT alone and PMT combined CDT, the rate of valve reflux was 38.9% (14/36), 33.3% (5/15), and 55.6% (5/9) respectively (P=0.077).ConclusionIn the patients suffering acute DVT, PMT or PMT combined CDT does not hamper valve function compared with CDT alone.

    Release date:2019-01-23 02:58 Export PDF Favorites Scan
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