Ascending-Descending Aortic Bypass for the Treatment of Concomitant Severe Co-arctation,Aortic Valve Disease and Hypoplastic Aortic Arch

This report describes a one-stage treatment of a 30-year-old patient suffering from severe aortic valve insufficiency, aortic co-arctation, dilatation of the ascending aorta and arcus hypoplasia. The patient underwent aortic valve, ascending aorta and arch replacement through median sternotomy. The aorta was ligated at the level of the co-arctation, which was located in the proximal part of the descending aorta, and an ascending-descending bypass was created using a transhiatic approach. The postoperative course was complicated by a cerebrovascular accident.     

小主动脉瓣环患者机械瓣置换术后中期疗效分析

目的观察小主动脉瓣环患者行心瓣膜置换术后中期疗效和心功能恢复情况，探讨小口径瓣膜的使用范围。方法1990年7月至2003年6月共对62例患者施行19号主动脉机械瓣膜置换术（19mm瓣膜组），同时选择62例同期置换21号以上机械瓣膜患者做对照（21mm瓣膜组）；术后随访两组患者的临床症状、体征，心电图、超声心动图等指标，采用Kaplan—Meier分析生存曲线计算两组患者的生存率，并进行比较分析。结果19mm瓣膜组中有38例主动脉瓣区仍存在Ⅱ级以上杂音，心电图检查18例有ST段改变，术后11例仍存在胸闷、胸痛症状，术后心功能Ⅱ级33例，Ⅲ级29例；21mm瓣膜组术后心电图检查6例有ST段改变，术后3例有胸闷症状，偶尔有胸痛不适6例，术后心功能Ⅱ级48例，Ⅲ级14例，两组间比较差异有统计学意义（P=0．020）。两组患者术后左心室舒张期末内径、左心室后壁厚度、左心室重量指数、主动脉跨瓣压差等均较术前明显改善（P〈0．05），左心室射血分数（LVEF）术后5年与术前比较明显提高（P〈0．05），但两组间比较差异无统计学意义（P〉0．05）。19mm瓣膜组术后1年、5年生存率分别为93．5％、74．2％；21mm瓣膜组术后1年、5年生存率分别为95．2％、79．0％，两组间比较差异无统计学意义（P=0．231，0．110）。结论小口径主动脉瓣置换术能取得良好的效果和中期生存率。     

Endoconduit for Transcatheter Aortic Valve Implantation

Access challenges are sometimes encountered in patients who require transcatheter aortic valve implantation (TAVI). Transapical (TA) access is a well-established alternative, but it is more invasive than the standard transfemoral (TF) access techniques. We adopted the iliac endoconduit technique to perform TF TAVI in a patient with small-caliber, heavily calcified iliac arteries. This technique could provide an adequate access route for TAVI that is minimally invasive, even for patients with prohibitory iliac anatomy.     

Aortic Root Reconstruction with TachoSil Fibrin Sealant Patch in Acute Type A Aortic Dissection

Purpose: We propose a novel technique for reconstruction of the dissected aortic root with the use of TachoSil fibrin sealant patch.Methods: Patients with acute type A aortic dissection involving the aortic root were included. Appropriately prepared TachoSil fibrin sealant patch was placed between the dissected layers of the aortic root to achieve their durable fusion. Thus, the false lumen was eliminated, and the anatomical and functional structure of the aortic wall was restored.Results: In all, 13 patients mean aged 57 ± 10.3 years underwent surgery for acute type A aortic dissection with the use of TachoSil fibrin sealant patch. All patients survived the surgery. The mean follow-up time was 30.8 ± 16.4 months. Follow-up computed tomography angiography (CTA) scans confirmed no aortic root dissection in all patients.Conclusions: This technique ensures durable restoration of the aortic wall structure, eliminates the secondary aortic valve regurgitation, and allows for the preservation of patients’ native aortic valve.