Objective: To examine the efficacy and experience of staged and segmented two hybrid surgeries for total repair of Debakey type Ⅰ aortic dissection (TIAD). Methods: This study was a retrospective case series. The clinic data of 10 patients with acute TIAD who were admitted to the Department of Cardiac Surgery, Second Hospital of Lanzhou University or the First People's Hospital of Lanzhou, between January 2016 and August 2022, were retrospectively studied. Ten patients underwent hybrid surgeries in two hospitalizations (stages), including 7 males and 3 females with an age of (60±7) years (range: 49 to 71 years). In stage 1, the first type Ⅱ hybrid arch repair was performed to treat the ascending, total arch, and descending thoracic aorta for acute TIAD without circulatory arrest. In stage 2, the second hybrid surgery including infrarenal abdominal aorta replacement, visceral arteries bypass and endovascular thoracoabdominal aortic repair was performed to treat residual thoracoabdominal aortic dissection after the first hybrid operation (segmented). Basic data, preoperative concomitant diseases, high-risk factors, surgical approaches and postoperative complications of all important organs, as well as CT imaging were analyzed. Results: There was no death in the 20 hybrid surgical procedures. In stage 1 type Ⅱ hybrid surgery, 4 cases underwent reconstruction of the aortic sinutubular junction, while Bentall and David surgery was performed for 3 cases, respectively. A patient received coronary artery bypass grafting. Then all patients were sequentially treated with arch debranching and thoracic aortic endovascular repair. Postoperative complications included renal insufficiency (4/10), hemofiltration (1/10), hypoxemia (4/10), neurologic event (1/10) and type Ⅱ endoleak (1/10). Complete false lumen thrombosis occurred in 9/10 of the patients. All complications recovered successfully at discharge and the average hospital stay was (21±4) days (range: 16 to 28 days) in the first hospitalization. At stage 2, the second hybrid surgery was successfully performed in all patients. No paraplegia, hepatic or renal insufficiency, or endoleak occurred. However, branch graft embolism of the left renal artery was found in one patient 3 days after laparotomy, as well as of superior mesenteric artery in another. Superior mesenteric artery occlusion was successfully treated by endovascular recanalization. Complete false lumen thrombosis occurred in all patients. Although all patients had different degrees of intestinal dysfunction, they were gradually relieved at discharge, and the average hospital stay was (19±2)days (range:16 to 21 days) in the second hospitalization. During follow-up, CT angiography showed aortic remodeling in all patients. Conclusion: Staged and segmented two hybrid surgeries are safe and feasible for total repair of Debakey type Ⅰ aortic dissection and are associated with acceptable early and midterm outcomes.
目的： 探讨分期分段二次复合手术全程修复DeBakey Ⅰ型主动脉夹层（Ⅰ型夹层）的疗效和经验。 方法： 本研究为回顾性病例系列研究。回顾性分析2016年1月至2022年8月在兰州大学第二医院或兰州市第一人民医院接受二次复合手术的10例急性Ⅰ型夹层患者资料，男性7例，女性3例，年龄（60±7）岁（范围：49~71岁）。第一次采用弓部Ⅱ型复合手术，在非深低温停循环下，修复升主动脉、主动脉弓、降主动脉近段夹层；第二次复合手术采用肾下腹主动脉替换、内脏动脉旁路联合胸腹主动脉支架植入，修复残余远段胸腹主动脉夹层（分段）。记录患者基本资料、CT造影图像、手术结果。 结果： 10例患者分期手术顺利完成，无死亡。第一次弓部Ⅱ型复合手术中，有主动脉窦成形4例，Bentall和David手术各3例，冠状动脉旁路移植术1例，均顺序完成弓部去分支和胸主动脉腔内修复手术。第一次复合手术后发生肾功能不全4例、低氧血症4例、神经系统并发症1例、Ⅱ型内漏1例，近端假腔血栓化率9/10；住院时间（21±4）d（范围：16~28 d）。第二次复合手术后无截瘫，无肝、肾功能不全和内漏，术后3 d发生左肾动脉分支和肠系膜上动脉分支闭塞各1例，经介入治疗再通，假腔血栓化率10/10；住院时间（19±2）d（范围：16~21 d）。随访期CT造影显示主动脉形态逐渐重塑。 结论： 分期分段二次复合手术全程修复Ⅰ型夹层可行，近中期效果达到预期。.