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首页> 外文期刊>Vascular and endovascular surgery >Type A acute aortic dissection: Why does the false channel remain patent after surgery?
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Type A acute aortic dissection: Why does the false channel remain patent after surgery?

机译：A型急性主动脉夹层：为什么假通道在手术后仍然保持专利？

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Purpose: To understand why the false channel (FC) remains patent after surgery of type A acute aortic dissection (TAAAD). Materials and Methods: Postoperative contrast-enhanced computed tomography scans of 129 patients operated for TAAAD were analyzed, and a color-Doppler ultrasound examination (CDUS) of the supra-aortic vessels (SAVs) was performed in 12 patients. Results: The FC remained patent in 107 (82.9%) patients. The entry site was situated near the distal anastomosis in 43 (40.2%) patients and far from it in 44 (41.1%) patients. In 10 (9.35%) patients, an entry site was observed only in the SAVs. In 10 (9.35%) patients, no entry site was seen. Of the 12 patients explored with CDUS, a retrograde filling of the FC was observed in 11 patients. Conclusion: The frequent postoperative circulating aortic FC can be explained by the persistence of the primary entry tear, the presence of iatrogenic tears, and/or a retrograde filling in the SAVs.
机译：目的：了解为什么在A型急性主动脉夹层（TAAAD）手术后假通道（FC）仍为专利。材料与方法：分析了129例接受TAAAD手术的患者的对比增强计算机断层扫描，并对12例患者进行了主动脉上血管（SAVs）的彩色多普勒超声检查（CDUS）。结果：FC仍在107例患者中占专利（82.9％）。进入部位位于43例（40.2％）的远端吻合附近，而远离44例（41.1％）的远端吻合。在10名（9.35％）患者中，仅在SAV中观察到进入部位。在10名（9.35％）患者中，未发现进入部位。在CDUS探查的12例患者中，有11例观察到FC的逆行充盈。结论：术后主动脉循环频繁的原因可以由原发性泪液的持续存在，医源性泪液的存在和/或SAV的逆行充盈来解释。

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