Clinical Effect Of Endovascular Repair Of Complex Aortic Lesions Using Octopus Surgery

Objective:To evaluate the safety and short-term effect of endovascular repair of complex aortic lesions with the Octopus technique.Methods:The data of six cases who underwent Octopus surgery in our centre from August 2020 to February 2022 were analysed retrospectively.Among them,the choice of operation scheme,operation time,operation complications,and the follow-up data were analysed.Results:The average age of the six patients undergoing Octopus surgery was55.1 ± 17.2 years.Two cases were diagnosed as pararenal aortic aneurysms,four cases were aortic dissection involving the visceral artery.All cases achieved technical success,that is,all visceral arteries were reconstructed as planned.A total of 17 visceral arteries were planned to be reconstructed,five celiac arteries were embolized.Three cases of gutter endoleak were found during operation without embolization but with follow-up observation.There were two cases of slight damage to renal function and two cases of perioperative death.Other complications,such as intestinal ischaemia and spinal cord ischaemia,did not occur.Follow-up ranged from 6 months to 27 months.One patient died of gastrointestinal bleeding 6 months after the operation.At the 6 months follow-up,computed tomographic angiography showed that all internal leaks had disappeared.The patency rate of the visceral artery was 100%,and no complications such as stent displacement and occlusion occurred during the follow-up period.Conclusion:The Octopus technique is a very promising surgical method,and the current Octopus method is an effective and relatively minimally invasive treatment for aortic dilatation disease involving important branch arteries in the visceral artery region.However,we should not ignore its operation difficulty,operation-related complications,and long-term prognosis.We should pay attention to and continue to optimize Octopus technology.