endovascular.es

Título: Chimney stent grafts going the distance for complex aortic aneurysms
Fecha: 17-10-2013
Chimney stent grafts are proving safe and effective for patients with complex aortic aneurysms, a US and Swiss study suggests.
Close to 95% of patients who underwent the chimney or periscope graft showed a drop or stabilising in aneurysm size, found the study of 77 participants with a two-year midterm follow-up.
On average aneurysms shrank by 13% in diameter, reported the researchers led by Dr Mario Lachat at the Clinic for Cardiovascular Surgery, University Hospital in Zurich.
The alternative technique, along with its periscope variation, offers emergency treatment for patients who are not suitable for open surgery or branched stent grafts, the authors said.
Thirteen patients needed additional endovascular manoeuvres and 20 patients had endoleaks at discharge after surgery, but only three patients still had leaks at follow-up.
Renal function remained stable in all patients.
The results suggest chimney and periscope grafts are a “feasible, safe, and effective way to treat thoracoabdominal and pararenal aneurysms with maintenance of blood flow to the renovisceral arteries,” the authors wrote in the Journal of Endovascular Therapy.
The findings support the use of the grafts to effectively revascularise branch vessels with few endoleaks or branch occlusions, they concluded.
An accompanying editorial suggested the alternative technique was proving a success in the long run, allaying initial concerns over potential deterioration and leaks. But it cautioned that the length of the chimney grafts may present a challenge, and stressed the need for meticulous attention to detail when it came to performing the procedure and monitoring patients in the months and years to come.
Fuente: endovascular.es

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