Hybrid repair of complex thoracoabdominal aortic aneurysms using applied endovascular strategies combined with visceral and renal revascularization
Received 13 May 2008; received in revised form 3 December 2008; accepted 21 March 2009. published online 28 May 2009.
Objective
We sought to report our experience with combined retrograde visceral revascularization and endovascular exclusion (hybrid procedure) of thoracoabdominal aortic aneurysms.
Methods
From February 2005 to October 2007, the prospectively collected data of 18 consecutive patients undergoing hybrid repair were analyzed. Median age was 73 years; Crawford–Safi extent included 2 type I, 8 type II, 7 type III, and 1 type V thoracoabdominal aortic aneurysms; 13 were atherosclerotic and 5 were postdissecting aneurysms. Previous open or endovascular aortic surgery had been performed in 11 (61.1%) patients. Society for Vascular Surgery/North American Chapter of the International Society for Cardiovascular Surgery preoperative risk stratification identified mild-to-severe hypertension and pulmonary and cardiac status in 88.9%, 67.7%, and 88.9% of the patients, respectively.
Results
Fifty-four visceral vessels were bypassed in 18 patients. As an adequate inflow site, the common iliac artery was identified in 15 (83.3%) patients, the infrarenal native aorta was identified in 1 (5.6%) patient, and a previous tube graft was identified in 2 (11.1%) patients. Median operating time was 360 minutes (range, 210–600 minutes), and median blood loss was 3200 mL (range, 1000–18,000 mL). Aneurysm exclusion was achieved in 17 patients. Thirty-day mortality was 16.7% (n = 3/18). Complications included paraplegia (n = 1) and acute myocardial infarction (n = 2). Median follow-up was 23 months (range, 8–42 months), with visceral graft patency at follow-up or death of 98.1% (n = 53/54). One early and 1 late type Ia endoleak (11.8%, n = 2/17), no type III endoleaks, and 5 type II endoleaks were detected, none necessitating adjuvant procedures.
Conclusion
The visceral hybrid repair is a feasible and relatively safe procedure for extensive thoracoabdominal aortic aneurysms. Even considering the significantly high mortality and morbidity rates, it might represent a viable alternative in a cohort of patients historically deemed at high risk for traditional surgical intervention.
St George's Regional Vascular Institute, St Georges Hospital NHS Trust, London, United Kingdom
Address for reprints: Matt Thompson, MA, MBBS, FRCS, MD, St George's Regional Vascular Institute, 4th Floor, St James Wing, St Georges Hospital NHS Trust, Blackshaw Rd, London SW17 0QT, United Kingdom.
Disclosures: Matt Thompson reports consulting fees from medtronic and Cook; Ian Loftus reports consulting fees from Medtronic.
ABSTRACT