Endovascular repair with contralateral external-to-internal iliac artery bypass grafting: a case series.
BACKGROUND
To report a technique of keeping unilateral blood flow in the internal iliac artery in cases of an abdominal aortic aneurysm in achieving successful Endovascular abdominal aortic aneurysm repair using an external-to-internal artery bypass.


METHODS
6 japanese patients with infra-renal abdominal aortic aneurysms were treated using the retroperitoneal approach via a left (right) paramedian incision followed by an external-to-internal artery bypass. Endovascular abdominal aortic aneurysm repair was conducted on mean postoperative day 29 ± 18 and was performed because the contralateral internal iliac artery, which was not involved in the external-to-internal artery bypass, was treated with a coil embolization. No complications developed during the postoperative follow-up period (17 ± 1.5 months). In all 6 patients, patent grafts were evident on computed tomography angiography scans even after 1-3 months.


CONCLUSIONS
Endovascular abdominal aortic aneurysm repair with unilateral internal iliac artery embolization and contralateral external-to-internal artery bypass is feasible with a relatively low risk. It is a safe procedure and reduces the incidence of postoperative complications.
Department of Cardiovascular Surgery, Kansai Rosai Hospital, 3-1-69 Inabaso, Amagasaki, Hyogo, 660-8511, Japan. bw100kg@hotmail.co.jp.
Yasuhiko
Y
Kobayashi
Department of Cardiovascular Surgery, Kansai Rosai Hospital, 3-1-69 Inabaso, Amagasaki, Hyogo, 660-8511, Japan. bw50kg@outlook.jp.
Masayuki
M
Sakaki
Department of Cardiovascular Surgery, Kansai Rosai Hospital, 3-1-69 Inabaso, Amagasaki, Hyogo, 660-8511, Japan. ibarakiis@osaka.email.ne.jp.
Takashi
T
Yasuoka
Departments of Cardiology, Kansai Rosai Hospital, 3-1-69 Inabaso, Amagasaki, Hyogo, 660-8511, Japan. puremelon0610@yahoo.co.jp.
Osamu
O
Iida
Departments of Cardiology, Kansai Rosai Hospital, 3-1-69 Inabaso, Amagasaki, Hyogo, 660-8511, Japan. jinji@kobe-asahi-hp.com.
Tomoharu
T
Dohi
Departments of Cardiology, Kansai Rosai Hospital, 3-1-69 Inabaso, Amagasaki, Hyogo, 660-8511, Japan. bw75kg@gmail.com.
Masaaki
M
Uematsu
D000368:Aged; D000369:Aged, 80 and over; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D001026:Coronary Artery Bypass / Q000379:methods*; D057510:Endovascular Procedures / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007083:Iliac Artery / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome