Impending rupture of abdominal aortic aneurysm due to spontaneous obstruction of aortocaval fistula after endovascular abdominal aortic aneurysm repair oleh Tsuyoshi Fujimiya, MD, PhD, Yuki Seto, MD, PhD, Keiichi Ishida, MD, Shinya Takase, MD, PhD, Hirono Satokawa, MD, PhD, Hitoshi Yokoyama, MD, PhD