Initial Results of Open Stent-Grafting Applied with a Matsui-Kitamura Stent in the Treatment of Thoracic Aortic Aneurysm

(Department of Cardiovascular Surgery, and Department of Pediatric Cardiovascular Surgery*, Southern Tohoku General Hospital, Koriyama, Japan)

Hirofumi Midorikawa Megumu Kanno Takashi Takano
Kouyu Watanabe Kyohei Ueno Shigehiro Morishima*
Takashi Ono
We reporte the initial results of open stent-grafting(OSG)applied with a Matsui-Kitamura(MK)stent in the treatment of thoracic aortic aneurysm(TAA). From August 2005 to March 2011, OSG for TAA was applied in 35 cases(male/female, 29/6, 58〜86 years old, mean age 71). During deep hypothermic circulatory arrest with antegrade selective cerebral perfusion, the stent graft was delivered through the transected proximal aortic arch, followed by arch replacement with a 4-branched prosthesis. Concomitant procedures included 1 coronary artery bypass graft, 1 mitral valve replacement and 2 pacemaker implantations. Operative mortality within 30days was 5.7%(respiratory failure in 1 and ischemic enteritis in 1). There was 1 in-hospital death due to brain stem infarction. Perioperative morbidity included 2(5.7%)stroke, 5(14.3%)spinal cord injuries(paraplegia in 1, paraparesis in 1 and transient paraparesis in 3), and 1(2.9%)temporary hemodialysis. Ten patients(28.6%)were intubated for more than 72 h. There was no complication with the graft-related incident. These initial results suggested the OSG method applied with a MK stent is a useful surgical procedure for the treatment of TAA.
  Jpn. J. Cardiovasc. Surg. 40:272-278(2011)

Keywords:open stent-graft, MK stent, thoracic aortic aneurysm(TAA), initial results