Kentarou Yagi

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A 7-year-old boy who presented with a painful left hemiscrotal mass was diagnosed with acquired lymphangioma of the scrotum. Chronic friction from a cast for Perthes' disease might have been the cause of sudden enlargement of a congenital lymphangioma of the scrotum. Magnetic resonance imaging (MRI) was useful for preoperative diagnosis and determining the(More)
Since February 2003, we have conducted surgical treatment on 8 patients complicated with chronic atrial fibrillation during cardiac surgery. A radial procedure was conducted on 7 patients, and pulmonary vein isolation was conducted on 1 patient. Underlying diseases included mitral regurgitation (MR) in 5 patients, mitral stenosis (MS) in 1 patient, aortic(More)
The durability of the aortic valve after aortic root reconstruction by an aortic valve-sparing procedure is of particular concern because of the absence of the sinuses of Valsalva in the David type-I reimplantation method. Various improvements have been made to the David-I method. In particular, a new aortic root conduit with the sinuses of Valsalva was(More)
The aim of this study is to assess the early outcome of the surgical treatment of acute type-A aortic dissection using recent improvements in antegrade selective cerebral perfusion. This study included 38 patients who had undergone surgery for acute type-A aortic dissection from October 2003 through March 2006. The surgery results were evaluated in 2(More)
We have conducted aortic valve replacement (AVR) using a stentless bioprosthesis (Medtronic Freestyle valve) on 10 patients with calcified aortic stenosis since March 2004. There were 64-84 years of age and 75 ± 5.5 years old on average, and included 4 males. Implantation was conducted by a modified subcoronary method in all the patients. The preoperative(More)
To reconstruct the aortic root for aneurysm of the ascending aorta accompanied by aortic regurgitation, annuloaortic ectasia (AAE) and acute type-A dissection with root destruction, the Bentall operation using a prosthetic valve still is the standard procedure today. Valve-sparing procedures have actively been used for aortic root lesions, and have also(More)