Yuko Tosaka | PubMed Health

PubMed2006

A reduced priming system.

Cardiopulmonary bypass (CPB), an integral part of valve surgery, is known to cause hemodilution, which can lead to a need for blood transfusion as well as a systemic inflammatory reaction. Our aim was to evaluate a reduced priming (RP) system for CPB with regard to clinical outcomes in patients undergoing valve surgery. Eleven patients were assigned to the new system with an RP volume. The RP system allowed for reduced hemodilution and a possible reduction in the necessity for blood transfusions.

Adult↗

PubMed2004

Inverted L-shape sternotomy as a minimally invasive approach: re-do cardiac surgery for papillary muscle rupture.

We report a successful treatment of the complete papillary muscle rupture occurring 16 months after coronary artery bypass grafting (CABG). A 57-year-old man was admitted for the sudden onset of chest pain and cardiogenic shock. Emergency cardiac catheterization revealed severe mitral regurgitation and total occlusion in the right coronary artery, which was successfully revascularized by percutaneous coronary intervention under intra-aortic balloon pumping. The right internal thoracic artery grafted to the left anterior descending artery in the previous CABG was functioning well. An echocardiogram distinctly indicated the ruptured head of the papillary muscle. Since an emergency operation revealed complete rupture of the posterior papillary muscle, mitral valve replacement was carried out through an inverted L-shape sternotomy with T-shape left atriotomy. Our case indicates that the inverted L-shape sternotomy was a useful approach to preserve the function of grafts, and that T-shape left atriotomy offered a good exposure of the mitral valve in the limited surgical field.

Coronary Artery Bypass↗

PubMedDate not supplied

Aortic root endoscopy in pediatric cardiac operations for aortic valvuloplasty.

We use aortic root endoscopy for assessment of the aortic valve in pediatric patients. A flexible fiberscope inserted through the ascending aorta provides clear and precise visualization of the aortic valve. This technique of endoscopic assessment will help to judge the cusp prolapse and malcoaptation of the aortic valve in pediatric aortic surgery.

Angioscopy↗