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The mental strain of a cardiac surgeon may differ when he performs coronary surgery from and when he only assists in performing coronary surgery. In 50 selected cases of on-pump heart arrested coronary artery bypass grafting (CABG), an attending-consultant surgeon performed 30 procedures of CABG (Group A) and an attending-consultant surgeon supervised the… (More)
To provide supplementary training for trainee cardiac surgeons, a simple method is required to simulate coronary anastomoses. By stretching 2 gloves over a towel, a model can be made that can be used to simulate a small coronary arteriotomy (including anterior and posterior walls). The graft can also be simulated using the fingers of the gloves.
BACKGROUND Transit time flow measurement has been accepted as a valuable tool to predict early coronary artery bypass graft failure immediately after surgery. However, if the graft is patent in the early postoperative period, the ability of transit time flow measurement to predict midterm graft failure is unknown. METHODS Midterm postoperative angiography… (More)
Side-to-side anastomosis was employed by just ten proportional stitches while performing distal anastomosis during coronary artery surgery. This technique is simple and quick. Here this simple technique is described in detail and the postoperative status of grafted conduits is reported.
We sought to investigate the effects of the left internal mammary artery anastomosed to the left anterior descending artery for improving mid-term outcome in patients with severe left ventricular dysfunction. Twenty consecutive coronary artery bypass grafts performed by a single surgeon for less than 35% ejection fraction patients were reviewed… (More)
OBJECTIVE It is widely accepted that both valve and cardiac functions are closely correlated. In order to investigate the relationship between the valve and cardiac functions, we developed a model of an isolated working heart with crystalloid perfusate in swine. We investigated the feasibility of this model to evaluate the precise left ventricular function… (More)
BACKGROUND The new evolving multidetector computed tomography (MDCT) is thought to be promising in imaging of coronary disease. We compared the evaluating power of MDCT to that of conventional coronary artery angiogram in patients with coronary artery bypass grafting surgery. METHODS From April 2002 to December 2003, 50 patients underwent both MDCT and… (More)
OBJECTIVE To better understand the mechanism of stroke during cardiopulmonary bypass, it is necessary to obtain information on the location of turbulence, wall pressure, and flow distribution within the aortic arch. METHODS Blood flow was numerically simulated using the finite element method in the following representative case: a curved arterial cannula… (More)
BACKGROUND A primary limitation of using transit time flow measurement to predict early graft failure in coronary artery bypass grafting has been the lack of cutoff values for objective criteria. METHODS We analyzed a total of 261 grafts that were evaluated by intraoperative transit time flow measurement and underwent early postoperative coronary… (More)