A 40-year-old man was admitted because of coronary heart disease with a totally calcified ascending aorta and Leriche's syndrome. Establishing a cardiopulmonary bypass seemed to be difficult because neither the ascending aorta nor femoral artery was suitable as a cannulation site. It was not until a prosthetic conduit for revascularization of the lower extremities was anastomosed to the right axillary artery in preparation for the conversion from off-pump to on-pump that off-pump CABG was performed. Subsequently revascularization of the lower extremities was completed. The patient had a satisfactory postoperative course. Off-pump CABG is useful for patients with a severely calcified ascending aorta and occlusive lesions below the descending aorta.

In post-genome era, the greatest challenge of post-genome research is how we can apply genomic outcome to practical field like clinical medicine through discovering effective findings from its complex and meta-molecular network. From the viewpoint of reducing health care cost, preventive medicine that can avoid diseases should be essential target. Balneology that contains preventive medicine in part through unspecified bio-modulation effect should be a principal field of genome science based application. Balneology has expectations to be applied to practical clinical field or health promotion through translational research to modern medicine or health science. This translational research needs establishment of bridging knowledge and its bi-directional migration as the essence of translation. Integration of in silico knowledge among balneology, modern medicine, and genomic science is the fundamental basis of this translation. Single knowledge architecture that has anatomically hierarchical structure, logical conceptual unit and its supportive evidences makes integration logically seamless and establishes smooth translation. This paper reports knowledge architecture in balneologic translational research and its prototype.

A 66-year-old man with an abdominal aortic aneurysm and coexisting horseshoe kidney is reported. The aneurysm was successfully replaced by a prosthetic graft without resection of the renal isthmus. Because of renal blood supply and location of renal isthmus, aortic reconstruction presents a significant technical problem. Preservation of multiple renal arteries may be facilitated by preoperative aortography, and retraction of the renal isthmus offers good operative exposure.

A 61-year-old man, who had previously undergone quadruple coronary artery bypass graft surgery, was successfully treated for proximal descending aortic aneurysm using hypothermic circulatory arrest via a left thoracotomy. Preoperative angiograms revealed that the left internal thoracic artery bypass graft to the LAD was patent, and that the aneurysm was located at the descending aorta just distal to the left subclavian artery. Operative procedures were as follows. A left thoracotomy incision was made through the 4th intercostal space. The common femoral artery and vein were cannulated, and the venous cannula was positioned in the right atrium. The patient was cooled by partial cardiopulmonary bypass until the EEG was isoelectric (24°C rectal temperature), and then circulation was arrested. Left ventricular decompression was not performed. After opening of the aneurysm, proximal anastomosis was performed first at the aorta just distal to the left subclavian artery. Another arterial cannula, connected to the Y-shaped arterial line, was inserted into the graft, and perfusion to the brain was restored through this cannula. Distal anastomosis was then completed, and routine cardiopulmonary bypass was reestablished. After the heart was defibrillated, the patient was rewarmed to 34°C before discontinuing the bypass. Circulatory arrest time and total cardiopulmonary bypass time were 17 minutes and 139 minutes, respectively. Postoperative recovery was uneventful.

We reviewed 223 cases of surgical treatment for abdominal aortic aneurysm in octogenarians in this hospital between 1981 and 2000, and investigated the characteristic features, complications, and indications of the operation. The cases were divided into two age groups. Group O included 23 cases of octogenarians, and Group Y included 200 cases of patients under 80 years old. The average age was 68.6 years old in group Y (33-79 years old), and 83 years old in group O (80-93 years old). The hospital mortality rate was 0% in elective operation cases. In emergency operation case, Group O had a hospital mortality rate of 57.1%, significantly higher than the 6.1% for group Y. The hospital mortality rate was 17% in group O and 0.5% in group Y. The rate of emergency operation case was significantly higher in group O (30.4%) compared to group Y (16.5%). As for the preoperative complications, group O had more cases of renal dysfunction, COPD and gastrointestinal complication. As for the coronary artery disease and other cardiovascular complications, there were no significant differences between the groups. In the postoperative complication, group O had more cases of ileus, pneumonia, and cardiovascular disease. These complications were fatal in group O. These results suggest that surgical treatment for abdominal aortic aneurysm was performed safely in both groups for elective operations. Because the results of emergency operations are poor, early diagnosis and treatment seem to be important for the improvement of operative results.

The approach for the heart and proximal aorta in a patient with a tracheostomy poses difficult problems such as mediastinitis and inadequate operative exposure. We report a case of successful surgical treatment for type A aortic dissection in a patient with tracheostomy using a Y shaped skin incision and median full-sternotomy. A 63-year-old woman with a tracheostomy was referred to our hospital because of type A thrombosed aortic dissection and cardiac tamponade. At first we treated the patient conseservatively, but follow-up CT taken on the 20th day after onset revealed that false lumen of the ascending aorta was patent and the size of ascending aorta had increased to 6cm in diameter. We therefore performed hemiarch replacement (24mm Hemashield gold graft) through a Y shaped skin incision and median full-sternotomy. The postoperative course was uneventful and she was discharged on the 19th postoperative day.