[Emergency Operation for Impending Rupture of Syphilitic Aortic Aneurysm with Left Coronary Ostial Stenosis:Report of a Case].

Syphilis is known as a cause of syphilitic aortitis. Chronic inflammation leads to formation of syphilitic aneurysm which often is found at the ascending aorta. If the inflammation spreads to the aortic root, stenosis of coronary ostium or aortic valve regurgitation are caused. We report a case that impending rupture of syphilitic aneurysm at ascending aorta with stenosis of left coronary ostium. The patient is a 49 years old male, and his chief complaint was chest pain which gradually became stronger. Computed tomography (CT) identified a large ascending aneurysm with a maximum diameter of 66 mm. The serum rapid plasma regain( RPR) test and the fixed Treponema pallidum latex agglutination( TPLA) test were positive. We diagnosed impending rupture of aneurysm, and performed emergency ascending aorta replacement. The aortic aneurysm was strongly adherent to the surrounding tissues. Pathological findings showed mesaortitis, which was consistent with syphilitic aneurysm. We started oral administration of amoxicillin hydrate from postoperative day 8. The patient did well, and was discharged on postoperative day 18. During his hospitalization, we performed enhanced coronary CT, and found stenosis of left coronary ostium. But he had no symptoms, so he got percutaneous coronary intervention after his discharge. Now the number of patients of syphilis is increasing in Japan. So it is important to know its characteristics and proper treatment.

[Multi-stage Operations to Thrombose a False Lumen for Chronic Aortic Dissection:Report of a Case].

A 72 years old man underwent hemiarch replacement for acute aortic dissection of Stanford type A at the age of 62 years. Entry remained at the aortic arch, and the false lumen was patent to the terminal aorta. After 10 years, his aortic aneurysm was enlarged to 55 mm. Redo total arch replacement and open stent graft was performed. False lumen of thoracic descending aorta was thrombosed, but thoracoabdominal segment was patent. Two years later, he developed distal stent graft induced neo entry (dSINE). To achieve aortic reconstruction, thoracic endovascular aortic repair (TEVAR) of combined covered stent graft and metal bare stent was performed to the terminal aorta. Three months later, covered stent graft to left renal artery and coil emboli to false lumen, and abdominal endovascular aortic repair( EVAR) was performed. After these procedures, the false lumen was almost thrombosed.

[Concomitant Tricuspid Annuloplasty with Resection of a Giant Right Atrial Myxoma:Report of a Case].

Myxomas account for the vast majority of heart tumors in adults. About 70% originate in the left atrium, while about 10% of these are reported to originate in the right atrium. A 70-year-old man with dyspnea, was found to have a giant right atrial mass by echocardiography, and tumor resection was performed under cardiopulmonary bypass( CPB) through a median sternotomy. At weaning from CPB the patient was hemodynamically unstable. Intraoperative echocardiography showed severe tricuspid regurgitation( TR), and tricuspid annuloplasty was performed. The postoperative course was uneventful and histopathological examination confirmed that the tumor was a myxoma. It is important to keep in mind that regurgitation of the atrio-ventricular valve might occur after resection of atrial myxoma.

[Valve Replacement for Isolated Pulmonary Valve Infective Endocarditis without Congenital Heart Defects:Report of a Case].

We report a rare case of isolated pulmonary valve endocarditis in a 60-year-old man without congenital heart defects. He had a persistent fever and back neck pain after pulling out his teeth. Echo cardiography revealed a mobile vegetation (measuring 53 mm in size) adhering to the pulmonary valve and blood cultures showed the presence of Staphylococcus aureus( S. aureus). Because of mobile vegetation, pulmonic embolism and presence of S. aureus, surgical treatment was selected. During surgical procedure, we found that the vegetation had destroyed markedly pulmonary valve leaflets. After excising pulmonary valve leaflets, we implanted a bioprosthetic valve and enlarged the pulmonary artery with autologous pericardium. A year after surgery, the patient is stable with no sign of infection.

[Gradual Enlargement of Saphenous Vein Graft Aneurysm Causing Chest Symptom after Coronary Artery Bypass Grafting;Report of a Case].

A 70-year-old man was admitted to our hospital because of shortness of breath. He had undergone coronary artery bypass grafting at another hospital 18 years before. We had detected his saphenous vein graft to the right coronary artery being aneurysmal 3 years before. The aneurysm had grown from 23 mm to 42 mm during the follow-up. Because of an angina-like symptom and the possibility of rupture, we performed resection of the aneurysm and redo coronary artery bypass grafting to the right coronary artery using another saphenous vein. His symptom has disappeared since then. Saphenous vein graft aneurysm needs close follow-up even when conservative therapy is selected.

[Surgical Treatment of Abdominal Aortic Aneurysm with Ectopic Kidney with Stanford Type A Acute Aortic Dissection;Report of a Case].

We experienced a surgical case of Stanford type A acute aortic dissection with abdominal aortic aneurysm (AAA) associated with ectopic kidney. Computerized tomography did not detect any ulcer-like projections, but 3 days later, it appeared, and emergency surgery was performed. Second-stage surgery was selected and done later to repair AAA. The right kidney was an ectopic pelvic kidney. The renal arteries had branched off from the left common iliac artery, and the renal artery lumen narrowed. With a 4 Fr catheter, cold Ringer's solution was given to protect the kidneys during surgery. The patient showed no deterioration of kidney function and made good progress. After rehabilitation, the patient had no complications and was discharged from the hospital.

[Treatment Strategy for Stanford Type A Acute Aortic Dissection].

The fundamental treatment of Stanford type A acute aortic dissection is a lifesaving emergency surgery in our hospital. We perform hemiarch replacement with a focus on entry tear, but an extended surgery is also performed only when resection of the entry tear is difficult. The outcomes of current therapeutic policy, along with the short-term and the long-term outcomes of different sites of entry tear, were examined retrospectively. Three hundred and twenty surgery of Stanford type A acute aortic dissection were performed between 1991 and 2015 at our hospital. Their short-term and long-term outcomes were examined after dividing them into 7 groups according to their entry sites. We also investigated surgical methods and effects of presence/absence of residual entry tear. As a result, overall hospital mortality was 13.1%. There was no significant difference in either shortterm or long-term outcome among the groups. Likewise, no significant difference was observed in the surgical methods or the presence/absence of residual entry tear. Recently, minimally invasive procedures, such as stent-grafting, have been applied to manage the residual entry tear. Therefore, an aggressive extended surgery is no longer inevitable and our current therapeutic policy is considered reasonable.