A 61 year-old man was admitted with fever and chest discomfort. He had undergone aortic root replacement for annuloaortic ectasia at age 57. Computed tomography showed a pseudoaneurysm and an abscess formation around the aortic root. Prosthetic valve endocarditis was diagnosed and the underwent repeat aortic root replacement. After debridement and irrigation of the abscess cavity, the left ventricular outflow tract was reconstructed with an equine pericardium, which was rolled to form a conduit. The pericardial conduit was securely sutured to the healthy left ventricular wall and the mitral annulus. A 25 mm-Freestyle valve was then sutured to the distal end of the conduit. The previous prosthetic vascular graft was removed and Completely replaced with a new prosthesis. This method provided secure fixation of a new prosthetic valved conduit to the normal left ventricular tissue with an excellent operative visual field.

Subclavian artery aneurysm (SCAA), a peripheral arterial aneurysm, is a rare entity. The surgical procedure and approach depend on the location of the aneurysm. We present a case of the endovascular therapy combined with cross axillary bypass. The patient was a 75-year-old man with a small abdominal aortic aneurysm. Multi-detector computed tomography (MDCT) revealed an intrathoracic right SCAA 38 mm in diameter. The operation was performed successfully under general anesthesia. After cross bypass of bilateral axillary artery, the orifice of the right subclavian artery was covered with a stent-graft inserted into the right common carotid artery-brachiocephalic artery and the right subclavian artery was occluded with coils distal to the aneurysm. Post operation angiogram showed complete exclusion of the SCAA and patency of the right common carotid and right vertebral artery. We thought this hybrid treatment for the intrathoracic SCAA could be a useful surgical strategy.

Aortic dissection with rupture into the right atrium is an extremely rare and rapidly fatal condition. We report the case of a 59-year-old man with a history of double valve replacement 2 years earlier at another hospital. Although the previous postoperative course had been uneventful, the patient had experienced facial edema and general fatigue for 10 days before admission to our hospital because of heart failure. The diagnosis of chronic aortic dissection with rupture into the right atrium was confirmed by intraoperative transesophageal echocardiography. At operation, we observed an aortic dissection that originated from a tear in the original aortic incision line. The fistula extended from the false lumen to the right atrium. The aortic adventitia were partially defective. The aortic dissection had ruptured and a pseudo-aneurysm had formed. We performed ascending aortic replacement and closure of the aorta-right atrium fistula under hypothermic arrest on cardiopulmonary bypass. The postoperative course was uneventful and the patient was discharged on the 17th postoperative day.

The patient was a 74-year-old woman who had undergone mitral valve replacement with a mechanical valve for rheumatic mitral valve stenosis at age 60. She was scheduled for aortic valve replacement for severe aortic stenosis. However, she had significantly worsening anemia before the operation. Capsule endoscopy showed angiodysplasia with bleeding in her small intestine, which was considered the cause of the anemia. Because of progressive anemia, we tried embolization under angiography. However, there was no evidence of extravasation. Neither melena nor exacerbation of anemia was observed, and she underwent aortic valve replacement. She was discharged on postoperative day 22 without gastrointestinal bleeding. Heyde syndrome is aortic valve stenosis associated with gastrointestinal bleeding induced by von Willebrand disease and angiodysplasia in small intestine. Molecular multimeric analysis of von Willebrand factor and the existence of angiodysplasia with hemorrhage of the digestive tract are important for definitive diagnosis. Capsule endoscopy, which is a general examination, is more useful for diagnosis than molecular multimeric analysis of von Willebrand factor. Aortic valve replacement is the only therapeutic option for Heyde syndrome. It is important to decide the appropriate timing of AVR with cardiopulmonary bypass.

We report a case of type A acute aortic dissection in an elderly woman with immune thrombocytopenia (ITP) who underwent replacement of the ascending aorta and aortic arch and later required aortic root replacement for redissection of the aortic root one month after her initial surgery. She was an 86-year-old woman with severe mitral regurgitation, and surgery was contraindicated because of her age and ITP. In October 2014, the patient presented with back pain. Computed tomography confirmed the diagnosis of her condition as type A acute aortic dissection, and she was immediately transferred to our hospital. Because echocardiography showed severe aortic regurgitation, severe mitral regurgitation, and moderate tricuspid regurgitation, we performed replacement of the ascending aorta and aortic arch, mitral valve repair, and tricuspid annuloplasty. We used Bioglue to fuse the false lumen of the type A acute aortic dissection and used a Teflon felt sandwich for the proximal anastomosis technique. Respiratory support was discontinued 91 h after her first operation ; however, 30 days after surgery, she developed a to-and-fro murmur-a sign of the progression of heart failure. Echocardiography showed aggravation of aortic regurgitation, and computed tomography showed aortic root redissection ; therefore, 39 days after the initial surgery, we performed aortic root replacement. During the operation, we found the entry under the proximal anastomosis with an almost semicircle form at the right coronary cusp to the noncoronary cusp, and the dissection extended close to the right coronary artery ; thus, we performed bypass to the right coronary artery. Pathologic findings did not establish a causal association between the redissection and Bioglue, and we believed the fragility of the tissue and the selection of the surgical procedure to be the cause of redissection. The patient was transferred to another hospital when she was able to walk and eat, which was 121 days after her first operation. The patient required 50 units of platelet transfusion during her first and second operations, but her bleeding was easily controlled during surgery. She needed two procedures of pericardium drainage for pericardiac effusion and cardiac tamponade, which may relate to ITP. The diagnosis of redissection of the aortic root was made 30 days after the patient's first operation, on the basis of exacerbation of the to-and-fro murmur. Here, we emphasize the clinical importance of basic observations over time, such as auscultation, that are liable to be overlooked in the intensive care unit.

We report a case of successful anatomical reconstruction with omentopexy of an infected abdominal aortic aneurysm (AAA) in a patient with a previous history of coronary artery bypass grafting with the right gastroepiploic artery. A 60-year-old man was referred to our institute because of fever and abdominal pain during hemodialysis for chronic renal failure. Antibiotic therapy was started after computed tomography revealed an infected abdominal aortic aneurysm. After infection control, surgical treatment was scheduled. At surgery, left axillo-bifemoral bypass was performed first, because it was unclear whether the omentum was large enough for omentopexy. At laparotomy, adequate omentum and infective AAA were confirmed. AAA repair using a rifampicin-soaked graft, and omentopexy were performed. Enterobacter aerogenes was detected from the resected aortic wall. After the operation, intravenous antibiotic was used for 25 days until CRP was normalized. One year follow-up showed no sign of re-infection.

We report a case of chronic mesenteric ischemia associated with severe aortic valve regurgitation and stenosis (ASR). The patient was a 76-year-old man who had been given a diagnosis of ASR in his 40s. He gradually developed heart failure and chronic kidney disorder due to deterioration of ASR. He had started hemodialysis 1 year before admission and had complained of abdominal pain after meals and weight loss during that period. He was admitted to the Department of Cardiology in our hospital for evaluation of ASR. Severe ASR with low output syndrome (C. I. 2.00 L/min/m²) were confirmed by cardiac catheter examination. In addition, abdominal angiography revealed total occlusion of the superior mesenteric artery (SMA) and severe stenosis of the celiac artery (CA). We considered that low cardiac output due to severe ASR had exacerbated the mesenteric ischemia. We performed AVR and abdominal aorta-SMA bypass at the same time to prevent acute mesenteric ischemia in the perioperative period. The combination of valvular disease and CMI is very rare. This is the first report in Japan of simultaneous valve replacement and mesenteric artery revascularization.

We herein report on a case in which we conducted bypass surgery for occlusion of a left axillary artery aneurysm with ischemic symptoms 21 years after the contraction of Kawasaki disease and achieved symptomatic improvement. The case involved a 22-year-old man who had been suffering from Kawasaki disease since the age of one. He had been undergoing antiplatelet therapy for bilateral axillary artery aneurysms by orally taking aspirin for 20 years. He suffered from symptoms of upper limb ischemia 21 years after receiving a diagnosis of peripheral aneurysms and occlusion of a left axillary artery aneurysm upon 3DCTA. We conducted aneurysmotomy, plication, and bypass surgery between the axillary and brachial arteries via the autologous vein. Pathological examination revealed due to the formation of atheroma in the tunica intima and disarrangement of the layer structure in the tunica media : thickening of the tunica media was partially observed. His fatigue upon exertion of his left upper extremity remarkably improved following surgery. Although peripheral aneurysms associated with Kawasaki disease are rare, as seen in this case, peripheral arterial disease remains and progresses even after long periods of time. It is believed necessary to carry out long term follow-up and examine the approaches to therapy including surgery in accordance with the site and degree of the disease.

A 31-year-old man fell into syncope caused by compression by a machine in his factory. He was taken to the nearest hospital at once for treatment. His chest X-ray seemed normal and his general condition improved. He received no medical treatment and was allowed to return home. Two days later, he went to the hospital for further investigation, and contrast-enhanced chest computed tomography (CT) was performed. Chest CT showed aortic dissection from the ascending aorta to the aortic arch. Therefore, he was admitted for bed rest with antihypertensive therapy. He was discharged on the 35th day after the accident. However, the diameter of the ascending aorta was found to have become dilated, and so he underwent ascending aorta and hemiarch replacement at our hospital. His postoperative course was uneventful, and he was discharged on the 16th postoperative day. We report a rare case of an acute aortic dissection caused by blunt chest trauma.

An 8 year-old boy had a cardiac murmur pointed out on day three after birth and was given a diagnosis of ventricular septal defect (VSD). He underwent VSD patch closure at two months after birth. He was also found the having Loeys-Dietz syndrome on the basis of mutation of TGFBR2 and physical examination at the age of 2 years. He had been followed up at pediatrics clinic of our hospital since then, and was hospitalized for a 46.5-mm extension of valsalva sinus diameter and moderate aortic insufficiency. The aortic valve was three-cusped and had no abnormality. We performed valve-sparing aortic root replacement. He was discharged on day 18 after the operation without any problems in the postoperative course. Use of an artificial heart valve for the surgery of the aortic root lesion in childhood will probably cause reoperation in the future and difficulty in Warfarin anticoagulation control. A careful decision is needed in the choice of an operation method. Valve-sparing aortic root replacement is a useful operation for patients without aortic valve abnormality.