Реферат
A 70-year-old woman diagnosed with angina pectoris was scheduled to undergo off-pump coronary artery bypass grafting (OPCAB) using the left internal thoracic artery and the saphenous vein (SVG). We performed a proximal anastomosis of the SVG to the ascending aorta using a clampless proximal anastomotic device. When this device was removed from the ascending aorta after completion of the SVG proximal anastomosis, we noticed the extensive appearance of an ascending aortic adventitial hematoma. Transesophageal echocardiography revealed a flap in the ascending aorta, which was diagnosed as an iatrogenic aortic dissection. The decision was made to immediately perform an additional aortic replacement. There was an intimal tear consistent with the device insertion site, which was identified as the site for the development of aortic dissection. After performing an ascending aortic replacement, coronary artery bypass grafting was performed. Her postoperative course was uneventful, and enhanced CT on postoperative day 12 showed aortic dissection up to the level of the abdominal aorta, but the false lumen was completely thrombosed. Iatrogenic aortic dissection caused by proximal anastomotic device during OPCAB is a very rare but serious complication, and early intraoperative diagnosis and prompt additional surgical treatment were considered necessary to save the patient's life.
Реферат
Concomitant occurrence of coronary arterial disease (CAD) with abdominal aortic aneurysm (AAA) is not rare. Combined performance of open surgery (OS) of AAA repair and coronary arterial bypass grafting (CABG) has been reported to be effective as the way to avoid the risk of rupture of the aneurysm and acute coronary syndrome (ACS), while it's highly invasive. We successfully performed a combination performance of endovascular aneurysm repair (EVAR) and off-pump CABG (OPCAB) with the support of an intra-aortic balloon pump (IABP) in 2 cases with AAA and unstable angina pectoris (UAP). It was suggested that this strategy is a reasonable clinical option for the patient with UAP complicated with large AAA.
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A 66-year-old woman attended our hospital for ascending aortic aneurysm. She was admitted with sudden back pain and acute aortic dissection of Stanford type B was revealed by computed tomography. We performed replacement of the ascending aorta and aortic arch with the frozen elephant trunk technique. The left pleural drainage fluid turned cloudy white after diet initiation on postoperative day 2. We diagnosed chylothorax with biochemical analysis and stopped oral intake completely, but the drainage increased to 3,700 ml/day. On postoperative day 8, completely thoracoscopic ligation of thoracic duct was performed. The drainage decreased immediately after the procedure. She could start meals on postoperative day 12 and was discharged on postoperative day 22. We conclude that a completely thoracoscopic ligation of thoracic duct for persistent chylothorax after aortic surgery can lead to early resolution.
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<p>A 74-year-old male who had a medical history of thoracic endovascular aortic repair (TEVAR) was referred to us for endoleakage. A total of 21 years ago, he underwent emergent descending aortic grafting for aortic aneurysm rupture at his age of 53. After that, 19 years ago, he underwent TEVAR with Matsui-Kitamura stent graft (MKSG) due to pseudoaneurysm formation at the proximal anastomotic site at the age of 55. CT revealed type III endoleakage due to fracture of MKSG and graft. We proceeded to perform TEVAR with Relay Plus successfully, and his endoleakage disappeared. His postoperative course was uneventful. He was discharged from our hospital on the 9th day after the operation, and is now doing well.</p>
Реферат
<b>Background</b> : Several studies have shown that Fontan circulation may lead to liver congestion and possible structural liver alteration. The aim of this study is to analyze the relationships between biochemical fibrosis markers and hemodynamic parameters in the long term after the Fontan operation.<br><b>Methods</b> : The study enrolled 51 patients who underwent total cavopulmonary connection between March 1994 and July 2010. We analyzed the relationships between the 5 liver fibrosis markers (hyaluronic acid, retinol-binding protein, procollagen type III peptide, type IV collagen 7S, type IV collagen) and the 6 hemodynamic parameters (pulmonary artery pressure, pulmonary artery index, pulmonary vascular resistance, ejection fraction, atrioventricular valve regurgitation, cardiac index).<br><b>Results</b> : Hyaluronic acid and type IV collagen 7S positively correlated with pulmonary artery pressure. Hyaluronic acid negatively correlated with ejection fraction, and type IV collagen 7S positively correlated with atrioventricular valve regurgitation in patients followed up for more than 8 years after Fontan completion. Pulmonary artery pressure was significantly higher in patients in whom type IV collagen 7S was elevated. Hyaluronic acid correlated with pulmonary vascular resistance (<i>p</i>=0.0035) and ejection fraction (<i>p</i>=0.014), as well as type IV collagen 7S with pulmonary artery pressure (<i>p</i>=0.0001) by multiple regression analysis.<br><b>Conclusion</b> : Hyaluronic acid and type IV collagen 7S reflected the degree of hepatic congestion, and cardiac function, in the long term after the Fontan operation.