Cases reported "Aortic Rupture"

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11/725. Periprosthetic leak and rupture after endovascular repair of abdominal aortic aneurysm: the significance of device design for long-term results.

    We present a case of abdominal aortic aneurysm treated with an endovascular bifurcated aortic graft in which a periprosthetic leak caused by a tear in the polyester prosthesis appeared between 9 and 12 months after surgery. The tear appeared adjacent to a suture breakage that caused separation of two struts of the nitinol wire framework in the body of the stent graft. The leak was sealed with insertion of a new endovascular tube graft into the body of the bifurcation. Eight months later, the patient had a nonfatal rupture of the abdominal aortic aneurysm because detachment of the second limb from the bifurcation caused a new major periprosthetic leak. According to the manufacturer of this device, suture breakage with separation of metal components is commonly seen, but perforation of the polyester prosthesis caused by movement of the metal stent against the fabric has not been reported. It is likely that this occurred in our patient. Detachment of the second limb from the bifurcated stent, causing a rupture, has been described before. Increasing angulation and tortuosity of the stent graft, as a result of either remodeling of the sac or elongation of the stent, and reduced compliance to angulation after the stent-in-stent procedure might have contributed to the detachment in this case.
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12/725. Acute traumatic dissection and blunt rupture of the thoracic descending aorta: A case report.

    Rupture of the thoracic aorta following blunt trauma is increasing in incidence and remains a highly lethal injury. Blunt traumatic rupture and acute dissection of the thoracic aorta is very rare. A 50-year-old man involved in a motor vehicle accident on March 3, 1998 was admitted to our hospital one and a half hours following the accident. On admission, he was alert and his hemodynamics were stable. Chest roentgenogram demonstrated a widened mediastinum and multiple left-sided rib fractures. Enhanced chest CT revealed a periaortic hematoma just distal to the isthmus, dissection of the descending thoracic aorta and mediastinal hematoma. With the diagnosis of thoracic aortic rupture and acute DeBakey type IIIB dissection, an emergency operation was performed. Intraoperative transesophageal echocardiogram showed a mobile intimal flap and diminished caliber of the proximal descending aorta. Disruption and dissection of the descending thoracic aorta were found. Prosthetic graft interposition was accomplished with the aid of left atrium-left femoral artery bypass using a centrifugal pump and heparin-coated circuits and a blood collection device for blood conservation. The weak dissected aortic wall was glued and reapproximated with Gelatine-Resorcine-Formol glue. The postoperative course was uneventful.
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13/725. Endovascular stent-grafting via the aortic arch for distal arch aneurysm: An alternative of endovascular stent-grafting in a complicated case.

    A 67-year-old man with severe discomfort was diagnosed with a rupture of the thoraco-abdominal aneurysm, a distal arch aneurysm and triple coronary artery disease. After emergency surgery for a thoracoabdominal aneurysm, a scheduled surgery for coronary artery bypass grafting and endoluminal stent-grafting for the distal arch aneurysm was performed simultaneously. A stent-graft was introduced into the descending aorta via a small incision on the arch aorta. Open endovascular stent-grafting via the arch aorta is an alternative for repairing a distal arch aneurysm with coronary artery bypass grafting.
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14/725. aortic rupture as a result of low velocity crush.

    A case of aortic disruption in a 35 year old lorry driver is described. This occurred as a result of a low velocity crushing force. Clinicians should be aware that this mechanism of injury may result in aortic disruption as well as the more commonly mentioned severe deceleration force.
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15/725. The spectrum of aortic complications after heart transplantation.

    BACKGROUND: The connection between the donor and the recipient aorta is a potential source of early and late complications as a result of infection, compliance mismatch, and technical and hemodynamic factors. Moreover, the abrupt change in systolic pressure after heart transplantation involves the entire thoracic aorta in the risk of aneurysm formation. The aim of this study was to analyze the types of aortic complications encountered in our heart transplantation series and to discuss etiology, diagnostic approach, and modes of treatment. methods: Of the 442 patients having orthotopic heart transplantation and the 11 patients having heterotopic heart transplantation at our center, 9 (2%) sustained complications involving the thoracic aorta. These 9 patients were divided into four groups according to the aortic disease: acute aortic rupture (2 patients); infective pseudoaneurysm (3 patients); true aneurysm and dissection of native aorta (2 patients); and aortic dissection after heterotopic heart transplantation (2 patients). Surgical intervention was undertaken in 8. RESULTS: Five (83%) of 6 patients who underwent surgical treatment for noninfective complications survived the operation, and 4 are long-term survivors. One patient who underwent a Bentall procedure 71/2 years after heterotopic heart transplantation died in the perioperative period of low-output syndrome secondary to underestimated chronic rejection of the graft. One patient with pseudoaneurysm survives without surgical treatment but died several years later of cardiac arrest due to chronic rejection. Both patients operated on for evolving infective pseudoaneurysm died in the perioperative period. CONCLUSIONS: Infective pseudoaneurysms of the aortic anastomosis are associated with a significant mortality. In noninfective complications, an aggressive surgical approach offers good long-term results. The possibility of retransplantation in spite of complex surgical repair should be considered in the late follow-up after heart transplantation, due to the increasing incidence of chronic rejection.
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16/725. Separate revascularization of the visceral arteries in thoracoabdominal aneurysm repair.

    We successfully repaired a ruptured aortic patch containing the visceral arteries after thoracoabdominal aneurysm repair in a young patient with marfan syndrome. This unexpected and tricky situation was treated by separate revascularization of each visceral artery using small-caliber prosthetic grafts as interposition between the aortic prosthesis and the ostia of the visceral arteries.
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17/725. Repair of type IV thoracoabdominal aneurysm with a combined endovascular and surgical approach.

    We report an unusual case of type IV Thoracoabdominal Aneurysm (TAA) with Superior Mesenteric Artery (SMA), celiac artery, and bilateral renal artery aneurysms in a patient who underwent an earlier repair of two infrarenal Abdominal aortic aneurysm (AAA) ruptures. Because of the presence of the visceral artery aneurysms and the earlier operation through the retroperitoneum, standard surgical treatment via a retroperitoneal approach with an inclusion grafting technique was considered difficult. A combined surgical approach achieving retrograde perfusion of all four visceral vessels and endovascular grafting allowing exclusion of the TAA was accomplished. Complete exclusion of the aneurysm and normal perfusion of the patient's viscera was documented by means of follow-up examinations at 3 and 6 months. The repair of a type IV TAA with a Combined Endovascular and Surgical Approach (CESA) allowed us to manage both the aortic and visceral aneurysms without thoracotomy or re-do retroperitoneal exposure and minimized visceral ischemia time. If the durability of this approach is confirmed, it may represent an attractive alternative in patients with aneurysmal involvement of the visceral segment of the aorta.
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18/725. Intraoperative rupture of an abdominal aortic aneurysm during an endovascular stent-graft procedure.

    PURPOSE: To highlight the risk of intraoperative rupture as a complication of endovascular aortic repair. CLINICAL FEATURES: An 81-yr-old man was admitted for endovascular aortic repair of a 6 cm infrarenal abdominal aortic aneurysm. After establishment of a conduction blockade using a combined spinal-epidural technique, a balloon-activated endovascular stent-graft was advanced to the proximal aneurysmal neck. Approximately four minutes after the stent-graft was deployed, the mean arterial pressure decreased to 30 mmHg and the heart rate increased to 135 bpm. While fluid and vasoactive medications were administered and the airway was secured, repeat aortography confirmed contrast extravasation into the retroperitoneal space at the junction of the proximal aortic neck and the aneurysm sac. The angioplasty deployment balloon was repositioned and inflated proximal to the presumed site of aortic rupture, thus providing aortic control until an open repair of the aorta was undertaken. CONCLUSION: Although endovascular stent-graft placement may be a less invasive method than conventional open aortic reconstruction, it must be recognized that the potential for devastating consequences such as aortic rupture is present.
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19/725. Acute rupture of an aortic false aneurysm treated with a stent-graft.

    PURPOSE: To report the use of an aortic endograft to treat a ruptured false aneurysm at the anastomosis of an aortofemoral bypass graft. methods AND RESULTS: A 68-year-old man with a 30-year-old aorto-right femoral bypass and multiple comorbidities was admitted to the hospital complaining of acute abdominal pain. Imaging identified a 60-mm ruptured aortic false aneurysm with associated retroperitoneal hematoma, a 9-cm right femoral false aneurysm, and a calcified 23-mm left common iliac aneurysm. Two slightly overlapping Vanguard straight stent-grafts were implanted in the aorta and left common iliac artery in an emergency procedure owing to the patient's high surgical risk. The anastomotic false aneurysm and the bypass were excluded. A left-to-right femorofemoral bypass was performed to re-establish flow to the right femoral artery with ligation of the external iliac artery. The patient recovered uneventfully. He remained well with a successful repair until his death of a myocardial infarction 6 months after the procedure. CONCLUSIONS: Endovascular grafting can be used successfully for the urgent treatment of aortic false aneurysm rupture.
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20/725. Successful surgical treatment of impending rupture of thoracoabdominal aortic aneurysm in an elderly patient with severe pulmonary emphysema.

    In a case of successful surgery for impending thoracoabdominal aortic aneurysmic rupture, an 83-year-old man with severe pulmonary emphysema was transferred to our hospital diagnosed with impending aneurysmic rupture. The aneurysm had been pointed out 2.5 years ago but surgical repair was not undertaken due to the patient's severe pulmonary emphysema. After admission, computed tomography showed an enlarging saccular thoracoabdominal aortic aneurysm. Emergency surgery was conducted because of severe pain below the left costal margin. We resected the wall of the saccular aortic aneurysm and reconstructed the aorta with an on-lay patch under femoro-femoral bypass and selective visceral organ perfusion. tracheostomy provided respiratory care on the day following surgery. The patient was weaned from respiratory support 6 days after surgery. Postoperative aortography showed that the reconstructed thoracoabdominal aorta functioned satisfactorily. The patient remains in good health 18 months after surgery.
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