The Experts below are selected from a list of 45 Experts worldwide ranked by ideXlab platform
George Kopchok - One of the best experts on this subject based on the ideXlab platform.
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deployment technique and histopathological evaluation of an endoluminal Vascular Prosthesis used to repair an iliac artery aneurysm
Journal of Endovascular Surgery, 1996Co-Authors: Rodney A. White, Carlos E Donayre, Christian Devirgilio, Eric Weinstein, George KopchokAbstract:PURPOSE: To describe the deployment technique, function, and gross healing of an endoluminal Vascular Prosthesis deployed in a high-risk patient for treatment of a common iliac artery (CIA) aneurysm. METHODS: An 82-year-old, high-risk male with a 4-cm-diameter CIA aneurysm approximately 4.5 to 5 cm long was treated with endoluminal exclusion of the lesion using a 6-cm-long, 14-mm-internal diameter Dacron Vascular Prosthesis with Palmaz 308 stents sutured to either end of the graft. IntraVascular ultrasound (IVUS) imaging facilitated sizing of the endograft and its accurate positioning so as to occlude both the aneurysm and the hypogastric artery, which was a potential source of retrograde flow to the aneurysm. Exclusion of the lesion and occlusion of the hypogastric artery were demonstrated on delayed angiographic images and contrast computed tomography scans obtained at 16 days postprocedure. Unfortunately, the patient died 67 days following implantation from a nonprocedure-related gastrointestinal complication. RESULTS: At autopsy, the aortoiliac segment was excised and examined grossly and histologically; the evaluation confirmed complete isolation of the aneurysm by the fully expanded endoluminal Prosthesis. The surface of the Vascular graft was covered by a glistening, thin, fibrinous membrane. The graft material was filled with hypocellular compact fibrinous material with no evidence of endothelialization. These observations confirm preliminary sealing and isolation of the iliac artery aneurysm as healing of the endograft progressed. CONCLUSIONS: The data acquired from the analysis of this specimen provide information regarding the utility and early healing of an endograft used for iliac artery aneurysm exclusion. This case also exemplifies the utility of IVUS in endograft deployment.
G M Peretti - One of the best experts on this subject based on the ideXlab platform.
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surgical treatment of chronic acromioclavicular dislocation comparison between two surgical procedures for anatomic reconstruction
Injury-international Journal of The Care of The Injured, 2010Co-Authors: G Fraschini, Pietro Ciampi, C Scotti, R Ballis, G M PerettiAbstract:Introduction: Surgical treatment of chronic complete acromioclavicular (AC) joint dislocation is still debated and no gold standard surgical procedure has been identified. Materials and methods: A retrospective series of 90 patients treated for AC dislocations is reported here. Patients were divided into three groups: group 1 receiving AC reconstruction with a Dacron Vascular Prosthesis; group 2 receiving AC reconstruction with LARS 1 artificial ligament; group 3 receiving conservative treatment. Follow-up was performed after 1, 6 and 15 months with plain radiographs, UCLA, SPADI and modified UCLA acromioclavicular rating scales. Results: Patients treated surgically presented significant better functional outcome compared to patients treated conservatively with overall positive results in 93.3% of patients for group 2 and 53.3% of patients for group 1. However, reconstruction with Dacron Vascular Prosthesis presented an unacceptable high complications rate (43.3%). Conclusion: Our results show that anatomic AC reconstruction with LARS 1 artificial ligament resulted in both satisfactory functional outcome and low complication rate. Therefore, we recommend this procedure for the treatment of chronic complete AC dislocations.
Howard Mizrachi - One of the best experts on this subject based on the ideXlab platform.
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angiosarcoma at the site of a Dacron Vascular Prosthesis a case report and literature review
Journal of Vascular Surgery, 1991Co-Authors: Wayne M Weiss, Thomas S Riles, Thomas H Gouge, Howard MizrachiAbstract:Abstract Four of 32 reported sarcomas related to the aorta have arisen around previously placed aortic Vascular prostheses suggesting that the graft may have been an etiologic factor. Our recent experience with such an angiosarcoma arising around a Dacron aortic graft prompted a review of the lesion to identify risk factors, diagnostic approaches, and treatment options. The diagnosis of these sarcomas is seldom made before operation. Animal studies have implicated plastic polymers including Dacron as carcinogenic materials capable of inducing sarcoma in 7% to 50% of exposures. Because of the rarity of these tumors and the thousands of Vascular implants used over the past 30 years, it is unlikely that this degree of risk can be extrapolated to humans. However, a tumor should be included in the differential diagnosis of any mass or thromboembolic event associated with a Vascular Prosthesis. (J VASC SURG 1991;14:87-91.)
Rodney A. White - One of the best experts on this subject based on the ideXlab platform.
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deployment technique and histopathological evaluation of an endoluminal Vascular Prosthesis used to repair an iliac artery aneurysm
Journal of Endovascular Surgery, 1996Co-Authors: Rodney A. White, Carlos E Donayre, Christian Devirgilio, Eric Weinstein, George KopchokAbstract:PURPOSE: To describe the deployment technique, function, and gross healing of an endoluminal Vascular Prosthesis deployed in a high-risk patient for treatment of a common iliac artery (CIA) aneurysm. METHODS: An 82-year-old, high-risk male with a 4-cm-diameter CIA aneurysm approximately 4.5 to 5 cm long was treated with endoluminal exclusion of the lesion using a 6-cm-long, 14-mm-internal diameter Dacron Vascular Prosthesis with Palmaz 308 stents sutured to either end of the graft. IntraVascular ultrasound (IVUS) imaging facilitated sizing of the endograft and its accurate positioning so as to occlude both the aneurysm and the hypogastric artery, which was a potential source of retrograde flow to the aneurysm. Exclusion of the lesion and occlusion of the hypogastric artery were demonstrated on delayed angiographic images and contrast computed tomography scans obtained at 16 days postprocedure. Unfortunately, the patient died 67 days following implantation from a nonprocedure-related gastrointestinal complication. RESULTS: At autopsy, the aortoiliac segment was excised and examined grossly and histologically; the evaluation confirmed complete isolation of the aneurysm by the fully expanded endoluminal Prosthesis. The surface of the Vascular graft was covered by a glistening, thin, fibrinous membrane. The graft material was filled with hypocellular compact fibrinous material with no evidence of endothelialization. These observations confirm preliminary sealing and isolation of the iliac artery aneurysm as healing of the endograft progressed. CONCLUSIONS: The data acquired from the analysis of this specimen provide information regarding the utility and early healing of an endograft used for iliac artery aneurysm exclusion. This case also exemplifies the utility of IVUS in endograft deployment.
G Fraschini - One of the best experts on this subject based on the ideXlab platform.
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surgical treatment of chronic acromioclavicular dislocation comparison between two surgical procedures for anatomic reconstruction
Injury-international Journal of The Care of The Injured, 2010Co-Authors: G Fraschini, Pietro Ciampi, C Scotti, R Ballis, G M PerettiAbstract:Introduction: Surgical treatment of chronic complete acromioclavicular (AC) joint dislocation is still debated and no gold standard surgical procedure has been identified. Materials and methods: A retrospective series of 90 patients treated for AC dislocations is reported here. Patients were divided into three groups: group 1 receiving AC reconstruction with a Dacron Vascular Prosthesis; group 2 receiving AC reconstruction with LARS 1 artificial ligament; group 3 receiving conservative treatment. Follow-up was performed after 1, 6 and 15 months with plain radiographs, UCLA, SPADI and modified UCLA acromioclavicular rating scales. Results: Patients treated surgically presented significant better functional outcome compared to patients treated conservatively with overall positive results in 93.3% of patients for group 2 and 53.3% of patients for group 1. However, reconstruction with Dacron Vascular Prosthesis presented an unacceptable high complications rate (43.3%). Conclusion: Our results show that anatomic AC reconstruction with LARS 1 artificial ligament resulted in both satisfactory functional outcome and low complication rate. Therefore, we recommend this procedure for the treatment of chronic complete AC dislocations.
