The Experts below are selected from a list of 279 Experts worldwide ranked by ideXlab platform
Joseph J. Bookstein - One of the best experts on this subject based on the ideXlab platform.
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Percutaneous Introducibility of the Expandable Vascular Sheath System and Injury Potential of Balloon-Assisted Thrombectomy: Preliminary In Vivo Results
CardioVascular and Interventional Radiology, 1999Co-Authors: Joachim Brossmann, Parviz Haghighi, Joseph J. BooksteinAbstract:Purpose: To test the percutaneous introducibility of the expandable Vascular sheath (EVS) system and the safety of percutaneous balloon-assisted thrombectomy. Methods: The EVS was inserted directly ( n = 9) or through a 9.5 Fr regular Vascular Introducer sheath ( n = 9) into the femoral arteries and veins and carotid arteries in four dogs (18–21 kg). Balloon-assisted thrombectomies were simulated in iliac arteries. Histologic examinations were done at sites of funnel deployment immediately ( n = 4) and 25 days ( n = 8) after the intervention. Results: The EVS was successfully introduced into six of nine vessels by a direct percutaneous approach. Balloon-assisted thrombectomy using the EVS device caused localized intimal denudation, disruption of the internal elastic lamina, and mild hemorrhages into the media; one arterial dissection at the site of funnel deployment was seen. All indirect insertions and funnel deployments were successful. Twenty-five days after the experiments, intimal hyperplasia was noted in all cases. Conclusion: Percutaneous balloon-assisted thrombectomy may cause mild Vascular injuries. Direct percutaneous introduction of the EVS device cannot be recommended yet.
Joachim Brossmann - One of the best experts on this subject based on the ideXlab platform.
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Percutaneous Introducibility of the Expandable Vascular Sheath System and Injury Potential of Balloon-Assisted Thrombectomy: Preliminary In Vivo Results
CardioVascular and Interventional Radiology, 1999Co-Authors: Joachim Brossmann, Parviz Haghighi, Joseph J. BooksteinAbstract:Purpose: To test the percutaneous introducibility of the expandable Vascular sheath (EVS) system and the safety of percutaneous balloon-assisted thrombectomy. Methods: The EVS was inserted directly ( n = 9) or through a 9.5 Fr regular Vascular Introducer sheath ( n = 9) into the femoral arteries and veins and carotid arteries in four dogs (18–21 kg). Balloon-assisted thrombectomies were simulated in iliac arteries. Histologic examinations were done at sites of funnel deployment immediately ( n = 4) and 25 days ( n = 8) after the intervention. Results: The EVS was successfully introduced into six of nine vessels by a direct percutaneous approach. Balloon-assisted thrombectomy using the EVS device caused localized intimal denudation, disruption of the internal elastic lamina, and mild hemorrhages into the media; one arterial dissection at the site of funnel deployment was seen. All indirect insertions and funnel deployments were successful. Twenty-five days after the experiments, intimal hyperplasia was noted in all cases. Conclusion: Percutaneous balloon-assisted thrombectomy may cause mild Vascular injuries. Direct percutaneous introduction of the EVS device cannot be recommended yet.
Charanjit S. Rihal - One of the best experts on this subject based on the ideXlab platform.
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Complications of endoVascular polymers associated with Vascular Introducer sheaths and metallic coils in 3 patients, with literature review.
The American Journal of Surgical Pathology, 2008Co-Authors: Michael E. Fealey, William D. Edwards, Caterina Giannini, David G. Piepgras, Harry J. Cloft, Charanjit S. RihalAbstract:Background Hydrophilic coatings on arterial Introducer sheaths reduce the frequency of spasm during cardiac catheterization. Moreover, during treatment of cerebral artery aneurysms, hydrophilic coatings on microcatheters ease their maneuverability, and polymers within embolization coils enhance neointimal fibrosis at the aneurysm neck. Foreign-body giant cell reactions can result when a polymer is stripped from its source. CASES 1 AND 2: A 51-year-old man and a 66-year-old woman underwent coronary angiography via the radial artery, using hydrophilic-coated sheaths. They both developed tender lesions at the access site 2 weeks later. Microscopy of resected lesions showed pieces of hydrophilic coating and granulomatous inflammation, as has been reported by others. CASE 3: A 58-year-old woman underwent embolization of a ruptured distal right internal carotid artery aneurysm using polymer-containing coils. Nine months later, she began developing multiple right-sided cerebral ring-enhancing lesions. Biopsy revealed granulomas and microabscesses, in which polymer filaments were later identified. To our knowledge, this complication has not been described previously. Conclusions Hydrophilic coating may dislodge and induce a prominent foreign-body granulomatous response or microabscesses. Although the culprit radial artery sheath is now rarely used, embolization coils containing polymers are commonly deployed in clinical practice and may be a source of recurrent inflammatory lesions.
Parviz Haghighi - One of the best experts on this subject based on the ideXlab platform.
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Percutaneous Introducibility of the Expandable Vascular Sheath System and Injury Potential of Balloon-Assisted Thrombectomy: Preliminary In Vivo Results
CardioVascular and Interventional Radiology, 1999Co-Authors: Joachim Brossmann, Parviz Haghighi, Joseph J. BooksteinAbstract:Purpose: To test the percutaneous introducibility of the expandable Vascular sheath (EVS) system and the safety of percutaneous balloon-assisted thrombectomy. Methods: The EVS was inserted directly ( n = 9) or through a 9.5 Fr regular Vascular Introducer sheath ( n = 9) into the femoral arteries and veins and carotid arteries in four dogs (18–21 kg). Balloon-assisted thrombectomies were simulated in iliac arteries. Histologic examinations were done at sites of funnel deployment immediately ( n = 4) and 25 days ( n = 8) after the intervention. Results: The EVS was successfully introduced into six of nine vessels by a direct percutaneous approach. Balloon-assisted thrombectomy using the EVS device caused localized intimal denudation, disruption of the internal elastic lamina, and mild hemorrhages into the media; one arterial dissection at the site of funnel deployment was seen. All indirect insertions and funnel deployments were successful. Twenty-five days after the experiments, intimal hyperplasia was noted in all cases. Conclusion: Percutaneous balloon-assisted thrombectomy may cause mild Vascular injuries. Direct percutaneous introduction of the EVS device cannot be recommended yet.
Javier Irurzun - One of the best experts on this subject based on the ideXlab platform.
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Effectiveness and Safety of Balloon Dilation of the Papilla and the Use of an Occlusion Balloon for Clearance of Bile Duct Calculi
AJR. American journal of roentgenology, 2000Co-Authors: Santiago Gil, P De La Iglesia, José F Verdú, F De España, Juan Arenas, Javier IrurzunAbstract:OBJECTIVE. The purpose of this study was to describe a technique for percutaneous bile duct stone clearance by pushing the stones into the small bowel after balloon dilation of the papilla.SUBJECTS AND METHODS. During a 2-year period, 38 patients were treated percutaneously for stones in the biliary tree. Twenty-one patients were treated through a T tube or transcystic tract. Seventeen patients were treated through a transhepatic tract. Twenty-three patients had one stone each. Eight patients had two stones, and seven patients had three or more calculi. Stone size ranged from 3 to 16 mm in diameter (mean size, 6.7 mm). Balloon diameter based on the transverse diameter of the stones ranged from 7 to 18 mm (mean, 6.7 mm). An 11.5-mm occlusion balloon was used for pushing the stones through a 7- to 9-French Vascular Introducer. A catheter was left in the common bile duct from 1 to 6 days for external drainage.RESULTS. The technique was successfully used for clearance of stones in 36 (94.7%) of the 38 patient...
