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Article
New Coaxial Transseptal Needle for Creation of Atrial Septal Defects in Adult Sheep
To introduce a new transseptal (TS) needle assembled in our laboratory—the coaxial TS (CTS) needle—and describe our experience with it in creating experimental atrial septal defects (ASD) in adult sheep.
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Article
Twin Valve Caval Stent for Functional Replacement of Incompetent Tricuspid Valve: A Feasibility Animal Study
To evaluate feasibility of a twin valve caval stent (TVCS) for functional replacement of an incompetent tricuspid valve (TV) in an acute animal study.
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Article
Small Intestinal Submucosa Plug for Closure of Dilated Nephrostomy Tracts: A Pilot Study in Swine
The aim of this study was to evaluate efficacy of a plug made of small intestinal submucosa (SIS) for closure of dilated nephrostomy tract in the kidney after nephroscopy. Ten kidneys in 5 swine had nephrostom...
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Article
Thrombus Formation After Percutaneous Catheterization and Manual Compression of the Femoral Artery in Heparinized Sheep
The purpose of this study was to evaluate the angiographic and histopathologic changes in the superficial femoral artery (SFA) in heparinized sheep shortly after catheterization with an 8-Fr sheath and manual ...
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Article
A New Cone-Shaped Aortic Valve Prosthesis for Orthotopic Position: An Experimental Study in Swine
The aim of this experimental study was to evaluate a newly designed cone-shaped aortic valve prosthesis (CAVP) for one-step transcatheter placement in an orthotopic position. The study was conducted in 15 swin...
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Article
Testing Percutaneous Arterial Closure Devices: An Animal Model
The ovine superficial femoral artery was used for testing the efficacy of percutaneous arterial closure devices (PACDs) in their developmental stage. Two topical devices containing chitostan, one staple-mediat...
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Article
Angiographic Evaluation of Carotid Artery Grafting with Prefabricated Small-Diameter, Small-Intestinal Submucosa Grafts in Sheep
The purpose of this study was to report the longitudinal angiographic evaluation of prefabricated lyophilized small-intestinal submucosa (SIS) grafts placed in ovine carotid arteries and to demonstrate a varie...
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Article
Percutaneous Vein Occlusion with Small Intestinal Submucosa: An Experimental Pilot Study in Swine and Sheep
The objective of this study was to investigate the feasibility, outcomes, and amount of small intestinal submucosa (SIS) material needed for embolization of jugular vein (JV) in a swine and sheep model. Our hy...
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Article
Effects of Blood Flow and/or Ventilation Restriction on Radiofrequency Coagulation Size in the Lung: An Experimental Study in Swine
The purpose of this study was to investigate how the restriction of blood flow and/or ventilation affects the radiofrequency (RF) ablation coagulation size in lung parenchyma. Thirty-one RF ablations were done...
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Article
Percutaneous Transcatheter One-Step Mechanical Aortic Disc Valve Prosthesis Implantation: A Preliminary Feasibility Study in Swine
To evaluate the feasibility of one-step implantation of a new type of stent-based mechanical aortic disc valve prosthesis (MADVP) above and across the native aortic valve and its short-term function in swine w...
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Article
Experimental Percutaneous Extrahepatic Portacaval Shunt Creation by Transjugular Approach in Swine
The purpose of the study was to evaluate the feasibility of the creation of a percutaneous extrahepatic portacaval shunt (PEPS) in swine by a transjugular approach and to find a suitable stent-graft to use in ...
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Article
Prophylactic Residual Aneurysmal Sac Embolization with Expandable Hydrogel Embolic Devices for Endoleak Prevention: Preliminary Study in Dogs
To explore the feasibility and efficacy of residual aneurysmal sac (RAS) embolization with the expandable hydrogel embolic device (EHED) in prevention of endoleaks in a surgically created and endoluminally tre...
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Article
A Flexible Stent with Small Intestinal Submucosa Covering for Direct Intrahepatic Portocaval Shunt: Experimental Pilot Study in Swine
The suitability of the flexible sandwich Zilver stent-graft (SZSG) with a biologically active tissue layer (small intestinal submucosa) for creation of the intravascular ultrasound (IVUS)-guided direct intrahe...
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Article
Comparison of Small Intestinal Submucosa-Covered and Noncovered Nitinol Stents with PTFE Endografts in Injured Ovine Femoral Arteries: A Pilot Study
The purpose of this study was to compare performance of small intestinal submucosa (SIS)-covered endografts (SCEs) to polytetra-fluoroethylene (PTFE)-covered endografts (PCEs) and to bare nitinol stents (BSs) ...
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Article
Square Stent: A New Self-Expandable Endoluminal Device and Its Applications
The square stent is a new, simply constructed, self-expanding device that has recently been described. Compared with other stents, the square stent has a minimal amount of metal and thus requires a smaller-dia...
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Article
Percutaneous Transcatheter Aortic Disc Valve Prosthesis Implantation: A Feasibility Study
Purpose: Over the past 30 years there have been experimental efforts at catheter-based management of aortic valve regurgitation with the idea of extending treatment to nonsurgical candidates. A n...
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Article
Retrievable IVC square stent filter: Experimental study
Purpose: In vitro and in vivo evaluation of a new retrievable, home-made, inferior vena cava (IVC) Square stent filter (SSF) with two trap** levels.
