Medical Student Research Fellowship for Summer 2006

Mentor: Dr. Bart Dolmatch
Department: Radiology/Interventional Radiology
Room number: HP06.600B
Mail Code: 8834
Phone number: 214-645-8995
E-mail: Bart.Dolmatch@UTSouthwestern.edu
Project title: Fistulogram Findings Following Placement of Covered Stents (i.e. Fluency and Viabahn) in AV (Arteriovenous) Dialysis Shunts

Human subjects IRB approved project number (where applicable): Pending

Animal subjects IRB approved project number (where applicable): NA

Project Type (patient-based research, animal-based research, or basic research; this characterization is only to permit a general classification for grouping similar types of projects)

The project is patient-based research.

Brief Description of Project:

The primary purpose of this retrospective study is to evaluate fistulogram findings following placement of covered stents (i. e. Fluency and Viabahn stents) in AV (arteriovenous) dialysis shunts. Patients included in the study will be those who have undergone placement of a covered stent at UT Southwestern within the last 5 years. The patency of the graft, stent and AV access circuit will be evaluated as well as the presence or absence of stenotic lesions and, if present, the length and percent stenosis of those lesions. Data to be collected will include:
the date of and indications for the index fistulogram and stenting procedure
the indications for and location, type (i. e. Fluency or Viabahn) and size of stent including whether or not the stent crossed the elbow
whether or not a balloon angioplasty was performed prior to stent placement and, if so, the manufacturer and size of the balloon
presence or absence of complications and nature of same
presence or absence of stenotic lesions at treatment site
type and location of treatment
presence or absence of secondary lesions in the access circuit
type and location of treatment
patency
treatment area primary patency
access circuit primary patency
access circuit assisted primary patency
access circuit cumulative patency

Project title: Sealing of Type III Endoleaks With Ethylene-Vinyl Alcohol Copolymer (EVOH) In a Canine Model

Human subjects IRB approved project number (where applicable): Pending

Animal subjects IRB approved project number (where applicable): NA

Project Type (patient-based research, animal-based research, or basic research; this characterization is only to permit a general classification for grouping similar types of projects)

This project is animal-based research using a canine model.

Brief Description of Project:

The primary purpose of this project is to evaluate the effectiveness of the embolic agent Onyx in providing durable occlusion of type III endographic leaks following repair of abdominal aortic aneurysms. The agent Onyx is an ethylene-vinyl alcohol co-polymer (EVOH).

Previous Research Activities or Publications with Medical Students:

" IRB File Number 042006 - 017: "CTA Findings after the Neo-aortic Iliac System (NAIS) Procedure"

" IRB File Number pending: "Fistulogram Findings Following Placement of Covered Stents (i.e. Fluency and Viabahn) in AV (Arteriovenous) Dialysis Shunts

Previous Research Activities or Publications with Medical Students:

IRB File Number 042006 - 017: CTA Findings after the Neo-aortic Iliac System (NAIS) Procedure
IRB File Number pending: "Sealing of Type III Endoleaks with Ethylene-Vinyl Alcohol Co-polymer (EVOH) in a Canine Model

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