TY  - BOOK
AU  - Abramowitz, Steven D
TI  - Radiographic Findings of Distressed Venous Stents and Inferior Vena Cava Filters: Clinical Implications
SN  - 0361-803X
PY  - 2017///
KW  - *Graft Occlusion, Vascular/dg [Diagnostic Imaging]
KW  - *Stents
KW  - *Vena Cava Filters
KW  - *Vena Cava, Inferior/dg [Diagnostic Imaging]
KW  - *Venous Thrombosis/dg [Diagnostic Imaging]
KW  - Adolescent
KW  - Adult
KW  - Aged
KW  - Aged, 80 and over
KW  - Endovascular Procedures
KW  - Female
KW  - Graft Occlusion, Vascular/et [Etiology]
KW  - Graft Occlusion, Vascular/th [Therapy]
KW  - Humans
KW  - Male
KW  - Middle Aged
KW  - Phlebography
KW  - Retrospective Studies
KW  - Treatment Outcome
KW  - Vascular Patency
KW  - Venous Thrombosis/et [Etiology]
KW  - Venous Thrombosis/th [Therapy]
KW  - Young Adult
KW  - MedStar Washington Hospital Center
KW  - Surgery/Vascular Surgery
KW  - Journal Article
N1  - Available online from MWHC library: Sept 1965 - present
N2  - CONCLUSION: Distressed intravascular implants are associated with high-grade venous stenosis or occlusion. Reparative interventions are usually technically successful; MATERIALS AND METHODS: Seventy-eight patients with distressed stents or inferior vena cava (IVC) filters characterized by pursing (short-axis contracture), straightening, longitudinal contraction (long-axis contracture), or fracture were identified from retrospective review of a venous registry for the period from February 2004 to October 2016. Patients originally presented with superior vena cava (SVC) syndrome (n = 25), arm swelling (n = 16), iliocaval thrombosis (n = 21), and lower extremity deep venous thrombosis (n = 16), and stents were initially placed in 65 and filters in 13. Implants were located in the IVC (n = 24), subclavian vein (n = 16), brachiocephalic vein (n = 15), common iliac vein (n = 10), multiple veins (n = 4), axillary vein (n = 4), common femoral vein (n = 3), SVC (n = 1), and internal jugular vein (n = 1). Implants included Wallstents in 63 patients; Smart stents in two patients; and Celect Platinum, Denali, Greenfield, and Trapease IVC filters in two, three, two, and six patients, respectively. Venographic indication, distress type, time from initial normal placement to identification of distress, venographic finding (patent, mild stenosis, high-grade stenosis, or occlusion), treatment, revascularization outcome, and complications were recorded; OBJECTIVE: The objective of our study was to describe an association between the radiographic appearance of distressed intravascular implants and venous stenosis or occlusion and to determine the success of reparative endovascular procedures; RESULTS: The mean time to distress was 23 months. Fifty-two (67%) patients underwent venography for symptoms and 26 (33%) for surveillance. Forty-five (58%) implants were pursed; 19 (24%), straightened; nine (12%), contracted; and five (6%), fractured. Venography depicted 48 (62%) high-grade stenoses, 19 (24%) complete occlusions, and six (8%) mild stenoses. Of the 73 patients who underwent an intervention, 29 (40%) underwent angioplasty, 15 (21%) underwent angioplasty and stenting, 15 (21%) underwent sharp recanalization, and five (7%) underwent thrombolysis. Revascularization was successful in 67 (92%). Three minor complications occurred
UR  - https://dx.doi.org/10.2214/AJR.16.17750
ER  -