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Prospective Validation of Threshold Criteria for Intervention in Infrainguinal Vein Grafts Undergoing Duplex Surveillance

Prospective Validation of Threshold Criteria for Intervention in Infrainguinal Vein Grafts... Prospective Validation of Threshold Criteria for Intervention in Infrainguinal Vein Grafts Undergoing Duplex Surveillance Alex Westerband, MD, Joseph L. Mills, MD, Sherry Kistler, RN, Scott S. Berman, MD, Glenn C. Hunter, MD, and John M. Marek, MD, Tucson, Arizona Although color flow duplex surveillance (CFDS) of infrainguinal vein grafts has gained wide acceptance, definitive criteria mandating graft revision remain to be established. We prospec- tively evaluated 101 infrainguinal vein grafts undergoing CFDS in order to validate threshold duplex criteria for intervention which were derived from our previous experience and that re- ported by others. Complete CFDS of the bypass conduit and adjacent inflow and outflow arteries and Doppler-derived ankle brachial indices (ABI) were obtained every 3 months × 4 and every 6 months thereafter. The following threshold criteria mandating further evaluation and interven- tion to prevent graft occlusion were applied: high-velocity criteria (HVC) defined as peak systolic velocity (PSV) >300 cm/sec and velocity ratio (Vr) >3.5; low-velocity criteria (LVC) defined as PSV <45 cm/sec; an ABI decrease >0.15. Fifty-one grafts had normal serial CFDS and ABI; none subsequently occluded or required revision. Stenosis was detected by CFDS in 43 grafts (PSV > 180 cm/sec, Vr > 1.5). Within this http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annals of Vascular Surgery Springer Journals

Prospective Validation of Threshold Criteria for Intervention in Infrainguinal Vein Grafts Undergoing Duplex Surveillance

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References (30)

Publisher
Springer Journals
Copyright
Copyright © 1997 by Annals of Vascular Surgery Inc.
Subject
Medicine & Public Health; Abdominal Surgery
ISSN
0890-5096
eISSN
1615-5947
DOI
10.1007/s100169900008
pmid
9061138
Publisher site
See Article on Publisher Site

Abstract

Prospective Validation of Threshold Criteria for Intervention in Infrainguinal Vein Grafts Undergoing Duplex Surveillance Alex Westerband, MD, Joseph L. Mills, MD, Sherry Kistler, RN, Scott S. Berman, MD, Glenn C. Hunter, MD, and John M. Marek, MD, Tucson, Arizona Although color flow duplex surveillance (CFDS) of infrainguinal vein grafts has gained wide acceptance, definitive criteria mandating graft revision remain to be established. We prospec- tively evaluated 101 infrainguinal vein grafts undergoing CFDS in order to validate threshold duplex criteria for intervention which were derived from our previous experience and that re- ported by others. Complete CFDS of the bypass conduit and adjacent inflow and outflow arteries and Doppler-derived ankle brachial indices (ABI) were obtained every 3 months × 4 and every 6 months thereafter. The following threshold criteria mandating further evaluation and interven- tion to prevent graft occlusion were applied: high-velocity criteria (HVC) defined as peak systolic velocity (PSV) >300 cm/sec and velocity ratio (Vr) >3.5; low-velocity criteria (LVC) defined as PSV <45 cm/sec; an ABI decrease >0.15. Fifty-one grafts had normal serial CFDS and ABI; none subsequently occluded or required revision. Stenosis was detected by CFDS in 43 grafts (PSV > 180 cm/sec, Vr > 1.5). Within this

Journal

Annals of Vascular Surgery – Springer Journals

Published: Feb 28, 2014

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