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Disclaimer
is pocket guide attempts to define principles of practice that should produce high-quality patient
care. It is applicable to specialists, primary care, and providers at all levels. is pocket guide
should not be considered exclusive of other methods of care reasonably directed at obtaining the same
results. e ultimate judgment concerning the propriety of any course of conduct must be made by
the clinician aer consideration of each individual patient situation. Neither IGC, the medical
associations, nor the authors endorse any product or service associated with the distributor of this
clinical reference tool.
SVSFOL1863
Source
Zierler RE, Jordan WD, Lal BK, Mussa F, Leers S, Fulton J, Pevec W, Hill A, Murad MH. e
Society for Vascular Surgery practice guidelines on follow-up aer vascular surgery arterial
procedures. J Vasc Surg. 2018 Jul;68(1):256-284.
Abbreviations
ABI, ankle-brachial index; CAS, carotid artery stenting ; CCA, common carotid artery; CEA,
carotid endarterectomy; CT, computed tomography; DUS, duplex ultrasound; EDV, end-
diastolic velocity; EVAR, endovascular aneurysm repair; EVT, endovascular therapy; GFV, gra
flow velocity; ICA, internal carotid artery; ISR, in-stent restenosis; MR, magnetic resonance;
PSV, peak systolic velocity; TEVAR, thoracic endovascular aortic repair; Vr, PSV velocity ratio
(PSV at the site of a stenosis divided by the PSV in a normal vessel segment proximal to the
stenosis)
Recommendation Grading
Strength of Recommendation Level of Evidence
1 = Strong Benefits > Risks
Risks > Benefits
A = High Additional research is
considered very unlikely to
change confidence in the
estimate of the effect.
2 = Weak Benefits ≈ Risks
Quality of evidence precludes
accurate assessment of risks
and benefits.
B = Moderate Further research is likely to have
an important impact on the
estimate of the effect.
C = Low Further research is very likely
to change the estimate of the
effect.
Adapted from Guyatt G, Gutterman D, Baumann MH, Addrizzo-Harris D, Hylek EM, Phillips B, et al.
Grading strength of recommendations and quality of evidence in clinical guidelines. Chest 2006;129:174-81.
