Vein mapping prior to endovenous catheter ablation of the great saphenous vein predicts risk of endovenous heat-induced thrombosis.
OBJECTIVE
We investigate the value of vein mapping for predicting the risk of endovenous heat-induced thrombosis (EHIT) after endovenous laser treatment (EVLT) and radiofrequency ablation (RFA) of the great saphenous vein (GSV).


METHODS
In all, 355 consecutive vein mappings were retrospectively analyzed. A generalized estimating equations approach to linear logistic regression was used to evaluate the variables.


RESULTS
Among the 312 vein ablation of the GSV, 10 (3.2%) developed EHIT. When comparing the group of patients who developed EHIT versus no EHIT, the mean GSV diameter was 13.05 ± 5.59 mm versus 8.39 ± 3.38 mm (odds ratio [OR]: 1.25, P = .001), the presence of valvular incompetence at the saphenofemoral junction (SFJ) was 10.71% versus 0.44% (OR: 27.75, P =.001), and 3.09% in RFA versus 3.33% in EVLT (OR: 1.09, P = .89).


CONCLUSIONS
Patients with valvular insufficiency of the SFJ and a large proximal GSV diameter had a significantly higher risk of developing heat-induced thrombosis after endovenous catheter ablation.
Division of Vascular Surgery, Henry Ford Hospital, Detroit, MI 48202, USA. jlin1@hfhs.org
Judith C
JC
Lin
Edward L
EL
Peterson
Melinda L
ML
Rivera
Jennifer J
JJ
Smith
Mitchell R
MR
Weaver
D017115:Catheter Ablation / Q000009:adverse effects*; D002908:Chronic Disease; D005260:Female; D006801:Humans; D053685:Laser Therapy / Q000009:adverse effects*; D016015:Logistic Models; D008297:Male; D008824:Michigan; D008875:Middle Aged; D016017:Odds Ratio; D011237:Predictive Value of Tests; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D012501:Saphenous Vein / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D016896:Treatment Outcome; D018616:Ultrasonography, Doppler, Duplex; D014689:Venous Insufficiency / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D020246:Venous Thrombosis / Q000209:etiology* / Q000503:physiopathology; D055422:Venous Valves / Q000503:physiopathology