Factors Influencing the Incidence of Endovenous Heat-Induced Thrombosis (EHIT)

Rhee, Soo J.; Cantelmo, Nancy L.; Conrad, Mark F.; Stoughton, Julianne

doi:10.1177/1538574413478494

Cited by 86 publications

(57 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…6 But another study which evaluated the influence of procedural factors concluded that there was no difference in catheter tip position or mean diameter of the treated vein between the EHIT and non-EHIT groups. 9 There is no report on association of EHIT with hypercoagulable states.…”

Section: Discussionmentioning

confidence: 98%

Case of the disappearing heat-induced thrombus causing pulmonary embolism during ultrasound evaluation

Sufian¹,

Arnez²,

Lakhanpal³

2012

Journal of Vascular Surgery

View full text Add to dashboard Cite

We report a case of a 58-year-old male patient who underwent successful endovenous radiofrequency ablation of the left great saphenous vein for CEAP class 4a venous disease. On the third postoperative day, he had a duplex ultrasound scan for evaluation which showed successful occlusion of the great saphenous vein (GSV) with class 2 endovenous heat-induced thrombus (EHIT) that disappeared during the evaluation and caused a pulmonary embolism. To our knowledge, no case of pulmonary embolism has been reported to occur during postoperative follow-up duplex scanning. Relevant literature is reviewed and a possible mechanism for thrombus dislodgement is entertained.

show abstract

Section: Discussionmentioning

confidence: 98%

Case of the disappearing heat-induced thrombus causing pulmonary embolism during ultrasound evaluation

Sufian¹,

Arnez²,

Lakhanpal³

2012

Journal of Vascular Surgery

View full text Add to dashboard Cite

show abstract

“…Some authors recommend ultrasound scan within one week given the risk of EHIT in the first 72 hours after treatment. So, in asymptomatic patients, diagnosis of EHIT could be missed if ultrasound scan is delayed (19).…”

Section: Discussionmentioning

confidence: 99%

“…Another important technical detail implicated in EHIT development is the catheter tip position from the saphenous femoral or saphenous popliteal junction (6,15,19). Both for laser and radiofrequency treatment the current recommendations of use from the manufacturer suggest catheter tip position 2 cm from the saphenous femoral or popliteal junction.…”

Section: Discussionmentioning

confidence: 99%

EHIT after thermoablation

Mitri¹,

Leo²,

Romano³

2017

Phlebologie

View full text Add to dashboard Cite

SummaryAim: After 10 years of experience, we evaluated the incidence and management of endothermal heat-induced-thrombosis (EHIT), i.e. saphenous vein thrombosis following endothermic treatment of saphenous vein re-flux.Methods: From 2006 to 2016 data were retrospectively collected on 840 patients undergoing saphenous vein treatment by laser and radiofrequency technique. All patients were treated with tumescent local anaesthesia in an ambulatory setting to promote early mobilization. Class II compression stockings and heparin were recommended for 5 days post-operatively.Results: EHIT was observed in 15 patients from a total of 992 saphenous veins which were evaluated (1,5 %). 14 patients treated by EVLA had EHIT 1, one patient by RFA had EHIT 2, complicated by pulmonary embolism. All EHIT patients were treated by low weight molecular heparin. 980 nm laser and bare-tip fibres had been used in EVLA-EHIT patients. EHIT was not observed in patients treated by 1470 nm laser and radial fibres.Conclusions: Latest generation technology, the ambulatory setting and local anaesthesia probably contributed to the low incidence of EHIT reported. Further studies are necessary for a better acquaintance of these complications and to facilitate the development of specific guidelines.

show abstract

“…On the other hand, some studies reported that EHIT was not related to large saphenous vein diameter, whereas others indicated that there was no relationship between EHIT and age/sex by adopting lasers differing in wavelength; risk factors for EHIT remain controversial. [6][7][8] Based on blood through heat exchange and influx into the femoral vein, and the temperature of steam bubbles may reduce; therefore, this may markedly influence the area adjacent to the starting point of ablation. This suggests that steam bubbles are involved in the pathogenesis of creeping type, 11) because the incidence of creeping type, involving extension to the deep vein, is high in EVLA patients, and because the length is ≤2 to 3 cm.…”

Section: Discussionmentioning

confidence: 99%

Postoperative Venous Thromboembolism in Patients Undergoing Endovenous Laser and Radiofrequency Ablation of the Saphenous Vein

Kurihara

Hirokawa

Yamamoto

2016

Annals of Vascular Diseases

View full text Add to dashboard Cite

Objective: Endovenous laser ablation (EVLA) and radiofrequency ablation (RFA) are safe and effective treatments for varicose veins caused by saphenous reflux. Deep venous thrombosis (DVT) and endovenous heat-induced thrombosis (EHIT) are known complications of these procedures. The purpose of this article is to investigate the incidence of postoperative DVT and EHIT in patients undergoing EVLA and RFA. Methods: The patients were assessed by clinical examination and venous duplex ultrasonography before operation and at 24-72 hours, 1 month, and 1 year follow-up after operation. Endovenous ablation (EVA) had been treated for 1026 limbs (835 patients) using an RFA; 1174 limbs (954 patients) using a 1470-nm wavelength diode laser with radial two-ring fiber (1470R); and 6118 limbs (5513 patients) using a 980-nm wavelength diode laser with bare-tip fiber (980B). Results: DVT was detected in 3 legs (0.3%) of RFA, 5 legs (0.4%) of 1470R, and 27 legs (0.4%) of 980B. One patient in three symptomatic DVT treated with 980B developed asymptomatic pulmonary embolus. In all, 31 of the 35 DVTs were confined to the calf veins. The incidence of EHIT classes 2 and 3 was 2.7% following RFA procedure, 6.7% after 1470R, and 7.5% after 980B. Conclusion: The incidence of EHIT following EVA was low, especially the RFA procedure. EHIT resolves within 2-4 weeks in most patients. DVT rates after EVA were compared with those published for saphenous vein stripping. (This is a translation of J Jpn Coll Angiol 2015; 55: 153-161.)

show abstract

Factors Influencing the Incidence of Endovenous Heat-Induced Thrombosis (EHIT)

Abstract: Male gender and increased Caprini score are predictive factors for EHIT following ETA.

Cited by 86 publications

References 18 publications

Case of the disappearing heat-induced thrombus causing pulmonary embolism during ultrasound evaluation

Case of the disappearing heat-induced thrombus causing pulmonary embolism during ultrasound evaluation

EHIT after thermoablation

Postoperative Venous Thromboembolism in Patients Undergoing Endovenous Laser and Radiofrequency Ablation of the Saphenous Vein

Contact Info

Product

Resources

About