Prevalence of Isolated Asymptomatic Deep Vein Thrombosis in Varicose Vein Patients with Superficial Thrombophlebitis: A Single Center Experience in Japan

Ann Vasc Dis. 2016;9(1):2-7. doi: 10.3400/avd.oa.15-00124. Epub 2015 Dec 31.

Abstract

Objective: Prevalence of asymptomatic deep vein thrombosis (DVT) in patients with primary varicose veins remains unclear.

Materials and methods: Here, we conducted a retrospective study to clarify the incidence of asymptomatic DVT in patients with varicose veins, especially focusing on those with superficial thrombophlebitis (STP).

Results: Among 431 patients with primary varicose veins with saphenous vein incompetence, 20 (4.64%) had asymptomatic DVT. The presence of STP was a significant risk factor for asymptomatic DVT as 10 of the 24 (41.7%) patients with STP had asymptomatic DVT, and all cases having calf muscle vein thrombosis. In contrast, of the patients with primary varicose veins without STP only 2.46% had asymptomatic DVT.

Conclusions: In patients with primary varicose veins with STP, significant risk factors for DVT were being over C3 on the clinical, etiological, anatomical, and pathophysiological (CEAP) classification. (This article is a translation of Jpn J Phlebol 2014; 25: 13-19.).

Keywords: deep vein thrombosis; superficial thrombophlebitis; varicose veins.