Risk Factors for Superficial Thrombophlebitis: A Retrospective Case Control Study

Miri Schamroth Pravda, Daniel Yehuda, Nili Schamroth Pravda, Eilon Krashin

Research output: Contribution to journalArticlepeer-review

Abstract

BACKGROUND: Data regarding risk factors for superficial thrombophlebitis (STP) cases presenting to a hospital is limited. OBJECTIVES: To investigate and stratify clinical and laboratory risk factors for STP. METHODS: We conducted a retrospective case control study comparing patients presenting to the emergency department with STP and age- and gender-matched controls. We collected data on multiple risk factors and five blood indices. RESULTS: The study comprised 151 patients and matched controls. Patients with STP were more likely to have varicose veins (43.7% vs. 5.3%, P < 0.001), recent immobilization (14.6% vs. 1.3%, P < 0.001), obesity (36.4% vs. 18.5%, P = 0.001), a history of venous thromboembolism (VTE) or STP (27.2% vs. 0.7%, P < 0.001), and inherited thrombophilia (9.3% vs. 1.3%, P = 0.002). Following multivariate analysis, all five risk factors remained significant, with a history of VTE or STP associated with the largest risk (odds ratio [OR] 35.7), followed by immobilization (OR 22.3), varicose veins (OR 12.1), inherited thrombophilia (OR 6.1), and obesity (OR 2.7). Mean platelet volume was higher (8.5 vs 7.9 fl, P = 0.003) in STP cases. CONCLUSIONS: A history of VTE or STP, immobilization, varicose veins, inherited thrombophilia, and obesity serve as independent clinical risk factors for STP presenting to hospital.

Original languageEnglish
Pages (from-to)847-850
Number of pages4
JournalIsrael Medical Association Journal
Volume25
Issue number12
StatePublished - 1 Dec 2022

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