Abstract
Introduction: Thromboembolic events are a rare complication of severe ovarian hyperstimulation syndrome (OHSS). In contrast to the classical left ilio-femoral deep vein thrombosis casesduring pregnancy,atypical localization in upper extremity, including internal jugular vein (IJV)is also reported. Review of the literature: We reviewed 39 cases of IJV thrombosis associated with OHSS mostly during assisted reproductive treatment. The diagnosis was made during first trimester, mainly with Doppler ultrasound, and treatment with heparin was initiated in all cases. In 14 patients another risk factor for thromboembolic event was reported (50% had FV-Leiden mutation). The IJV was extended in upper extremityincluding axillary, subclavian or superior vena cava in 46%, whereas pulmonary embolism was reported in 10% of cases. Discussion: Obstetricians should be aware of the rare complication of deep vein thrombosis in upper extremity including thrombosis of IJV, even weeks after OHSS symptoms have resolved.Patients with OHSS after assisted reproductive treatmentshould be prescribed heparin in prophylactic dose during the first trimester.
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