The Patency Rate of Endovascular Procedure in Patients with Superior Vena Cava Syndrome Caused by Intravenous Catheterization: A Case Series and Longitudinal Study
Introduction: Different methods have been well addressed in literature in terms of treating superior vena cava (SVC) syndrome; nevertheless, the patency of endovascular treatment has rarely been investigated in patients with SVC syndrome in patients with central venous access. Objectives: The present study was performed to assess the patency rate of endovascular procedure in patients with SVC syndrome caused by intravenous catheterization. Methods: The present case series and longitudinal study was conducted on patients with SVC syndrome in presence of central venous catheter who underwent venoplasty. Computed tomography (CT) venography was performed 1, 6 and 12 months after venoplasty. Facial swelling, facial discomfort, extremity edema, arteriovenous fistula (AVF) dysfunction, impairment in dialysis and SVC stenosis were measured at baseline and 1, 6 and 12 months after venoplasty. Results: Out of 20 investigated patients, 11 (55%) were male. Significantly decreases were observed in the median grades of facial swelling and extremity edema in the follow-up (P<0.001). The decrease in facial discomfort was statistically insignificant (P=0.129), and the median grade of SVC stenosis significantly decreased from 1.5 to zero in the follow-up (P<0.001). A statistically-significant decrease was observed in AVF dysfunction (P=0.007), and impairment in dialysis significantly decreased after the intervention during the follow-up (P<0.001). Conclusion: Findings of the present study revealed the appropriate patency rate of endovascular treatment in patients with SVC syndrome in presence of central venous catheter.
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