KHẢO SÁT BIẾN CHỨNG HUYẾT KHỐI TĨNH MẠCH SÂU TẠI VỊ TRÍ ĐƯỜNG VÀO MẠCH MÁU SAU THỦ THUẬT THĂM DÒ VÀ CAN THIỆP ĐIỆN SINH LÝ TIM

Abstract

Aims: Cardiac electrophysiological study and radiofequency catheter ablation are established methods for assessment and treatment for arrhythmia. Multiple intracardiac catheters are often necessary for electrophysiological study (EPS) and radiofrequency (RF) ablation therapy. Therefore, multiple venous sheath placement in one femoral vein is always required for multiple intracardiac catheter insertion.  Presence of the catheter in the vein increases the risk of blood clot formation, especially deep veinous thrombosis. The vascular complications incurred by placement of multiple sheaths have not been fully studied. We utilized duplex ultrasonography to assess the femoral veins before and after the procedure. Subjects and methods: A cross-sectional, cluster-descriptive study on 144 patients with longitudinal follow-up after 01 month of the procedure at Thanh Hoa Provincial General Hospital from February 2022 to October 2022. All patients underwent routine Doppler ultrasound of lower extremity vessels before and immediately after procedures. In addition, at the follow-up visit after 1 month to assess and monitor venous thromboembolism events. Results: In 144 patients (mean age 54.7 ± 15.5 years with 87% being female) underwent procedures (mean time was 52.9 ± 9.8 minutes). Non-occlusive deep vein thrombosis (DVT) occurred in 10 patients (6.9%) on the day following the procedure. There were no significant differences in major complications when multiple sheath placement was compared with single sheath placement. Sex, height, BMI, venous diameter, multiple sheath placement, mean procedure time, average power as well as temperature during ablation all failed to have a significant influence on venous thrombosis.