Tang Baopeng

e0269 Impact factors on brachial ankle pulse wave velocity in Xinjiang Han and Uygur hospitalised patients

Objectives To compare impact factors on Ankle Brachial Pulse Wave Velocity (baPWV) in Xinjiang Uygur and Han hospitalised patients and evaluate the clinical significance of baPWV. Methods Using Colin-Noninvasive Atherosclerosis detector BP-203RPE II (VP-1000), baPWV was measured in 5000 Xinjiang Han and Uygur hospitalised patients from the first hospital of Xinjiang Medical University, including 2738 Han and 2262 Uygur. Patients were divided into baPWV≥1400 cm/s (1573Han, 1327 Uygur) and baPWV<1400 cm/s groups (1165Han, 935Uygur). Multivariable logistic regression analyses were performed to identify factors associated with baPWV. Results In both Han and Uygur, Patients with baPWV≥1400 cm/s were older than those baPWV<1400 cm/s, and more frequently had diabetes, stroke and hypertension. No significant differences in gender between two groups. Multiple regression analysis showed that baPWV was significantly associated with pulse pressure, age and hypertension. HDL-C might be protective factor for two ethnicities, Ca++ antagonist might be risk factor of baPWV for Uygur patients. Conclusions In Xinjiang Uygur and Han hospitalised patients, higher baPWV was associated with generalised atherosclerosis. baPWV should be a routine measurement in hospitalised patients. Influenced factors were different in two nationalities, For Uygur patients, influencing of antihypertensives on baPWV should be under consideration.

e0557 CARTO mapping to guide ablation of right ventricular outflow tract tachycardia ventricualr contraction

Objective The aim of this study was to determine whether CARTO mapping is feasible in the right ventricle and assess its utility in guiding ablation of right ventricular outflow tract (RVOT) ventricualr tachycardia (VT). Background In patients with RVOT VT; CARTO mapping permits ablation guided by a VT complex, which may facilitate ablation of VT cases. However, the mapping system may be geometry- dependent, and it has not been validated in the unique geometry of the RVOT. Methods 30 patients with left bundle branch block and right axis VT, no history of structurally cardiac disease and normal left ventricular function underwent CARTO guided ablation. Results The procedure was acutely successful in 27 of 30 patients, 3 had failed ablation. During a mean follow-up of 6 months, 26 of 30 patients remained arrhythmia-free. Conclusions In this study, CARTO mapping was safely and effectively used to guide ablation of patients with RVOT VT.