In right ventricular inflow tract endocardium pacing group, compare the ESV EDV EF% SV.we found the ESV increased slightly and EDV EF% SV decreased after implantation . But there wasno significance.

• 将右室流入道组起搏术前自身心律下ESV EDV EF%25 SV与术后自身心律下比较看出术后ESV略较术前增大，术后EDV EF%25 SV较术前有减小的趋势，但无统计学意义。