Comparative Study Of Radiation Exposure On Radiofrequency Cathether Ablation For Tachyarrhythmia By Cartounivu And Carto3

Objective:To compare the radiation exposure on radiofrequency catheter ablation(RFCA)for tachyarrhythmia by Carto Univu system and Carto3 System to evaluate the superiority of Carto Univu system.Methods:Between March 2016 and March 2017,a total of 58 patients with tachyarrhythmia,include 42 cases of paroxysmal supraventricular tachycardia(PSVT)and 16 cases of premature ventricular contraction and/or ventricular tachycardia(PVC/VT),according to 1:1 ratio were assigned either ablated with the guidance of the Carto Univu sysem(Carto Univu group)or ablated with the guidance of the Carto3 system(Carto3 group).Operation success rate,complication rate,operation time,X-ray fluoroscopy time,X-ray fluoroscopy cumulative air kerma,X-ray equivalent dose in 4 parts of patient body(thyroid gland,left back,perineum,lef upper arm),X-ray equivalent dose in 10 parts ofoperator body(eye,the thyroid gland site of lead protective suit inside,the thyroid gland site of lead protective suit outside,the left chest site of lead protective suit inside,the left chest site of lead protective suit outside,the perineum site of lead protective suit inside,the perineum site of lead protective suit outside,left little finger,right little finger,left ankle)were compared in two groups.Results:58 patients with tachyarrhythmia all were ablated successful,without any significant complications,among them,42 cases with PSVT(21cases in Carto Univu group,21 cases in Carto3 group)and 16 cases with PVC/VT(8 cases in Carto Univu group,8 cases in Carto3 group).For RFCA of PSVT,there was no significant statistically difference(P>0.05)in operation time,X-ray fluoroscopy time,X-ray fluoroscopy cumulative air kerma,X-ray equivalent dose in 4 parts of patient body,X-ray equivalent dose in 10 parts of operator body between Carto Univu group and Carto3 group.For RFCA of PVC/VT,there was no significant statistically difference(P>0.05)in operation time,X-ray equivalent dose in left back of patient,X-ray equivalent dose in 7parts of operator body(the thyroid gland site of lead protective suit inside,the thyroid gland site of lead protective suit outside,the left chest site of lead protective suit inside,the left chest site of lead protective suit outside,the perineum site of lead protective suit inside,the perineum site of lead protective suit outside,left little finger)between Carto Univu group and Carto3 group.For RFCA of PVC/VT,the X-ray fluoroscopy time,X-ray fluoroscopy cumulativeair kerma,X-ray equivalent dose in 3 parts of patient body(thyroid gland,perineum,lef upper arm),X-ray equivalent dose in 3 parts of operator body(eye,right little finger,left ankle),decreased significantly(P<0.05)in Carto Univu group compared with Carto3 group.Conclusion:RFCA of PVC/VT guided by Carto Univu system can markedly reduce fluoroscopic dose when compared to Carto3 system.