Page 439 - Cardiac Nursing

19.
19.
a
a
pta
pta
41
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K34
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18_
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LWB K34 0-c 18_ p40 0-4 19. qxd 6 /30 /09 7 7 :58 P M P a g g e e 41 5 A pta ra Inc . .
K34
LWBK340-c18_18_p400-419.qxd 6/30/09 7:58 PM Page 415 Aptara Inc.
Inc
ra
0-4
RF catheter
Right superior
pulmonary vein
RF lesion site
Transseptal sheats Left superior
pulmonary vein
Left inferior
pulmonary vein
Right inferior
pumonary vein

C

0 10 0 10
I
I
II
II
III
III
V1
V1
PVP
A
PV 1/2
PV 1/2
PV 2/3
PV 2/3
PV 3/4
PV 3/4
PV 4/5
PV 4/5
PV 5/6
PV 5/6
PV 6/7
PV 6/7
PV 7/8
PV 7/8
PV 8/9
PV 8/9
PV 9/10
PV 9/10
PV 10-1
PV 10-1
CS 3-4
CS 3-4

0 10 0 10

■ Figure 18-7 (continued) (C) Diagram of AF ablation. (1) Intracardiac electrograms showing pulmonary vein
potentials prior to ablation and (2) loss of pulmonary vein potentials (electrical isolation) after ablation. A, far field
atrial electrogram; EAT, ectopic atrial tachycardia; LAT, left atrial tachycardia; PVP, pulmonary vein potential.