Page 434 - Cardiac Nursing

P
M
P
:57
6
/30
/09
a
pta
ra
Inc
pta
a
41
0 A
0-4
p40
18_
qxd
19.
19.
LWBK340-c18_18_p400-419.qxd 6/30/09 7:57 PM Page 410 Aptara Inc.
L L LWB
LWB K34 0-c 18_ p40 0-4 19. qxd 6 /30 /09 7 7 :57 P M P a g g e e 41 0 A pta ra Inc . .
0-c
K34
K34
RF lesion site
C Coronary sinus
c catheter for left lateral
accessory pathway
RF catheter

Right ventricular
catheter

A

RF lesion site for
posterior pathway

Transseptal sheath

RF catheter

Coronary sinus
His bundle
catheter
catheter

Right ventricular
catheter

B
h
d
d
)
A
■ Figure 18-5 Diagram of catheter ablation of f h bl f (A) left lateral AP using aortic approach associated radiograph
lf
h
l
l
in the left anterior oblique view and (B) left posterior lateral AP using transseptal approach. Intracardiac elec-
trograms show (1) retrograde conduction over a left lateral AP during ventricular pacing and (2) retrograde con-
duction up AV node during ventricular pacing after successful ablation of pathway.