Page 438 - Cardiac Nursing

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414 P A R T III / Assessment of Heart Disease
Atrial mapping
catheter His bundle
catheter
RF catheter
Coronary sinus
catheter

RF lesion site for
typical atrial flutter

B
Atrial Flutter Ablation
I
500 ms
II S
Ventricular beats
V1

ABL p

ABL d

CS 9,10
Atrial electrograms in
sinus rhythm
CS 7,8 T
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Atrial flutter electrograms aaas
At At tr ri ia al f fl lut tte er e ele ec ct tro og gr ra am
een on coronary sinus caththeheeteter
s seee en on co oro on na ar ry s s in nu us ca at e
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CS 5,6
CS 3,4
CS 1,2
50 0 0 0 mm llg
50 mm llg
Stlm 3
P1 ART
11:42:19 AM 11:42:20 AM 11:42:21 AM 11:42:22 AM 11:42:23 AM
CardioLab v5.1D
GE Medical Systems Information Technologies
■ Figure 18-7 (continued) (B) (1) Diagram of catheter ablation of right atrial isthmus-dependent flutter and
(2) intracardiac electrograms showing termination of atrial flutter during ablation. (continued)