Case Studies In Small Animal

Cardiovascular Medicine

Home Up ECG 1 ECG 2 ECG 3 ECG 4 ECG 5 ECG 6 ECG 7 ECG 8 ECG 9 ECG 10 ECG 11 ECG 12 ECG 13 ECG 14 ECG 15 ECG 16 ECG 17 ECG 18 ECG 19 ECG 20 ECG 21 ECG 22 ECG 23 ECG 24 ECG 25 ECG 26

ECG 18

Signalment: Twelve-year-old spayed female miniature schnauzer (Sophie)

Diagnosis: Episodes of collapse (6 episodes yesterday)

ECG on Presentation


Correct Quiz


Following Therapy

The dog had a permanent pacemaker implanted. The lead was placed in the apex of the right ventricle and the generator set to VVI mode. Notice the P waves (sometimes positive and sometimes negative) in the ST segment following each QRS complex. These are due to retrograde conduction through the AV node to the atria.

Mark D. Kittleson, D.V.M., Ph.D. All rights reserved.