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Merck Manual
Veterinary Manual
The trusted provider of veterinary information since 1955

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VETERINARY PET
ECG, atrial flutter, dog
ecg-atrial-flutter-dog-kittleson-sized
ECG, atrial flutter, dog

    This ECG shows atrial flutter in a dog. The atrial rate is steady at 440 bpm. Every 4th to 7th atrial depolarization (P wave) gets through the AV node to generate ventricular depolarization (QRS complex).

Courtesy of Dr. Mark D. Kittleson.

In these topics
Heart Disease: Conduction Abnormalities in Dogs and Cats

Merck & Co., Inc., Rahway, NJ, USA (known as MSD outside of the US and Canada) is dedicated to using the power of leading-edge science to save and improve lives around the world.  The Merck Veterinary Manual was first published in 1955 as a service to the community.  The legacy of this great resource continues as the Merck Veterinary Manual in the US and Canada and the MSD Vet Manual outside of North America.

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