What is cardiac murmur in pets?

To explain cardiac murmur it is necessary to familiar with activities of heart.

Heart has two activities:

1- Electrical activity which leads to mechanical activity

2- Mechanical activity which produces heart sounds.

Electrical activity can be showed as a wave which is named electrocardiogram-ECG.

Actually contraction of heart muscles, opening and closing heart valves also flow of blood in heart chambers lead to heart sounds.

When the heart is in contractile position it is named systolic period and when it is in relax situation it is named diastolic period.These two periods  produce special sounds similar to LUP and DUP pronunciation respectively which can be listened by a stethoscope.They are named systolic and diastolic sound.

Normally there is no additional sound  between LUP and DUP. Any additional sound is cardiac murmur .Cardiac murmur is classified as systolic murmur, diastolic murmur and if additional sound is listened in systolic and diastolic period it is named machinery murmur.

Cardiac murmur can be physiologic or pathologic. Pathological forms need treatment.

This entry was posted in Pet Diseases and tagged , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s