Heart failure is a very complex matter in canines. One day you see that your Shih Tzu is fine and then the very next day, something terrible just happened. This is because people usually don’t see the signs from before or understand them. Here, know about heart failures in a bit more depth.
What is a heart failure in Shih Tzu?
This complex matter of heart failure develops from the congenital and acquired heart diseases. It can either be a backward failure or a forward failure where the cardiac output gets low. Now, as the heart functions stop working properly, the vasculature increases as a result of activation and up-regulation of the neurohormonal system.