12/19/2024
I've waffled before. I'll waffle again. đ§
In cats that have the obstructive form of HCM (such as Waffle), one of the heartâs valves (the mitral valve) is pulled out of its proper position when the heart contracts. Instead of being closed and preventing backward flow of blood, this valve is pulled into the path of blood as it exits the left ventricle and enters the aorta. The abnormally positioned mitral valve creates an obstruction to forward blood flow, which may provide an additional reason for thickening of a left ventricle that is already too thick. The abnormal position of the mitral valve also causes a backward leak through the valve (âmitral regurgitationâ), since part of the valve is not in the correct location to do its job. In Waffleâs case, the obstructive component of his condition is mild. While it contributes to and may even completely account for his heart murmur, it does not require medical therapy.
Fortunately, Waffle does not have any left atrial enlargement at this time. Therefore, the likelihood that he will develop congestive heart failure appears low for the immediate future. Similarly, he does not appear to be at risk for or a thromboembolic event at this time. We hope this will remain the case but we plan to monitor Waffleâs heart closely to ensure the best quality of life!