1 For adult dogs or puppies older than 16 weeks, the intranasal vaccine can be given once, and the injectable vaccine should be given twice, two to four weeks apart.
Signs and symptoms of hypertrophic cardiomyopathy may include one or more of the following: 1  Shortness of breath, especially during exercise. 2  Chest pain, especially during exercise. 3  Fainting, especially during or just after exercise or exertion.  Sensation of rapid, fluttering or pounding heartbeats (palpitations)
Symptoms can include chest pain, dizziness, shortness of breath, or fainting. HCM also can affect the heart's mitral valve, causing blood to leak backward through the valve. Sometimes, the thickened heart muscle doesn't block blood flow out of the left ventricle.This is called non-obstructive hypertrophic cardiomyopathy.The entire ventricle may thicken, or the thickening may happen only at the bottom of the heart. The right ventricle also may be affected.CM is a common cause of sudden cardiac arrest (SCA) in young people, including young athletes. HCM occurs if heart muscle cells enlarge and cause the walls of the ventricles (usually the left ventricle) to thicken. Despite this thickening, the ventricle size often remains normal.