Once the ventricle is whole, the mitral valve shuts. This stops blood from flowing backward in the atrium when the ventricle contracts. In certain arrhythmias like atrial fibrillation which improve the risk of stroke, this chance is usually lowered working with anticoagulants which include warfarin or novel oral anticoagulants.[sixty two] https://ronv234tqk5.blogcudinti.com/profile