Hemodynamics in patients with cardiac asthma

According to the most common opinion, the cause of the development of cardiac asthma is acute weakness of the left ventricle. ND Strazhesko (1925) wrote that in cardiac asthma, congestion in the lungs occurs due to the refusal of the left ventricle to respond by increasing the volume of its contractions against the background of the continuing satisfactory function of the right ventricle. However, this position is contradicted by some, including clinical, data. So, for example, the question arises: why do patients with cardiac asthma develop attacks not during physical activity, when the left ventricle performs increased work, but more often at rest? During asthma attacks against the background of increased heart rate in most patients, blood pressure does not fall, but increases, which indicates the ability of the left ventricle to eject blood in conditions of increased resistance, etc.