A 49-year-old male patient complains of dyspnea of combined nature, cough, shin edemata, abdomen enlargement due to ascites. He has a 20-year history of chronic bronchitis. For the last 3 years he has been disabled (group II) because of cardiac changes. Objectively: mixed cyanosis, edemata. Ps - 92/min, rhythmic, AP - 120/70 mm Hg, respiration rate - 24/min. There is accentuation of the second sound above the pulmonary artery. Auscultation reveals the box resonance above the lungs. There are also dry rales over the entire surface of lungs. What is the mechanism of heart changes development in this patient?