PULMONARY ARTERY INFLAMMATION IN NON-SPECIFIC AORTOARTERITIS. Review

Relevance. Nonspecific aortoarteritis (NAA) or Takayasu's disease can exacerbate life-threatening arteritis of the pulmonary artery (LA), which is usually diagnosed with delay and lead to a poor prognosis. Objective: to review the literature data on LA lesions in NAA to improve the diagnosis and timely appointment of appropriate treatment for better the prognosis of the overall outcome. Methods. Review of scientific literature in international electronic databases PubMed, Google Scholar by keywords for the period 2007-2022. The search was conducted by two independent authors. 90 sources were selected for analysis, of which 43 were used, which were written in English and met the search criteria. Results. In NAA, LA lesions are not a rare pathology, which is observed in 5.7-66% of cases. LA arteritis can manifest itself in the form of stenosis, occlusion, dilatation, aneurysm, thrombosis in situ, and thickening of the arteries. When LA is involved in the pathological process, the risk of developing pulmonary hypertension (LH), heart failure, and lung parenchymal lesions increases, which worsens the prognosis of such patients. The pathology of LA is often diagnosed with a delay due to nonspecific symptoms. It should be noted that in NAA LH can develop not only due to LA arteritis but also due to the presence of pathology in the left heart. Conclusions. LA lesions are common in patients with NAA, however, are often diagnosed with a delay. Involvement of LA in the pathological process can lead to the development of LH, HF, and lung parenchymal lesions and worsen the prognosis, so early diagnosis and timely appropriate treatment are important to reduce morbidity and mortality due to LA lesions in NAA. In addition, pulmonary blood flow and intracardiac hemodynamics should be monitored regularly.