Pulmonary artery aneurysm in an adult patient with idiopathic dilatation of the pulmonary artery

Abstract

Idiopathic dilatation of the pulmonary artery (IDPA) is a rare congenital heart disease. It has been described for almost one hundred years, and numerous definitions have been proposed. The IDPA diagnostic criteria have not been updated for years. Secondary to primary disease, pulmonary artery aneurism was recognised as a lethal defect; however, long-term follow-up of patients with IDPA has not been well researched. Thus, indications to medical or surgical treatment are not evidence based. Here, we present a rare case of a 54-year-old patient with IDPA, who remained under observation for 36 years without surgical intervention.

Idiopathic Asymptomatic Aneurysms of Pulmonary Artery and Ascending Aort: A Case Report

“…[2] However specific prevalence of PAA is unknown, it was reported in 1 out of every 14000 autopsies. [3] Eighty-nine percent of all PAAs were located in the main PA, whereas only 11% were located in the pulmonary branches. [4] Fragility of the media with degeneration and disintegration of elastic fibers, high-wall tension and an abnormal pulmonary valve are the causes of pulmonary trunk aneurysm.…”

Differential Abundance of Brain Mitochondrial Proteins in Yak and Cattle: A Proteomics-Based Study

“…Previous studies have shown that the yak trachea, lungs, heart, and other organs are structurally adapted to plateau conditions ( 24 ). Compared with their close relatives such as cattle, these changes include shortening of the trachea, increased thickness of the alveolar septum, thickening of the smooth muscle, and a higher blood cell density ( 25 ). These structural adaptations bestow the yak with a high blood oxygen transport capacity and mitochondrial density, allowing efficient aerobic metabolism.…”