Search results
Results from the WOW.Com Content Network
Diffuse alveolar damage (DAD) is a histologic term used to describe specific changes that occur to the structure of the lungs during injury or disease. Most often DAD is described in association with the early stages of acute respiratory distress syndrome ( ARDS ). [ 1 ]
Alveoli are the functional units of the lungs. Alveolar lung diseases are classified as processes that affect these units ultimately lead to issues with ventilation. There are a number of different causes of insult to the alveoli including build up of fluid, hemorrhage, infection, malignancy and build up of protein and mineral deposits.
Chronic obstructive pulmonary disease (COPD) is a type of progressive lung disease characterized by chronic respiratory symptoms and airflow limitation. [8] GOLD 2024 defined COPD as a heterogeneous lung condition characterized by chronic respiratory symptoms (dyspnea or shortness of breath, cough, sputum production or exacerbations) due to abnormalities of the airways (bronchitis ...
Overdistension of alveoli and cyclic atelectasis (atelectotrauma) are the primary causes for alveolar injury during positive pressure mechanical ventilation.Severe injury to alveoli causes swelling of the tissues (edema) in the lungs, bleeding of the alveoli, loss of surfactant (decrease in lung compliance) and complete alveoli collapse ().
Interstitial lung disease (ILD), or diffuse parenchymal lung disease (DPLD), [3] is a group of respiratory diseases affecting the interstitium (the tissue) and space around the alveoli (air sacs) of the lungs. [4] It concerns alveolar epithelium, pulmonary capillary endothelium, basement membrane, and perivascular and perilymphatic tissues. It ...
The tissue in the lungs becomes thick and stiff, which affects the tissue that surrounds the air sacs in the lungs. [7] Symptoms typically include gradual onset of shortness of breath and a dry cough. [1] Other changes may include feeling tired, and clubbing abnormally large and dome shaped finger and toenails. [1]
In the setting of NPPE, the excess shift of fluid overcome the ability of the lymphatic system, and fluid (edema) accumulates in the alveoli of the lungs. As these structures are important for gas exchange during respiration, patients with NPPE struggle to have adequate oxygen supply to the tissues of their body. [1] [4]
"Organizing" refers to unresolved pneumonia (in which the alveolar exudate persists and eventually undergoes fibrosis) in which fibrous tissue forms in the alveoli.The phase of resolution and/or remodeling following bacterial infections is commonly referred to as organizing pneumonia, both clinically and pathologically.