ISSN: 2044-9038 (Print) 2044-9046 (Electronic)

Clinical Practice

Lung Diseases Peer-review Journals

   Lung diseases are some of the most common medical conditions in the world. Tens of millions of people have lung disease in the U.S. alone. Smoking, infections, and genes cause most lung diseases.   Your lungs are part of a complex system, expanding and relaxing thousands of times each day to bring in oxygen and send out carbon dioxide. Lung disease can happen when there are problems in any part of this system our windpipe (trachea) branches into tubes called bronchi, which in turn become smaller tubes throughout your lungs. Diseases that can affect these airways include:   ·         Asthma. Your airways are constantly inflamed and may spasm, causing wheezing and shortness of breath. Allergies, infections, or pollution can trigger asthma symptoms. ·         Chronic obstructive pulmonary disease (COPD). With this lung condition, you can’t exhale the way you usually would, which causes trouble breathing. ·         Chronic bronchitis. This form of COPD brings a long-term wet cough. ·         Emphysema. Lung damage allows air to be trapped in your lungs in this form of COPD. Trouble blowing air out is its hallmark. ·         Acute  bronchitis. This sudden infection of your airways is usually caused by a virus. ·         Cystic fibrosis. With this condition, you have trouble clearing mucus out of your bronchi. This leads to repeated lung infections. ·         Your airways branch into tiny tubes (bronchioles) that end in clusters of air sacs called alveoli. These air sacs make up most of your lung tissue. Lung diseases affecting your alveoli include: ·         Pneumonia. An infection of your alveoli, usually by bacteria or viruses, including the coronavirus that causes COVID-19. ·         Tuberculosis Pneumonia that slowly gets worse, caused by the bacteria Mycobacterium tuberculosis. ·         Emphysema. This happens when the fragile links between alveoli are damaged. Smoking is the usual cause. (Emphysema also limits airflow, affecting your airways.) ·         Pulmonary edema. Fluid leaks out of the small blood vessels of your lung into the air sacs and the area around them. One form is caused by heart failure and back pressure in your lungs' blood vessels. In another form, injury to your lung causes the leak of fluid. ·         Lung cancer. It has many forms and may start in any part of your lungs. It most often happens in the main part of your lung, in or near the air sacs. ·         Acute respiratory distress syndrome  (ARDS). This is a severe, sudden injury to the lungs from a serious illness. COVID-19 is one example. Many people who have ARDS need help breathing from a machine called a ventilator until their lungs recover.  

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