Lung Emphysema Causes and Description

Emphysema Description

A pulmonary emphysema is a pathological distension of lungs. In chronic pulmonary emphysema, the tissue loses the affected areas by the continuous stretching of elasticity, a process whichis not irreversible.

In emphysema description, the partition walls of the alveoles (alveoli) are destroyed. To emerge from millions of elastic vesicles big bubbles, which is retained in the air. This increases the gas volume and exhalation difficult. Usually not all lung portions are affected.

The chronic emphysema description, usually occurs as a result of chronic bronchitis and COPD chronic obstructive pulmonary disease in smokers. A rare cause is an inherited predisposition (Alpha-1 antitrypsin deficiency). An estimated ten percent population in the world, include United States, Canada, Brazil, China, Australia, European and Asian people suffer from emphysema.

Several Emphysema Causes

Cause of Emphysema : Chronic Diseases

Most pulmonary emphysema occurs in the context of chronic diseases on bronchi or lungs. These include the Chronic Obstructive Pulmonary Disease (COPD). Much rarer is the Altersemphysem. The Emphysema causes here is a age-related loss of elasticity of the lung tissue that can occur starting from the fifth decade of life. Very rarely is an inborn enzyme deficiency (Alpha-1 Proteinase Inhibitor Deficiency) is the emphysema cause, usually affects mostly people under 40 years.

Cause of Emphysema : Destructive Proteins

Researchers suspect as emphysema causes is an imbalance between destructive (Proteases) and protective enzymes (protease inhibitors). In the lungs to be released again proteases from the white blood cells that can destroy the lung structure. Protease inhibitors from the blood normally keep them in check. The most important protease inhibitor is called the a1-proteinase inhibitor (also known a1-antitrypsin).

Chronic inflammation promote the release of Proteasen, cigarette smoke inhibits the action of protease inhibitors. Both factors lead to increased protease activity. As a result, the wall structure of alveoli (Alveolar) is destroyed. The unstable bronchial collapse and those affected have difficulty breathing because the inhaled air trapped in the resulting air spaces remain.

The area for gas exchange is reduced, because from many small vesicles a few large bubbles are formed and leads to pulmonary emphysema. When gas exchange of oxygen is absorbed and released carbon dioxide. The parties must breathe a lot more to absorb enough oxygen.

Over time, increases in pulmonary emphysema, the pressure in the pulmonary circulation. The right ventricle has the blood against the increased pressure in the lungs pumping. As a result of this exposure, the thickened muscle wall of the right ventricle. This work provides the heart no longer accumulates in the blood back into the systemic circulation. This leads to right heart failure (cor pulmonale).