Monday, December 9, 2019
Health
a to z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
   /   /  Post Comments
 

Pneumoconiosis ( or coal worker’s lung disease)

 
  By : , NJ, USA       16.4.2010         Phone:-          Fax:-          Mail Now
  -
 
 
 

Coal dust is the causative agent for Pneumoconiosis or coal worker’s lung disease. Long term exposure to coal dust causes scarring of the lung tissue. This condition is also called black lung. 



Causes
Inhalation of the coal dust causes irritation of the lung tissue. Dust particles less than 5 microns usually reach the lung tissue. This initiates an inflammatory process in the lung tissue which progresses to scarring and fibrosis. Prolonged exposure leads to heavy scarring of the lung and makes breathing and air exchange difficult.

Symptoms
Beginning stages are asymptomatic but as the disease progresses, patients may experience cough, with black sputum, difficulty in breathing, and recurrent bronchial and pulmonary infection. Chest tightness may also be seen.


Diagnosis
Examination of the chest wall may show barrel chest. Decreased breath sounds will be heard in affected areas, as well as wheezes. Chest x-ray may show nodules 1-5cm, or cavities, irregular opacities, interstitial densities and honey combing. Pulmonary function tests may show decreased vital capacity, decreased total lung capacity, decreased FEV1, and decreased carbon monoxide diffusion. Arterial blood gases may show increased carbon dioxide. 

Treatment
Avoid re-exposure, which will stop progression of disease. Bronchodilators and oxygen therapy may help symptoms. Chest physiotherapy may help clear secretions. 

Prevention
Face mask should be used to prevent dust inhalation. Yearly chest x-ray of workers may help early detection.

Complication
Fibrosis, respiratory failure and right heart failure.



TAGS: Pneumoconiosis,   coal worker’s lung disease,  




DISCLAIMER: The views and opinions expressed in this article are those of the authors /contributors and do not necessarily reflect the official policy/opinion of webindia123.com / Suni systems Pvt. Ltd. Webindia123.com / Suni systems Pvt. Ltd and its staff, affiliates accept no liability whatsoever for any loss or damage of any kind arising out of the use of all or any part of the material published in the site. In case of any queries,or complaints about the authenticity of the articles posted by contributors, please contact us via email.