Left vocal cord paralysis caused by coalworkers' pneumoconiosis and progressive massive fibrosis.

Vocal cord paralysis associated with coalworkers' pneumoconiosis and progressive massive fibrosis.

Right ventricular hypertrophy in a group of coalworkers.

The prevalence of right ventricular hypertrophy was studied in necropsy material from 215 coalworkers, a group which consisted of 115 men with simple or no pneumoconiosis and 100 with progressive massive fibrosis. Right ventricular hypertrophy was considered to be present if the ratio of the weight of the left ventricle plus septum to that of the right ventricle was less than 2:1. The prevalenc...

Evolution of disability in coalworkers' pneumoconiosis.

Retrospective analysis of the results of serial ventilatory capacity tests (FEV 1-0), which had extended over an average period of almost 15 years, has been carried out in 215 miners and ex-miners who suffer with coalworkers' pneumoconiosis. All were unselected previously diagnosed cases who attend the Cardiff Pneumoconiosis Panel at regular intervals for re-assessment examinations. They consis...

Relation between progressive massive fibrosis, emphysema, and pulmonary dysfunction in coalworkers' pneumoconiosis.

The correlations between progressive massive fibrosis (PMF), emphysema, and impairment of ventilation were studied in 108 dead coalminers, all of whom had suffered with complicated coalworkers' pneumoconiosis (radiological category B or C) during life. The findings indicated that both factors were contributing to impairment of ventilation in proportion to their size or extent, but these contrib...

Relationship between type of simple coalworkers' pneumoconiosis and lung function. A nine-year follow-up study of subjects with small rounded opacities.

One hundred and twenty-five men who were identified in 1968 as having the simple pneumoconiosis of coalworkers were re-examined nine years later when their mean age was 59.6 years. On both occasions the lung function and response to exercise were assessed. There was no evidence for progression of simple pneumoconiosis between the surveys, but 14 had developed small irregular opacities on their ...