[The myocardfunction in chronic obstructive lung diseases with different pathogenesis (author's transl)]

The results of an investigation of the myocardial function are given. Described as contractility, ability of hypertrophy and reagibility in patients with chronic obstructive lung diseases under definate ergometric conditions. The patients are divided in three groups according to the proposition of Dornhorst and Nash: pink puffer or typ A, blue bloater or Typ B and mixing Typ M. Concerning contractility and hypertrophy differences between the groups are apparent significantly. The patients of typ B and M have the highest load by hypertrophy and contractility. The patients of typ A have only a small reserve of load. They are also not well adapted on exercise and have a high risk for cardiac insufficiency.