164 



Scientific Proceedings (127) 



in lungs, (3) increase in amount of lung tissue, including possi- 

 ble intraalveolar and intrapleural exudate and (4) increased size 

 of abdominal organs, causing diminished downward movement 

 of diaphragm. 



TABLE I. 



Observed lung volumes given as relative values based on total capacity. 



-Number of 



Total 



Middle 



Residual 



Vital 





patients. 



capacity. 



capacity. 



air. 



capacity. 



Remarks. 



1 



100 



105 



122 



92 



Patients with incompensated 



2 



100 



99 



143 



85 



heart failure. 



3 



100 



90 



118 



94 





4 



100 



9.5 



145 



85 





5 



100 



87 



146 



84 





6 



100 



142 



156 



81 





7 



100 





215 



62 



Patients with compensated 



8 



100 



103 



170 



77 



heart failure. 



9 



100 



101 



136 



88 





10 



100 



95 



135 



88 





11 



100 



125 



187 



71 





Normal ratio for thorax excursion 74.7. See paper V of this series. 



TABLE II. 



Observed values of different lung volumes in per cent, of normal value. Cal- 

 culated from the size of the chest wall. 



Number of 



Total 



Middle 



Residual 



Vital 



Excursion 





patients. 



capacity. 



capacity. 



air. 



capacity. 



of thorax. 



Remarks. 





per cent. 



per cent. 



per cent. 



per cent. 



o r 





1 



60 



63 



73 



56 



86.4 



Patients with in- 



2 



52 



51 



73 



45 



84.7 



compensated heart 



3 



54 



49 



64 



52 



82.5 



failure. 



4 



78 



78 



112 



67 



83.0 





5 



100 



87 



145 



86 



79.2 





6 



71 



100 



109 



58 



80.3 



Patients with com- 



7 



81 





172 



50.5 



82.0 



pensated heart fail- 



8 



85 



87 



142.5 



65 



81.5 



ure. 



9 



102 



103 



132 



94 



80.9 





10 



107 



102 



142 



96 



84.3 





11 



89 



112 



164 



61 



85.3 





Normal ratio for thorax excursion 74.7. See paper V of this series. 



