A Method for Functional Evaluation of External Respiration by Pressure Chamber Recording (Plethysmography)
LEO KANNER ASSOCIATES LOS ALTOS
Pagination or Media Count:
The method of plethysmopneumography is technically simple and safe, allows external respiration to be studied under most physiologic conditions. This method is suitable for examination of children of any age, beginning with first days of life, regardless of the severity of their condition. With a significant temperature difference between plethysmograph and body of patient on the order of 10 deg C, plethysmo-pneumography can be used to obtain a spirographic characteristic of the respiration. There is particular interest in the use of this method for infants with severe pneumonia. The increase in pressure within the lungs resulting from obstruction of the respiratory tract changes the nature of the manometric curve. In these cases, the method allows the increased resistance of the respiratory tract to be estimated. The method is an aid to diagnosis and reflects the changes in the dynamics of the respiratory function.
- Anatomy and Physiology