Pulmonary capillary blood flow during cardiac catheterization
| Autor: | David H. Lewis, Arthur B. DuBois, Håkan Linderholm, Philip Kimbel |
|---|---|
| Rok vydání: | 1962 |
| Předmět: |
Cardiac Catheterization
Reproducibility medicine.medical_specialty Physiology Capillary action business.industry medicine.medical_treatment Hemodynamics Fick method Blood flow Capillaries Physiology (medical) Anesthesia Internal medicine Heart catheterization Cardiology Humans Medicine Plethysmograph business Lung Pressure gradient Cardiac catheterization |
| Zdroj: | Journal of Applied Physiology. 17:135-141 |
| ISSN: | 1522-1601 8750-7587 |
| Popis: | Methods for the measurement of mean and instantaneous pulmonary capillary blood flow by means of a horizontal body plethysmograph have been described. Methods of calibration were described for the determination of the rate with which N2O was taken up by the blood from the recorded plethysmographic pressure. They included a correction factor for leaks, and for changes from mainly adiabatic to more isothermal conditions. Duplicate determinations with the plethysmographic N2O uptake method of mean pulmonary capillary blood flow showed a good reproducibility and comparison with the direct Fick method during cardiac catheterization on six patients did not show any statistically significant difference. Examples illustrating the use of the method for comparison between the pulmonary vascular pressure gradient and the pulmonary capillary pulse flow curves are presented. Submitted on June 26, 1961 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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