Effect of catheter position on thermodilution cardiac output during continuous positive-pressure ventilation
| Autor: | Anthony L. Malanga, Faysal M. Hasan, William M. Corrao, Sidney S. Braman |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
medicine.medical_specialty
Cardiac output Swine medicine.medical_treatment Thermodilution Left atrium Regional perfusion Pulmonary Artery Critical Care and Intensive Care Medicine Catheterization Intermittent Positive-Pressure Ventilation Positive-Pressure Respiration Internal medicine medicine Animals Cardiac Output Positive pressure ventilation Lung Thermal sensors business.industry Pulmonary artery catheter respiratory system respiratory tract diseases Catheter medicine.anatomical_structure Cardiology business |
| Zdroj: | Critical Care Medicine. 12:387-390 |
| ISSN: | 0090-3493 |
| Popis: | PEEP may decrease regional perfusion to nondependent lung regions, thereby creating different zones of thermal dissipation in dependent and nondependent zones of the lung. Under these conditions, the measurement of cardiac output by thermodilution may, thus, be influenced by the vertical position of the pulmonary artery catheter in the lung. We investigated this hypothesis in 7 healthy, anesthetized pigs by comparing cardiac output measurements from thermistors located in dependent and nondependent lung regions at varying levels of PEEP. Our data from thermistors in these 2 positions were similar, suggesting that the measurement of cardiac output by thermodilution is not influenced by the vertical position of the thermal sensor with respect to the left atrium. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|