The Arterial to End-Expiratory Carbon Dioxide Tension Gradient in Acute Pulmonary Embolism and Other Cardiopulmonary Diseases
| Autor: | R. Rokseth, L. Hatle |
|---|---|
| Rok vydání: | 1974 |
| Předmět: |
Lung Diseases
Pulmonary and Respiratory Medicine Cardiac Catheterization medicine.medical_specialty Heart Diseases Hypertension Pulmonary Myocardial Infarction Critical Care and Intensive Care Medicine Internal medicine Ventilation-Perfusion Ratio medicine Humans cardiovascular diseases Myocardial infarction Bronchitis Cardiopulmonary disease Heart Failure Lung business.industry Respiration Shock Pneumonia Carbon Dioxide Hydrogen-Ion Concentration respiratory system medicine.disease Pulmonary hypertension respiratory tract diseases Pulmonary embolism Oxygen Radiography medicine.anatomical_structure Pulmonary Emphysema Embolism Spirometry Heart failure Shock (circulatory) cardiovascular system Cardiology medicine.symptom Pulmonary Embolism Cardiology and Cardiovascular Medicine business |
| Zdroj: | Chest. 66:352-357 |
| ISSN: | 0012-3692 |
| DOI: | 10.1378/chest.66.4.352 |
| Popis: | The arterial to end-tidal Pco2 gradient was measured in normal subjects and in the following patient groups: acute pulmonary embolism, acute myocardial infarction, left ventricular failure, pneumonia, obstructive lung diseases, primary pulmonary hypertension and shock from various causes. Increased gradients were observed in 24 of 25 patients with moderate or massive embolism, in 7 of 17 with small emboli, in 20 of 34 with chronic lung diseases, in 6 of 14 with shock and in 3 of 24 with left ventricular failure. By measuring in maximal expiration, high gradients in lung embolism were only slightly reduced, but approached zero in obstructive lung diseases or left ventricular failure. The patients with large emboli were thus clearly separated from other groups with acute or chronic ventilation-perfusion disturbances. No conclusive results were obtained in patients in shock. |
| Databáze: | OpenAIRE |
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