Hemodynamic and respiratory effects of transvenous catheter embolectomy for massive embolism
| Autor: | Lazar J. Greenfield, J.James Zocco, Stephen L. Crute, Joel D. Wilk |
|---|---|
| Rok vydání: | 1977 |
| Předmět: |
medicine.medical_specialty
medicine.medical_treatment Embolectomy Hemodynamics Blood Pressure Catheterization Dogs Embolus Internal medicine medicine Animals business.industry Respiration medicine.disease Pulmonary embolism Oxygen Catheter medicine.anatomical_structure Blood pressure Embolism Cardiology Vascular resistance Surgery Vascular Resistance business Pulmonary Embolism |
| Zdroj: | The Journal of surgical research. 23(6) |
| ISSN: | 0022-4804 |
| Popis: | Persistent pulmonary dysfunction, noted clinically and experimentally following open and transvenous pulmonary embolectomy, was studied in 20 dogs subjected to acute muscle strip embolism to elevate mean pulmonary arterial pressures above 40 mm Hg. Five of twelve control dogs died from embolism within 24 hr. Immediate extraction of the emboli by an improved transvenous catheter techniques was possible in eight animals. In this group, hemodynamics and respiratory gas exchange returned to control levels and continued to improve after 24 hr despite the fact that five dogs had one residual embolus which could not be removed. The explanation for the reversibility of the abnormalities and for further significant decreases in pulmonary arterial pressures and pulmonary vascular resistance after 24 hr remains uncertain but may be related to more expeditious embolectomy by the steerable catheter. Although the time intervals used experimentally between embolism and embolectomy are unrealistic in clinical circumstances, it seems likely that the ability to remove pulmonary emboli rapidly in the critically ill patient will decrease the likelihood of prolonged pulmonary dysfunction following acute thromboembolism. |
| Databáze: | OpenAIRE |
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