TOTAL ARTIFICIAL HEART IMPLANTATION IN CALVES WITH PUMP OF AN ANGLED PORT DESIGN
| Autor: | G Rosenberg, D. L. Landis, L. J. Shaffer, J. A. Arrowood, Phillips Wm, E. K. Olsen, J. H. Donachy, G. A. Prophet, William S. Pierce |
|---|---|
| Rok vydání: | 1979 |
| Předmět: |
medicine.medical_specialty
Polymers Polyurethanes Biomedical Engineering Biophysics Bioengineering Blood volume Heart Artificial Prosthesis Design law.invention Biomaterials Hemoglobins Postoperative Complications Port (medical) law Artificial heart Internal medicine medicine Animals Sulfones Cardiac Surgical Procedures Postoperative Care Ejection fraction business.industry Central venous pressure General Medicine Stroke volume Surgery Hematocrit Aortic pressure Cardiology Cattle Hemoglobin business |
| Zdroj: | ASAIO Journal. 25:254-259 |
| ISSN: | 1058-2916 |
| DOI: | 10.1097/00002480-197902500-00046 |
| Popis: | The APP was employed in our 21st TAH calf and has now been implanted in a total of 11 animals. The APP has a dynamic stroke volume of 105 ml, an ejection fraction of 75%, and a peak flow of 14 L/min. The TAH features 2 APPs which have polysulfone cases and contain smooth, seam-free polyurethane sacs. Concavoconvex Bjork-Shiley valves are used. The pumps are pneumatically driven but may be easily converted to pusher-plate drive. A pneumatic drive console and an automatic control unit complete the system. The automatic control unit permits independent control of the right and left hearts as a function of left atrial and aortic pressure respectively. The average survival of the APP TAH calves has been 65 days. Hematologic study has revealed basically normal results with minimal elevation of serum hemoglobin and lactic acid dehydrogenase (LDH), indicative of a low level of hemolysis. Elelvation of central venous pressure (CVP) and total blood volume continue to be a problem with some TAH calves but not all. The APP has led to a dramatic increase in duration of survival and decrease in thromboembolism. |
| Databáze: | OpenAIRE |
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