Multigated radionuclide study of the total artificial heart
| Autor: | DeVries Wc, W. L. Hastings, Frederick L. Datz, Paul E. Christian, Andrew Taylor |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
Male
Resuscitation medicine.medical_specialty animal structures Cardiomyopathy Heart Artificial law.invention Right ventricular ejection fraction law Artificial heart Internal medicine Preoperative Care medicine Humans Radiology Nuclear Medicine and imaging Angiocardiography Postoperative Period Radionuclide Imaging Ejection fraction medicine.diagnostic_test business.industry Heart Stroke Volume General Medicine Middle Aged medicine.disease Diaphragm (structural system) medicine.anatomical_structure Ventricle cardiovascular system Cardiology business Nuclear medicine |
| Zdroj: | European journal of nuclear medicine. 13(4) |
| ISSN: | 0340-6997 |
| Popis: | A permanent total artificial heart, the Jarvik-7, was implanted into a 61-year-old male with a severe cardiomyopathy. Gated radionuclide studies were performed in the patient both prior to surgery and following implantation. Preoperative gated radionuclide cardiac studies revealed marked left ventricular enlargement, severe hypokinesis and a left ventricular ejection fraction of 10%. The right ventricle was moderately enlarged with a 27% ejection fraction. Following implantation of the Jarvik-7 artificial heart, gated cardiac studies were performed with a computer gated by a signal from the heart controller. The left ventricular ejection fraction was 69% and the right ventricular ejection fraction was 62%. This compared to a theoretical ejection fraction of 74% for each ventricle based on chamber anatomy. There was excellent ventricular emptying. Phase analysis showed uniform diaphragm motion. The use of gated cardiac studies in humans may prove helpful in evaluating mechanical problems with the artificial heart, such as malfunction of the diaphragm, before they become clinically apparent. |
| Databáze: | OpenAIRE |
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