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• Book

  Paul and Juhl's essentials of radiologic imaging. 7th ed.

  edited by John H. Juhl, Andrew B. Crummy, and Janet E. Kuhlman ; with 26 contributors.

  Digital Access Ovid 1998

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  Books: General Collection (Downstairs)

  c1998

  RC78 .P3 1998

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• Article

  Cardiac work demands and left ventricular function in end-stage renal disease.

  Capelli JP, Kasparian H.

  Ann Intern Med. 1977 Mar;86(3):261-7.

  Cardiac hemodynamics were assessed by right and left heart catheterizations in nine patients on hemodialysis. Results showed increased stroke work index and left ventricular work indices. Left ventricular end-diastolic pressure was elevated in all patients (markedly so in five) and did not fall with occlusion of arteriovenous communications. Cardiac output was significantly elevated, but fell to normal postocclusion. Myocardial oxygen consumption, indirectly assessed by tension time and pressure rate indices, appeared increased. Six patients died: four from complications attributed to myocardial failure without infarction, one from transplant-related complications, and one from bacterial meningitis. Five had increased cardiac weights at autopsy, but none showed infarction. This study suggests that increased cardiac work is present in chronic renal failure. Myocardial mass increases result in increased myocardial oxygen demand; however, the increased oxygen requirements may not be met because of reduced erythrocyte mass. Persistance of pressure-volume overload and severe anemia are conducive to myocardial failure.

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