Abstract:
:The effect of enalapril on cerebral blood flow (CBF) was studied in 11 patients with chronic heart failure (NYHA II or III, dilated cardiomyopathy in 6 and old myocardial infarction in 5). CBF was evaluated by analyzing the Patlak-Plot curve obtained from radionuclide angiography with technetium-99m hexamethylpropylene amine oxime (99mTC-HM-PAO). Cardiac index (CI) and stroke volume (SV) were simultaneously measured by impedance cardiography. These measurements were performed before and at four weeks after daily administration of 5 mg enalapril. The stroke volume, cardiac index, and heart rate were not significantly changed after four weeks of enalapril administration. However, CBF was increased by 6.5% from 36.72 +/- 4.66 to 39.13 +/- 5.65 mL/100g/min (P < 0.05). These results suggest that enalapril increased cerebral blood flow, which was not related to increased cardiac output in congestive heart failure. Patlak-Plot analysis of radionuclide angiography using 99mTC-HM-PAO may be available for quantitative assessment of brain perfusion.
journal_name
Angiologyjournal_title
Angiologyauthors
Kamishirado H,Inoue T,Fujito T,Kase M,Shimizu M,Sakai Y,Takayanagi K,Morooka S,Natsui Sdoi
10.1177/000331979704800806subject
Has Abstractpub_date
1997-08-01 00:00:00pages
707-13issue
8eissn
0003-3197issn
1940-1574journal_volume
48pub_type
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