Abnormal Myocardial Blood Flow Reserve Observed in Cardiac Amyloidosis
File(s)
Author(s)
Nam, MC
Nel, K
Senior, R
Greaves, K
Type
Journal Article
Abstract
We performed real-time myocardial contrast echocardiography on a patient with cardiac amyloidosis and previous normal coronary angiography presenting with atypical chest pain to assess myocardial blood flow reserve (MBFR). Myocardial contrast echocardiography was performed and flash microbubble destruction and replenishment analysis was used to calculate myocardial blood flow. Dipyridamole was used to achieve hyperemia. MBFR was derived from the ratio of peak myocardial blood flow at hyperemia and rest. The results show a marked reduction in MBFR in our patient. Previous reports of luminal obstruction of intramyocardial rather than epicardial vessels by amyloid deposition may be causing microvascular dysfunction.
Date Issued
2016-03-24
Date Acceptance
2016-02-01
Citation
Journal of Cardiovascular Ultrasound, 2016, 24 (1), pp.64-67
ISSN
1975-4612
Publisher
Korean Society of Echocardiography
Start Page
64
End Page
67
Journal / Book Title
Journal of Cardiovascular Ultrasound
Volume
24
Issue
1
Copyright Statement
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0)
which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
License URL
Subjects
Cardiac amyloidosis
Contrast echocardiography
Echocardiography
Myocardial blood flow
Myocardial blood flow reserve
Publication Status
Published