The relative myocardial blood volume differentiates between hypertensive heart disease and athlete's heart in humans

Indermühle, Andreas; Vogel, Rolf; Meier, Pascal; Wirth, Simone; Stoop, Regula; Mohaupt, Markus G; Seiler, Christian (2006). The relative myocardial blood volume differentiates between hypertensive heart disease and athlete's heart in humans. European Heart Journal, 27(13), pp. 1571-8. Oxford: Oxford University Press 10.1093/eurheartj/ehl024

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AIMS: The adaptation of the myocardial microcirculation in humans to pathologic and physiologic stress has not been examined in vivo so far. We sought to test whether the relative blood volume (rBV) measured by myocardial contrast echocardiography (MCE) can differentiate between left ventricular (LV) hypertrophy (LVH) in hypertensive heart disease and athlete's heart. METHODS AND RESULTS: Four groups were investigated: hypertensive patients with LVH (n = 15), semi-professional triathletes with LVH (n = 15), professional football players (n = 15), and sedentary control individuals without cardiovascular disease (n = 15). MCE was performed at rest and during adenosine-induced hyperaemia. The rBV (mL mL(-1)), its exchange frequency (beta, min(-1)), and myocardial blood flow (mL min(-1) g(-1)) were derived from steady state and refill sequences of ultrasound contrast agent. Hypertensive patients had lower rBV (0.093 +/- 0.013 mL mL(-1)) than triathletes (0.141 +/- 0.012 mL mL(-1), P < 0.001), football players (0.129 +/- 0.014 mL mL(-1), P < 0.001), and sedentary individuals (0.126 +/- 0.018 mL mL(-1), P < 0.001). Conversely, the exchange frequency (beta) was significantly higher in hypertensive patients (11.3 +/- 3.8 min(-1)) than in triathletes (7.4 +/- 1.8 min(-1)), football players (7.7 +/- 2.3 min(-1)), and sedentary individuals (9.0+/-2.5 min(-1)). An rBV below 0.114 mL mL(-1) distinguished hypertensive patients and triathletes with a sensitivity of 93% and a specificity of 100%. CONCLUSION: Pathologic and physiologic LVH were differentiated non-invasively and accurately by rBV, a measure of vascularisation assessed by MCE.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Cardiovascular Disorders (DHGE) > Clinic of Cardiology
04 Faculty of Medicine > Department of Dermatology, Urology, Rheumatology, Nephrology, Osteoporosis (DURN) > Clinic of Nephrology and Hypertension

UniBE Contributor:

Vogel, Rolf; Mohaupt, Markus and Seiler, Christian

ISSN:

0195-668X

ISBN:

16717078

Publisher:

Oxford University Press

Language:

English

Submitter:

Markus Georg Mohaupt

Date Deposited:

04 Oct 2013 14:46

Last Modified:

27 Apr 2018 09:04

Publisher DOI:

10.1093/eurheartj/ehl024

PubMed ID:

16717078

Web of Science ID:

000238537400014

BORIS DOI:

10.7892/boris.19052

URI:

https://boris.unibe.ch/id/eprint/19052 (FactScience: 1420)

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