» Articles » PMID: 27096522

Effect of Nebivolol on MIBG Parameters and Exercise in Heart Failure with Normal Ejection Fraction

Abstract

Background: More than 50% of the patients with heart failure have normal ejection fraction (HFNEF). Iodine-123 metaiodobenzylguanidine (123I-MIBG) scintigraphy and cardiopulmonary exercise test (CPET) are prognostic markers in HFNEF. Nebivolol is a beta-blocker with vasodilating properties.

Objectives: To evaluate the impact of nebivolol therapy on CPET and123I-MIBG scintigraphic parameters in patients with HFNEF.

Methods: Twenty-five patients underwent 123I-MIBG scintigraphy to determine the washout rate and early and late heart-to-mediastinum ratios. During the CPET, we analyzed the systolic blood pressure (SBP) response, heart rate (HR) during effort and recovery (HRR), and oxygen uptake (VO2). After the initial evaluation, we divided our cohort into control and intervention groups. We then started nebivolol and repeated the tests after 3 months.

Results: After treatment, the intervention group showed improvement in rest SBP (149 mmHg [143.5-171 mmHg] versus 135 mmHg [125-151 mmHg, p = 0.016]), rest HR (78 bpm [65.5-84 bpm] versus 64.5 bpm [57.5-75.5 bpm, p = 0.028]), peak SBP (235 mmHg [216.5-249 mmHg] versus 198 mmHg [191-220.5 mmHg], p = 0.001), peak HR (124.5 bpm [115-142 bpm] versus 115 bpm [103.7-124 bpm], p= 0.043), HRR on the 1st minute (6.5 bpm [4.75-12.75 bpm] versus 14.5 bpm [6.7-22 bpm], p = 0.025) and HRR on the 2nd minute (15.5 bpm [13-21.75 bpm] versus 23.5 bpm [16-31.7 bpm], p = 0.005), but no change in peak VO2 and 123I-MIBG scintigraphic parameters.

Conclusion: Despite a better control in SBP, HR during rest and exercise, and improvement in HRR, nebivolol failed to show a positive effect on peak VO2 and 123I-MIBG scintigraphic parameters. The lack of effect on adrenergic activity may be the cause of the lack of effect on functional capacity.

Citing Articles

Beta-blockers and inhibitors of the renin-angiotensin aldosterone system for chronic heart failure with preserved ejection fraction.

Martin N, Manoharan K, Davies C, Lumbers R Cochrane Database Syst Rev. 2021; 5:CD012721.

PMID: 34022072 PMC: 8140651. DOI: 10.1002/14651858.CD012721.pub3.


Beta-blockers and inhibitors of the renin-angiotensin aldosterone system for chronic heart failure with preserved ejection fraction.

Martin N, Manoharan K, Thomas J, Davies C, Lumbers R Cochrane Database Syst Rev. 2018; 6:CD012721.

PMID: 29952095 PMC: 6513293. DOI: 10.1002/14651858.CD012721.pub2.

References
1.
Treglia G, Stefanelli A, Bruno I, Giordano A . Clinical usefulness of myocardial innervation imaging using Iodine-123-meta-iodobenzylguanidine scintigraphy in evaluating the effectiveness of pharmacological treatments in patients with heart failure: an overview. Eur Rev Med Pharmacol Sci. 2013; 17(1):56-68. View

2.
Wessler B, Udelson J . Neuronal dysfunction and medical therapy in heart failure: can an imaging biomarker help to "personalize" therapy?. J Nucl Med. 2015; 56 Suppl 4:20S-24S. DOI: 10.2967/jnumed.114.142778. View

3.
Del Sindaco D, Tinti M, Monzo L, Pulignano G . Clinical and economic aspects of the use of nebivolol in the treatment of elderly patients with heart failure. Clin Interv Aging. 2010; 5:381-93. PMC: 2998246. DOI: 10.2147/CIA.S4482. View

4.
McMurray J, Adamopoulos S, Anker S, Auricchio A, Bohm M, Dickstein K . ESC guidelines for the diagnosis and treatment of acute and chronic heart failure 2012: The Task Force for the Diagnosis and Treatment of Acute and Chronic Heart Failure 2012 of the European Society of Cardiology. Developed in collaboration with the.... Eur J Heart Fail. 2012; 14(8):803-69. DOI: 10.1093/eurjhf/hfs105. View

5.
Kindermann M, Reil J, Pieske B, Van Veldhuisen D, Bohm M . Heart failure with normal left ventricular ejection fraction: what is the evidence?. Trends Cardiovasc Med. 2009; 18(8):280-92. DOI: 10.1016/j.tcm.2008.12.003. View