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Cardiovascular diseases are the most common cause of mortality and morbidity in adults worldwide.1 Coronary angiography (CAG) is the gold standard method for evaluating atherosclerotic coronary artery disease (CAD).2 It is conventionally performed via the trans-femoral (TF) route. Recently, however, the trans-radial (TR) route has become the preferred way.3 The TR route offers better procedure comfort, shorter hospitalization […]

Ranolazine preserves and improves left ventricular ejection fraction and autonomic measures when added to guideline-driven therapy in chronic heart failure

Gary L. Murray, Joseph Colombo
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Published Online: Aug 16th 2018 Heart International. 2014;9(2):66-73 DOI: https://doi.org/10.5301/heartint.5000219
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Abstract

Overview

Background. Ranolazine (RAN) reduces cardiac sodium channel 1.5’s late sodium current in congestive heart failure
(CHF), reducing myocardial calcium overload, potentially improving left ventricular (LV) function. RAN blocks neuronal
sodium channel 1.7, potentially altering parasympathetic and sympathetic (P&S) activity. The effects of RAN on
LV ejection fraction (LVEF) and P&S function in CHF were studied.
Methods. Matched CHF patients were given open-label RAN (1000 mg po-bid) added to guideline-driven therapy
(RANCHF, 41 systolic, 13 diastolic) or no adjuvant therapy (control, NORANCHF, 43 systolic, 12 diastolic). Echocardiographic
LVEF and P&S measures were obtained at baseline and follow-up (mean 23.7 months).
Results. LVEF increased in 70% of RANCHF patients, an average of 11.3 units. Mean LVEF remained unchanged
in NORANCHF patients. P&S measures indicated cardiovascular autonomic neuropathy (P≤0.1 bpm2) in 20% of
NORANCHF patients at baseline and in 29% at follow-up (increasing in both groups). At baseline, 28% of patients
had high sympathovagal balance (SB), RAN normalized SB over 50% of these; in contrast, the NORANCHF group
had a 20% increase in patients with high SB.
Conclusions. RAN preserves or improves LVEF and decreases high SB in CHF.

Keywords

Congestive heart failure, Left ventricular ejection fraction, Parasympathetic function, Patient outcomes, Ranolazine, Sympathetic function

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Article Information

Disclosure

Financial support: No grants or funding have been received for this
study.

Correspondence

Gary L. Murray Director, The Heart and Vascular Institute 7205 Wolf River Blvd Germantown TN, 38138, USA drglmurray@hotmail.com

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