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[Cardiac sympathetic nerve activity in ischemic heart failure]
G Richardt1, F Hartmann, C Slotty
1Med. Klinik II Medizinische Universität zu Lübeck.
Zeitschrift Fur Kardiologie
|November 25, 1998
Summary
Prognosis in heart failure is linked to sympatho-adrenergic stimulation. In advanced heart failure, this stimulation is unevenly distributed, suggesting sympatholytic therapies may benefit patients with ischemia-induced heart failure.
Area of Science:
- Cardiology
- Neuroscience
- Pharmacology
Context:
- Prognosis in heart failure (HF) is primarily dictated by sympatho-adrenergic system activity.
- Sympathetic cardiac stimulation precedes systemic activation in HF development.
- Elevated myocardial norepinephrine concentrations result from increased release and reduced neuronal reuptake.
Purpose:
- To investigate the heterogeneity of sympatho-adrenergic effects in the heart during advanced heart failure.
- To explore the parallels between sympathetic neurotransmission in ischemia and heart failure.
Summary:
- Sympathetic stimulation is a key determinant of heart failure prognosis.
- Norepinephrine levels increase in the myocardium due to altered sympathetic nerve activity.
- These effects are heterogeneously distributed in advanced heart failure.
- Experimental data suggest similar effects on sympathetic neurotransmission in ischemia and heart failure.
Impact:
- Findings highlight the potential therapeutic role of sympatholytic interventions in heart failure, particularly in cases involving ischemia.
- Understanding the heterogeneous distribution of sympathetic effects could lead to targeted treatment strategies.