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Biological Research For Nursing
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The Natriuretic Peptides: Physiology and Role in Left-Ventricular Dysfunction

Shann D. Kim, RN, PhD

Mariann R. Piano, RN, PhD

Department of Medical-Surgical Nursing, University of Illinois at Chicago.

The natriuretic peptides (NPs), atrial natriuretic peptide, and brain natriuretic peptide (BNP) have been shown to have important roles in fluid volume homeostasis and blood pressure regulation. In addition, plasma NP levels are elevated in a number of cardiac pathologies and have been used as biochemical markers of left-ventricular dysfunction (LVD) in small-and large-scale clinical studies. In this review, the authors describe NP physiology and summarize the findings of selected studies that have examined the reliability and feasibility of NP measurement in LVD. In particular, BNP is proposed to be a biochemical marker that may provide a useful and inexpensive screening test of LVD. In addition, the authors discuss possible roles of the NPs in the etiology and progression of LVD. The findings of these studies suggest that the NPs may directly contribute to cardiac pathophysiology and LVD progression.

Key Words: Atrial natriuretic peptide • brain natriuretic peptide • left-ventricular dysfunction • biochemical marker • cardiac disease

Biological Research For Nursing, Vol. 2, No. 1, 15-29 (2000)
DOI: 10.1177/109980040000200103
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