Key result
Renal dysfunction in CHF is linked to ~2-fold higher aortic root BNP levels.
Why the study?
Both BNP and renal function are prognostic predictors in CHF patients, but their relationship with CHF severity required evaluation.
Population
366 consecutive patients with CHF
Comparison
eGFR >=60 ml/min (n = 229) vs eGFR <60 ml/min (n = 137)
Design
Observational study
Authors
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Worsening renal function may confound BNP interpretation in heart failure; hypothesis-generating association requires prospective confirmation before guiding therapy.
Observational (n=366)
p-value: p=<0.0001
Tsutamoto et al. (2006) conducted an observational in Congestive heart failure (n=366). Renal dysfunction (eGFR <60 ml/min) vs. eGFR ≥60 ml/min was evaluated on Plasma level of BNP in the aortic root (p=<0.0001). In patients with congestive heart failure, renal dysfunction (eGFR <60 ml/min) was an independent predictor of aortic root plasma BNP levels (p<0.0001), which were approximately two-fold greater.
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