Cardiac natriuretic peptides are related to left ventricular mass and function and predict mortality in dialysis patients.
This study was designed to investigate the relationship among brain natriuretic peptide (BNP) and atrial natriuretic peptide (ANP) and left ventricular mass (LVM), ejection fraction, and LV geometry in a large cohort of dialysis patients without heart failure (n = 246) and to test the prediction power of these peptides for total and cardiovascular mortality. In separate multivariate models of LVM, BNP and ANP were the strongest independent correlates of the LVM index. In these models, the predictive power of BNP was slightly stronger than that of ANP. Both natriuretic peptides also were the strongest independent predictors of ejection fraction, and again BNP was a slightly better predictor of ejection fraction than ANP. In separate multivariate Cox models, the relative risk of death was significantly higher in patients of the third tertile of the distribution of BNP and ANP than in those of the first tertile (BNP, 7.14 [95% confidence interval (CI), 2.83 to 18.01, P = 0.00001]; ANP, 4.22 [95% CI, 1.79 to 9.92, P = 0.001]), and a similar difference was found for cardiovascular death (BNP, 6.72 [95% CI, 2.44 to 18.54, P = 0.0002]; ANP, 3.80 [95% CI, 1.44 to 10.03, P = 0.007]). BNP but not ANP remained as an independent predictor of death in a Cox's model including LVM and ejection fraction. Cardiac natriuretic peptides are linked independently to LVM and function in dialysis patients and predict overall and cardiovascular mortality. The measurement of the plasma concentration of BNP and ANP may be useful for risk stratification in these patients.
Zoccali
Carmine
C
Centro di Fisiologia Clinica del CNR e Divisione di Nefrologia, Reggio Calabria, Italy.
Mallamaci
Francesca
F
Centro di Fisiologia Clinica del CNR e Divisione di Nefrologia, Reggio Calabria, Italy.
Benedetto
Francesco Antonio
FA
Servizio di Cardiologia Ospedale Morelli, Reggio Calabria, Italy.
Tripepi
Giovanni
G
Centro di Fisiologia Clinica del CNR e Divisione di Nefrologia, Reggio Calabria, Italy.
Parlongo
Saverio
S
Centro di Fisiologia Clinica del CNR e Divisione di Nefrologia, Reggio Calabria, Italy.
Cataliotti
Alessandro
A
Istituto di Clinica Medica "L. Condorelli," Università di Catania, Catania, Italy.
Cutrupi
Sebastiano
S
Centro di Fisiologia Clinica del CNR e Divisione di Nefrologia, Reggio Calabria, Italy.
Giacone
Giuseppe
G
Istituto di Clinica Medica "L. Condorelli," Università di Catania, Catania, Italy.
Bellanuova
Ignazio
I
Istituto di Clinica Medica "L. Condorelli," Università di Catania, Catania, Italy.
Cottini
Emilio
E
Istituto di Clinica Medica "L. Condorelli," Università di Catania, Catania, Italy.
Malatino
Lorenzo Salvatore
LS
Istituto di Clinica Medica "L. Condorelli," Università di Catania, Catania, Italy.
D000368:Aged; D009320:Atrial Natriuretic Factor / Q000097:blood; D019208:Brain-Derived Neurotrophic Factor / Q000378:metabolism; D015331:Cohort Studies; D004452:Echocardiography; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000401:mortality* / Q000473:pathology / Q000503:physiopathology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009206:Myocardium / Q000378:metabolism*; D045283:Natriuretic Agents / Q000378:metabolism*; D010531:Peritoneal Dialysis, Continuous Ambulatory; D011379:Prognosis; D016016:Proportional Hazards Models; D006435:Renal Dialysis; D017582:Renal Replacement Therapy; D013318:Stroke Volume; D016277:Ventricular Function, Left
D019208:Brain-Derived Neurotrophic Factor; D045283:Natriuretic Agents; D009320:Atrial Natriuretic Factor