Brain Natriuretic Peptide in Term Pregnancy

作者：Yurteri Kaplan Ladin^*; Saber Shelley; Zamudio Stacy; Srinivasan Deepak; Nyirenda Themba; Alvarez Manuel; Al Khan Abdulla

来源：Reproductive Sciences, 2012, 19(5): 520-525.

DOI：10.1177/1933719111426598

• body mass index
• brain natriuretic peptide
• pregnancy

Objective: To determine the normal range of serum brain natriuretic peptide (BNP) in uncomplicated, singleton term pregnant patients. Study Design: Serum for analysis of BNP was drawn at admission to labor and delivery (= 104), prior to administration of intravenous fluid. Results: Median BNP was 20 pg/mL, with an interquartile range of 20 pg/mL (range 5-70 pg/mL; or a mean +/- standard deviation [SD] of 23 +/- 16 pg/mL). Brain natriuretic peptide negatively correlated with prepregnant (r = -.24, P < .05) and pregnant weight (r = -26, P < .01) and with heart rate (r = -.35, P < 0.001); heart rate was also positively correlated with BMI (r = .32). Brain natriuretic peptide levels were higher in Hispanic than African American women, independent of body mass index (BMI) and heart rate. Conclusions: Brain natriuretic peptide values found in term pregnant patients are similar to those of prepregnant women of reproductive age. Brain natriuretic peptide levels appear to be set by conditions present in the prepregnant condition and maintained, despite changes in plasma volume, systemic vascular resistance, and cardiac output.

• 出版日期2012-5