Significance of brain natriuretic peptide in the differential diagnosis of dyspnea in renal transplant recipients(a retrospective analysis of 25cases)
- VernacularTitle:B型利钠肽在肾移植患者呼吸困难鉴别诊断中的作用(附25例回顾分析)
- Author:
Liping CHEN
;
Xiaolin ZHANG
;
Pengcheng LI
;
Bingyi SHI
- Publication Type:Journal Article
- Keywords:
brain natriuretic peptide;
renal transplantation;
dyspnea
- From:
Medical Journal of Chinese People's Liberation Army
2001;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of brain natriuretic peptide(BNP)in differential diagnosis of dyspnea in renal transplant recipients.Methods A total of 25cases of renal transplant recipients,admitted from Sep.2007to Mar.2010,developing dyspnea were reviewed retrospectively.All the patients accepted ultrasoundcardiogram examination,and serum BNP was determined,at the onset of dyspnea and 48hafter symptomatic treatment.According to the International Expert consensus document on BNP in 2008,the ideal content of serum BNP was less than 100pg/ml,and once the serum BNP exceeded 400pg/ml it was considered to be a premonitory sign of to cardiac insufficiency or excessive volume loading.Based on the results of serum BNP determination,all the patients were divided into two groups.19cases with serum BNP higher than 400pg/ml were referred as the groupⅠ,while 6cases with BNP lower than 400pg/ ml were categorized as the groupⅡ.Results The serum BNP in groupⅠwas considerably elevated reaching 1893.21?350.34pg/ml. Ultrasoundcardiogram results demonstrated impaired heart function with lower left ventricular ejection fraction(LVEF)(42.38%? 6.74%).Among the 19patients with acute heart dysfunction,12were attributed to excessive fluid loading,and in 7cases it was induced by graft dysfunction complicated by severe infection.Dyspnea was ameliorated with decreased serum BNP(305.35?45.21pg/ml)and increased LVEF(55.36%?6.26%)in groupⅠ48hafter treatment for heart failure.Serum BNP in groupⅡwas 78.52?23.26pg/ml,which was much lower than that in groupⅠ.Ultrasoundcardiogram results demonstrated that the patients in groupⅡhad better LVEF (59.72%?4.92%)than that in groupⅠ.Five of the patients in groupⅡhad normal graft renal function but severe pneumonia,and in the remaining one dyspnea was caused by allergic response when anti-lymphocyte antibody was given as an induction therapy against rejection. Symptomatic treatment did not show evident effects on both BNP and LVEF in groupⅡ.Conclusions Fast detection of serum BNP is an effective index of blood volume,beneficial in the differential diagnosis of cardiac or non-cardiac dyspnea,and provides a valuable reference to the blood volume control in patients after renal transplantation.
