Startseite Time and age dependent decrease of NT-proBNP after septal myectomy in hypertrophic obstructive cardiomyopathy
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Time and age dependent decrease of NT-proBNP after septal myectomy in hypertrophic obstructive cardiomyopathy

  • Hao Cui , Xi Wu , Shuiyun Wang EMAIL logo , Bing Tang , Changsheng Zhu , Haibo Chen , Xiaohui Zhou , Rong Wu , Qinjun Yu und Xiaohong Huang
Veröffentlicht/Copyright: 16. März 2017
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Clinical Chemistry and Laboratory Medicine (CCLM)
Aus der Zeitschrift Clinical Chemistry and Laboratory Medicine (CCLM) Band 55 Heft 10

Abstract

Background:

NT-proBNP level is a predictive factor in hypertrophic cardiomyopathy patients, in which left ventricular outflow tract obstruction contributes to an increased NT-proBNP level. However, studies regarding the influence of septal myectomy on NT-proBNP level in hypertrophic obstructive cardiomyopathy are lacking.

Methods:

One hundred and eighty-two patients who underwent septal myectomy in Fuwai Hospital from May 2011 to March 2016 and were included in the present study. Preoperative and follow-up NT-proBNP was retrospectively collected. Correlation analysis was performed to determine the factors affecting preoperative NT-proBNP and postoperative decrease.

Results:

The cohort had a median age of 46.2 [IQR: 36.5–53.1] years, and 106 (58.2%) patients were male. NT-proBNP decreased to 816.5 [IQR: 400.3–1661.8] pg/mL from preoperative 1732.4 [IQR: 819–3296.5] pg/mL (p<0.001). Baseline NT-proBNP was correlated with gender (p<0.001), maximum septal thickness (p<0.001), and resting pressure gradient (p=0.006). The extent of NT-proBNP decrease was positively correlated with age (p<0.001), baseline NT-proBNP (p<0.001), follow-up time (p=0.020), and enlargement of the ascending aorta (p=0.019). NT-proBNP exhibited a persistent decrease after myectomy.

Conclusions:

Myectomy significantly reduced NT-proBNP level in hypertrophic obstructive cardiomyopathy patients, in which a time-dependent manner of decrease indicated myocardial remodeling of the heart after myectomy.

Keywords: age; hypertrophic cardiomyopathy; myectomy; N-terminal pro-B-type natriuretic peptide (NT-proBNP); remodeling
Corresponding author: Shuiyun Wang, MD, Department of Cardiac Surgery, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing 100037, P.R. China, Phone: +86-10-88396636, Fax: +86-10-68330739
aHao Cui and Xi Wu authors contributed equally to this work.

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This work was supported by National Natural Science Foundation of China (grant number 81570276), Beijing Science and Technology Program (grant number Z161100000516154), and Innovation Foundation for Students, Peking Union Medical College (grant number 2015-1002-02-19).

  3. Employment or leadership: None declared.

  4. Honorarium: None declared.

  5. Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.

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Supplemental Material:

The online version of this article (DOI: https://doi.org/10.1515/cclm-2016-1047) offers supplementary material, available to authorized users.

Received: 2016-11-15
Accepted: 2017-2-6
Published Online: 2017-3-16
Published in Print: 2017-8-28

©2017 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/cclm-2016-1047
Schlagwörter für diesen Artikel
age; hypertrophic cardiomyopathy; myectomy; N-terminal pro-B-type natriuretic peptide (NT-proBNP); remodeling

Artikel in diesem Heft

  1. Frontmatter
  2. Editorials
  3. Reporting LDL-cholesterol levels in the era of intensive lipid management: a clarion call
  4. The challenges of genetic risk scores for the prediction of coronary heart disease
  5. Reviews
  6. Advanced lipoprotein testing for cardiovascular diseases risk assessment: a review of the novel approaches in lipoprotein profiling
  7. A review of the challenge in measuring and standardizing BCR-ABL1
  8. Mini Review
  9. Challenges in the analysis of epigenetic biomarkers in clinical samples
  10. Opinion Paper
  11. Defining a roadmap for harmonizing quality indicators in Laboratory Medicine: a consensus statement on behalf of the IFCC Working Group “Laboratory Error and Patient Safety” and EFLM Task and Finish Group “Performance specifications for the extra-analytical phases”
  12. Genetics and Molecular Diagnostics
  13. Assessment of EGFR mutation status using cell-free DNA from bronchoalveolar lavage fluid
  14. General Clinical Chemistry and Laboratory Medicine
  15. A survey of patients’ views from eight European countries of interpretive support from Specialists in Laboratory Medicine
  16. Verification of examination procedures in clinical laboratory for imprecision, trueness and diagnostic accuracy according to ISO 15189:2012: a pragmatic approach
  17. Expressing analytical performance from multi-sample evaluation in laboratory EQA
  18. A candidate reference method for serum potassium measurement by inductively coupled plasma mass spectrometry
  19. Practical motives are prominent in test-ordering in the Emergency Department
  20. Technical and clinical validation of the Greiner FC-Mix glycaemia tube
  21. Comparison of pneumatic tube system with manual transport for routine chemistry, hematology, coagulation and blood gas tests
  22. Accuracy of cerebrospinal fluid Aβ1-42 measurements: evaluation of pre-analytical factors using a novel Elecsys immunosassay
  23. Evaluation of cannabinoids concentration and stability in standardized preparations of cannabis tea and cannabis oil by ultra-high performance liquid chromatography tandem mass spectrometry
  24. Analytical performance and diagnostic accuracy of six different faecal calprotectin assays in inflammatory bowel disease
  25. Novel immunoassays for detection of CUZD1 autoantibodies in serum of patients with inflammatory bowel diseases
  26. Hematology and Coagulation
  27. Critical appraisal of discriminant formulas for distinguishing thalassemia from iron deficiency in patients with microcytic anemia
  28. Reference Values and Biological Variations
  29. Reference ranges of thromboelastometry in healthy full-term and pre-term neonates
  30. Cancer Diagnostics
  31. Immunoparesis in IgM gammopathies as a useful biomarker to predict disease progression
  32. Cardiovascular Diseases
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  45. Mass spectrometry vs. immunoassay in clinical and forensic toxicology: qui modus in rebus est?
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