title: [Effects of Qili Qiangxin capsules on NT-proBNP level and cardiac function in silicosis patients].
abstract: OBJECTIVE
  To investigate the effects of Qili Qiangxin capsules on the amino-terminal pro-brain natriuretic peptide (NT-proBNP) level and cardiac function in patients with silicosis.
  
  
  METHODS
  Hospitalized silicosis patients with heart failure were divided into treatment group (41 cases) and control group (30 cases) according to their own will. Both groups received comprehensive symptomatic treatment; in addition, the treatment group received Qili Qiangxin capsules. The treatment lasted 6 months. The observed items included NT-proBNP level, 6-minute walk test, ultrasonic cardiogram, and NYHA classification before and after treatment.
  
  
  RESULTS
  According to NYHA classification, the response rate was 29.27%in the treatment group and 10.00%in the control group; there was a significant difference between the two groups (P < 0.05). The average walk distance in the treatment group was increased from 150.96±73.12 m before treatment to 169.32±77.04 m after treatment, and the improvement was statistically significant (P < 0.05). The average NT-proBNP level in the treatment group was reduced from 1154.44 ± 480.79 ng/L before treatment to 494.49 ± 342.61 ng/L after treatment, and the reduction was statistically significant (P < 0.01). Left ventricular ejection fraction was significantly improved in the treatment group (P < 0.05).
  
  
  CONCLUSIONS
  Qili Qiangxin capsules in addition to comprehensive symptomatic treatment can significantly reduce NT-proBNP level and improve cardiac function in silicosis patients, and thereby improve patients' quality of life.
authors.affiliation: Department of Occupational Medicine, Shicheng Affiliated Hospital of Municipal Hospital (Formerly Tongling Youse Institute for Occupational Disease Research), Tongling, Anhui Province 244000, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Tong
authors.forename: Runping
authors.initials: R
authors.lastname: Lu
authors.forename: Yongjun
authors.initials: Y
authors.lastname: Wan
authors.forename: Haijun
authors.initials: H
authors.lastname: Yang
authors.forename: Tiesong
authors.initials: T
authors.lastname: Cao
authors.forename: Shengbing
authors.initials: S
authors.lastname: Zhu
authors.forename: Kui
authors.initials: K
authors.lastname: Liu
authors.forename: Jianqiu
authors.initials: J
authors.lastname: Ding
authors.forename: Gengming
authors.initials: G
authors.lastname: Ding
mesh_terms: D002214:Capsules; D004365:Drugs, Chinese Herbal / Q000494:pharmacology*; D004452:Echocardiography; D006333:Heart Failure / Q000503:physiopathology; D006801:Humans; D020097:Natriuretic Peptide, Brain / Q000187:drug effects* / Q000378:metabolism; D010446:Peptide Fragments / Q000187:drug effects* / Q000378:metabolism; D011788:Quality of Life; D012829:Silicosis / Q000188:drug therapy* / Q000503:physiopathology
chemical_list: D002214:Capsules; D004365:Drugs, Chinese Herbal; D010446:Peptide Fragments; C109794:pro-brain natriuretic peptide (1-76); C530394:qiangxin; D020097:Natriuretic Peptide, Brain