title: [Percutaneous coronary intervention in eastern urban China: 2001-2011].
abstract: OBJECTIVE
  We aimed to assess trends in clinical characteristics, treatment, and outcomes for hospitalized patients undergoing percutaneous coronary intervention (PCI) in eastern urban China from 2001 to 2011.
  
  
  METHODS
  We analyzed a Chinese eastern representative sample of hospital admissions for PCI identified in China PEACE-retrospective CathPCI study using a two-stage random sampling design and calculated the weighted data of clinical information in each year.
  
  
  RESULTS
  We included 3 308 admissions for PCI in 29 urban hospitals.Between 2001 and 2011, rates of hospitalizations for PCI increased by 15 fold.Compared with 2001, the patients undergoing PCI were more likely to be female, older than 70 years, and to have history of diabetes, hypertension, dyslipidemia and PCI in 2011.The proportion of trans radial PCIs was increased from 3.5% in 2001 to 72.6% in 2011 (Statistic=-28.95, Ptrend<0.000 1); the proportion of drug eluting stents (DES) among all the implanted stents was increased from 18.2%in 2001 to 98.4% in 2011(Statistic=-40.82, Ptrend<0.000 1), largely due to increased use of domestic DES.Less than 10% of medical records of patients undergoing primary PCI documented door time and balloon time.The median length of stay decreased from 13 days in 2001 to 10 days in 2011 (Statistic=-0.11, Ptrend<0.001). In-hospital mortality did not change significantly, but both any bleeding (Statistic= 2.66, Ptrend< 0.01) and access bleeding were decreased significantly (Statistic= 5.55, Ptrend< 0.000 1).
  
  
  CONCLUSIONS
  During 2001 and 2011 in eastern urban China, there has been a rapid increase in the number and significant change in treatment patterns of PCI.Quality gaps are identified that represent opportunities to improve care.
authors.affiliation: National Clinical Research Center of Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China.
authors.forename: X
authors.initials: X
authors.lastname: Zheng
authors.forename: X K
authors.initials: XK
authors.lastname: Bai
authors.forename: X Q
authors.initials: XQ
authors.lastname: Huo
authors.forename: B
authors.initials: B
authors.lastname: Wang
authors.forename: S M
authors.initials: SM
authors.lastname: Wang
authors.forename: J
authors.initials: J
authors.lastname: Li
authors.forename: X
authors.initials: X
authors.lastname: Li
authors.forename: L X
authors.initials: LX
authors.lastname: Jiang
mesh_terms: D000328:Adult; D002681:China; D054855:Drug-Eluting Stents; D005260:Female; D006470:Hemorrhage; D017052:Hospital Mortality; D006786:Hospitals, Urban; D006801:Humans; D007902:Length of Stay; D008297:Male; D009203:Myocardial Infarction / Q000401:mortality / Q000601:surgery*; D062645:Percutaneous Coronary Intervention; D011897:Random Allocation; D012189:Retrospective Studies; D012307:Risk Factors; D016896:Treatment Outcome; D014505:Urban Population