Cardiovascular disease (CVD) is a major concern in public health in China. Relatively limited
information is available about how evidence-based therapies are incorporated appropriately
into routine clinical practice. In addition, little information is available about the
practical and applied knowledge from large unselected population and is used to guide
practice for quality improvement.
To investigate the treatment pattern and outcomes of PCI in a real-world clinical setting,
3007 consecutive PCI cases will be selected from January 1, 2010 to October 31, 2014, in a
large-scale hospital in Northeast China.At first, the investigators identified all PCI
patients from PACS (Picture Archiving and Communication Systems) of the interventional
imaging data from January 1, 2010 to October 31, 2014 and assigned each case a unique study
ID. Then, the investigators abstracted comprehensive clinical data and procedural data.
Comprehensive clinical data came from electronic medical records, including patient
demographic characteristics, past cardiac and noncardiac history, patient clinical
characteristics on hospital admission, laboratory measurements, procedure-related
complications and use of cardiac medications during the index hospitalization and at
discharge. CAG imaging will be reviewed by 2 cardiologists through PACS. Other Procedural
data, including stent type, total stent length and so on, came from operation records of PCI
cases finished by operators. The first clinical follow-up was assessed in October 2015 by
direct hospital visits or phone interviews of patient's general practitioner/cardiologist,
patient himself, or his family for all cases. A secondary clinical follow-up will be assessed
individually if the three-year-follow-up of the patient was available. A third clinical
follow-up will be assessed individually if the five-year-follow-up of the patient was
available. All events were obtained from the patients' medical records. If these data were
unavailable, status was ascertained by a telephone call to the patient's referring hospital
physician. All events were adjudicated and classified by 2 cardiologists. By characterizing
differences in patients' features, comparing the use of medications and procedures, and
examining the outcomes, we'll define the gaps between clinical practice and guidelines to
evaluated the treatment pattern and outcomes. New knowledge will be generated about PCI
management to provide evidence for clinical guidelines, and to improve patients prognosis in
future finally.
