title: Percutaneous cardiopulmonary support-supported percutaneous coronary intervention: a single center experience.
abstract: OBJECTIVE
  Percutaneous cardiopulmonary support (PCPS) has proven to be a valuable technique in high-risk coronary patients undergoing percutaneous coronary intervention (PCI). However, there have been few studies on PCI associated with PCPS in Korea. We summarized our experience with PCPS-supported PCI.
  
  
  METHODS
  We retrospectively reviewed 19 patients with PCPS-supported PCI between August 2005 and June 2009. PCPS was used as an elective procedure for 10 patients with at least two of the following conditions: left-ventricular ejection fraction <35%, target vessel(s) supplying more than 50% of the viable myocardium, high risk surgical patients, and patients who refused coronary bypass surgery. In the remaining 9 patients PCPS was used as an emergency procedure, to stabilize and even resuscitate patients with acute myocardial infarction and cardiogenic shock, in order to attempt urgent PCI.
  
  
  RESULTS
  Among the 19 patients who were treated with PCPS-supported PCI, 11 (57.9%) survived and 8 (42.1%) patients did not. ST elevation myocardial infarction with cardiogenic shock was more prevalent in the non-survivors than in the survivors (75% vs. 27.3%, p=0.04). The elective PCPS-supported PCI was practiced more frequently in the survivors than in the non-survivors (72.7% vs. 25%, p=0.04). In the analysis of the event-free survival curve between elective and emergency procedures, there was a significant difference in the survival rate (p=0.025). Among the survivors there were more patients with multi-vessel disease, but a lower Thrombolysis in Myocardial Infarction grade in the culprit lesions was detected in the non-survivors, before PCI. Although we studied high-risk patients, there was no procedure-related mortality.
  
  
  CONCLUSIONS
  Our experience suggests that PCPS may be helpful in high risk patients treated with PCI, especially in elective cases. More aggressive and larger scale studies of PCPS should follow.
authors.affiliation: Division of Cardiology, Yonsei Cardiovascular Center, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Sung Soo
authors.initials: SS
authors.lastname: Cho
authors.forename: Chang-Myung
authors.initials: CM
authors.lastname: Oh
authors.forename: Ji-Yong
authors.initials: JY
authors.lastname: Jang
authors.forename: Hee Tae
authors.initials: HT
authors.lastname: Yu
authors.forename: Woo-Dae
authors.initials: WD
authors.lastname: Bang
authors.forename: Jung-Sun
authors.initials: JS
authors.lastname: Kim
authors.forename: Young-Guk
authors.initials: YG
authors.lastname: Ko
authors.forename: Donghoon
authors.initials: D
authors.lastname: Choi
authors.forename: Myeong-Ki
authors.initials: MK
authors.lastname: Hong
authors.forename: Won-Heum
authors.initials: WH
authors.lastname: Shim
authors.forename: Seung-Yun
authors.initials: SY
authors.lastname: Cho
authors.forename: Yangsoo
authors.initials: Y
authors.lastname: Jang