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Research Letter
Less Is More
December 2015

Use of Intra-aortic Balloon Pump in a Japanese Multicenter Percutaneous Coronary Intervention Registry

Author Affiliations
  • 1Department of Cardiology, Keio University School of Medicine, Tokyo, Japan
  • 2Department of Health Policy and Management, Keio University School of Medicine, Tokyo, Japan
JAMA Intern Med. 2015;175(12):1980-1982. doi:10.1001/jamainternmed.2015.5119

We read with interest the recent meta-analysis by Ahmad et al,1 demonstrating a negative association between intra-aortic balloon pump (IABP) therapy and mortality among patients experiencing acute myocardial infarction. We agree that efforts are needed to clarify the role of IABP therapy and to examine its effect on care in other regions and countries. In Japan, IABP therapy is frequently used in patients with guideline-based indications and in patients with less established indications, and the judicious use of invasive procedures has been highlighted.2,3 Our objective herein was to investigate the prognostic effect of IABP use in patients undergoing percutaneous coronary intervention (PCI) for nonacute and acute indications registered in a contemporary multicenter Japanese PCI registry (Japan Cardiovascular Database-Keio Interhospital Cardiovascular Studies4).