title: Outcome in the real-world of coronary high-risk intervention with drug-eluting stents (ORCHID) -- a single-center study comparing Cypher sirolimus-eluting with Taxus paclitaxel-eluting stents.
abstract: OBJECTIVE
  We present real world experience from a single center registry comparing the 6-month outcome of percutaneous coronary intervention (PCI) in unselected high-risk individuals using either sirolimus-eluting (SES) or paclitaxel-eluting stents (PES).
  
  
  RESULTS
  We compared clinical outcome at 6 months follow-up in two cohorts of 156 consecutive patients (total n = 312) who underwent SES (June 2002-February 2003) and PES (march 2003-July 2003) implantation. The primary endpoint was a composite of major adverse cardiac events (MACE). Baseline clinical characteristics were well matched. The 6-month target vessel revascularization (TVR) rates were 1.9% (SES) and 2.6% (PES) and MACE rates were similar in the two groups (SES 4.5% vs. PES 3.2%, P = NS). In the PES group, intervention for multivessel disease, bifurcation lesions and in small vessels was more common, and for in-stent restenosis less common, reflecting the impact of drug eluting stents on indications for PCI. The incidence of sub-acute stent thrombosis, related to inadequate antiplatelet therapy in 3 of the 6 cases, was 0.95% with no difference between the two groups.
  
  
  CONCLUSIONS
  This study confirms the safety and efficacy of SES and PES in unselected high risk patients undergoing PCI. Clinical outcomes of both stents are equivalent at 6 months with low rates of MACE and TVR. These data provide important complementary information to forthcoming randomized studies.
authors.affiliation: Department of Cardiology, Wythenshawe Hospital, Manchester M23 9LT, United Kingdom. somnathkumar@hotmail.com
authors.forename: S
authors.initials: S
authors.lastname: Kumar
authors.forename: V
authors.initials: V
authors.lastname: Suresh
authors.forename: B D
authors.initials: BD
authors.lastname: Prendergast
authors.forename: N H
authors.initials: NH
authors.lastname: Brooks
authors.forename: P
authors.initials: P
authors.lastname: Wicks
authors.forename: R D
authors.initials: RD
authors.lastname: Levy
authors.forename: S G
authors.initials: SG
authors.lastname: Ray
authors.forename: D H
authors.initials: DH
authors.lastname: Bennett
authors.forename: H S
authors.initials: HS
authors.lastname: Lee
mesh_terms: D015906:Angioplasty, Balloon, Coronary / Q000009:adverse effects; D019917:Blood Vessel Prosthesis Implantation; D002317:Cardiovascular Agents / Q000627:therapeutic use*; D020099:Coated Materials, Biocompatible / Q000627:therapeutic use*; D003324:Coronary Artery Disease / Q000453:epidemiology* / Q000628:therapy*; D023903:Coronary Restenosis / Q000517:prevention & control; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use*; D015994:Incidence; D008297:Male; D008875:Middle Aged; D017239:Paclitaxel / Q000627:therapeutic use*; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology; D011446:Prospective Studies; D012042:Registries; D012307:Risk Factors; D020123:Sirolimus / Q000627:therapeutic use*; D015607:Stents / Q000009:adverse effects; D020946:Taxus; D016896:Treatment Outcome
chemical_list: D002317:Cardiovascular Agents; D020099:Coated Materials, Biocompatible; D007166:Immunosuppressive Agents; D017239:Paclitaxel; D020123:Sirolimus