title: Temporal Trends in Strut-Level Optical Coherence Tomography Evaluation of Coronary Stent Coverage: A Systematic Review and Meta-Analysis.
abstract: OBJECTIVE
  We sought to pool data from all studies with reported strut-level data in human subjects evaluated by optical coherence tomography (OCT) surveillance and to compare the aggregate data of stent strut coverage on a longitudinal temporal timeline from initial implantation for different coronary stent subtypes.
  
  
  BACKGROUND
  Delayed strut coverage following drug-eluting stent (DES) implantation is an important contributor to late stent thrombosis (LST). OCT can detect stent strut coverage.
  
  
  METHODS
  We conducted a systematic search of published or presented studies reporting OCT stent strut coverage of bare-metal stents (BMS) and DES in PubMed, Embase, Web of Science, and the Cochrane Central Register of Controlled Trials to June 2014. Data from 3,515 patients with strut-level data on 731,761 struts were analyzed.
  
  
  RESULTS
  The temporal kinetics of strut coverage differed according to stent type. The rate of strut coverage, reflected by the calculated regression coefficient, was found to be the highest in BMS, followed by early generation zotarolimus-eluting stent, everolimus-eluting stent, newer-generation zotarolimus-eluting stent, paclitaxel-eluting stent, and sirolimus-eluting stent (p < 0.0001).
  
  
  CONCLUSIONS
  Aggregate rates of stent strut coverage assessed by OCT surveillance differed according to stent type. The clinical implications of these differences require further study but may underlie the differences in rates of stent thrombosis observed in clinical trials with different stent types. © 2015 Wiley Periodicals, Inc.
authors.affiliation: University of Arizona, Tucson, Arizona.
authors.forename: Kwan S
authors.initials: KS
authors.lastname: Lee
authors.affiliation: University of Arizona, Tucson, Arizona.
authors.forename: Justin Z
authors.initials: JZ
authors.lastname: Lee
authors.affiliation: University of Arizona, Tucson, Arizona.
authors.forename: Chiu-Hsieh
authors.initials: CH
authors.lastname: Hsu
authors.affiliation: University of Arizona, Tucson, Arizona.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Husnain
authors.affiliation: Cleveland Clinic, Cleveland, Ohio.
authors.forename: Haris
authors.initials: H
authors.lastname: Riaz
authors.affiliation: University of Arizona, Tucson, Arizona.
authors.forename: Irbaz Bin
authors.initials: IB
authors.lastname: Riaz
authors.affiliation: University of Arizona, Tucson, Arizona.
authors.forename: Hoang
authors.initials: H
authors.lastname: Thai
authors.affiliation: Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Cassese
authors.affiliation: Emory University, Atlanta, Georgia.
authors.forename: Aloke
authors.initials: A
authors.lastname: Finn
authors.affiliation: Emory University, Atlanta, Georgia.
authors.forename: Habib
authors.initials: H
authors.lastname: Samady
authors.affiliation: Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.
authors.forename: Robert A
authors.initials: RA
authors.lastname: Byrne
mesh_terms: D003328:Coronary Thrombosis / Q000000981:diagnostic imaging* / Q000209:etiology; D003331:Coronary Vessels / Q000000981:diagnostic imaging*; D054855:Drug-Eluting Stents; D006801:Humans; D008670:Metals; D062645:Percutaneous Coronary Intervention / Q000009:adverse effects / Q000295:instrumentation*; D011237:Predictive Value of Tests; D011474:Prosthesis Design; D012307:Risk Factors; D015607:Stents; D013997:Time Factors; D041623:Tomography, Optical Coherence; D016896:Treatment Outcome
chemical_list: D008670:Metals
keywords: coronary disease; meta-analysis; stents