title: Use of the Heartrail II catheter as a distal stent delivery device; an extended case series.
abstract: OBJECTIVE
  The Terumo Heartrail catheter (Terumo Corp., Tokyo, Japan) allows extra deep catheter intubation of coronary vessels and has been shown to be useful in CTO lesions. The aim of this study is to assess the safety and efficacy of using the Heartrail II catheter as a distal stent delivery system in PCI following failure of conventional techniques.
  
  
  RESULTS
  We prospectively identified cases performed over a 15-month period in which a Heartrail catheter was used to facilitate stent delivery following failure of conventional techniques. Stent delivery using the Heartrail catheter was performed in 35 cases and was successful in 31 cases. Success rates of 100% in grafts, 95% in RCA, 80% in LAD and 60% in circumflex cases were recorded respectively. Successful stent delivery was associated with intubation depth, with 29/29 succeeding when the intubation depth was > 2 cm and failure in 4/5 cases when the intubation depth <or= 2 cm. There were no complications related to deep intubation of the catheter.
  
  
  CONCLUSIONS
  Use of the Heartrail catheter is safe and highly effective for aiding stent delivery across proximal obstructions in both left and right coronary systems. The small number of unsuccessful cases were related to inability of the catheter to traverse stenotic proximal obstructions within 2 cm of the RCA and LCA origins.
authors.affiliation: Manchester Heart Centre, Manchester Royal Infirmary, Manchester, United Kingdom.
authors.forename: Mamas A
authors.initials: MA
authors.lastname: Mamas
authors.forename: Jonas
authors.initials: J
authors.lastname: Eichhöfer
authors.forename: Cara
authors.initials: C
authors.lastname: Hendry
authors.forename: Magdi
authors.initials: M
authors.lastname: El-Omar
authors.forename: Bernard
authors.initials: B
authors.lastname: Clarke
authors.forename: Ludwig
authors.initials: L
authors.lastname: Neyses
authors.forename: Farzin
authors.initials: F
authors.lastname: Fath-Ordoubadi
authors.forename: Doug
authors.initials: D
authors.lastname: Fraser
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015906:Angioplasty, Balloon, Coronary / Q000009:adverse effects / Q000295:instrumentation*; D006328:Cardiac Catheterization / Q000009:adverse effects / Q000295:instrumentation*; D017023:Coronary Angiography; D023921:Coronary Stenosis / Q000000981:diagnostic imaging / Q000628:therapy*; D004867:Equipment Design; D005260:Female; D006083:Graft Occlusion, Vascular / Q000000981:diagnostic imaging / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D015607:Stents; D016896:Treatment Outcome