Tips and tricks for antegrade recanalization of chronic total occlusions using the cross boss catheter

Tak W. Kwan, Ravi Diwan, Justin A. Ratcliffe, Yili Huang, Rahul Patri, David James, Michael Liou, Arzhang Fallahi, Bruce Young, Aravinda Nanjundappa, Ramesh Daggubati

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


OBJECTIVES: To provide new strategies and techniques for the successful recanalization of chronic total occlusions (CTOs) with the sole use of the CrossBoss catheter. In addition, some common CTO scenarios are illustrated in detail. BACKGROUND: CTOs are one of the most challenging complex coronary lesion subsets to intervene upon. Even with the innovation of specialized catheters, the success rate of antegrade recanalization remains low. METHODS: Between June and December 2013, a retrospective analysis of 50 consecutive patients who presented with a planned percutaneous intervention (PCI) of a CTO was performed. In all patients, the CrossBoss catheter was used. No additional reentry devices were necessary. Procedural success was defined as <20% residual stenosis and TIMI-3 distal blood flow of the treated vessel at the end of the procedure. RESULTS: The majority of the patients were male (72%), with an average age of 68 years. Thirty percent of patients presented with prior CTO-PCI failure. The average fluoroscopy time was 45.9 minutes and the average amount of contrast use was 273.8 mL. No patient suffered a coronary perforation from the CrossBoss catheter. CONCLUSIONS: With increased experience using the CrossBoss catheter, the antegrade success rate of CTOs can be improved. Some tips include identifying the likely course of the artery with the aid of retrograde injection, proper guidewire selection and manipulation, and redirecting the CrossBoss catheter if there is substantial deviation from the original path.

Original languageEnglish
Pages (from-to)E18-E24
JournalJournal of Invasive Cardiology
Issue number2
StatePublished - 1 Feb 2015
Externally publishedYes


  • ST elevation
  • acute coronary syndrome
  • coronary dissection
  • drug-eluting stent
  • management


Dive into the research topics of 'Tips and tricks for antegrade recanalization of chronic total occlusions using the cross boss catheter'. Together they form a unique fingerprint.

Cite this