Coronary sinus anatomical features: Description and procedural implications during coronary sinus Reducer implantation

Adriaan Wilgenhof, Carlo Zivelonghi, Stefan Verheye, Paul Vermeersch, Benjamin Scott, Carl Convens, Leo Timmers, Geert Leenders, Jan Peter Van Kuijk, Pieter Stella, Pierfrancesco Agostoni

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

OBJECTIVES: We hypothesized that some coronary sinus (CS) anatomies allow a more straightforward CS Reducer (CSR) implantation.

BACKGROUND: Recent decades have seen a rise in patients with chronic angina. When complete revascularization and maximal medical therapy fail to reduce symptoms, CSR has become a new therapeutic option.

METHODS: We identified a classical C-shape-a near horizontal course of the proximal portion of a circular CS-in a retrospective analysis of 47 CSR implantations and compared the procedural time, fluoroscopic time, contrast use, presence of valves or bifurcations and procedural complications with the non-C-shape CS anatomy.

RESULTS: We found a significant difference in procedural (20.0 [19.0-24.7] min vs. 24.5 [20.7-51.0] min; p = .028 and fluoroscopic time (9.5 [7.5-14.5] min vs. 11.0 [7.9-30.0] min; p = .016). There was no significant difference in contrast use. The presence of bifurcations or valves along the CS course did not influence the procedural timings.

CONCLUSION: This study is the first systematic evaluation of CS anatomy and its procedural implications. We identified a favorable C-shape anatomy which allows for a more straightforward implantation. Operators should be aware of the different implications of CS anatomy, their influence on guiding catheter stability and overall procedure complexity.

Original languageEnglish
Pages (from-to)E929-E935
JournalCatheterization and Cardiovascular Interventions
Volume97
Issue number7
Early online date19 Nov 2020
DOIs
Publication statusPublished - 1 Jun 2021

Keywords

  • angina
  • chronic coronary syndrome
  • coronary sinus reducer
  • interventional cardiology

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