Evaluation of a Novel Automated Suturing Technology for Mitral Chordal Implantation: 1-Year Results

Ann Thorac Surg. 2024 Feb;117(2):474-478. doi: 10.1016/j.athoracsur.2023.10.014. Epub 2023 Oct 27.

Abstract

Purpose: A new automated expanded polytetrafluoroethylene (ePTFE) suture placement device and a new customized titanium fastener deployment device were clinically evaluated in open and less-invasive mitral valve repair (MVr).

Description: Twelve patients were monitored for 1 year after undergoing MVr using the study devices. The study end points included surgical outcomes, operative times, valve repair durability, adverse events, and mortality.

Evaluation: Three patients received 1 ePTFE chord using the study technology, and 9 patients received 2 chords. Mitral regurgitation at 30 days was absent in 8 patients, trace in 2, and mild in 2. At the 1-year follow-up, mitral regurgitation was absent in 7 patients, trace in 2, mild in 2, and moderate in 1. There were no replacement chord failures, reoperations, or death.

Conclusions: The initial outcomes of new automated ePTFE suture placement and titanium fastener deployment devices encourage further clinical evaluations.

MeSH terms

  • Chordae Tendineae / surgery
  • Heart Valve Prosthesis Implantation* / adverse effects
  • Humans
  • Mitral Valve / surgery
  • Mitral Valve Insufficiency* / etiology
  • Sutures
  • Titanium
  • Treatment Outcome

Substances

  • Titanium