Innovative Mitral Valve Repair Using a Novel Automated Suturing System: Preliminary Data

Area of Science:

• Cardiovascular Surgery
• Medical Device Technology

Background:

• Mitral regurgitation is a prevalent valvular heart disease necessitating surgical intervention.
• Current mitral valve repair techniques can be technically demanding, involving subjective elements and extended learning curves.

Purpose of the Study:

• To evaluate the feasibility and time efficiency of an automated suturing device for a simplified mitral valve repair technique.
• To assess the potential of the "Roman Arch" technique, facilitated by automated suturing, to reduce surgical complexity.

Main Methods:

• The MiStitch™ and MiKnot™ automated suturing devices were utilized in a cadaver model for mitral valve repair.
• Three surgeons with varying experience levels performed the modified "Roman Arch" repair on ten human heart specimens.
• Procedure and suture placement times were meticulously recorded and analyzed.

Main Results:

• The modified "Roman Arch" repair was successfully completed on all specimens.
• Average total repair time was 3:01 ± 00:59 minutes, with a trend towards decreased times correlating with increased surgeon experience.
• Technical feasibility was confirmed, with 90% of attempts rated as satisfactory or very satisfactory.

Conclusions:

• The MiStitch™ system effectively facilitated the modified "Roman Arch" mitral valve repair in an ex vivo setting.
• The findings suggest that this automated approach may decrease the technical complexity associated with mitral valve repairs.
• Further clinical investigations are warranted to validate the efficacy and safety of this technique in practice.