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Ann Thorac Surg 2000;70:1046-1048
© 2000 The Society of Thoracic Surgeons

Supplement: cardiothoracic techniques & technologies

An automated interrupted suturing device for coronary artery bypass grafting: automated coronary anastomosis

Hani Shennib, MDa,b, Stephen J. Korkola, MDa, Nicolas Bousette, BSca, Adel Giaid, PhDa

a Center for Innovative Cardiovascular Therapy, Roosevelt and Beth Israel Hospital, New York, New York, USA
b McGill University Health Center, Montreal, Quebec, Canada

Address reprint requests to Dr Shennib, Heart Institute, 1st Ave at 16th St, New York, NY 10003
e-mail: mchs{at}musica.mcgill.ca

Presented at the Sixth Annual Cardiothoracic Techniques and Technologies Meeting 2000, Ft Lauderdale, FL, Jan 27–29, 2000.

Background. The purpose of this study was to have a preliminary assessment of the safety and efficacy of an automated vascular suturing device.

Methods. The device (Heartflo, Perclose/Abbott Labs, Redwood City, CA), which delivers 10 interrupted 7-0 polypropylene sutures between side-to-side arteriotomies, was evaluated in animals (8 Yorkshire pigs).

Results. Tissue edge capture and quality of anastomosis were highly rated. Time of anastomoses averaged 22 minutes. This time was prolonged primarily due to suture management, tying of interrupted sutures, and learning curve effects. Six of the anastomoses were hemostatic and two required an additional stitch each. Angiography and histology of the anastomosis confirmed patency and quality of the anastomosis.

Conclusions. Our preliminary results indicate that the Heartflo automated anastomotic device is safe and effective. Preclinical and clinical studies to validate its acute and long-term effectiveness will commence shortly.




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