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Ann Thorac Surg 2006;82:1489-1493
© 2006 The Society of Thoracic Surgeons

New Technology

Development of a Novel Temporary Epicardial Pacing Wire With Biodegradable Film

Yuji Narita, MD, PhDa,b,*, Yukako Fukuhira, MSd, Hideaki Kagami, DDS, PhDa, Eiichi Kitazono, MSd, Hiroaki Kaneko, PhDd, Yoshihiko Sumi, PhDd, Akihiko Usui, MD, PhDa, Minoru Ueda, DDS, PhDc, Yuichi Ueda, MD, PhDa

a Department of Tissue Engineering, Nagoya University School of Medicine, Nagoya, Japan
b Department of Cardiothoracic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
c Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
d Department of Tissue Engineering Development, Innovation Research Institute, Teijin Limited, Tokyo, Japan

Accepted for publication April 13, 2006.

* Address correspondence to Dr Narita, Department of Cardiothoracic Surgery, Nagoya University Graduate School of Medicine in 65, Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan (Email: ynarita{at}med.nagoya-u.ac.jp).

PURPOSE: A temporary epicardial pacing wire (TEPW) has been routinely placed in patients undergoing cardiac surgery. However, its fixation or removal occasionally causes troublesome complications. The aim of this study is to develop a novel TEPW using biodegradable film to fix the electrode to the epicardium without needle stabbing.

DESCRIPTION: A biodegradable film was prepared with poly(L-lactide-co-{epsilon}-caprolactone). The film has a honeycomb-patterned structure that serves as a temporary adhesive for the myocardial surface, and the electrode was incorporated within the film. The novel TEPW was placed on the ventricular epicardium of dogs (group A, n = 5). As a control, conventional TEPW was inserted (group B, n = 6). The pacing threshold, R wave amplitude, impedance, and slew rate were measured at postoperative days 0, 1, 3, 5, 7, and 14, and complications after removal were checked.

EVALUATION: All measurements in both groups were identified and differences were not observed. In addition, the novel TEPWs could be easily removed without related complications.

CONCLUSIONS: This novel TEPW is safe and feasible for postoperative management of cardiac surgeries.


Related Article

Invited commentary
David R. Clarke
Ann. Thorac. Surg. 2006 82: 1493. [Extract] [Full Text] [PDF]



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D. R. Clarke
Invited commentary.
Ann. Thorac. Surg., October 1, 2006; 82(4): 1493 - 1493.
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