Ann Thorac Surg 1989;48:628-631
© 1989 The Society of Thoracic Surgeons
Articles
Experimental aortocoronary artery bypass grafting using a CO2 laser on the dog: Acute experiment
Seisuke Nakata, MD*,
Charles D. Campbell, MD,
Robert L. Replogle, MD
Division of Cardiac Surgery, Department of Surgery, Michael Reese Hospital and Medical Center, Pritzker School of Medicine, The University of Chicago, Chicago, Illinois USA
Accepted for publication July 9, 1989.
* Address reprint requests to Dr Nakata, The Department of Pediatric Cardiovascular Surgery, The Heart Institute of Japan, Tokyo Womens' Medical College, 8-3 Kawada-cho, Shinjuku, Tokyo 162, Japan.
 |
Abstract
|
|---|
This study was designed to evaluate the feasibility of using laser tissue welding in aortocoronary bypass operation. Simulated aortocoronary bypass operations were performed on 10 dog hearts supported by extracorporeal circulation. Distal anastomoses between internal mammary artery and coronary artery were achieved using the laser technique, which includes four stay sutures of 7-0 polypropylene and tissue welding between the stays by the laser at a power level of 65 mW. Short-term luminal patency was 100% without stenosis by angiography. Microscopy and histology showed that CO2 laser caused medial change resulting in fusion with preservation of normal intimal morphology. The aortocoronary bypass operation using a CO2 laser is technically feasible, and this technique may open up a new method for patients with small peripheral coronary artery obstruction and for pediatric patients with certain conditions (eg, Kawasaki disease).
|
Footnotes
|
|---|
Some of these results were presented at the Motion Picture Session of the Clinical Meeting of the American College of Surgeons, Chicago, IL, Oct 23–28, 1988.
|
References
|
|---|
- Frazier OH, Painvin GA, Morris JR, Thosen S, Neblett CR. Laser-assisted microvascular anastomoses: angiographic and anastomopathologic studies on growing microvascular anastomoses: preliminary report Surgery 1985;97:585-589.[Medline]
- Vale BH, Frenkel A, Trenka-Bethin S, Matlaga BF. Microsurgical anastomosis of rat carotid arteries with the CO2 laser Plast Reconstr Surg 1986;77:759-766.[Medline]
- Freeman RH, Gordon JA, Thomson CB. Microsurgical anastomosis using a CO2 laser: preliminary report [Abstract] Conference on Lasers and Electro-optics. 1982. pp. 60.
- Ruiz-Razura A, Lan M, Cohen BE. The laser assisted end-to-side microvascular anastomosis Plast Reconstr Surg 1989;83:511-517.[Medline]
- Frazier OH, Shehab SA, Radovancevic B, McAllister Jr HA, Parnis SM. Laser-assisted anastomosis of large-diameter vessels with the carbon dioxide laser J Thorac Cardiovasc Surg 1988;96:454-456.[Abstract]
- Nakata S, Pick R, Campbell CD, Replogle RL. End-to-side and end-to-end vascular anastomoses using a CO2 laser J Thorac Cardiovasc Surg 1989;98:57-62.[Abstract]
- White RA. Technical frontiers for the vascular surgeon: laser anastomotic welding and angioscopy-assisted intraluminal instrumentation J Vasc Surg 1987;5:673-680.[Medline]
- Quigley MR, Bailes JE, Kwaan HC, Cerullo LJ, Brown JT, Lustre C. Microvascular anastomosis using the CO2 milliwatt laser Lasers Surg Med 1985;5:357-365.[Medline]
- McCarthy WJ, Hartz RS, Yao JST, Sottiurai VS, Kwaan HC, Michaelis LL. Vascular anastomoses with laser energy J Vasc Surg 1986;3:32-41.[Medline]
Top
Abstract
Footnotes
