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Ann Thorac Surg 1999;67:908-910
© 1999 The Society of Thoracic Surgeons
a Department of Surgery II, Miyazaki Medical College, Miyazaki, Japan
Accepted for publication September 25, 1998.
Address reprint requests to Dr Matsuzaki, Department of Surgery II, Miyazaki Medical College, 5200 Kihara, Kiyotake, Miyazaki, 889-1692, Japan
Background. A prospective study on the vasodilatory effect of prostaglandin E1 on blood flow to the gastric tube after esophagectomy is reported.
Methods. Twelve patients with thoracic esophageal cancer who underwent esophagectomy were enrolled in this study. In all patients, the esophagogastrostomy was performed in the cervical region, and the stomach was used for reconstruction. Immediately after the creation of the gastric tube, baseline blood flow was measured at the oral end, in the center, and at the pyloric ring of the gastric tube using a laser Doppler flowmeter. The prostaglandin E1 group (n = 6) was then infused with prostaglandin E1 until postoperative day 2; the control group (n = 6) received saline. At +5 minutes and +40 minutes after administration, blood flow was again measured at the same three sites.
Results. The control group did not show a significant increase of blood flow to any site over time. For the prostaglandin E1 group, blood flow at +40 minutes increased from the baseline measurements significantly at a rate of 63%, 39%, and 36%, respectively.
Conclusions. Prostaglandin E1 has a characteristic vasodilating effect on the area of impaired microcirculation of the gastric tube, thereby increasing blood flow to the affected area.Key Words: PGE1, esophageal reconstruction, blood flow, gastric tube, Laser Doppler flowmeter
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