Experimental and clinical monitoring of free jejunal transfers using an implantable ultrasonic Doppler probe.
Postoperative assessment of the continued viability of a "buried" free jejunal transfer remains a difficult problem. The reliability of a 20 MHz pulsed ultrasonic Doppler probe to detect arterial or venous occlusion has been investigated experimentally in isolated vascularised jejunal segments in dogs. Clinically, the probe has been used intraoperatively to confirm normal flow in both the mesenteric artery and mesenteric vein of free jejunal transfers. Continuous recording of the acoustic signal from the probe during closure of the incisions has allowed immediate detection of any adverse effect due to pedicle kinking or excessive skin tension. Sixteen patients undergoing free jejunal transfer have been monitored continuously using the implantable 20 MHz pulsed ultrasonic Doppler probe positioned on the inflow mesenteric artery.
Jones
N F
NF
Division of Plastic and Reconstructive Surgery, University of Pittsburgh, Pennsylvania.
Rocke
A M
AM
Swartz
W M
WM
Klein
A
A
D000818:Animals; D004285:Dogs; D006801:Humans; D007432:Intraoperative Period; D007583:Jejunum / Q000098:blood supply / Q000502:physiology / Q000637:transplantation*; D008638:Mesenteric Arteries / Q000502:physiology; D008642:Mesenteric Veins / Q000502:physiology; D008991:Monitoring, Physiologic / Q000379:methods*; D011182:Postoperative Care / Q000379:methods; D014463:Ultrasonography; D014654:Vascular Patency