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Bipolar electrosurgical sphincterotomy.

R D Tucker1, C E Sievert, C E Platz

  • 1Department of Pathology, University of Iowa Hospitals Clinics, Iowa City 52242.

Gastrointestinal Endoscopy
|March 1, 1992
PubMed
Summary
This summary is machine-generated.

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A new bipolar sphincterotome effectively cuts tissue with lower power than monopolar devices. This innovation in endoscopic retrograde cholangiopancreatography (ERCP) may reduce complications during sphincterotomies.

Area of Science:

  • Gastroenterology
  • Surgical Technology
  • Endoscopy

Background:

  • Sphincterotomy is a key procedure in ERCP.
  • Current monopolar devices carry risks of thermal injury and complications.
  • A novel bipolar sphincterotome was developed to improve safety and efficacy.

Purpose of the Study:

  • To evaluate the performance and safety of a newly developed bipolar sphincterotome.
  • To compare its energy requirements and tissue cutting effectiveness against a traditional monopolar device.
  • To assess potential complications such as stenosis or thermal injury.

Main Methods:

  • Comparative analysis of monopolar and bipolar sphincterotomes in vitro and in vivo.
  • Energy consumption measured in watts for both devices during tissue cutting.

Related Experiment Videos

  • In vivo study involved eight dogs undergoing bipolar sphincterotomy via open surgical access, followed by a 6-week recovery period.
  • Histological examination of excised tissue for thermal injury.

    • Main Results:

    • The bipolar sphincterotome required significantly lower power (17.1 W) compared to the monopolar device (29.2 W; p = 0.005).
    • No evidence of stenosis or common duct dilation was observed in dogs post-procedure.
    • Serum liver enzymes (alkaline phosphatase, bilirubin) remained within normal limits.
    • Histological analysis showed no thermal injury at the return electrode site of the bipolar device.

    Conclusions:

    • The bipolar sphincterotome demonstrates efficient tissue cutting at lower energy levels.
    • The device appears safe and does not cause significant thermal damage or post-procedural complications like stenosis.
    • Lower power requirements suggest a potential for reduced procedure-related complications in ERCP sphincterotomies.