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Related Experiment Videos

Liver resection in children, using a water-jet

Y Hata1, F Sasaki, H Takahashi

  • 1First Department of Surgery, Hokkaido University School of Medicine, Sapporo, Japan.

Journal of Pediatric Surgery
|May 1, 1994
PubMed
Summary

The water-jet dissector offers a simpler, safer method for pediatric liver resection, facilitating easier dissection of liver parenchyma compared to traditional ultrasonic aspirators.

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Area of Science:

  • Pediatric Surgery
  • Surgical Technology
  • Hepatobiliary Surgery

Background:

  • Hepatic resection in children presents unique surgical challenges.
  • Minimally invasive techniques are crucial for improving outcomes in pediatric liver surgery.
  • Existing methods like the Cavitron Ultrasonic Surgical Aspirator (CUSA) have limitations.

Purpose of the Study:

  • To evaluate the efficacy and safety of the water-jet dissector in pediatric liver resection.
  • To compare the water-jet dissector with the CUSA for bisegmentectomy and trisegmentectomy.
  • To assess operative time, blood loss, and ease of dissection.

Main Methods:

  • A comparative study involving pediatric patients undergoing liver resection.
  • Eight patients (water-jet group) were compared to five patients (CUSA group).

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  • Optimal water-jet parameters: 12-15 kgf/cm² pressure, 0.15-mm nozzle, using physiological saline.

    • Main Results:

    • Mean operative time: 4.08 hours (water-jet) vs. 5.08 hours (CUSA).
    • Mean blood loss: 602 mL (water-jet) vs. 1036 mL (CUSA).
    • Liver parenchyma dissection was significantly easier with the water-jet dissector, though differences in time, blood loss, and complications were not statistically significant.

    Conclusions:

    • The water-jet dissector is a viable and effective tool for pediatric liver resection.
    • Its mechanical simplicity and safety suggest potential for broader adoption in pediatric hepatobiliary surgery.
    • Further research may confirm its advantages in reducing operative time and blood loss.