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Hemisplenectomy using a hand-held CO2 laser. An experimental study.

R Orda, T Wiznitzer, J J Bubis

Journal of Pediatric Surgery

|April 1, 1982

Summary

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This study demonstrates the efficacy of CO2 laser hemisplenectomy in dogs, achieving precise cutting and hemostasis with minimal tissue damage. The procedure proved safe and effective, preserving residual spleen function.

Area of Science:

Veterinary Surgery
Surgical Technology

Background:

Hemisplenectomy is a surgical procedure involving partial removal of the spleen.
Minimally invasive surgical techniques are continually being explored for improved patient outcomes.

Purpose of the Study:

To evaluate the feasibility and safety of using a carbon dioxide (CO2) laser for performing hemisplenectomy in mongrel dogs.
To assess the hemostatic and cutting capabilities of the CO2 laser in splenic tissue.
To examine the histological effects and functional recovery of the remaining splenic parenchyma post-procedure.

Main Methods:

Hemisplenectomy was performed on mongrel dogs utilizing a handheld CO2 laser device.
High-power density (6kW/mm2) focused laser beam was used for cutting and initial hemostasis.

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A defocused laser beam was employed for controlling residual bleeding.

Temporary occlusion of splenic arterial vessels and intra-arterial adrenaline injection were used to minimize bleeding.

Postoperative assessment included technetium scans to evaluate spleen activity and peripheral blood analysis for Howell-Jolly bodies.

Main Results:

The CO2 laser facilitated effective cutting and hemostasis during hemisplenectomy.
The surgical procedure resulted in no mortality or morbidity in the canine subjects.
Histological examination revealed fibrous tissue formation at the cut surface without abnormalities in the underlying splenic parenchyma.
Technetium scans confirmed the activity of the remaining half spleen.
Howell-Jolly bodies were observed in peripheral blood only after the complete resection of the remaining spleen, indicating preserved function of the residual portion.

Conclusions:

CO2 laser hemisplenectomy is a safe and effective surgical technique in canine models.
The laser provides precise cutting and adequate hemostasis, with minimal impact on splenic parenchyma.
The residual spleen maintains functional capacity following laser-assisted partial splenectomy.