Journal of Microwave Surgery
Online ISSN : 1882-210X
Print ISSN : 0917-7728
ISSN-L : 0917-7728
The estimation of the safe resecting volume in case of hepatectomy using the Microwave Tissue Coagulator (Microtaze®)
Kazunari MoriKatsuyoshi TabuseYoji Tabuse
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1992 Volume 10 Pages 15-23

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Abstract

In order to avoid postoperative liver failure after hepatectomy, the evaluation with liver functiontests and the resecting volume should be done actually.
By examining our clinical cases retrospectively and prospectively, we got the formula to calculatethe safe resecting volume of the liver tissue especially in the cases of hepatectomy using the Microwave Tissue Coagulator (Microtaze®). With the indicators of the serum disappearance rateof indocyanine green (ICGK), the percent activity of the hepaplastintest (HPT), the volume of the tumor (VT) calculated from the diameter of the main tumor as a sphere, and the long diameter (R) of the oval shaped resecting line which mapped out on the surface of the liver, the formula “460×ICGK+VT (cm3)” was clinically used in the cases of the typical hepatectomy, and the formula “500×ICGK+3.7×HPT+VT-7.5×R-100 (cm3)” was used in the cases of atypical hepatectomyas the safe resecting liver volume.
They will be useful in the cases of hepatectomy using the Microwave Tissue Coagulator.

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© Study Group of Microwave Surgery
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