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  • Title: Laparoscopic hepatectomy for extrahepatic growing tumor. Surgical strategy based on extrahepatic growing index.
    Author: Takagi S, Kaneko H, Ishii T, Tamura A, Yamazaki K, Yoshino M, Tsuchiya M, Joubara N, Otuka Y, Shiba T.
    Journal: Surg Endosc; 2002 Nov; 16(11):1573-8. PubMed ID: 12072996.
    Abstract:
    BACKGROUND: This article describes the operative procedures, varying difficulties, and required instrumentation for performing laparoscopic hepatectomy (LH) on the basis of a lesion's extrahepatic growing (EG) index, as calculated by computed tomography (CT). METHODS: Laparoscopic partial hepatectomy cases were divided into the following two groups: an EG tumor group (n = 11) and an intrahepatic tumor group (n = 8). The surgical procedures, operative results, and laparoscopic instrumentation for these two groups were compared based on the EG index (/cm2; maximum diameter of tumor pedicle/maximum vertical diameter of tumor/area of the tumor). RESULTS: The mean operative time was significantly shorter and the mean blood loss was significantly less in the EG tumor group than in the intrahepatic tumor group. In addition, in the EG tumor group, there were significant differences in mean operative time and mean blood loss related to the values associated with the EG index (p <0.05, P <0.01). The selection of laparoscopic instruments was based on the EG index, as follows: (a) lesions with an EG index >5/cm2 underwent resection in combination with a microwave tissue coagulator and an ultrasonic surgical aspirator (13 cases, including intrahepatic tumor cases); (b) lesions with an EG index of 5-15/cm2 underwent resection in combination with a microwave tissue coagulator and laparosonic coagulating shears (four cases); (c) lesions with an EG index <%15/cm2 underwent resection with a laparoscopic linear stapler (two cases). CONCLUSION: Our preliminary experience leads us to believe that it is useful to calculate the EG index by CT scan before formulating the technical strategy for a subsequent LH procedure.
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