Bilateral anatomic resection of the ventral parts of the paramedian sectors of the liver with total caudate lobectomy for deeply/centrally located liver tumors: a new technique maximizing both oncological and surgical safety

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  • Junichi Shindoh
    Hepatobiliary‐pancreatic Surgery Division Department of Gastroenterological Surgery Toranomon Hospital 2‐2‐2 Toranomon Minato‐ku Tokyo 105‐8470 Japan
  • Yujiro Nishioka
    Hepatobiliary‐pancreatic Surgery Division Department of Gastroenterological Surgery Toranomon Hospital 2‐2‐2 Toranomon Minato‐ku Tokyo 105‐8470 Japan
  • Masaji Hashimoto
    Hepatobiliary‐pancreatic Surgery Division Department of Gastroenterological Surgery Toranomon Hospital 2‐2‐2 Toranomon Minato‐ku Tokyo 105‐8470 Japan

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<jats:title>Abstract</jats:title><jats:p>Systematic resection of the tumor‐bearing portal territory is reportedly correlated with an improved survival of patients with liver tumors, especially in hepatocellular carcinoma. Despite advances in surgical management, however, anatomic resection of deeply/centrally located tumors remains a challenging procedure not only with technical difficulty but also because of decreased hepatic functional reserve frequently observed due to underlying liver disease. In this report, we have reported a novel technique that allows a promising approach for deeply/centrally located tumors with maximizing both the surgical and oncological safety. Bilateral anatomic resection of the ventral parts of the paramedian sectors (<jats:styled-content style="fixed-case">BVPM</jats:styled-content>) offers a sufficient surgical window for safe access to the perihilar region. This technique is based on Hjortsjo's theory for liver anatomy and enables systematic removal of the 3rd‐order portal territories. In addition, the current technique is advantageous in minimizing the loss of the normal liver parenchyma without leaving ischemia or congestion in the future liver remnant. Of the seven consecutive patients who were treated with this procedure, all the patients achieved R0 resection with acceptable rate of major morbidity (1/7, 14%). The <jats:styled-content style="fixed-case">BVPM</jats:styled-content> may offer a safe and maximized chance of curative resection for deeply/centrally located liver tumors.</jats:p>

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