Extended left trisectionectomy severing all hepatic veins preserving segment 6 and inferior right hepatic vein
Machado MA , Bacchella T , Makdissi FF , Surjan RT , Machado MC
Eur J Surg Oncol 2008;34:247-251.
Involvement of all major hepatic veins is usually a contraindication to resection for advanced tumors of the liver. To overcome this surgical challenge some authors described several techniques of hepatic vein reconstruction. Inferior right hepatic vein is sometimes present and drain the posteroinferior area of the right liver (segment 6). In 1987, Makuuchi and co-workers proposed four types of hepatectomy for resection of the main right hepatic vein and preservation of the inferior right hepatic vein. At that time they mentioned that extended left trisectionectomy, one of those four types, had not yet been performed. Ozeki et al. performed an extended left trisectionectomy but the bulk of segment 7 was preserved because of the existence of thick middle right hepatic vein. Similar operation has been performed by Baer and co-workers, also with preservation of part of segment 7. We described a case of extended left trisectionectomy exactly as proposed by Makuuchi in 1987, which comprises left trisectionectomy with resection of segments 7 and 1 by severing all major hepatic veins and preservation of the inferior hepatic vein. Remnant liver was represented by segment 6 alone. To our knowledge this is the first paper to report the extended left trisectionectomy, idealized by Makuuchi and co-workers 20 years ago.
