BACKGROUND: Left hepatic trisectionectomy is a challenging procedure. For an anatomically correct resection, it is necessary to have understanding of the right intersectional plane; however, little is known on this issue. The purpose of this study was to investigate the 3D anatomy of the right intersectional plane and to enable safe and precise left trisectionectomy. METHODS: A virtual left trisectionectomy was performed using 3D-processing software, in patients who underwent computed tomography. The reconstructed images were reviewed, and attention was paid to the extent of the right hepatic vein (RHV) exposure on the transected plane and the type of the inferior right hepatic vein (IRHV). RESULTS: Of the 200 study patients, 109 (54.5 %) patients showed complete exposure of the RHV on the transected plane, whereas the remaining 91 exhibited partial exposure. In the 109 patients with complete exposure, 58 (53.2 %) patients had no IRHV and the remaining 51 had a small IRHV. None of the patients had a large IRHV. In contrast, of the 91 patients with partial exposure, only 10 (11.0 %) patients had no IRHV, 35 (38.5 %) had a small IRHV, and 46 (50.5 %) patients had a large IRHV. The incidence of IRHV types was significantly different between the two groups (P < 0.001). CONCLUSIONS: The RHV does not always run along the right intersectional plane, i.e., the vein is not always fully exposed on the transected plane even after anatomically correct left trisectionectomy. The extent of the RHV exposure is closely related to the type of the IRHV.
BACKGROUND: Left hepatic trisectionectomy is a challenging procedure. For an anatomically correct resection, it is necessary to have understanding of the right intersectional plane; however, little is known on this issue. The purpose of this study was to investigate the 3D anatomy of the right intersectional plane and to enable safe and precise left trisectionectomy. METHODS: A virtual left trisectionectomy was performed using 3D-processing software, in patients who underwent computed tomography. The reconstructed images were reviewed, and attention was paid to the extent of the right hepatic vein (RHV) exposure on the transected plane and the type of the inferior right hepatic vein (IRHV). RESULTS: Of the 200 study patients, 109 (54.5 %) patients showed complete exposure of the RHV on the transected plane, whereas the remaining 91 exhibited partial exposure. In the 109 patients with complete exposure, 58 (53.2 %) patients had no IRHV and the remaining 51 had a small IRHV. None of the patients had a large IRHV. In contrast, of the 91 patients with partial exposure, only 10 (11.0 %) patients had no IRHV, 35 (38.5 %) had a small IRHV, and 46 (50.5 %) patients had a large IRHV. The incidence of IRHV types was significantly different between the two groups (P < 0.001). CONCLUSIONS: The RHV does not always run along the right intersectional plane, i.e., the vein is not always fully exposed on the transected plane even after anatomically correct left trisectionectomy. The extent of the RHV exposure is closely related to the type of the IRHV.
Authors: Hauke Lang; Georgios C Sotiropoulos; Eirini I Brokalaki; Arnold Radtke; Andrea Frilling; Ernesto P Molmenti; Massimo Malagó; Christoph E Broelsch Journal: J Am Coll Surg Date: 2006-07-13 Impact factor: 6.113
Authors: Hideki Nishio; Ernest Hidalgo; Zaed Z R Hamady; Kadiyala V Ravindra; Anil Kotru; Dowmitra Dasgupta; Ahmed Al-Mukhtar; K Rajendra Prasad; Giles J Toogood; J Peter A Lodge Journal: Ann Surg Date: 2005-08 Impact factor: 12.969
Authors: Adrian K H Chiow; David Fuks; Gi-Hong Choi; Nicholas Syn; Iswanto Sucandy; Marco V Marino; Mikel Prieto; Charing C Chong; Jae Hoon Lee; Mikhail Efanov; T Peter Kingham; Sung Hoon Choi; Robert P Sutcliffe; Roberto I Troisi; Johann Pratschke; Tan-To Cheung; Xiaoying Wang; Rong Liu; Mathieu D'Hondt; Chung-Yip Chan; Chung Ngai Tang; Ho-Seong Han; Brian K P Goh Journal: Br J Surg Date: 2021-12-01 Impact factor: 6.939