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6. Performance of a modified three‐level classification in stratifying open liver resection procedures in terms of complexity and postoperative morbidity.

Author

Kawaguchi, Y., Hasegawa, K., Tzeng, C.‐W. D., Mizuno, T., Arita, J., Sakamoto, Y., Chun, Y. S., Aloia, T. A., Kokudo, N., and Vauthey, J.‐N.

Subjects
LIVER, LIVER surgery, LAPAROSCOPIC surgery, CLASSIFICATION, HEPATECTOMY, DISEASES
Abstract

Copyright of British Journal of Surgery is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2020
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7. Hepatectomy for hepatocellular carcinoma after perioperative management of portal hypertension.

Author

Takemura, N., Aoki, T., Hasegawa, K., Kaneko, J., Arita, J., Akamatsu, N., Makuuchi, M., and Kokudo, N.

Subjects
PORTAL hypertension, HEPATOCELLULAR carcinoma, HEPATECTOMY, CLINICAL indications, DISEASE complications
Abstract

Background: Indications for hepatectomy in patients with hepatocellular carcinoma (HCC) who have portal hypertension (PH) have been controversial. Some studies have concluded that PH is a contraindication to hepatectomy, whereas others have suggested that perioperative prophylactic management (PPM) can help overcome complications after hepatectomy associated with PH. The objective of this retrospective study was to assess the short‐ and long‐term outcomes after hepatectomy for HCC in patients with PH, with or without PPM. Methods: Records were reviewed of consecutive patients who underwent hepatectomy for HCC, with or without PPM of PH, in a single institution from 1994 to 2015. Patients were divided into three groups: those who received PPM for PH (PPM group), patients who had PH but did not receive PPM (no‐PPM group) and those without PH (no‐PH group). Results: A total of 1259 patients were enrolled, including 123 in the PPM group, 181 in the no‐PPM group and 955 in the no‐PH group. Three‐ and 5‐year overall survival rates were 74·3 and 53·1 per cent respectively in the PPM group, 69·2 and 54·9 per cent in the no‐PPM group, and 78·1 and 64·2 per cent in the no‐PH group (P = 0·520 for PPM versus no PPM, P = 0·027 for PPM versus no PH, and P < 0·001 for no PPM versus no PH). Postoperative morbidity and mortality rates were 26·0 and 0·8 per cent respectively in the PPM group, 29·8 and 1·1 per cent in the no‐PPM group, and 20·3 and 0 per cent in the no‐PH group. Conclusion: The present study has demonstrated acceptable outcomes among patients with HCC who received appropriate management for PH in an Asian population. Enhancement of the safety of hepatic resection through use of PPM may provide a rationale for expansion of indications for hepatectomy in patients with PH. [ABSTRACT FROM AUTHOR]

Published
2019
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11. SEMICLASSICAL ORIGIN OF SHELL STRUCTURES IN DEFORMED NUCLEI:: DEPENDENCE ON SURFACE DIFFUSENESS AND EFFECT OF SPIN-ORBIT COUPLINGS.

Author

Ken-Ichiro Arita, J. B.

Subjects
*NUCLEAR physics, *NUCLEAR reactions, *ORBITS (Astronomy), *NUCLEAR size (Physics), *NUCLEAR structure
Abstract

Shell structures in nuclear mean field potentials are analyzed using semiclassical periodic-orbit theory. r[sup α]-type potential model is taken as an approximation of Woods-Saxon model, and spin-orbit coupling is also taken into account. Using this model, we examine shell structure as functions of deformation, nuclear size (diffuseness), and spin-orbit coupling strength. Significant roles of periodic orbit bifurcations for strong deformed shell effects are clarified. Special attentions will be paid to bifurcations of the 'bridge orbits', which emerge from symmetric orbits and then submerge in other symmetric orbits by varying a potential parameter. [ABSTRACT FROM AUTHOR]

Published
2004
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