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1.
Langenbecks Arch Surg ; 406(5): 1533-1541, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34165596

RESUMO

PURPOSE: The aim of this retrospective study was to evaluate a revised classification system for predicting the difficulty of laparoscopic partial liver resection. METHODS: Patients who had undergone initial laparoscopic partial liver resection for a solitary lesion from January 2012 to February 2021were classified into two groups according to the type of procedure performed, "scooping-out" versus "cutting." The participants were then further divided into "small" and "large" subgroups according to the tumor's depth and diameter. Finally, they were categorized into two groups, namely "standard" and "advanced." Operative outcomes were compared between the two groups and the proposed revised system for classifying difficulty of laparoscopic partial liver resection compared with the existing scoring system. RESULTS: Of the 65 procedures assessed, 40 were categorized as standard and 25 as advanced. Tumor size (P < 0.001), operation time (P < 0.001), volume of intraoperative blood loss (P = 0.001), rate of the Pringle maneuver (P = 0.044), and resected liver weight (P < 0.001) were significantly greater in the advanced than in the standard group. Differences in operation time and intraoperative blood loss were not identified by the existing difficulty scoring system. CONCLUSION: The proposed revised classification is useful for predicting the difficulty of laparoscopic partial liver resection.


Assuntos
Laparoscopia , Neoplasias Hepáticas , Hepatectomia , Humanos , Neoplasias Hepáticas/cirurgia , Estudos Retrospectivos , Resultado do Tratamento
2.
Ann Gastroenterol Surg ; 4(6): 701-709, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33319161

RESUMO

Aim: This study sought to evaluate the incidence, risk factors, and clinical outcomes of portal vein thrombosis after hepatectomy. Furthermore, we proposed a novel classification and treatment strategy for portal vein thrombosis after hepatectomy. Methods: We retrospectively analyzed 398 patients who underwent hepatectomy and enhanced computed tomography imaging within 14 days after surgery in our hospital from 2009 to 2019. Portal vein thrombosis was classified into three categories according to the location of the thrombus - main, hilar, and peripheral - with main portal vein thrombosis further subclassified into three grades. Each patient's treatment strategy was determined based on their portal vein thrombosis classification and grading. From 2015, enhanced computed tomography imaging was performed routinely on patients who underwent anatomical hepatectomy on postoperative day 7. Results: Portal vein thrombosis was diagnosed in 57 patients (14.3%) during the study period. Multivariate analysis revealed that a Pringle maneuver time of 75 minutes or longer was a significant predictor of portal vein thrombosis (P = .012). In total, 52 patients (91%) with portal vein thrombosis recovered by surgery, anticoagulant therapy, or without specific treatment. There was no instance of mortality recorded. Conclusions: Patients who undergo hepatectomy are at high risk for portal vein thrombosis, especially when the Pringle maneuver time is long. The proposed classification and treatment strategy may be useful for clinical management of patients with portal vein thrombosis after hepatectomy.

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