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  • Title: Significance of Simultaneous Splenic Artery Resection in Left-Sided Portal Hypertension After Pancreaticoduodenectomy with Combined Portal Vein Resection.
    Author: Gyoten K, Mizuno S, Nagata M, Ogura T, Usui M, Isaji S.
    Journal: World J Surg; 2017 Aug; 41(8):2111-2120. PubMed ID: 28258459.
    Abstract:
    BACKGROUND: In pancreaticoduodenectomy (PD) with resection of portal vein (PV)/superior mesenteric vein (SMV) confluence, the splenic vein (SV) division may cause left-sided portal hypertension (LPH). METHODS: The 88 pancreatic ductal adenocarcinoma patients who underwent PD with PV/SMV resection after chemoradiotherapy were classified into three groups: both SV and splenic artery (SA) were preserved in Group A (n = 16), SV was divided and SA was preserved in Group B (n = 58), and both SV and SA were divided in Group C (n = 14). We evaluated the influence of resection of SV and/or SA on LPH after PD with resection of PV/SMV confluence. RESULTS: The incidence of postoperative varices in Groups A, B and C was 6.3, 67.2 and 38.5%, respectively (p < 0.001), and variceal bleeding occurred only in Group B (n = 4: 6.8%). In multivariate analysis, Group B was the only significant risk factor for the development of postoperative varices (Groups B vs. A: odds ratio = 39.6, p = 0.001, Groups C vs. A: odds ratio = 8.75, p = 0.066). The platelet count ratio at 6 months after operation comparing to preoperative value was 0.93, 0.73 and 1.09 in Groups A, B and C, respectively (Groups B vs. C: p < 0.05), and spleen volume ratio at 6 months was 1.00, 1.37 and 0.96 in Groups A, B and C, respectively (Groups B vs. A and C: p < 0.01 and p < 0.05). CONCLUSION: In PD with resection of PV-SMV confluence, the SV division causes LPH, but the concomitant division of SV and SA may attenuate it.
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