Periodic Psychosis in Adolescence

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Twelve dogs were divided into four groups: Group I-simple interruption of the portal vein for 40 minutes; Group II-interruption of the portal vein combined with interruption of the superior mesenteric artery for 40 minutes; Group III-simple interruption of the portal vein for 60 minutes; Group IV-interruption of the portal vein combined with interruption of the superior mesenteric artery for 60 minutes. The arterial, central venous pressures, arterial blood pH, blood suger, serum glutamic oxalacetic transaminase (SGOT), serum glutamic pyruvic transaminase (SGPT) and leucine aminopeptidase values were measured at various intervals during the experiment. The arterial and central venous pressures and portal venous pressure rose abruptly during and immediately after the interruption. All the dogs were hemodynamically more stable in Groups II and IV than in Groups I and III. The arterial bllod pH levels fell to 7.2-7.3 during the interruption and reached their lowest values 60 minutes after release of the interruption. The SGOT, SGPT and leucine aminopeptidase increased after interruption of the portal vein, though these levels Were higher in Groups I and III than in Groups II and IV. Consequently, it seems safe to interrupt both the portal vein and the superior mesenteric artery during portal vein reconstruction in periampullary cancer of the pancreas.
Yamaguchi University Graduate School of Medicineの論文