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为控制食管曲张静脉出血而行门脉完全性减压,可使门脉压力低于正常,并使门体侧枝循环完全萎陷.但由于丧失肝的门脉灌流,增加了发生脑病和肝衰竭的危险性.选择性远端脾肾分流术可避免上述并发症,但此后发现这一手术经过一段时间后,在大多数酒精性肝硬化病人中,也同样会丧失门脉灌注,推测与高压的门肠系膜系统和低压的胃脾系统之间新的侧枝循环形成有关.基于前述,作者进一步研究小口径(8或10mm)门腔H形移植(PCHG),伴广泛侧枝结扎部分门脉减压后的血流动力学.由于血管造影术仅能显示内脏血流动力学质的变化,作者采用放射核素作内脏静脉系统连续闪烁研究,
In order to control the esophageal variceal bleeding portal vein complete decompression, portal pressure can be lower than normal, and the door completely collapse the collateral circulation, but due to loss of hepatic portal perfusion increased encephalopathy and liver failure occurred Of the risk of selective distal splenorenal shunt to avoid these complications, but later found that after a period of time after surgery, in most patients with alcoholic cirrhosis, will also lose portal vein perfusion, presumably with high pressure Of the portal mesenchial system and the hypothalamic spleen system.According to the foregoing, the authors further study the small diameter (8 or 10 mm) of the portal H-shaped graft (PCHG), with extensive collateral ligation of part of the portal vein decompression After the hemodynamics.As angiography can only show the visceral hemodynamic changes, the authors use radionuclides as visceral venous system continuous scintillation study,