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垂体门脉灌注压为门脉输入压和垂体局部组织压之差。在人体测量此压很困难。作者首次报道于经蝶入路垂体手术中直接测量垂体局部组织压(平均鞍内组织压MISP)。MISP等于门脉舒张压加1/3脉压。由于垂体系静脉供血,故其灌注压易受垂体窝内病变的影响。而此压力又与垂体前叶功能密切相关。共24例垂体腺瘤病例。术前测定血清催乳素(PRL):4例正常,9例增高(系垂体柄压迫所致),6例为
Pituitary portal perfusion pressure is the difference between the portal pressure and the local tissue pressure of the pituitary. Measuring the pressure in the human body is difficult. For the first time, the authors reported direct measurement of the local tissue pressure of the pituitary (mean intratissular pressure MISP) during transsphenoidal pituitary surgery. MISP equals portal diastolic pressure plus 1/3 pulse pressure. Due to the venous blood supply in the vertical system, the perfusion pressure is easily affected by pituitary fossa lesions. This pressure is closely related to the anterior pituitary function. A total of 24 cases of pituitary adenomas. Preoperative determination of serum prolactin (PRL): 4 cases normal, 9 cases increased (by pituitary stalk compression), 6 cases