门脉高压性胃病时胃粘膜血灌流量是增加还是减少,现仍有争论。本研究应用新的氧探头测量粘膜氧合作用,旨在确定内镜下应用该探头的可行性及检查临床状态下某处粘膜氧气可能的变化。 方法 用改良极谱法氧电极连续测量上皮弥散到仪器的氧气量(而不是压力)。动物实验表明该探头能检测总血流量改变引起的浆膜和粘膜面氧合作用的迅速变化。步骤:内镜检查后,将探头通过活检管道直视下接触粘膜表面,避免施加压力。每次持续检测45秒钟足以获得一 Gastric mucosal blood perfusion is increased or decreased when portal hypertensive gastropathy is still controversial. In this study, mucosal oxygenation was measured using a new oxygen probe designed to determine the feasibility of using the probe under endoscopy and to examine possible changes in mucosal oxygen somewhere in the clinical setting. Methods The oxygen volume (rather than pressure) of the epithelium diffused into the instrument was continuously measured by a modified polarographic oxygen electrode. Animal experiments show that the probe can detect changes in total blood flow caused by rapid changes in serosal and mucosal oxygenation. Steps: Endoscopy, the probe through the biopsy pipe under direct contact with the mucosal surface, to avoid pressure. Each continuous test 45 seconds enough to get one