胸部肿瘤病人围手术期血气监测及临床意义

Perioperative Arterial Blood-gas Analyses in Patients with Intrathoracic Tumor and Clinical Significance

报道１００例胸部肿瘤病人围手术期血气监测结果：术后１～４天动脉血氧分压较术前明显降低（Ｐ＜０．００１）。食管和肺手术后平均动脉血氧分压无明显差异（Ｐ＞０．０５）。术后低氧血症与年龄、术前心肺并发症及麻醉、手术引起的ＶＡ／Ｑ比例失常有关。它是引起术后心肺并发症的重要因素，所以为了减少术后并发症，术后３天内常规吸氧并保持呼吸道通畅是非常重要的。

The authors report perioperative arterial bloodgas analyses among 100 patients with intrathoracic tumors. During the first four postoperative days, PaO2 values were lower than preoperative ones (P<0.001). Postoperative PaO2 was not significantly different between esophagus and lung cases (P>0.05). Postoperative hypoxemia had close relationship with age, preoperative cardiopulmonary concomitant disease and degree of V/Q imbalance. And it was the major factor causing postoperative cardiopulmonary complications. Therefore, it is important to give oxygen therapy within first 4 postoperative days and keep the airway clean and patent to reduce postoperative complications.