论文部分内容阅读
明确肺栓塞患者肺泡气 动脉血氧分压差P(A a)O2 变化的影响因素 ,探讨P(A a)O2 等血气指标在肺栓塞诊断中的价值。对 4 7例肺栓塞患者血气分析指标及其影响因素 (年龄、性别、肺栓塞面积、原有心肺疾患、诊断间隔 )之间的相关关系进行了单因素及多因素回归分析。 74 %的患者 ( 35例 )动脉血氧分压 (PO2 )低于 80mmHg ,85% ( 4 0例 )患者P(A a)O2 高于正常 ,经多元回归方程筛选出P(A a)O2 的影响因素为肺栓塞面积、性别、年龄。在肺栓塞诊断中 ,P(A a)O2 具有较PO2 更高的敏感性 ,影响肺栓塞患者P(A a)O2 的因素为肺栓塞面积、性别、年龄
To clarify the influencing factors of change of P (A a) O2 in alveolar airway in patients with pulmonary embolism, and to explore the value of P (A a) O2 in the diagnosis of pulmonary embolism. Single factor and multivariate regression analysis were performed on the correlation between blood gas analysis indexes and influencing factors (age, sex, area of pulmonary embolism, original cardiopulmonary disease, diagnostic interval) in 47 patients with pulmonary embolism. P (A a) O2 was lower than 80 mmHg in 74% of the patients (35 cases) and P (A a) O2 was higher than that of normal in 85% (40 cases) The influencing factors are pulmonary embolism area, sex, age. In the diagnosis of pulmonary embolism, P (A a) O2 has higher sensitivity than PO2, and the factors influencing the P (A a) O2 in patients with pulmonary embolism are the pulmonary embolism area, sex, age