Objective: To observe the efficacy of continuous positive airway pressure (CPAP) in the treatment of obstructive sleep apnea hypopnea syndrome (OSAHS) and its affection on patients' blood gas analysis, C reactive protein(CRP) levels. Methods: This prospective study was performed from October 2016 to July 2017. Fifty hospitalized adult patients with medium or severe OSAHS, who were diagnosed by polysomnography (PSG) in Department of Otorhinolaryngology, Affiliated Hospital of Inner Mongolia Medical University, were collected as a case group. Those patients met the standards of medium or severe OSAHS, among whom 40 were male, 10 were female, the age was between 30 and 65, with a mean age of (47.24±10.28) years, and BMI was (27.94±3.43) kg/m(2). Meanwhile, 50 healthy individuals were chose in the same term as a control group, among whom 37 were male, 13 were female, the age was between 29 and 69, with a mean age of (51.28±10.58) years, body mass index(BMI) was (26.98±2.70) kg/m(2), and apnea-hypopnea index (AHI) was<5/h. The differences of blood gas analysis pH, arterial oxygen saturation (SaO(2)), arterial partial pressure of carbon dioxide (PaCO(2)), arterial partial pressure of oxygen (PaO(2)), CRP before and after the treatment of CPAP in case group and in the control group were compared. The choosing data were disposed and analyzed with statistics software of SPSS 20.0. Among which t test was adopted for measurement data, χ(2) test was adopted for enumeration data, and nonparametric rank sum test was adopted for other measurement data. Results: Before the CPAP treatment, pH, PaO(2) and SaO(2) levels in case group were lower than that in control group, respectively [7.34±0.03 vs. 7.37±0.04, (75.93±9.08) mmHg vs. (80.07±10.94) mmHg (1 mmHg=0.133 kPa), (89.71±6.09) mmHg vs.(93.29±5.36) mmHg, all P<0.05]. Both PaCO(2) level and CRP were higher than that in control group [(43.02±8.43) mmHg vs.(39.26±8.20) mmHg, 1.28[0.27,5.83] mg/L(Median[P(25),P(75)]) vs. 0.51[0.21,2.13] mg/L, both P<0.05]. After the CPAP treatment, pH(7.36±0.04), PaO(2) [(80.28±9.96) mmHg] and SaO(2) [(92.94±4.01) mmHg] level in case group were increased than pretreatment, respectively. Moreover, PaCO(2) level [(39.46±8.36) mmHg] and CRP(0.44[0.21,3.40] mg/L) are decreased than pretreatment (P<0.05), respectively. Conclusion: The CRP and blood gas analyses are significant index to evaluate the state of an illness and to estimate the prognosis of disease of OSAHS, which is deserved to generalize.
目的： 观察睡眠呼吸暂停低通气综合征（OSAHS）患者持续气道正压通气（CPAP）治疗前后血气及C反应蛋白（CRP）变化。 方法： 本研究为前瞻性研究。选择2016年10月—2017年7月经内蒙古医科大学附属医院耳鼻咽喉科收治的中、重度OSAHS成年患者50例作为病例组，其中男40例，女10例，年龄30~65（47.24±10.28）岁，体质量指数（BMI）为（27.94±3.43）kg/m(2)；选取同期健康体检者50名作为对照组，其中男37名，女13名，年龄29~69（51.28±10.58）岁，BMI为（26.98±2.70）kg/m(2)。监测病例组CPAP治疗前、治疗15 d后及对照组治疗前血气[pH值、动脉血氧饱和度（arterial oxygen saturation, SaO(2)）、动脉二氧化碳分压（arterial partial pressure of carbondioxide，PaCO(2)）、动脉氧分压（arterial partial pressure of oxygen，PaO(2)）]及CRP的变化。将收集的数据采用SPSS 20.0统计学软件进行处理分析，符合正态分布的计量资料组间比较采取t检验，计数资料组间比较采用χ(2)检验。不符合正态分布的计量资料组间比较采用非参数秩和检验。 结果： 病例组治疗前pH值、PaO(2)、SaO(2)均低于对照组[7.34±0.03比7.37±0.04，（75.93±9.08）mmHg比（80.07±10.94）mmHg，（89.71±6.09）mmHg比（93.29±5.36）mmHg，1 mmHg=0.133 kPa，P值均<0.05]；PaCO(2)、CRP均高于对照组[（43.02±8.43）mmHg比（39.26±8.20）mmHg，1.28[0.27，5.83]mg/L(中位数[25分位数,75分位数],下同)比0.44[0.21，3.40]mg/L]，差异均有统计学意义（P值均<0.05）。病例组CPAP治疗后pH值（7.36±0.04）、PaO(2)[（80.28±9.96）mmHg]、SaO(2)[（92.94±4.01）mmHg]均较治疗前升高，PaCO(2)[（39.46±8.36）mmHg]、CRP（0.44[0.21,3.40]mg/L）均较治疗前降低，差异均有统计学意义（P值均<0.05）。 结论： 血气、CRP变化是评估OSAHS患者CPAP治疗前后病情的重要指标。.
Keywords: Blood gas analysis; C-Reactive Protein; Continuous positive airway pressure; Sleep apnea, obstructive.