| Aim: To discuss the assessment criteria of hyoxemia in the blocking type of sleep apnea hypoventilation syndrome. The damage criterion of night hyoxemia is the lowest blood oxygen saturation formerly. That is 85%<the lowest blood oxygen saturation<90% is mild,65%<the lowest blood oxygen saturation<85% is moderate,the lowest blood oxygen saturation<65% is severe. It is found that the indexing of hyoxemia is contradictory to that of the OSAHS in the clinical work.The purpose of this study is to discuss the assessment criteria in the reaction sleep of low oxygen more actually, more scientifically. And this study is done among the indexes of degree of blood oxygen saturation of awake, the lowest blood oxygen saturation, the longest hypoventilation learned in oxygen saturation, the longest hypoventilation blood oxygen saturation, T90,T85,T80,T75,T70,T65,T60. This study discusses the correlation of this factor and AHI and whether this kind of correlation could be taken as the assessment criteria of diagnosing hyoxemia and the illness indexing and whether it is superior to the other indexes according to the effects of different low hypoxia stages and low oxygen duration setting percentage of weighted hypoxemia time in total sleep time.Method: Draw 79 cases of adult men 19~62(40.92±11.57005)BMI 18.72~36.63(28.1602±3.36536)kg/m2 from the whole cases of Shenyang military district general hospital (2011.1-2011.3) randomly. Among them, mild ones are 11, moderate ones are 25 and serious ones are 43. And to judge whether the differences exist among the different teams according to the descriptive analysis of age, BMI, the longest apnea is learned in oxygen saturation, T90,T85,T80,T75,T70,T65,T60 and the analysis to the percentage of weighted hypoxemia time in total sleep time. To discuss whether the correlation does exist between AHI and the above and the relevance of size of them by doing the relevant analysis among the minimum learn oxygen saturation, awake blood oxygen saturation, the longest hypoventilation learned in oxygen saturation, the longest apnea learned in oxygen saturation, T90,T85,T80,T75,T70,T65,T60 and percentage of weighted hypoxemia time in total sleep time. Doing number of regression analysis in the indexes that is related with AHI and other case. By doing so, it can be ensured that the index that are closely related with AHI and owns the highest effect is the one to diagnose the hyoxemia and to judge the degree of it.Result: 1. The statistical differences do not exist among the following items: age of OSAHS patients (mild 46.00±14.17,moderate 41.32±10.02,serious 39.40±11.58,F=1.47 , P=0.24 > 0.05), awake blood oxygen saturation ( mild 0.85±0.28 ,moderate0.93±0.02,serious0.93±0.02,F=0.98,P=0.38>0.05), BM(Imild 27.58±4.65,moderatev28.17±2.99,serious 28.31±3.25,F=0.61,P=0.55>0.05), the longest hypoventilation learned in oxygen saturation (mild0.78±0.09,moderate 0.73±0.12,serious0.61±0.14,F=1.84,P=0.17>0.05), T75(mild0.00±0.00,modrate0.03±0.07,serious0.04±0.05,F=2.29,P=0.11>0.05),T70(mild0.00±0.00,moderate0. 02±0.054,serious0.01±0.02,F=0.98,P=0.38>0.05),T65(mild0.00±0.00,moderate0.00±0.00,serious0.00±0.00,F=1.01,P=0.37>0.05),T60(mild0.00±0.00,moderate0.00±0.01,serious0.00±0.01,F=0.44,P=0.64>0.05).2. There do exist statistical differences among the following ones: the lowest blood oxygen saturation of OSAHS patients (mild 90.27±4.45,moderate 85.60±18.53,serious 76.37±20.05,F=12.31,P=0.000<0.05),the longest apnea is learned in oxygen saturation(mild 74.45±36.94,moderate 87.20±18.48,serious 86.77±14.34,F=3.59,P=0.032<0.05),T90(mild 0.21±0.24,moderate 0.18±0.20,serious 0.44±0.19,F=15.80,P=0.00<0.05),T85(mild 0.03±0.11,moderate 0.06±0.13,serious 0.18±0.13,F=10.39,P=0.00<0.05),T80(mild 0.00±0.00,moderate 0.03±0.10,serious 0.09±0.09,F=5.49,P=0.01<0.05),percentage of weighted hypoxemia time in total sleep time(mild 0.22±0.26,moderate0.20±0.23,serious0.47±0.20,F=14.22,P=0.00<0.05).3. There do exist the relationship between AHI and the following ones the lowest blood oxygen saturation(related factor=-0.48,P=0.00<0.05),the longest apnea, blood oxygen saturation(related factor=-0.32,P=0.00<0.05),T90(related factor =0.56,P=0.00<0.05),T85(related factor =-0.56,P=0.00<0.05),T80(related factor =0.45,P=0.00<0.05),T75(related factor =0.29,P=0.01<0.05),percentage of weighted hypoxemia time in total sleep time(related factor =0.55,P=0.00<0.05).4. There do not exist the relation between AHI and the followings: awake learn oxygen saturation(related factor =0.10,P=0.38>0.05),the longest hypoventilation learned in oxygen saturation(related factor =0.06,P=0.60>0.05),T70(related factor =0.09,P=0.43>0.05),T65(related factor =-0.03,P=0.81>0.05),T60(related factor =0.12,P=0.28>0.05).5. According to the number of regression analysis to the different idexes that are related to AHI, only if P≤0.05 is conclude in the equation, P≥0.1 is excluded from the equation and weighted low oxygen coefficient is chosen into the equation, the related factor would be 0.54, F=30.87,and P=0.00. Therefore, it can be concluded that AHI is closely connected with weighted low oxygen coefficient.Conclusion: 1. The lowest blood oxygen saturation do exist the difference among the three patients teams of mild, moderate and serious to the AHI. However, the relation factor is not quite obvious. Therefore, it is not correct to be taken as the judge of hyoxemis diagnosing.2. The evaluation of T90 and T85 of hyoxemia is quite superior to that of the lowest blood oxygen saturation.3. The biggest factor to AHI is weighted hyoxemia coefficient according to the number of regression analysis compared to T90 and T85. And it can be taken as the best index of evaluation of hyoxemia. |
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