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对 91例首次急性心肌梗塞患者进行动脉血气分析。结果表明 :① 2 5 2 % (2 3/ 91)患者PaO2 <8 0 0kPa(lkPa =7 5mmHg) ;40 6 % (37/ 91)患者PaO2 <9 33kPa ,其中 11例死亡 ,病死率明显高于PaO2 >9 33kPa者 (P<0 0 5 )。PaO2 <8 0 0kPa的 11例患者中 9例死亡 ,病死率明显高于PaO2 8 0 0～ 9 33kPa者 (P <0 0 1)。② 91例患者中 82例发生不同类型酸碱失衡 (90 1% ) ,38例混合型酸碱失衡者 13例死亡 ,病死率明显高于单纯性酸碱失衡者 (P <0 0 1)。pH >7 5 0 0者 14例中 9例死亡 ,病死率明显高于pH 7 30 0～ 7 5 0 0者 (P <0 0 1)。③ 91例患者血pH为 7 46 5± 0 0 6 9。提示 :动脉血气分析有利于对急性心肌梗塞患者的预后和病情判断及指导治疗。
Arterial blood gas analysis was performed in 91 patients with first acute myocardial infarction. The results showed that: PaO2 <800 kPa (lkPa = 7 5 mmHg) in 25.2% (23/91) patients and PaO2 <9 33 kPa in 40 6% (37/91) patients, of which 11 patients died and the mortality rate was significantly higher PaO2> 9 33kPa (P <0 05). Nine of 11 patients with a PaO2 <800 kPa died, with a significantly higher mortality rate than those with a PaO2 of 800 to 933 kPa (P <0.01). ② Among the 91 patients, 82 cases had different types of acid-base imbalance (90 1%). Thirty-three patients with mixed acid-base imbalance died and the mortality rate was significantly higher than those with simple acid-base imbalance (P <0.01). Nine of 14 patients died of pH> 7500, the mortality rate was significantly higher than that of pH 7 30 0 ~ 75 0 (P <0.01). The blood pH of 91 patients was 7 465 ± 0 0 6 9. Tip: Arterial blood gas analysis is conducive to the prognosis and condition of patients with acute myocardial infarction to judge and guide the treatment.