国外对于急性心肌梗塞时血气变化的研究开始于60年代末,70年代初冠心病监护病房建立之后,多数研究者认为急性心肌梗塞时动脉氧分压的下降程度可以正确地反映临床病情的轻重,但对血液PH及动脉二氧化碳分压的变化是否反映病情则意见尚不一致,如Fill-more等认为动脉血PH及Paco_2并不能准确地反映临床情况,他们所观察的39例40次急性心 Foreign studies on blood gas changes in acute myocardial infarction began in the late 1960s, early 70s after the establishment of coronary care unit, most researchers believe that the decline in arterial oxygen pressure during acute myocardial infarction can accurately reflect the severity of clinical conditions, However, the blood PH and arterial carbon dioxide partial pressure whether the changes reflect the condition is not consistent, such as Fill-more that arterial PH and Paco_2 does not accurately reflect the clinical situation, they observed in 39 cases of 40 acute heart