酸素とCoSTR consensus on science
there were no adult (>8 years of age) human studies that addressed directly whether titrated oxygen compared with 100% oxygen during cpr affects outcome. two animal studies (loe 5) that used a fibrillatory model of cardiac arrest suggested that use of 100% oxygen during cpr and for 15 to 60 minutes after rosc results in worse neurological outcomes compared with normoxic (21% oxygen, room air) resuscitation, whereas 1 animal study (loe 5) using an asphyxial model documented that ventilation with either 100% oxygen or 21% oxygen during resuscitation did not affect outcome.
犬や猫に対する胸骨圧迫、、、、RECOVER conclusion
the optimal c:v ratio for animals that are not intubated has yet to be determined. continuous chest compressions have been shown to improve hemodynamics in cpr for intubated patients and are recommended. however, if compressions need to be stopped for ventilation to occur, there is substantial evidence from multiple human clinical studies to suggest that a c:v ratio of less than 30:2 should be avoided. for single-rescuer cpr, a c:v ratio of 30:2 is currently recommended, but continuous chest compressions should be performed for intubated patients.
電気ショックと胸骨圧迫 consensus on science
in 2 observational studies (loe 4) and secondary analyses of 2 randomized trials (loe 5), interruptions of chest compressions were common. interruption of cpr was associated with a decreased probability of conversion of vf to another rhythm (loe 5).
心肺停止でない人に心肺蘇生をして良いか? background— dispatcher-assisted cardiopulmonary resuscitation (cpr) instructions can increase bystander cpr and thereby increase the rate of survival from cardiac arrest. the risk of bystander cpr for patients not in arrest is uncertain and has implications for how assertive dispatch is in instructing cpr. we determined the frequency of dispatcher-assisted cpr for patients not in arrest and the frequency and severity of injury related to chest compressions.