CPR's Lifesaving Powers Decline as Minutes Pass

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CPR's Lifesaving Powers Decline as Minutes Pass
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CPR can save lives, but its ability to restore heart function goes from slim to none in a shockingly short time, a new study finds.

while receiving CPR declines from 22% after one minute of chest compressions to less than 1% after 39 minutes of compressions, researchers report Feb.

In the study, Okubo's team measured CPR duration for nearly 350,000 U.S. adults who had an in-hospital cardiac arrest between 2000 and 2021, using the largest dataset of such cases available in the world. They found that two-thirds of patients responded to CPR within an average of seven minutes, while 33% failed to re-establish a heartbeat after an average 20 minutes of CPR.“Most termination of resuscitation occurred before the time point of traditional medical futility,” or the point at which survival odds are less than 1%, the researchers noted in a journal news release.

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