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Two new studies address the controversial topic of whether respiratory support is necessary for cardiac-arrest victims. Data from animal studies have suggested that compression-only CPR may be more beneficial than compression and ventilation CPR; however, only limited data on humans are available.
In the first study, researchers analyzed data from 4902 witnessed cardiac arrests documented in Osaka prefecture in Japan from 1998 to 2003. Of these, 783 patients (16%) received conventional CPR, and 544 (11%) received cardiac-only resuscitation. After excluding long-duration cardiac arrests (>15 minutes), rates of intact neurologic survival at 1 year were significantly higher with either chest–compression-only CPR (4.3%) or regular CPR (4.1%) tha…