PMC3299150_01
The number of cases who underwent CPR and cases with OHCPA
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F1
We also experienced 910 patients who underwent bystander CPR, 884 of them (97.1%) were confirmed as OHCPA by organized EMS and 26 (2.9%) were confirmed as non-OHCPA by organized EMS [Figure 1].
The duration of bystander CPR and complication; CC means chest compression and MMV means mouth-to-mouth ventilation, and foot note shows detail of cases with complications
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F2
The mean duration of bystander CPR was 6.5 minutes (ranging from 1 to 26 minutes) with 10 cases (38.5%) over 7 minutes and 3 (11.5%) over 10 minutes [Figure 2]. In the remaining case, we found chest pain upon inspiration, indicating a minor rib fracture or muscular damage; this was easily controlled with analgesics [Figure 2].