Table 2

Individual evaluation of false-positive cases using photoplethysmography with a smart watch and the palpation method

ROSC case numberManual checkSmart watchVital sign with HR regularity
CarotidForeheadWrist
ROSC 1NoYesYesYesBP 60/40, HR 98, regular rhythm
ROSC 2NoYesYesNoBP 64/41, HR 86, irregular rhythm
ROSC 3YesYesYesNoBP 72/46, HR 71, irregular rhythm
ROSC 4NoYesYesYesBP 69/41, HR 80, regular rhythm
ROSC 5YesYesYesYesBP 70/40, HR 56, regular rhythm
ROSC 6YesYesYesYesBP 118/69, HR 103, irregular rhythm
ROSC 7YesYesYesYesBP 102/55, HR 121, regular rhythm
ROSC 8YesYesYesYesBP 100/70, HR 62, regular rhythm
ROSC 9YesYesYesNoBP 107/80, HR 72, irregular rhythm
ROSC 10YesYesYesYesBP 172/83, HR 102, regular rhythm
ROSC 11YesYesYesYesBP 140/80, HR 55, regular rhythm
ROSC 12YesYesNoYesBP 142/72, HR 110, irregular rhythm
ROSC 13YesYesYesYesBP 104/81, HR 65, regular rhythm
ROSC 14YesYesYesYesBP 90/50, HR 58, regular rhythm
  • BP, blood pressure; HR, heart rate;┬áROSC, return of spontaneous circulation.