Table 1 Population characteristics (108 patients)

Age

71 years (IQR: 59-77)

Sex

74 (68.5%) men

Place of cardiac arrest

95 (87.9%) in-hospital

Cardiac arrest witnessed

92 (85.1%)

Adequate prior functional status

105 (97.2%)

Cardiac arrest time^a

14 min (IQR: 6-20 min)

Cause of cardiac arrest

Septic shock 24 (22.2%)

Hypovolemic shock 10 (9.2%)

Neurogenic shock 7 (6.4%)

Cardiogenic shock 35 (32.4%)

Ventilatory failure 28 (25.9%)

Unknown 4 (3.7%)

Use of ultrasound

92 (85.1%)