Table 1. Clinical Characteristics.
Age, years, mean (SD) | 59 | (16) |
Male, n | 7 | |
Initial rhythm, n | ||
Shockable (VF/VT) | 3 | |
Non-shockable (bradycardia/asystole/PEA) | 7 | |
Primary cause of CPR, n (%) | ||
Cardiac | 3 | |
Hypoxic | 6 | |
Unknown | 1 | |
Location of arrest, n | ||
OHCA | 8 | |
IHCA | 2 | |
Time to ROSC (minutes), median (IQR) | 18 | (10–23) |
Time to occurrence of PAM (hours), median (IQR) | 14 | (10–36) |
Initial treatment of PAM, n | ||
Propofol | 8 | |
Clonazepam | 3 | |
Sodium valproate | 3 | |
Levetiracetam | 2 | |
Other benzodiazepine | 2 | |
>1 drug | 4 | |
SEP N20, n | ||
Present | 5 | |
Bilaterally absent | 5 | |
EEG result, n | ||
Normal/mild encephalopathic | 0 | |
Diffuse slowing | 1 | |
Status epilepticus | 4 | |
Burst suppression | 4 | |
Low voltage/isoelectric | 0 | |
No EEG | 1 | |
Outcome, n | ||
Recovery with mild cerebral disability | 1 | |
Death | 9 | |
Treatment withdrawal, n | 9 | |
Time to treatment withdrawal (hours), median (IQR) | 48 | (38–130) |
Reason for treatment withdrawal, n | ||
Neurological examination | 4 | |
SEP | 5 | |
EEG | 5 | |
Combination | 3 |
Abbreviations: CPR, Cardiopulmonary Resuscitation; EEG, Electroencephalography; ICU, Intensive Care Unit; IHCA, In Hospital Cardiac Arrest; IQR, Interquartile Range; OHCA, Out of Hospital Cardiac Arrest; PAM, Post-anoxic Myoclonus; PEA, Pulseless Electrical Activity; ROSC, Return of Spontaneous Circulation; SD, Standard Deviation; SEP, Somatosensory Evoked Potential; VF, Ventricular Fibrillation; VT, Ventricular Tachycardia.