Impact of Different Serum Potassium Levels on Postresuscitation Heart Function and Hemodynamics in Patients with Nontraumatic Out-of-Hospital Cardiac Arrest

Table 1

Characteristics and clinical features of the patients.

	Patients who suffered nontraumatic OHCA and achieved sustained ROSC ()
	Number	%
Personal information
Age (mean ± SD) (y/o)	70.7 ± 12.4
Male	271	56.6
Possible etiologies
Infection	99	20.7
Cardiovascular disease	143	29.9
Malignancy	45	9.4
Asphyxia	114	23.8
Electrolyte problem	13	2.7
Hypovolemia	29	6.1
Other or unknown cause	36	7.5
Prehospital information
Period from scene to hospital (mean ± SD) (min)	24.8 ± 10.8
Inhospital resuscitation
Initial cardiac rhythm
Asystole	299	62.4
PEA	70	14.6
VF	110	23.0
Inhospital CPR duration (mean ± SD) (min)	16.9 ± 9.4
Outcome measurement
Survival to discharge	132	25.3

VF includes patients with pulseless VT.