A Retrospective Study: Quick Scoring of Symptoms to Estimate the Risk of Cardiac Arrest in the Emergency Department

Table 4

The interval from prodromal symptoms to CA.

Prodromal symptoms	Time from symptoms to cardiac arrest			N of CA	Discharge survival
	14 days to 24 hours	2 hours to 24 hours	≤2 hours
Dyspnea	14	14	6	48 (32%)	9 (18.8%)
Chest pain	2	2	0	5 (3.33%)	0 (0%)
Abdominal pain	0	0	0	4 (2.67%)	0 (0%)
Backache	0	0	2	4 (2.67%)	2 (50%)
Syncope	3	1	0	5 (3.33%)	3 (60%)
Cold sweat	4	7	2	13 (8.67%)	0 (0%)
Palpitation	2	0	2	4 (2.67%)	1 (25%)
Others				32 (21.33%)	13 (40.6%)
Nonsymptoms				34 (22.67%)	6 (17.6%)