You are viewing the site in preview mode

Skip to main content

Table 1 Characteristics of OHCA patients according to the rhythm changes during CPR

From: Rhythm conversion in out-of-hospital cardiac arrest and influence on the return of spontaneous circulation at the hospital arrival: a 10-year retrospective study in Croatia

 

Sustained

non-shockable rhythm

Sustained

shockable

rhythm

Converted from

non-shockable to

shockable rhythm

p

χ²

Cases

1709

595

487

-

-

Median age (IQR)

69.0 (58.0–78.0)

63.0 (55.0–73.0)

67.0 (57.0–77.0)

< 0.001

38.7

Men (%)

1134 (66.43)

472 (79.33)

361 (74.13)

< 0.001

39.0

CA characteristics, and ALS

     

Medical cause (vs. non-medical)

1554 (90.93)

574 (96.47)

464 (95.28)

< 0.001

25.6

Public CA (%)

393 (27.77)

247 (49.30)

143 (32.35))

< 0.001

83.5

Witnessed (%)

1164 (68.11)

500 (84.03)

370 (75.98)

< 0.001

59.5

Bystander CPR (%)

459 (26.86)

257 (43.19)

143 (29.36)

< 0.001

65.5

CA recognized* (%)

606 (35.46)

296 (49.75)

190 (39.01)

< 0.001

32.1

DA-CPR* (%)

448 (26.21)

250 (52.02)

155 (31.83)

< 0.001

43.0

ET (%)

189 (11.06)

50 (8.40)

58 (11.91)

0.118

4.27

i-GEL (%)

1465 (85.72)

482 (81.01)

419 (83.04)

0.016

8.33

Adrenaline total dose, mg

5.0 (2.0)

5.0 (4.0)

6.0 (4.0)

< 0.001

59.8

Mechanical compression machine (%)

502 (29.37)

167 (28.07)

203 (41.68)

< 0.001

30.3

Comorbidities (%)

     

CVD*

737 (43.12)

245 (41.18)

228 (46.82)

0.168

3.56

Diabetes mellitus

208 (12.17)

38 (6.39)

59 (12.11)

< 0.001

16.0

Malignancy

110 (6.44)

19 (3.19)

21 (4.31)

0.005

10.4

Renal disease

42 (2.46)

7 (1.18)

8 (1.64)

0.129

4.09

Pulmonary

124 (7.26)

19 (3.19)

18 (3.70)

< 0.001

18.1

Psychiatric disease

116 (6.79)

17 (2.86)

12 (2.46)

< 0.001

22.8

Neurological

114 (6.67)

16 (2.69)

25 (5.13)

0.001

13.5

Median time intervals, min (IQR)

     

Bystander reaction interval (n = 1222)

2.0 (1.0–4.0)

2.0 (1.0–3.0)

2.0 (1.0–4.0)

0.005

10.6

EMS Response interval (n = 2101)

9.0 (7.0–13.0)

8.0 (6.0-10.3)

9.0 (7.0–12.0)

< 0.001

49.6

ROSC at hospital admission (%)

257 (15.04)

298 (50.01)

149 (30.60)

< 0.001

296.0

  1. *ALS – advanced life support
  2. * CA – cardiac arrest
  3. *CPR – cardiopulmonary resuscitation
  4. *EMS – emergency medical service
  5. *ET – endotracheal intubation
  6. *IQR – interquartile range
  7. *ROSC - return of spontaneous circulation
  8. *witnessed CA – included all bystander witnessed cases as well as, CA witnessed by EMS
  9. *CA recognized – recognition of CA via dispatcher
  10. *DA-CPR – dispatcher assisted CPR
  11. *CVD – cardiovascular disease
  12. *CA recognition, DA-CPR, and EMS response intervals (n = 2101) were only observed for cases where CA occurred before the initial emergency call
  13. *Bystander reaction interval was observed for layperson witnessed CA, and occurred before the initial emergency call (n = 1222)
  14. *Public CA was observed for cases that occurred before the EMS arrival
  15. *I-gel - a second generation supraglottic airway device
Back to article page

International Journal of Emergency Medicine

ISSN: 1865-1380

Contact us