Changing EMS dispatcher CPR instructions to 400 compressions before mouth-to-mouth improved bystander CPR rates
Background: To examine the impact of changing dispatcher CPR instructions (400 compressions: 2 breaths, followed by 100:2 ratio) on rates of bystander CPR and survival in adults with presumed cardiac out-of-hospital arrest (OHCA) in Melbourne, Australia. Methods: The Victorian Ambulance Cardiac Arre...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/43179 |
| _version_ | 1848756619118116864 |
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| author | Bray, Janet Deasy, C. Walsh, J. Bacon, A. Currell, A. Smith, K. |
| author_facet | Bray, Janet Deasy, C. Walsh, J. Bacon, A. Currell, A. Smith, K. |
| author_sort | Bray, Janet |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Background: To examine the impact of changing dispatcher CPR instructions (400 compressions: 2 breaths, followed by 100:2 ratio) on rates of bystander CPR and survival in adults with presumed cardiac out-of-hospital arrest (OHCA) in Melbourne, Australia. Methods: The Victorian Ambulance Cardiac Arrest Registry (VACAR) was searched for OHCA where Emergency Medical Services (EMS) attempted CPR between August 2006 and August 2009. OHCA included were: (1) patients aged ≥18 years old; (2) presumed cardiac etiology; and (3) not witnessed by EMS. Results: For the pre- and post-study periods, 1021 and 2101 OHCAs met inclusion criteria, respectively. Rates of bystander CPR increased overall (45–55%, p < 0.001) and by initial rhythm (shockable 55–70%, p < 0.001 and non-shockable 40–46%, p = 0.01). In VF/VT OHCA, there were improvements in the number of patients arriving at hospital with a return of spontaneous circulation (ROSC) (48–56%, p = 0.02) and in survival to hospital discharge (21–29%, p = 0.002), with improved outcomes restricted to patients receiving bystander CPR. After adjusting for factors associated with survival, the period of time following the change in CPR instructions was a significant predictor of survival to hospital discharge in VF/VT patients (OR 1.57, 95% CI: 1.15–2.20, p = 0.005). Conclusion: Following changes to dispatcher CPR instructions, significant increases were seen in rates of bystander CPR and improvements were seen in survival in VF/VT patients who received bystander CPR, after adjusting for factors associated with survival. |
| first_indexed | 2025-11-14T09:15:04Z |
| format | Journal Article |
| id | curtin-20.500.11937-43179 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:15:04Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-431792017-09-13T15:12:27Z Changing EMS dispatcher CPR instructions to 400 compressions before mouth-to-mouth improved bystander CPR rates Bray, Janet Deasy, C. Walsh, J. Bacon, A. Currell, A. Smith, K. Background: To examine the impact of changing dispatcher CPR instructions (400 compressions: 2 breaths, followed by 100:2 ratio) on rates of bystander CPR and survival in adults with presumed cardiac out-of-hospital arrest (OHCA) in Melbourne, Australia. Methods: The Victorian Ambulance Cardiac Arrest Registry (VACAR) was searched for OHCA where Emergency Medical Services (EMS) attempted CPR between August 2006 and August 2009. OHCA included were: (1) patients aged ≥18 years old; (2) presumed cardiac etiology; and (3) not witnessed by EMS. Results: For the pre- and post-study periods, 1021 and 2101 OHCAs met inclusion criteria, respectively. Rates of bystander CPR increased overall (45–55%, p < 0.001) and by initial rhythm (shockable 55–70%, p < 0.001 and non-shockable 40–46%, p = 0.01). In VF/VT OHCA, there were improvements in the number of patients arriving at hospital with a return of spontaneous circulation (ROSC) (48–56%, p = 0.02) and in survival to hospital discharge (21–29%, p = 0.002), with improved outcomes restricted to patients receiving bystander CPR. After adjusting for factors associated with survival, the period of time following the change in CPR instructions was a significant predictor of survival to hospital discharge in VF/VT patients (OR 1.57, 95% CI: 1.15–2.20, p = 0.005). Conclusion: Following changes to dispatcher CPR instructions, significant increases were seen in rates of bystander CPR and improvements were seen in survival in VF/VT patients who received bystander CPR, after adjusting for factors associated with survival. 2011 Journal Article http://hdl.handle.net/20.500.11937/43179 10.1016/j.resuscitation.2011.06.018 restricted |
| spellingShingle | Bray, Janet Deasy, C. Walsh, J. Bacon, A. Currell, A. Smith, K. Changing EMS dispatcher CPR instructions to 400 compressions before mouth-to-mouth improved bystander CPR rates |
| title | Changing EMS dispatcher CPR instructions to 400 compressions before mouth-to-mouth improved bystander CPR rates |
| title_full | Changing EMS dispatcher CPR instructions to 400 compressions before mouth-to-mouth improved bystander CPR rates |
| title_fullStr | Changing EMS dispatcher CPR instructions to 400 compressions before mouth-to-mouth improved bystander CPR rates |
| title_full_unstemmed | Changing EMS dispatcher CPR instructions to 400 compressions before mouth-to-mouth improved bystander CPR rates |
| title_short | Changing EMS dispatcher CPR instructions to 400 compressions before mouth-to-mouth improved bystander CPR rates |
| title_sort | changing ems dispatcher cpr instructions to 400 compressions before mouth-to-mouth improved bystander cpr rates |
| url | http://hdl.handle.net/20.500.11937/43179 |