• Source: Ontario Prehospital Advanced Life Support Studies

The Ontario Prehospital Advanced Life Support (OPALS) Studies were a series of multi-center before-and-after clinical trials looking at the impact of prehospital advanced life support services. The studies have not found the addition of advanced life support services to increase survival to hospital discharge for cardiac arrest patients.




Cardiac Arrest


Phase 1, basic life support with defibrillation, January 1, 1991 to January 31, 1995
Phase 2, optimized basic life support, July 1, 1994, to March 31, 1997
Phase 3, addition of advanced life support, February 1, 1998, to June 30, 2002




References






Further reading


Stiell, I. G.; Nesbitt, L. P.; Pickett, W.; Munkley, D.; Spaite, D. W.; Banek, J.; Field, B.; Luinstra-Toohey, L.; Maloney, J. (2008). "The OPALS Major Trauma Study: Impact of advanced life-support on survival and morbidity". Canadian Medical Association Journal. 178 (9): 1141–1152. doi:10.1503/cmaj.071154. PMC 2292763. PMID 18427089.
Stiell, IG; Wells, GA; Spaite, DW; Nichol, G; O'Brien, B; Munkley, DP; Field, BJ; Lyver, MB; Luinstra, LG (1999). "The Ontario Prehospital Advanced Life Support (OPALS) study Part II: Rationale and methodology for trauma and respiratory distress patients. OPALS Study Group". Annals of Emergency Medicine. 34 (2): 256–62. doi:10.1016/S0196-0644(99)70241-6. PMID 10424933.
Stiell, Ian G.; Spaite, Daniel W.; Field, Brian; Nesbitt, Lisa P.; Munkley, Doug; Maloney, Justin; Dreyer, Jon; Toohey, Lorraine Luinstra; Campeau, Tony (2007). "Advanced Life Support for Out-of-Hospital Respiratory Distress". New England Journal of Medicine. 356 (21): 2156–64. doi:10.1056/NEJMoa060334. PMID 17522399.




External links


OPALS Studies - Emergency Medicine Research - Ottawa Hospital Research Institute
EMS Article: Is ALS Better than BLS in Trauma Care?
Measuring the Benefits of ALS in Prehospital Respiratory Care
Literature Review: Advanced Life Support for Major Trauma Patients

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