AIM: To describe the diurnal, weekly and seasonal rhythm among patients suffering from out of hospital cardiac arrest in Sweden. METHODS: All patients in Sweden between 1990 and 1999 participating in a National Registry covering 65% of all patients suffering from out of hospital cardiac arrest where cardiopulmonary resuscitation (CPR) was attempted. Only patients with a cardiac arrest of a cardiac aetiology and aged > 18 years were included in the survey. RESULTS: 10,868 patients fulfilled inclusion criteria. In terms of the diurnal rhythm, there was a progressive increase in the development of cardiac arrest from 06:00 h, reaching a peak at about 10:00 h. Thereafter, there was a progressive decline until 05:00 h. The diurnal rhythm was more marked among patients aged > 65 years and among patients in whom the arrest occurred outside home. There was a weekly rhythm with an increased incidence of cardiac arrest on Mondays. This was particularly evident among patients aged < 66 years and among men. A cardiac arrest occurred most frequently in January and December. This was particularly observed in the large cities. CONCLUSION: We found that out of hospital cardiac arrest of a cardiac etiology has a diurnal, weekly and seasonal rhythm occurring most frequently in the morning hours, on Mondays and in December and January. Age, sex and place of arrest influence these rhythms.
AIM: To describe the diurnal, weekly and seasonal rhythm among patients suffering from out of hospital cardiac arrest in Sweden. METHODS: All patients in Sweden between 1990 and 1999 participating in a National Registry covering 65% of all patients suffering from out of hospital cardiac arrest where cardiopulmonary resuscitation (CPR) was attempted. Only patients with a cardiac arrest of a cardiac aetiology and aged > 18 years were included in the survey. RESULTS: 10,868 patients fulfilled inclusion criteria. In terms of the diurnal rhythm, there was a progressive increase in the development of cardiac arrest from 06:00 h, reaching a peak at about 10:00 h. Thereafter, there was a progressive decline until 05:00 h. The diurnal rhythm was more marked among patients aged > 65 years and among patients in whom the arrest occurred outside home. There was a weekly rhythm with an increased incidence of cardiac arrest on Mondays. This was particularly evident among patients aged < 66 years and among men. A cardiac arrest occurred most frequently in January and December. This was particularly observed in the large cities. CONCLUSION: We found that out of hospital cardiac arrest of a cardiac etiology has a diurnal, weekly and seasonal rhythm occurring most frequently in the morning hours, on Mondays and in December and January. Age, sex and place of arrest influence these rhythms.
Authors: Pietro Palmisano; Michele Accogli; Maria Zaccaria; Alessandra Vergari; Gabriele De Luca De Masi; Luca Negro; Sergio De Blasi Journal: Int J Biometeorol Date: 2013-10-22 Impact factor: 3.787
Authors: Laurie J Morrison; Graham Nichol; Thomas D Rea; Jim Christenson; Clifton W Callaway; Shannon Stephens; Ronald G Pirrallo; Dianne L Atkins; Daniel P Davis; Ahamed H Idris; Craig Newgard Journal: Resuscitation Date: 2008-05-13 Impact factor: 5.262
Authors: Steven C Brooks; Robert H Schmicker; Thomas D Rea; Tom P Aufderheide; Daniel P Davis; Laurie J Morrison; Ritu Sahni; Gena K Sears; Denise E Griffiths; George Sopko; Scott S Emerson; Paul Dorian Journal: Resuscitation Date: 2009-11-25 Impact factor: 5.262