Defining electromechanical dissociation: morphologic presentation

Utility of prehospital electrocardiogram characteristics as prognostic markers in out-of-hospital pulseless electrical activity arrests

“…They found that patients with PEA OHCA with higher initial HRs and narrower QRS intervals were more likely to survive to hospital admission 3. In contrast to Stueven et al ,1 who demonstrated that patients in PEA arrest with narrow QRS intervals had a higher rate of survival to discharge compared with patients with wide QRS intervals, we did not find such correlation in our study 1…”

Utility of prehospital electrocardiogram characteristics as prognostic markers in out-of-hospital pulseless electrical activity arrests

“…They found that patients with PEA OHCA with higher initial HRs and narrower QRS intervals were more likely to survive to hospital admission 3. In contrast to Stueven et al ,1 who demonstrated that patients in PEA arrest with narrow QRS intervals had a higher rate of survival to discharge compared with patients with wide QRS intervals, we did not find such correlation in our study 1…”

ECG changes during resuscitation of patients with initial pulseless electrical activity are associated with return of spontaneous circulation

“…In three OHCA studies examining PEA characteristics, of which one was published more than 25 years ago and two more recently, similar initial heart rates but narrower initial QRS widths were found when compared to the results in our study [10][11][12][13]. None of these studies have examined the dynamics of the ECG-characteristics during ongoing ALS.…”

“…Previous studies on out of hospital cardiac arrest (OHCA) have reported conflicting results regarding the association between initial heart rate and QRS width and subsequent survival. While some studies report increased survival with higher heart rates and narrower QRS complexes, others report no such association [10][11][12][13]. An animal study on post-defibrillation PEA demonstrated increased likelihood of return of spontaneous circulation (ROSC) with higher initial heart rates and narrower QRS complexes [14].…”

The effect of intravenous adrenaline on electrocardiographic changes during resuscitation in patients with initial pulseless electrical activity in out of hospital cardiac arrest

“…This is in line with other studies of OHCA that essentially have found a higher prevalence of normal initial ECG characteristics in survivors presenting with PEA. [21][22][23] The mainly broad complexes without detectable atrial activity seen in this study were most likely of ventricular origin. Subendocardial Purkinje cells have been implicated in arrhythmogenesis after myocardial infarction, and has been observed to function as pacemakers in the damaged heart in dogs.…”

Utility of prehospital electrocardiogram characteristics as prognostic markers in out-of-hospital pulseless electrical activity arrests

“…They found that patients with PEA OHCA with higher initial HRs and narrower QRS intervals were more likely to survive to hospital admission 3. In contrast to Stueven et al ,1 who demonstrated that patients in PEA arrest with narrow QRS intervals had a higher rate of survival to discharge compared with patients with wide QRS intervals, we did not find such correlation in our study 1…”

ECG changes during resuscitation of patients with initial pulseless electrical activity are associated with return of spontaneous circulation

“…In three OHCA studies examining PEA characteristics, of which one was published more than 25 years ago and two more recently, similar initial heart rates but narrower initial QRS widths were found when compared to the results in our study [10][11][12][13]. None of these studies have examined the dynamics of the ECG-characteristics during ongoing ALS.…”

“…Previous studies on out of hospital cardiac arrest (OHCA) have reported conflicting results regarding the association between initial heart rate and QRS width and subsequent survival. While some studies report increased survival with higher heart rates and narrower QRS complexes, others report no such association [10][11][12][13]. An animal study on post-defibrillation PEA demonstrated increased likelihood of return of spontaneous circulation (ROSC) with higher initial heart rates and narrower QRS complexes [14].…”

The effect of intravenous adrenaline on electrocardiographic changes during resuscitation in patients with initial pulseless electrical activity in out of hospital cardiac arrest

“…This is in line with other studies of OHCA that essentially have found a higher prevalence of normal initial ECG characteristics in survivors presenting with PEA. [21][22][23] The mainly broad complexes without detectable atrial activity seen in this study were most likely of ventricular origin. Subendocardial Purkinje cells have been implicated in arrhythmogenesis after myocardial infarction, and has been observed to function as pacemakers in the damaged heart in dogs.…”

Utility of prehospital electrocardiogram characteristics as prognostic markers in out-of-hospital pulseless electrical activity arrests

“…They found that patients with PEA OHCA with higher initial HRs and narrower QRS intervals were more likely to survive to hospital admission 3. In contrast to Stueven et al ,1 who demonstrated that patients in PEA arrest with narrow QRS intervals had a higher rate of survival to discharge compared with patients with wide QRS intervals, we did not find such correlation in our study 1…”

ECG changes during resuscitation of patients with initial pulseless electrical activity are associated with return of spontaneous circulation

“…In three OHCA studies examining PEA characteristics, of which one was published more than 25 years ago and two more recently, similar initial heart rates but narrower initial QRS widths were found when compared to the results in our study [10][11][12][13]. None of these studies have examined the dynamics of the ECG-characteristics during ongoing ALS.…”

“…Previous studies on out of hospital cardiac arrest (OHCA) have reported conflicting results regarding the association between initial heart rate and QRS width and subsequent survival. While some studies report increased survival with higher heart rates and narrower QRS complexes, others report no such association [10][11][12][13]. An animal study on post-defibrillation PEA demonstrated increased likelihood of return of spontaneous circulation (ROSC) with higher initial heart rates and narrower QRS complexes [14].…”

The effect of intravenous adrenaline on electrocardiographic changes during resuscitation in patients with initial pulseless electrical activity in out of hospital cardiac arrest

“…This is in line with other studies of OHCA that essentially have found a higher prevalence of normal initial ECG characteristics in survivors presenting with PEA. [21][22][23] The mainly broad complexes without detectable atrial activity seen in this study were most likely of ventricular origin. Subendocardial Purkinje cells have been implicated in arrhythmogenesis after myocardial infarction, and has been observed to function as pacemakers in the damaged heart in dogs.…”