The earliest methods of home monitoring were limited to periodic nurse telephone support, with or without other limited forms of data transmission such as cardiac rhythm monitoring.
Telephone-based care has been used successfully, particularly in congestive heart failure (CHF), with a demonstrated 50% reduction in hospital readmissions through the use of nurse telephone support with remote cardiac rhythm monitoring[ 14].
Transient changes in afterload may have influenced the extent of ischemic cardiac damage but may not have been detected by our single measurement, while a lack of continuous cardiac rhythm monitoring did not allow us to determine whether arrhythmia was in fact the major cause of death.
EMS providers collected prehospital information in the standardized Utstein style, including age, sex, location, witnessed arrest, bystander CPR, call response interval, initial cardiac rhythms monitored by EMS providers, and shock deliveries by EMS providers.
Heart rate and cardiac rhythm were monitored continuously.
Cardiac rhythm was monitored via a standard lead II electrocardiogram.
Cardiac rhythm was monitored with the electrocardiogram lead I and atrial and ventricular electrograms.
Heart rate and cardiac rhythm were monitored by electrocardiography.
Cardiac rhythm was monitored with an electrocardiogram (Mennen Medical, Envoy, Papapostolou, Athens, Greece).
Cardiac rhythm was monitored using paired electrocardiogram (ECG) electrodes – one on the right scapula and one on the left lower rib.
Main outcome measures: Cardiac rhythm when first monitored, response to defibrillation assessed by survival to reach hospital alive and survival to hospital discharge.
