Resuscitation
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To gain more insight into decision making around the termination of resuscitation (CPR), we studied factors which influenced the time before discontinuing resuscitation, and the criteria on which those decisions were based. These criteria were compared with those of the European Resuscitation Council (ERC) and the American Heart Association (AHA). For this study, we reviewed the audiotapes of resuscitation attempts in a hospital. ⋯ The ERC and the AHA criteria were not sufficient to cover all termination decisions. We conclude that the point in time to terminate resuscitation is not always rationally chosen. Updating of the current guidelines for terminating resuscitation and training resuscitation teams to use these guidelines is recommended.
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After successful resuscitation from cardiac arrest, prolonged contractile failure has been demonstrated in animal experiments. No systematic evaluation of myocardial contractility following successful resuscitation after human cardiac arrest exists. The aim of this study was to assess left ventricular contractility following human cardiac arrest with successful resuscitation. ⋯ The four control patients had normal left ventricular contractility on arrival (z 0.0, range - 0.9-0.8) and after 24 h (z 0.7, range - 1.5-2.7). In conclusion non-invasive wall stress analysis can be applied to quantitate systolic left ventricular function, which was severely compromised in most patients within the first 24 h after successful resuscitation. Whether depression of left ventricular function is caused by cardiac arrest itself or by the underlying disease remains speculative.
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To describe the characteristics and outcome among patients with a suspected in-hospital cardiac arrest. ⋯ We conclude that, during a 14-month period at Sahlgrenska University Hospital in Göteborg, almost half the patients with a cardiac arrest in which the CPR team was called were discharged from hospital. Among survivors, 81% had a CPC score of 1 at hospital discharge. Survival seems to be closely related to the relative effectiveness of the resuscitation organisation in different parts of the hospital.
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We investigated survival of patients with out-of-hospital cardiac arrest in Ljubljana according to the 'Utstein' style. Ljubljana consists of urban, suburban and semi-rural communities which encompass an area of 1615 km2 with 397306 residents. The area is served by a single response emergency medical system and local family practitioners. ⋯ Collapse of non-cardiac etiology (117 patients) was preceded by either respiratory failure (41), politrauma (22), circulatory shock (19), cerebrovascular incident (ten), intoxication (nine), strangulation (seven), electrocution (five) or drowning (four patients). Only five patients (4.2%) survived to hospital discharge. Hospital treatment of patients after successful initial cardiopulmonary resuscitation was associated with high mortality and required considerable resources.
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Comparative Study
Out-of-hospital cardiac arrests in Amsterdam and its surrounding areas: results from the Amsterdam resuscitation study (ARREST) in 'Utstein' style.
The purpose of this study was to describe the chain of survival in Amsterdam and its surroundings and to suggest areas for improvement. To ensure accurate data, collection was made by research personnel during the resuscitation, according to the Utstein recommendations. Between June 1, 1995 and August 1, 1997 all consecutive cardiac arrests were registered. ⋯ In 151 cases the police was also alerted and arrived 5 min (median) earlier than EMS personnel. Using the OPC/CPC good functional health was observed in 50% of the survivors and moderate performance in 29%. All links in the chain of survival must be strengthened, but equipping the police with semi-automatic defibrillators may be the most useful intervention to improve survival.