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[When should we stop cardiopulmonary resuscitation in patients brought to the emergency room in cardiac arrest without pre-hospital care?].

Abstract：

PURPOSE:The decision of stopping cardiopulmonary resuscitation (CPR) in patients brought to emergency room in arrest remains a challenge. Such decision is even more difficult when someone is brought by bystanders, after an acute loss of consciousness without any out-of-hospital care. To evaluate the probability of survival of these patients we reviewed retrospectively charts in our institution, during a period of five years. METHODS:One hundred and one patients that fulfilled these characteristics came to our emergency in arrest. The time to arrival since symptoms started, cardiac rhythm at first electrocardiogram (EKG), age, gender, initial CPR success, late outcomes and previous diseases were obtained. Patients were divided in two groups regarding which cardiac rhythms they had at first EKG: A-patients arriving in asystole; and VF-patients arriving in ventricular fibrillation. To evaluate time to arrival, we arbitrarily choose 15 min as a reference point. RESULTS:In these 101 subjects the mean age was 62 +/- 13.7 years and 63 (62.3%) were men. Previous heart disease was documented in 74 [dilated cardiomyopathy in 22 (21.7%), coronary heart disease in 41 (40.6%), arterial hypertension in 25 (24.7%) and others in 6 (5.6%)]. In 66 episodes we were sure of the time patients spent before arrival (mean 2.5 +/- 11 min). Only in 63 subjects we had no doubts about the rhythm at entrance: VF in 37 (58.7%), A in 22 (34.9%) and an accelerated idioventricular rhythm (AIR) in four (6.3%). Time to arrival was 18.6 +/- 10.6 in VF vs 32.5 +/- 11.7 min in A (p = 0.012). Fourteen (13.8%) subjects resumed a supraventricular rhythm with systolic pressure > or = 90 mmHg after CPR and all of them were in VF (13) or AIR (one). Nine patients (8.9%) evolved in coma. Only five (4.9%) were discharged from the hospital without any neurological disturbance and their time to arrival ranged from one to 15 (9 +/- 5.8) min. CONCLUSION:Delayed arrival to the emergency room (> 15 min) associated with asystole were predictors of unsuccessful CPR, and both data are helpful in deciding when to stop CPR in subjects arriving at the emergency department with no out-of-hospital care.

journal_name

Arq Bras Cardiol

journal_title

Arquivos brasileiros de cardiologia

authors

César LA,Pamplona D,Ferreira JF,de Brito Júnior F,Uchida AH,Moretti MA,Pfeferman E,Amato RV,da Luz PL,Bellotti G,Pileggi F

subject

Has Abstract

pub_date

1996-11-01 00:00:00

pages

339-42

issue

eissn

0066-782X

issn

1678-4170

journal_volume

pub_type

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[When should we stop cardiopulmonary resuscitation in patients brought to the emergency room in cardiac arrest without pre-hospital care?].