PMID: 9547842Apr 21, 1998Paper

A rule for early outcome classification of out-of-hospital cardiac arrest patients presenting with ventricular fibrillation

Resuscitation
K G MonsieursL L Bossaert

Abstract

The aim of the study was to develop a scoring system for outcome classification at the start of prehospital first tier resuscitation for patients with cardiac arrest from ventricular fibrillation (VF). We studied a consecutive sample of 100 out-of-hospital cardiac arrest patients, presenting with VF of presumed cardiac etiology on arrival of the first tier (in a two-tiered urban Emergency Medical Services system). The number of patients discharged was 29 ('survivors') and 71 died ('non-survivors'). The electrocardiography (ECG) tracings recorded during resuscitation using a semi-automatic defibrillator were retrospectively analysed. For each patient, VF amplitude in mV (VF_a) and the number of base-line crossings per second (VF_blc) were calculated. Fisher's linear discriminant analysis was applied to discriminate between survivors and non-survivors using the variables VF_a, VF_blc and age. Patients were classed as potential survivors or non-survivors using a survival index = 0.6*(VF_a) + 0.4*(VF_blc)-4.0. If for a given patient the survival index is < 0, he is classified in the non-survivor group, if the survival index is > 0, he is classified in the survivor group. Using this index 79% of the survivors and 70% of the non-surv...Continue Reading

References

Jul 1, 1991·Annals of Emergency Medicine·C G BrownR Dzwonczyk
Jan 1, 1990·Intensive Care Medicine·M KentschG Mueller-Esch
Nov 1, 1989·Annals of Emergency Medicine·C G BrownR L Hamlin
Mar 1, 1988·Journal of the American College of Cardiology·R O CumminsD D Brown
Sep 15, 1988·The New England Journal of Medicine·W D WeaverA P Hallstrom
Sep 1, 1987·Critical Care Medicine·E EdgrenG Ronquist
Jan 1, 1985·Annals of Internal Medicine·W D WeaverM K Copass
Jun 9, 1983·The New England Journal of Medicine·W T LongstrethT S Inui
Apr 1, 1995·Stroke; a Journal of Cerebral Circulation·K BerekF Aichner

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Citations

Jul 5, 2001·Current Opinion in Critical Care·A AmannU Achleitner
Jun 2, 2005·Current Opinion in Critical Care·Clifton W Callaway, James J Menegazzi
Oct 3, 2006·Current Opinion in Anaesthesiology·L Bossaert
Mar 20, 2004·Expert Review of Cardiovascular Therapy·Trygve EftestølPetter Andreas Steen
Aug 14, 2020·Journal of the American Heart Association·Richard T CarrickDavid M Kent

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