AIM: To describe the sequences of @entity943 , number of shocks delivered and the number of failures in a consecutive series of @entity1 with out-of-hospital @entity1167 attended by our emergency medical service (EMS) and in whom @entity358 ( @entity358 ) was initiated and in whom @entity4610 ( @entity4610 ) were used. @entity1 : All @entity1 with out-of-hospital @entity1167 attended by the EMS and in whom @entity4610 were used. Time for inclusion in the study: January 1st, 1987 to December 31st, 1992. RESULTS: In all there were 1781 out of hospital cardiac arrests during the study period. Among them @entity4610 were used in 383 cases (22%). The total number of interpreted rhythms delivered in these @entity1 was 2719. Among all rhythm sequences coarse @entity2224 ( @entity2224 ) was found on 375 occasions (14%); fine @entity2224 on 107 occasions (4%) and @entity1165 ( @entity1165 ) on 12 occasions (0.4%). In ten cases with coarse @entity2224 (nine @entity1 ) the AED did not advise a shock (2.7%). In five of those nine @entity1 a @entity1 error was interpreted as the explanation and in four there was a possible technical error. In these four @entity1 defibrillation was delayed by 33-43 s, respectively. Among the 2225 rhythm sequences not judged as @entity2224 / @entity1165 the AED advised a shock on one occasion (0.04%). CONCLUSION: Among @entity1 with coarse @entity2224 AED gave inaccurate instructions in 2.7%. However, the majority of the failures were judged to be caused by @entity1 errors.

Experience with the use of XXXX in out of hospital @entity1167 .

@entity1 :: ('9606', 'Species') :: ['human', 'patients', 'PATIENTS'] @entity1165 :: ('MESH:D017180', 'Disease') :: ['VT', 'ventricular tachycardia'] @entity4610 :: ('MESH:D009886', 'Disease') :: ['automated external defibrillators', 'AEDs'] @entity358 :: ('MESH:D008171', 'Disease') :: ['CPR', 'cardio-pulmonary resuscitation'] @entity2224 :: ('MESH:D014693', 'Disease') :: ['VF', 'ventricular fibrillation'] @entity1167 :: ('MESH:D006323', 'Disease') :: ['cardiac arrest'] @entity943 :: ('MESH:D001145', 'Disease') :: ['arrhythmias']
@entity4610 :: (MESH:D009886,Disease) :: ['automated external defibrillators']
