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THE EFFECT OF A VOICE ASSIST MANIKIN (VAM) SYSTEM ON CPR QUALITY AMONG PREHOSPITAL PROVIDERS

2005; Taylor & Francis; Volume: 9; Issue: 1 Linguagem: Inglês

10.1080/10903120590891660

1545-0066

David Hostler, Henry E. Wang, Kevin Parrish, Thomas E. Platt, Guy Guimond,

Respiratory Support and Mechanisms

Numerous studies have documented poor cardiopulmonary resuscitation (CPR) performance among prehospital providers during both simulated andactual resuscitations. Previous studies have shown that a real-time, voice assist manikin (VAM) system may improve CPR performance. Objective. To determine whether VAM prompting would improve CPR performance by prehospital providers during simulated resuscitation. Methods. In this prospective, randomized, crossover design, 114 prehospital providers performed two 3-minute sessions of one-rescuer CPR on a VAM-resuscitation manikin: one round with the VAM feature turned on andone with the feature turned off. The primary outcomes were measured at 15-second intervals andincluded the fraction of correct compressions, the mean compression depth, the fraction of correct ventilations, andthe mean ventilation tidal volume. Generalized estimating equations were used to analyze the repeated measures. Results. The VAM prompting was not directly associated with correct compressions during one-rescuer CPR in a cohort of subjects naïve to the system. However, the general decay in correct compressions seen over 3 minutes was attenuated with VAM prompting. Neither the compression depth nor the decay in compression depth over time was affected by VAM prompting. In contrast, VAM prompting did affect the fraction of correct ventilations andattenuated the time-dependent decline in correct ventilations in tidal volume. Conclusions. Use of VAM did not directly improve compression or ventilation rate or quality in this cohort of prehospital providers. However, use of VAM did prevent decay of compression andventilation performance over time.