Simulation in healthcare : journal of the Society for Simulation in Healthcare · 2008
Development and use of mechanical devices for simulation of seizure and hemorrhage in obstetrical team training.
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Daniels Kay, Parness Aaron J
Аннотация
INTRODUCTION: The leading causes of pregnancy-related death are embolism (20%), hemorrhage (17%), and pregnancy-induced hypertension (16%).The Obstetric and Mechanical Engineering Departments at Stanford University worked together to create inexpensive devices that were used in high fidelity simulations to replicate 2 of the leading causes of maternal mortality: hemorrhage and eclampsia (seizure).
METHODS: The mechanisms were designed to behave as similarly as possible to a human patient. The engineering team designed the eclampsia mechanism to jostle the mannequin's head at a frequency and randomness that matched those observed in human generalized seizures. The hemorrhage mechanism was designed to give visual and tactile cues similar to the actual physiology of a pregnant uterus. Both devices were remote controlled.
RESULTS: The hemorrhage mechanism was used in a scenario of an amniotic fluid embolism with severe postpartum hemorrhage. The final flow rate was adjustable between 525 and 600 mL/min. The trainees' rapid response and control of the postpartum hemorrhage was deemed to be a vital part of a successful maternal resuscitation. The seizure mechanism was used in a simulation of a pregnant woman in labor with evidence of severe preeclampsia. If the trainees did not recognize the need for treatment of the preeclampsia, the patient simulator had a 45- to 60-second seizure. If corrective actions were not taken, another seizure occurred.
CONCLUSIONS: The use of remote controlled mechanical devices designed to accurately replicate the visual, auditory, and tactile cues of hemorrhage and eclampsia enhanced high fidelity simulation training in obstetrical emergencies.
METHODS: The mechanisms were designed to behave as similarly as possible to a human patient. The engineering team designed the eclampsia mechanism to jostle the mannequin's head at a frequency and randomness that matched those observed in human generalized seizures. The hemorrhage mechanism was designed to give visual and tactile cues similar to the actual physiology of a pregnant uterus. Both devices were remote controlled.
RESULTS: The hemorrhage mechanism was used in a scenario of an amniotic fluid embolism with severe postpartum hemorrhage. The final flow rate was adjustable between 525 and 600 mL/min. The trainees' rapid response and control of the postpartum hemorrhage was deemed to be a vital part of a successful maternal resuscitation. The seizure mechanism was used in a simulation of a pregnant woman in labor with evidence of severe preeclampsia. If the trainees did not recognize the need for treatment of the preeclampsia, the patient simulator had a 45- to 60-second seizure. If corrective actions were not taken, another seizure occurred.
CONCLUSIONS: The use of remote controlled mechanical devices designed to accurately replicate the visual, auditory, and tactile cues of hemorrhage and eclampsia enhanced high fidelity simulation training in obstetrical emergencies.