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The fundamental goal of emergency medical response in disaster is to save lives and reduce injury and permanent disability. It has been observed that urgent emergency medical care of seriously injured earthquake casualties trapped under building rubble, cannot be provided unless the victims have been extricated and transported to medical facilities by friends or relatives, or are accessible to field rescue and medical teams. Equally important is the fact that extrication of seriously injured, trapped victims by laypersons is hazardous, unless the following conditions are met: 1) the rescuer has basic knowledge of extrication, and; 2) there is early application of effective life-supporting first-aid (LSFA) and/or advanced trauma life support (ATLS) at the scene. Time is the critical factor in such an effort. In previous studies of death and dying in earthquakes, it was noted that extrication of trapped victims will be attempted by survivors. Therefore, it is suggested that citizens living in regions of high seismic risk and trained in basic search and rescue and in LSFA are the most immediate resource for early response after an earthquake. An accompanying paper addresses the issue of citizen LSFA training. This paper focuses on the basic concepts of search and rescue training for the lay public.
Expired air resuscitation is an essential part of first-aid and cannot be replaced by other measures. Because of the risk of transmitting infectious diseases, the use of devices is recommended. Three types are available—masks, tubes, and foils.
Participants:
Six masks (Air-Vita Bi-Protect, Laerdal Pocket-mask, Dräger Hivita Mask E, Rescue-Med De-vice, Resuscitator, SealEasy Resuscitation Kit), five tube instruments (Dr. Brook Airway, Dual-Aid, Goettinger Tubus, Lifeway, Sussex Valve Airway), and two foils (Ambu Life-Key, Laerdal ResusdFace Shield) were studied.
Measurements:
Inspiratory and expiratory resistance, valve leakage, ability to protect against infection transmission, and practicability (e.g., possibility of training on standard mannequins, seal) were measured and tested in the laboratory.
Results:
Only a few of the mask and tube devices had low inspiratory and expiratory resistances. Some of the one-way valves failed. There were definite risks of provoking complications (vomiting, lacerations) when using tube instruments.
Conclusions:
Devices consisting of a foil have definite advantages, and seem to be more appropriate for the use by first-aiders [first responders].