Resuscitation
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Over the last 15 years supraglottic airway devices (SADs), most notably the classic laryngeal mask airway (LMA) have revolutionised airway management in anaesthesia. In contrast for resuscitation, both in and outside hospital, facemask ventilation and tracheal intubation remain the mainstays of airway management. However there is evidence that both these techniques have complications and are often poorly performed by inexperienced personnel. ⋯ This pragmatic review examines recent developments in SAD technology and the relevance of this to the potential for using SADs during resuscitation. In addition to examining research directly related to resuscitation both on bench models and in patients the review also examines evidence from anaesthetic practice. SADS discussed include the classic, intubating and Proseal LMAs, the combitube, the laryngeal tube, laryngeal tube sonda mark I and II and single use laryngeal masks.
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Comparative Study
Hemodynamic and respiratory effects of negative tracheal pressure during CPR in pigs.
A new device, the intrathoracic pressure regulator (ITPR), was developed to generate continuous negative intrathoracic pressure during cardiopulmonary resuscitation (CPR) and allow for intermittent positive pressure ventilation. Use of the ITPR has been shown to increase vital organ perfusion and short-term survival rates in pigs. The purpose of this study was to investigate the hemodynamic and blood gas effects of more prolonged (15 min) use of the ITPR during CPR in a porcine model of cardiac arrest. ⋯ ITPR-CPR significantly improved hemodynamics, vital organ perfusion pressures and common carotid blood flow compared to STD-CPR in a porcine model of prolonged cardiac arrest and basic life support. The beneficial hemodynamic effects of ITPR-CPR were sustained at least 15 min without any compromise in oxygenation.
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Comparative Study
Mortality after trauma intubation without drugs in Scottish emergency departments.
Trauma patients who are intubated without anaesthetic drugs in the pre-hospital phase of care have universally poor outcomes. This study aimed to determine the mortality of trauma patients intubated without drugs in emergency departments in Scotland. ⋯ Trauma patients in Scottish emergency departments who are intubated without drugs have high mortality rates. Outcomes are not universally fatal and aggressive resuscitation efforts may be of benefit to a small number of such patients.
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Comparative Study
A reference basic life support provider course for Europe.
Good scientific evidence is scarce in relation to the effectiveness of different methods of teaching basic life support (BLS) to the general public. In order to test new courses or methods a reference course is needed as a comparative standard. ⋯ Based on the responses received, a reference BLS provider course for lay persons is suggested as a tool for research. The course duration is 3 h 15 min (excluding breaks), with 2 h 15 min practice time for the participants, 30 min for theory and 20 min for practical demonstrations by the instructor. A manual is distributed at the start of the course. The ratio of instructors to participants is one to six. The lectures are interactive between the instructor and the participants. Cardiopulmonary resuscitation (CPR) is practised on manikins in groups of six. A formal BLS scenario test may be held at the end of the course as part of a research study or if the candidates so request. It is suggested that by using this reference course during research into lay person BLS teaching, it will be easier to make comparisons between different studies.
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Emergency medical services are provided by the fire defence headquarters of the local government in Japan. There is a one-tiered EMS system. Ambulances are staffed by three crew members trained in rescue, stabilisation, transport, and advanced care of traumatic and medical emergencies. ⋯ Further development of an effective medical control system is imperative as the activities of ambulance crews become more sophisticated. A marked recent increase in the volume of emergency calls is another issue of concern. Currently, private services for transportation of non-acute or minor injury/illness have been introduced in some areas, and dispatch protocols to triage 119 calls are being developed.