The Central Denmark Region covers a mixed urban and rural area of approximately 13000 km2with a population of 1.27 million. The overall population density is 97.7 inhabitants pr. km2.
The standard EU emergency telephone number (1-1-2) covers all Denmark and there is an Emergency Medical Dispatch Centre in each of the five Danish regions. Emergency Medical Dispatch is criteria based.
The Central Denmark Region has a two-tiered EMS system. The first tier consists of 64 ground ambulances staffed with Emergency Medical Technicians (EMTs) on an intermediate or paramedic level (EMT-I / EMT-P). EMTs in The Central Denmark Region do not perform PHETI, nor do they use supraglottic airway devices (SADs).
The second tier consists of ten pre-hospital critical care teams staffed with an anaesthesiologist (with at least 4½ years’ experience in anaesthesia) and a specially trained EMT. Nine of the pre-hospital critical care teams are deployed by rapid response vehicles; the tenth team staffs a HEMS helicopter.
In the most rural parts of the region there are three rapid response vehicles staffed with an EMT and an anaesthetic nurse. The anaesthetic nurses do not use SADs nor do they perform Rapid Sequence Intubation (RSI) or other forms of drug-assisted PHAAM in the pre-hospital setting. These rapid response vehicles were not part of this study.
The pre-hospital critical care teams covered by this study employ approximately 90 anaesthesiologists as part time pre-hospital physicians. There are no full-time pre-hospital critical care physicians in the region – all physicians primarily work in one of the five regional emergency hospitals or at the university hospital. All pre-hospital critical care physicians have in-hospital emergency anaesthesia and advanced airway management both in- and outside the operating theatre as part of their daily work. Intensive care is part of the Danish anaesthesiological curriculum.
All pre-hospital critical care teams carry the same equipment for airway management. This includes equipment for bag-mask-ventilation (BMV), endotracheal tubes and standard laryngoscopes with Macintosh blades (and Miller blades for infants and neonates), intubation stylets, AirTraq™ laryngoscopes, Gum-Elastic Bougies, standard laryngeal masks (LMAs), intubating laryngeal masks (ILMAs) and equipment for establishing a surgical airway. All units are equipped with a capnograph and an automated ventilator. The pre-hospital critical care teams carry a standardised set-up of medications including thiopental, propofol, midazolam and s-ketamine for anaesthesia and sedation, alfentanil, fentanyl and morphine for analgesia and suxametonium and rocuronium as neuro-muscular blocking agents (NMBAs). Lidocain is available for topical anaesthesia.
Our system has no airway management protocols or standard operating procedures (SOPs) regarding PHAAM or pre-hospital RSI [22 (link)] and the physicians use the available drugs and equipment at their own discretion.
The pre-hospital critical care anaesthesiologists in our region have an average of 17.6 years of experience in anaesthesia and on average 7.2 years of experience with pre-hospital critical care. The average pre-hospital critical care physician performs 14.5 endotracheal intubations per month, 1 of them in the pre-hospital setting.
We have previously reported details of the pre-hospital critical care physicians’ education, training, level of experience and equipment-awareness in our region [22 (link)].
We collected data from February 1st 2011 until November 1st 2012.
Follow-up data regarding 30-days mortality were collected in January and February 2013.
The standard EU emergency telephone number (1-1-2) covers all Denmark and there is an Emergency Medical Dispatch Centre in each of the five Danish regions. Emergency Medical Dispatch is criteria based.
The Central Denmark Region has a two-tiered EMS system. The first tier consists of 64 ground ambulances staffed with Emergency Medical Technicians (EMTs) on an intermediate or paramedic level (EMT-I / EMT-P). EMTs in The Central Denmark Region do not perform PHETI, nor do they use supraglottic airway devices (SADs).
The second tier consists of ten pre-hospital critical care teams staffed with an anaesthesiologist (with at least 4½ years’ experience in anaesthesia) and a specially trained EMT. Nine of the pre-hospital critical care teams are deployed by rapid response vehicles; the tenth team staffs a HEMS helicopter.
In the most rural parts of the region there are three rapid response vehicles staffed with an EMT and an anaesthetic nurse. The anaesthetic nurses do not use SADs nor do they perform Rapid Sequence Intubation (RSI) or other forms of drug-assisted PHAAM in the pre-hospital setting. These rapid response vehicles were not part of this study.
The pre-hospital critical care teams covered by this study employ approximately 90 anaesthesiologists as part time pre-hospital physicians. There are no full-time pre-hospital critical care physicians in the region – all physicians primarily work in one of the five regional emergency hospitals or at the university hospital. All pre-hospital critical care physicians have in-hospital emergency anaesthesia and advanced airway management both in- and outside the operating theatre as part of their daily work. Intensive care is part of the Danish anaesthesiological curriculum.
All pre-hospital critical care teams carry the same equipment for airway management. This includes equipment for bag-mask-ventilation (BMV), endotracheal tubes and standard laryngoscopes with Macintosh blades (and Miller blades for infants and neonates), intubation stylets, AirTraq™ laryngoscopes, Gum-Elastic Bougies, standard laryngeal masks (LMAs), intubating laryngeal masks (ILMAs) and equipment for establishing a surgical airway. All units are equipped with a capnograph and an automated ventilator. The pre-hospital critical care teams carry a standardised set-up of medications including thiopental, propofol, midazolam and s-ketamine for anaesthesia and sedation, alfentanil, fentanyl and morphine for analgesia and suxametonium and rocuronium as neuro-muscular blocking agents (NMBAs). Lidocain is available for topical anaesthesia.
Our system has no airway management protocols or standard operating procedures (SOPs) regarding PHAAM or pre-hospital RSI [22 (link)] and the physicians use the available drugs and equipment at their own discretion.
The pre-hospital critical care anaesthesiologists in our region have an average of 17.6 years of experience in anaesthesia and on average 7.2 years of experience with pre-hospital critical care. The average pre-hospital critical care physician performs 14.5 endotracheal intubations per month, 1 of them in the pre-hospital setting.
We have previously reported details of the pre-hospital critical care physicians’ education, training, level of experience and equipment-awareness in our region [22 (link)].
We collected data from February 1st 2011 until November 1st 2012.
Follow-up data regarding 30-days mortality were collected in January and February 2013.