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Jansen G, Latka E, Deicke M, Fischer D, Gretenkort P, Hoyer A, Keller Y, Kobiella A, Ristau P, Seewald S, Strickmann B, Thies KC, Johanning K, Tiesmeier J. [Prehospital postcardiac-arrest-sedation and -care in the Federal Republic of Germany-a web-based survey of emergency physicians]. Med Klin Intensivmed Notfmed 2024; 119:398-407. [PMID: 37682284 DOI: 10.1007/s00063-023-01056-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/12/2023] [Accepted: 07/24/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND This study evaluates the implementation of postcardiac-arrest-sedation (PCAS) and -care (PRC) by prehospital emergency physicians in Germany. MATERIALS AND METHODS Analysis of a web-based survey from October to November 2022. Questions were asked about implementation, medications used, complications, motivation for implementing or not implementing PCAS, and measures and target parameters of PRC. RESULTS A total of 500 emergency physicians participated in the survey. In all, 73.4% stated that they regularly performed PCAS (hypnotics: 84.7%; analgesics: 71.1%; relaxants: 29.7%). Indications were pressing against the respirator (88.3%), analgesia (74.1%), synchronization to respirator (59.5%), and change of airway device (52.6%). Reasons for not performing PCAS (26.6%) included unconscious patients (73.7%); concern about hypotension (31.6%), re-arrest (26.3%), and worsening neurological assessment (22.5%). Complications of PCAS were observed by 19.3% of participants (acute hypotension [74.6%]); (re-arrest [32.4%]). In addition to baseline monitoring, PRC included 12-lead-electrocardiogram (96.6%); capnography (91.6%); catecholamine therapy (77.6%); focused echocardiography (20.6%), lung ultrasound (12.0%) and abdominal ultrasound (5.6%); induction of hypothermia (13.6%) and blood gas analysis (7.4%). An etCO2 of 35-45 mm Hg was targeted by 40.6%, while 9.0% of participants targeted an SpO2 of 94-98% and 19.2% of participants targeted a systolic blood pressure of ≥ 100 mm Hg. CONCLUSIONS Prehospital PRC in Germany is heterogeneous and deviations from its target parameters are frequent. PCAS is frequent and associated with relevant complications. The development of preclinical care algorithms for PCAS and PRC within preclinical care seems urgently needed.
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Affiliation(s)
- G Jansen
- Universitätsklinikum für Anästhesiologie, Intensiv- und Notfallmedizin der Ruhr-Universität Bochum, Johannes Wesling Klinikum Minden, Minden, Deutschland.
- Universität Bielefeld, Medizinische Fakultät OWL, Universitätsstr. 25, 33615, Bielefeld, Deutschland.
- Fachbereich Medizin und Rettungswesen, Studieninstitut Westfalen-Lippe, Bielefeld, Deutschland.
| | - E Latka
- Fachbereich Medizin und Rettungswesen, Studieninstitut Westfalen-Lippe, Bielefeld, Deutschland
| | - M Deicke
- Ärztliche Leitung Rettungsdienst Landkreis Osnabrück, Osnabrück, Deutschland
| | - D Fischer
- Ärztliche Leitung Rettungsdienst Kreis Lippe, Detmold, Deutschland
| | - P Gretenkort
- Simulations- und Notfallakademie am Helios Klinikum Krefeld, Helios Klinikum Krefeld, Krefeld, Deutschland
| | - A Hoyer
- Biostatistik und Medizinische Biometrie, Medizinische Fakultät OWL, Universität Bielefeld, Bielefeld, Deutschland
| | - Y Keller
- Integrierte Regionalleitstelle Dresden, Geschäftsbereich Ordnung und Sicherheit, Brand- und Katastrophenschutzamt, Landeshauptstadt Dresden, Dresden, Deutschland
| | - A Kobiella
- Ärztliche Leitung Rettungsdienst Kreis Gütersloh, Gütersloh, Deutschland
| | - P Ristau
- Institut für Rettungs- und Notfallmedizin (IRuN), Universitätsklinikum Schleswig-Holstein, Kiel, Deutschland
| | - S Seewald
- Institut für Rettungs- und Notfallmedizin (IRuN), Universitätsklinikum Schleswig-Holstein, Kiel, Deutschland
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein - Campus Kiel, Kiel, Deutschland
| | - B Strickmann
- Ärztliche Leitung Rettungsdienst Kreis Gütersloh, Gütersloh, Deutschland
| | - K C Thies
- Universitätsklinik für Anästhesiologie, Intensiv‑, Notfallmedizin, Transfusionsmedizin und Schmerztherapie, Universitätsklinikum OWL der Universität Bielefeld, Evangelisches Klinikum Bielefeld, Bielefeld, Deutschland
| | - K Johanning
- Klinik für Anästhesiologie, operative Intensivmedizin, Notfallmedizin und Schmerztherapie, Universitätsklinikum OWL der Universität Bielefeld - Campus Klinikum Bielefeld, Bielefeld, Deutschland
| | - J Tiesmeier
- Institut für Anästhesiologie, Intensiv- und Notfallmedizin, MKK - Krankenhaus Lübbecke, Campus OWL der Ruhr-Universität Bochum, Lübbecke, Deutschland
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Jansen G, Latka E, Bernhard M, Deicke M, Fischer D, Hoyer A, Keller Y, Kobiella A, Strickmann B, Strototte LM, Thies KC, Johanning K. Prehospital anesthesia in postcardiac arrest patients: a multicenter retrospective cohort study. Eur J Med Res 2024; 29:263. [PMID: 38698492 PMCID: PMC11067130 DOI: 10.1186/s40001-024-01864-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 04/24/2024] [Indexed: 05/05/2024] Open
Abstract
BACKGROUND Currently, the data regarding the impact of prehospital postcardiac arrest anesthesia on target hemodynamic and ventilatory parameters of early postresuscitation care and recommendations on its implementation are rare. The present study examines the incidence and impact of prehospital postcardiac arrest anesthesia on hemodynamic and ventilatory target parameters of postresuscitation care. METHODS In this multicentre observational study between 2019 and 2021 unconscious adult patients after out-of-hospital-cardiac arrest with the presence of a return-of-spontaneous circulation until hospital admission were included. Primary endpoint was the application of postarrest anesthesia. Secondary endpoints included the medication group used, predisposing factors to its implementation, and its influence on achieving target parameters of postresuscitation care (systolic blood pressure: ≥ 100 mmHg, etCO2:35-45 mmHg, SpO2: 94-98%) at hospital handover. RESULTS During the study period 2,335 out-of-hospital resuscitations out of 391,305 prehospital emergency operations (incidence: 0.58%; 95% CI 0.54-0.63) were observed with a return of spontaneous circulation to hospital admission in 706 patients (30.7%; 95% CI 28.8-32.6; female: 34.3%; age:68.3 ± 14.2 years). Postcardiac arrest anesthesia was performed in 482 patients (68.3%; 95% CI 64.7-71.7) with application of hypnotics in 93.4% (n = 451), analgesics in 53.7% (n = 259) and relaxants in 45.6% (n = 220). Factors influencing postcardiac arrest sedation were emergency care by an anesthetist (odds ratio: 2.10; 95% CI 1.34-3.30; P < 0.001) and treatment-free interval ≤ 5 min (odds ratio: 1.59; 95% CI 1.01-2.49; P = 0.04). Although there was no evidence of the impact of performing postcardiac arrest anesthesia on achieving a systolic blood pressure ≥ 100 mmHg at the end of operation (odds ratio: 1.14; 95% CI 0.78-1.68; P = 0.48), patients with postcardiac arrest anesthesia were significantly more likely to achieve the recommended ventilation (odds ratio: 1.59; 95% CI 1.06-2.40; P = 0.02) and oxygenation (odds ratio:1.56; 95% CI 1.04-2.35; P = 0.03) targets. Comparing the substance groups, the use of hypnotics significantly more often enabled the target values for etCO2 to be reached alone (odds ratio:2.79; 95% CI 1.04-7.50; P = 0.04) as well as in combination with a systolic blood pressure ≥ 100 mmHg (odds ratio:4.42; 95% CI 1.03-19.01; P = 0.04). CONCLUSIONS Postcardiac arrest anesthesia in out-of-hospital cardiac arrest is associated with early achievement of respiratory target parameters in prehospital postresuscitation care without evidence of more frequent hemodynamic complications.
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Affiliation(s)
- Gerrit Jansen
- University Department of Anesthesiology, Intensive Care Medicine and Emergency Medicine, Johannes Wesling Klinikum Minden, Ruhr University Bochum, Hans-Nolte-Straße 1, 32429, Minden, Germany.
- Medical School OWL, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany.
- Department of Medical and Emergency Services, Study Institute Westfalen-Lippe, Remterweg 44, 33617, Bielefeld, Germany.
| | - Eugen Latka
- Department of Medical and Emergency Services, Study Institute Westfalen-Lippe, Remterweg 44, 33617, Bielefeld, Germany
| | - Michael Bernhard
- Central Emergency Department, University Hospital of Düsseldorf, Moorenstrasse 5, 40225, Düsseldorf, Germany
| | - Martin Deicke
- Emergency Medical Service, Countryside of Osnabrueck, Am Schölerberg 1, 49082, Osnabrueck, Germany
- Department of Anesthesiology and Operative Intensive Care Medicine, Hospital of Osnabrueck, Am Finkenhügel 1, 49076, Osnabrueck, Germany
| | - Daniel Fischer
- Emergency Medical Service, City and District of Lippe-Detmold, Röntgenstraße 18, 32756, Detmold, Germany
| | - Annika Hoyer
- Biostatistics and Medical Biometry, Medical School OWL, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Yacin Keller
- Department of Public Order and Security, Fire and Disaster Control Office, Integrated Regional Control Centre, Scharfenberger Straße 47, 01139, Dresden, Germany
- Departement for Anesthesiology and Intensive Care Medicine, Emergency Medicine and Pain Therapy, Municipal Hospital Dresden - Friedrichstadt, Friedrichstraße 41, 01067, Dresden, Germany
| | - André Kobiella
- Emergency Medical Service, City and District of Guetersloh, Herzebrocker Strasse 140, 33324, Guetersloh, Germany
| | - Bernd Strickmann
- Emergency Medical Service, City and District of Guetersloh, Herzebrocker Strasse 140, 33324, Guetersloh, Germany
| | - Lisa Marie Strototte
- Department of Anesthesiology, Intensive Care, Emergency Medicine, Transfusion Medicine, and Pain Therapy, Protestant Hospital of the Bethel Foundation, Medical School OWL, Bielefeld University, Burgsteig 13, 33617, Bielefeld, Germany
| | - Karl-Christian Thies
- Department of Anesthesiology, Intensive Care, Emergency Medicine, Transfusion Medicine, and Pain Therapy, Protestant Hospital of the Bethel Foundation, Medical School OWL, Bielefeld University, Burgsteig 13, 33617, Bielefeld, Germany
| | - Kai Johanning
- Department of Anesthesiology, Operative Intensive Care Medicine, Emergency Medicine and Pain Therapy, Bielefeld Municipal Hospital, Medical School OWL, Bielefeld University, Campus Klinikum Bielefeld, Teutoburger Straße 50, 33604, Bielefeld, Germany
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Jansen G, Latka E, Bernhard M, Deicke M, Fischer D, Hoyer A, Keller Y, Kobiella A, Linder S, Strickmann B, Strototte LM, Thies KC, Johanning K, von Dossow V, Hinkelbein J. Midazolam for Post-Arrest Sedation in Pre-Hospital Emergency Care. DEUTSCHES ARZTEBLATT INTERNATIONAL 2024; 121:214-221. [PMID: 38260968 DOI: 10.3238/arztebl.m2023.0277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 12/15/2023] [Accepted: 12/15/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND An out-of-hospital cardiac arrest (OHCA) with return of spontaneous circulation (ROSC) may need to be treated with airway management, emergency ventilation, invasive interventions, and post-arrest sedation. We investigated the influence of the use of midazolam for post-arrest sedation on achieving postresuscitation care targets and the associated risk of hemodynamic complications. METHODS All emergency rescue missions of the Dresden, Gütersloh, and Lippe medical rescue services in the years 2019-2021 were reviewed to identify adult patients who had OHCA, unconsciousness, and sustained ROSC with spontaneous circulation until arrival at the hospital; the findings were supplemented with data from the German Resuscitation Registry. Patients who received midazolam (alone or in combination with other anesthetic agents) for post-arrest sedation were compared with those who did not. The endpoints were the regaining of a systolic blood pressure ≥ 100 mmHg, end-tidal pCO2 35-45 mmHg, and oxygen saturation (SpO2) 94-98%. A propensity score analysis was used to adjust for age, sex, and variables potentially affecting hemodynamic status or the targets for oxygenation and ventilation. RESULTS There were 2335 cases of OHCA among 391 305 emer - gency rescue missions. 571 patients had ROSC before arrival in the hospital (24.5%; female, 33.6%; age, 68 ± 14 years). Of the 395 among them (69.2%) who were treated with postarrest sedation, 249 (63.0%) received midazolam. Patients who received midazolam reached the guideline- recommended targets for oxygenation, ventilation, and blood pressure more frequently than those who were not sedated: the respective odds ratios and 95% confidence intervals were 2.00 [1.20; 3.34], 1.57 [0.99; 2.48], and 1.41 [0.89; 2.21]. CONCLUSION The pre-hospital administration of midazolam leads to more frequent pre-hospital attainment of the oxygenation and ventilation targets in post-resuscitation care, without any evidence of an elevated risk of hemodynamic complications.
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Affiliation(s)
- Gerrit Jansen
- University Department of Anesthesiology, Intensive Care Medicine and Emergency Medicine, Johannes Wesling Klinikum Minden, Ruhr-University Bochum, Minden, Germany; Medical School OWL, Bielefeld University, Bielefeld, Germany; Department of Medical and Emergency Services, Study Institute Westfalen-Lippe, Bielefeld, Germany; Emergency Department, University Hospital of Düsseldorf, Düsseldorf, Germany; Medical Director of Rescue Service, Osnabrück District, Germany; Department of Anesthesiology and Operative Intensive Care Medicine, Hochschule Osnabrück - University of Applied Sciences, Osnabrück, Germany; Rescue Service Lippe District, Germany; Biostatistics and Medical Biometry, Medical School OWL, Bielefeld University, Bielefeld, Germany; Rescue Service, Integrated Regional Control Center Dresden, Dresden, Germany; Rescue Service, Gütersloh District, Germany; Skillslab, Medical School OWL, Bielefeld University, Bielefeld, Germany; University Department of Anesthesiology, Intensive Care Medicine, Emergency Medicine, Transfusion Medicine, and Pain Therapy, Evangelisches Klinikum Bethel, University Hospital OWL, Bielefeld University, Bielefeld, Germany; Department of Anesthesiology, Operative Intensive Care Medicine, Emergency Medicine and Pain Therapy, Municipal Hospital of Bielefeld, Bielefeld, Germany; Institute of Anesthesiology and Pain Therapy, Heart and Diabetes Center NRW, University Hospital of the Ruhr-University Bochum, Bad Oeynhausen, Germany
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Morton S, Spurgeon Z, Ashworth C, Samouelle J, Sherren PB. Cardiorespiratory consequences of attenuated fentanyl and augmented rocuronium dosing during protocolised prehospital emergency anaesthesia at a regional air ambulance service: a retrospective study. Scand J Trauma Resusc Emerg Med 2024; 32:12. [PMID: 38347604 PMCID: PMC10863113 DOI: 10.1186/s13049-024-01183-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 01/23/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND Pre-Hospital Emergency Anaesthesia (PHEA) has undergone significant developments since its inception. However, optimal drug dosing remains a challenge for both medical and trauma patients. Many prehospital teams have adopted a drug regimen of 3 mcg/kg fentanyl, 2 mg/kg ketamine and 1 mg/kg rocuronium ('3:2:1'). At Essex and Herts Air Ambulance Trust (EHAAT) a new standard dosing regimen was introduced in August 2021: 1 mcg/kg fentanyl, 2 mg/kg ketamine and 2 mg/kg rocuronium (up to a maximum dose of 150 mg) ('1:2:2'). The aim of this study was to evaluate the cardiorespiratory consequences of a new attenuated fentanyl and augmented rocuronium dosing regimen. METHODS A retrospective study was conducted at EHAAT as a service evaluation. Anonymized records were reviewed from an electronic database to compare the original ('3:2:1') drug dosing regimen (December 2019-July 2021) and the new ('1:2:2') dosing regimen (September 2021-May 2023). The primary outcome was the incidence of absolute hypotension within ten minutes of induction. Secondary outcomes included immediate hypertension, immediate hypoxia and first pass success (FPS) rates. RESULTS Following exclusions (n = 121), 720 PHEA cases were analysed (360 new vs. 360 original, no statistically significant difference in demographics). There was no difference in the rate of absolute hypotension (24.4% '1:2:2' v 23.8% '3:2:1', p = 0.93). In trauma patients, there was an increased first pass success (FPS) rate with the new regimen (95.1% v 86.5%, p = 0.01) and a reduced incidence of immediate hypoxia (7.9% v 14.8%, p = 0.05). There was no increase in immediate hypertensive episodes (22.7% vs. 24.2%, p = 0.73). No safety concerns were identified. CONCLUSION An attenuated fentanyl and augmented rocuronium dosing regimen showed no difference in absolute hypotensive episodes in a mixed cohort of medical and trauma patients. In trauma patients, the new regimen was associated with an increased FPS rate and reduced episodes of immediate hypoxia. Further research is required to understand the impact of such drug dosing in the most critically ill and injured subpopulation.
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Affiliation(s)
- Sarah Morton
- Essex & Herts Air Ambulance Trust, Essex, UK.
- Imperial College London, London, UK.
| | | | | | | | - Peter B Sherren
- Essex & Herts Air Ambulance Trust, Essex, UK
- Guy's and St Thomas' NHS Foundation Trust, London, UK
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Sagi L, Price J, Lachowycz K, Starr Z, Major R, Keeliher C, Finbow B, McLachlan S, Moncur L, Steel A, Sherren PB, Barnard EBG. Critical hypertension in trauma patients following prehospital emergency anaesthesia: a multi-centre retrospective observational study. Scand J Trauma Resusc Emerg Med 2023; 31:104. [PMID: 38124103 PMCID: PMC10731700 DOI: 10.1186/s13049-023-01167-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Critical hypertension in major trauma patients is associated with increased mortality. Prehospital emergency anaesthesia (PHEA) is performed for 10% of the most seriously injured patients. Optimising oxygenation, ventilation, and cerebral perfusion, whilst avoiding extreme haemodynamic fluctuations are the cornerstones of reducing secondary brain injury. The aim of this study was to report the differential determinants of post-PHEA critical hypertension in a large regional dataset of trauma patients across three Helicopter Emergency Medical Service (HEMS) organisations. METHODS A multi-centre retrospective observational study of consecutive adult trauma patients undergoing PHEA across three HEMS in the United Kingdom; 2015-2022. Critical hypertension was defined as a new systolic blood pressure (SBP) > 180mmHg within 10 min of induction of anaesthesia, or > 10% increase if the baseline SBP was > 180mmHg prior to induction. Purposeful logistical regression was used to explore variables associated with post-PHEA critical hypertension in a multivariable model. Data are reported as number (percentage), and odds ratio (OR) with 95% confidence interval (95%CI). RESULTS 30,744 patients were attended by HEMS during the study period; 2161 received PHEA and 1355 patients were included in the final analysis. 161 (11.9%) patients had one or more new episode(s) of critical hypertension ≤ 10 min post-PHEA. Increasing age (compared with 16-34 years): 35-54 years (OR 1.76, 95%CI 1.03-3.06); 55-74 years (OR 2.00, 95%CI 1.19-3.44); ≥75 years (OR 2.38, 95%CI 1.31-4.35), pre-PHEA Glasgow Coma Scale (GCS) motor score four (OR 2.17, 95%CI 1.19-4.01) and five (OR 2.82, 95%CI 1.60-7.09), patients with a pre-PHEA SBP > 140mmHg (OR 6.72, 95%CI 4.38-10.54), and more than one intubation attempt (OR 1.75, 95%CI 1.01-2.96) were associated with post-PHEA critical hypertension. CONCLUSION Delivery of PHEA to seriously injured trauma patients risks haemodynamic fluctuation. In adult trauma patients undergoing PHEA, 11.9% of patients experienced post-PHEA critical hypertension. Increasing age, pre-PHEA GCS motor score four and five, patients with a pre-PHEA SBP > 140mmHg, and more than intubation attempt were independently associated with post-PHEA critical hypertension.
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Affiliation(s)
- Liam Sagi
- Department of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK.
| | - James Price
- Department of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK
- Emergency Department, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Kate Lachowycz
- Department of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK
| | - Zachary Starr
- Department of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK
| | - Rob Major
- Department of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK
| | | | | | - Sarah McLachlan
- Essex and Herts Air Ambulance, Earls Colne, UK
- Anglia Ruskin University, Chelmsford, UK
| | - Lyle Moncur
- Essex and Herts Air Ambulance, Earls Colne, UK
| | | | - Peter B Sherren
- Essex and Herts Air Ambulance, Earls Colne, UK
- Department of Critical Care Medicine, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Ed B G Barnard
- Department of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK
- Emergency Department, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
- Academic Department of Military Emergency Medicine, Royal Centre for Defence Medicine (Research & Clinical Innovation), Birmingham, UK
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Price J, Moncur L, Lachowycz K, Major R, Sagi L, McLachlan S, Keeliher C, Steel A, Sherren PB, Barnard EBG. Predictors of post-intubation hypotension in trauma patients following prehospital emergency anaesthesia: a multi-centre observational study. Scand J Trauma Resusc Emerg Med 2023; 31:26. [PMID: 37268976 PMCID: PMC10236576 DOI: 10.1186/s13049-023-01091-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 05/24/2023] [Indexed: 06/04/2023] Open
Abstract
BACKGROUND Post-intubation hypotension (PIH) after prehospital emergency anaesthesia (PHEA) is prevalent and associated with increased mortality in trauma patients. The objective of this study was to compare the differential determinants of PIH in adult trauma patients undergoing PHEA. METHODS This multi-centre retrospective observational study was performed across three Helicopter Emergency Medical Services (HEMS) in the UK. Consecutive sampling of trauma patients who underwent PHEA using a fentanyl, ketamine, rocuronium drug regime were included, 2015-2020. Hypotension was defined as a new systolic blood pressure (SBP) < 90 mmHg within 10 min of induction, or > 10% reduction if SBP was < 90 mmHg before induction. A purposeful selection logistic regression model was used to determine pre-PHEA variables associated with PIH. RESULTS During the study period 21,848 patients were attended, and 1,583 trauma patients underwent PHEA. The final analysis included 998 patients. 218 (21.8%) patients had one or more episode(s) of hypotension ≤ 10 min of induction. Patients > 55 years old; pre-PHEA tachycardia; multi-system injuries; and intravenous crystalloid administration before arrival of the HEMS team were the variables significantly associated with PIH. Induction drug regimes in which fentanyl was omitted (0:1:1 and 0:0:1 (rocuronium-only)) were the determinants with the largest effect sizes associated with hypotension. CONCLUSION The variables significantly associated with PIH only account for a small proportion of the observed outcome. Clinician gestalt and provider intuition is likely to be the strongest predictor of PIH, suggested by the choice of a reduced dose induction and/or the omission of fentanyl during the anaesthetic for patients perceived to be at highest risk.
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Affiliation(s)
- James Price
- Department of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK
- Emergency Department, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Lyle Moncur
- Essex and Herts Air Ambulance, Earls Colne, UK
| | - Kate Lachowycz
- Department of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK
| | - Rob Major
- Department of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK
| | - Liam Sagi
- Department of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK
| | - Sarah McLachlan
- Essex and Herts Air Ambulance, Earls Colne, UK
- Anglia Ruskin University, Chelmsford, UK
| | | | | | - Peter B. Sherren
- Essex and Herts Air Ambulance, Earls Colne, UK
- Department of Critical Care Medicine, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | - Ed B. G. Barnard
- Department of Research, Audit, Innovation, and Development, East Anglian Air Ambulance, Norwich, UK
- Emergency Department, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
- Academic Department of Military Emergency Medicine, Royal Centre for Defence Medicine (Research & Clinical Innovation), Birmingham, UK
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Škulec R. Year 2022 in review - Pre-hospital emergency care. ANESTEZIOLOGIE A INTENZIVNÍ MEDICÍNA 2022. [DOI: 10.36290/aim.2022.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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Morton S, Dawson J, Wareham G, Broomhead R, Sherren P. The Prehospital Emergency Anaesthetic in 2022. Air Med J 2022; 41:530-535. [PMID: 36494168 DOI: 10.1016/j.amj.2022.08.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/28/2022] [Accepted: 08/15/2022] [Indexed: 12/14/2022]
Abstract
Prehospital emergency anesthesia (PHEA) is a commonly performed prehospital procedure with inherent risks. The processes and drug regimens behind PHEA are continually updated by prehospital teams across the country as part of their governance structure. Essex & Herts Air Ambulance has recently updated this practice by reviewing the entire process of performing PHEA. Through experiential learning in a high-volume service, audit, and a contemporary literature review, a new standard operating procedure has been developed to combat common problems, such as hypotension, associated with the more traditional methods of performing PHEA. The aim of this article was to summarize the literature behind this new standard operating procedure, systematically breaking down the core components of performing a PHEA and the rationale behind them. The key components identified in the review are indications for PHEA, airway assessment, peri-intubation oxygenation, preparation for PHEA, drug dosing, special circumstances, and failed intubation. One significant change is the drug dosage regimen; 1 μg/kg fentanyl, 2 mg/kg ketamine, and 2 mg/kg rocuronium is recommended as the main drug dosing regimen for both medical and trauma patients. Other changes include preoxygenation with a nasal cannula in addition to the nonrebreather mask, optimizing patients in the preparation phase by considering inopressors or fluid bolus and ensuring a "sterile cockpit" to control the surrounding environment to ensure the first intubation attempt is the best attempt.
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Affiliation(s)
- Sarah Morton
- Essex & Herts Air Ambulance, Flight House, Essex, United Kingdom; Department of Surgery, Imperial College, London, United Kingdom
| | - Jonathan Dawson
- Essex & Herts Air Ambulance, Flight House, Essex, United Kingdom
| | - Gaynor Wareham
- Essex & Herts Air Ambulance, Flight House, Essex, United Kingdom
| | - Robert Broomhead
- Essex & Herts Air Ambulance, Flight House, Essex, United Kingdom
| | - Peter Sherren
- Essex & Herts Air Ambulance, Flight House, Essex, United Kingdom; Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom.
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Impact of enhanced personal protective equipment on safety and logistics of pre-hospital emergency anaesthesia during the COVID-19 pandemic: a retrospective crossover study. Br J Anaesth 2022; 129:e102-e104. [PMID: 36055818 PMCID: PMC9293852 DOI: 10.1016/j.bja.2022.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 11/24/2022] Open
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