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  • Penketh, J. A.; Nolan, J. P.; Skrifvars, M. B.; Rylander, C.; Frenell; Tirkkonen, J.; Reynolds, E. C.; Parr, M. J. A.; Aneman, A. (2020)
    Aim: To determine the type of airway devices used during in-hospital cardiac arrest (IHCA) resuscitation attempts. Methods: International multicentre retrospective observational study of in-patients aged over 18 years who received chest compressions for cardiac arrest from April 2016 to September 2018. Patients were identified from resuscitation registries and rapid response system databases. Data were collected through review of resuscitation records and hospital notes. Airway devices used during cardiac arrest were recorded as basic (adjuncts or bag-mask), or advanced, including supraglottic airway devices, tracheal tubes or tracheostomies. Descriptive statistics and multivariable regression modelling were used for data analysis. Results: The final analysis included 598 patients. No airway management occurred in 36 (6%), basic airway device use occurred at any time in 562 (94%), basic airway device use without an advanced airway device in 182 (30%), tracheal intubation in 301 (50%), supraglottic airway in 102 (17%), and tracheostomy in 1 (0.2%). There was significant variation in airway device use between centres. The intubation rate ranged between 21% and 90% while supraglottic airway use varied between 1% and 45%. The choice of tracheal intubation vs. supraglottic airway as the second advanced airway device was not associated with immediate survival from the resuscitation attempt (odds ratio 0.81; 95% confidence interval 0.35-1.8). Conclusion: There is wide variation in airway device use during resuscitation after IHCA. Only half of patients are intubated before return of spontaneous circulation and many are managed without an advanced airway. Further investigation is needed to determine optimal airway device management strategies during resuscitation following IHCA.
  • Hiltunen, Pamela; Jantti, Helena; Silfvast, Tom; Kuisma, Markku; Kurola, Jouni; FINNRESUSCI Prehosp Study Grp (2016)
    Background: Though airway management methods during out-of-hospital cardiac arrest (OHCA) remain controversial, no studies on the topic from Finland have examined adherence to OHCA recommendations in real life. In response, the aim of this study was to document the interventions, success rates, and adverse events in airway management processes in OHCA, as well as to analyse survival at hospital discharge and at follow-up a year later. Methods: During a 6-month study period in 2010, data regarding all patients with OHCA and attempted resuscitation in southern and eastern Finland were prospectively collected. Emergency medical services (EMS) documented the airway techniques used and all adverse events related to the process. Study endpoints included the frequency of different techniques used, their success rates, methods used to verify the correct placement of the endotracheal tube, overall adverse events, and survival at hospital discharge and at follow-up a year later. Results: A total of 614 patients were included in the study. The incidence of EMS-attempted resuscitation was determined to be 51/100,000 inhabitants per year. The final airway technique was endotracheal intubation (ETI) in 413 patients (67.3 %) and supraglottic airway device (SAD) in 188 patients (30.2 %). The overall success rate of ETI was 92.5 %, whereas that of SAD was 85.0 %. Adverse events were reported in 167 of the patients (27.2 %). Having a prehospital EMS physician on the scene (p Conclusions: This study showed acceptable ETI and SAD success rates among Finnish patients with OHCA. Adverse events related to airway management were observed in more than 25 % of patients, and overall survival was 17.8 % at hospital discharge and 14.0 % after 1 year.
  • Bottiger, B. W.; Bossaert, L. L.; Castren, Maaret Kaarina; Cimpoesu, D.; Georgiou, M.; Greif, R.; Grunfeld, M.; Lockey, A.; Lott, C.; Maconochie, I.; Melieste, R.; Monsieurs, K. G.; Nolan, J. P.; Perkins, G. D.; Raffay, V.; Schlieber, J.; Semeraro, F.; Soar, J.; Truhlar, A.; Van de Voorde, P.; Wyllie, J.; Wingen, S. (2016)
  • Magliocca, Aurora; Olivari, Davide; De Giorgio, Dana; Zani, Davide; Manfredi, Martina; Boccardo, Antonio; Cucino, Alberto; Sala, Giulia; Babini, Giovanni; Ruggeri, Laura; Novelli, Deborah; Skrifvars, Markus B.; Hardig, Bjarne Madsen; Pravettoni, Davide; Staszewsky, Lidia; Latini, Roberto; Belloli, Angelo; Ristagno, Giuseppe (2019)
    Background-Mechanical chest compression (CC) is currently suggested to deliver sustained high-quality CC in a moving ambulance. This study compared the hemodynamic support provided by a mechanical piston device or manual CC during ambulance transport in a porcine model of cardiopulmonary resuscitation. Methods and Results-In a simulated urban ambulance transport, 16 pigs in cardiac arrest were randomized to 18 minutes of mechanical CC with the LUCAS (n=8) or manual CC (n=8). ECG, arterial and right atrial pressure, together with end-tidal CO2 and transthoracic impedance curve were continuously recorded. Arterial lactate was assessed during cardiopulmonary resuscitation and after resuscitation. During the initial 3 minutes of cardiopulmonary resuscitation, the ambulance was stationary, while then proceeded along a predefined itinerary. When the ambulance was stationary, CC-generated hemodynamics were equivalent in the 2 groups. However, during ambulance transport, arterial and coronary perfusion pressure, and end-tidal CO(2 )were significantly higher with mechanical CC compared with manual CC (coronary perfusion pressure: 43 +/- 4 versus 18 +/- 4 mmHg; end-tidal CO2: 31 +/- 2 versus 19 +/- 2 mmHg, P Conclusions-This model adds evidence in favor of the use of mechanical devices to provide ongoing high-quality CC and tissue perfusion during ambulance transport.
  • Suominen, Pertti K.; Vahatalo, Raisa (2012)
  • Baldi, Enrico; Grieco, Niccolo B.; Ristagno, Giuseppe; Alihodzic, Hajriz; Canon, Valentine; Birkun, Alexei; Cresta, Ruggero; Cimpoesu, Diana; Clarens, Carlo; Ganter, Julian; Markota, Andrej; Mols, Pierre; Nikolaidou, Olympia; Quinn, Martin; Raffay, Violetta; Ortiz, Fernando Rosell; Salo, Ari; Stieglis, Remy; Stromsoe, Anneli; Tjelmeland, Ingvild; Trenkler, Stefan; Wnent, Jan; Grasner, Jan-Thorsten; Bottiger, Bernd W.; Savastano, Simone (2021)
    Introduction: The rapid use of an automated external defibrillator (AED) is crucial for increased survival after an out-of-hospital cardiac arrest (OHCA). Many factors could play a role in limiting the chance of an AED use. We aimed to verify the situation regarding AED legislation, the AED mapping system and first responders (FRs) equipped with an AED across European countries. Methods: We performed a survey across Europe entitled "European Study about AED Use by Lay Rescuers " (ENSURE), asking the national coordinators of the European Registry of Cardiac Arrest (EuReCa) program to complete it. Results: Nineteen European countries replied to the survey request for a population covering 128,297,955 inhabitants. The results revealed that every citizen can use an AED in 15 countries whereas a training certificate was required in three countries. In one country, only EMS personnel were allowed to use an AED. An AED mapping system and FRs equipped with an AED were available in only 11 countries. The AED use rate was 12-59% where AED mapping and FR systems were implemented, which was considerably higher than in other countries (0-7.9%), reflecting the difference in OHCA survival. Conclusions: Our survey highlighted a heterogeneity in AED legislation, AED mapping systems and AED use in Europe, which was reflected in different AED use and survival.
  • Nelskylä, Annika; Nurmi, Jouni; Jousi, Milla; Schramko, Alexey; Mervaala, Eero; Ristagno, Giuseppe; Skrifvars, Markus (2017)
    Background and aim: We hypothesised that the use of 50% compared to 100% oxygen maintains cerebral oxygenation and ameliorates the disturbance of cardiac mitochondrial respiration during cardiopulmonary resuscitation (CPR). Methods: Ventricular fibrillation (VF) was induced electrically in anaesthetised healthy adult pigs and left untreated for seven minutes followed by randomisation to manual ventilation with 50% or 100% oxygen and mechanical chest compressions (LUCAS (R)). Defibrillation was performed at thirteen minutes and repeated if necessary every two minutes with 1 mg intravenous adrenaline. Cerebral oxygenation was measured with near-infrared spectroscopy (rSO(2), INVOS (TM) 5100C Cerebral Oximeter) and with a probe (NEUROVENT-PTO, RAUMEDIC) in the frontal brain cortex (PbO2). Heart biopsies were obtained 20 min after the return of spontaneous circulation (ROSC) with an analysis of mitochondrial respiration (OROBOROS Instruments Corp., Innsbruck, Austria), and compared to four control animals without VF and CPR. Brain rSO(2) and PbO2 were log transformed and analysed with a mixed linear model and mitochondrial respiration with an analysis of variance. Results: Of the twenty pigs, one had a breach of protocol and was excluded, leaving nine pigs in the 50% group and ten in the 100% group. Return of spontaneous circulation (ROSC) was achieved in six pigs in the 50% group and eight in the 100% group. The rSO(2) (p = 0.007) was lower with FiO(2) 50%, but the PbO2 was not (p = 0.93). After ROSC there were significant interactions between time and FiO(2) regarding both rSO(2) (p = 0.001) and PbO2 (p = 0.004). Compared to the controls, mitochondrial respiration was decreased, with adenosine diphosphate (ADP) levels of 57 (17) pmol s(-1) mg(-1) compared to 92 (23) pmol s(-1) mg(-1) (p = 0.008), but there was no difference between different oxygen fractions (p = 0.79). Conclusions: The use of 50% oxygen during CPR results in lower cerebral oximetry values compared to 100% oxygen but there is no difference in brain tissue oxygen. Cardiac arrest disturbs cardiac mitochondrial respiration, but it is not alleviated with the use of 50% compared to 100% oxygen (Ethical and hospital approvals ESAVI/1077/04.10.07/2016 and HUS/215/2016, 7 30.3.2016, Funding Helsinki University and others). (C) 2017 Elsevier B.V. All rights reserved.
  • Tommila, Miretta; Pystynen, Mikko; Soukka, Hanna; Aydin, Fatih; Rantanen, Matias (2017)
    Background: During maternal cardiac arrest, emergency hysterotomy (EH) is recommended after four minutes of resuscitation, if no signs of spontaneous circulation are detected. This extreme procedure is believed to be potentially beneficial for both the mother and the infant. Both maternal and neonatal survivals seem to be associated to the time delay between the cardiac arrest and the delivery and in-hospital resuscitation location. In addition to this, gestational age is an important determinant to neonatal outcome. Case presentation: We report two emergency hysterotomies executed in an out-of-hospital location. The infants delivered by EH were low birth weight infants and born 20-23 min after maternal cardiac arrest. Both infants survived and had normal physical and neurological growth at the age of two years. Unfortunately, mothers in these both cases died in the field. Conclusion: Contrary to earlier beliefs, it is possible to perform a successful EH also in out-of-hospital setting, even with incomplete surgical skills. However, training and preparation are extremely important for achieving the highest possible readiness to treat maternal cardiac arrest situations also prehospitally.