Tetsuo Maeda1, Akira Yamashita2, Yasuhiro Myojo3, Yukihiro Wato4, Hideo Inaba5. 1. Department of Circulatory Emergency and Resuscitation Science, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan. Electronic address: tetsumae@med.kanazawa-u.ac.jp. 2. Department of Circulatory Emergency and Resuscitation Science, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan; Department of Cardiology, Noto General Hospital, Nanao, Ishikawa, Japan. Electronic address: yamashita@noto-hospital.jp. 3. Emergency Medical Centre, Ishikawa Prefectural Hospital, Kanazawa, Ishikawa, Japan. Electronic address: yasuhiromyojo@yahoo.co.jp. 4. Department Emergency Medicine, Kanazawa Medical University, Uchinada, Ishikawa, Japan. Electronic address: allstar@kanazawa-med.ac.jp. 5. Department of Circulatory Emergency and Resuscitation Science, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan. Electronic address: hidinaba@med.kanazawa-u.ac.jp.
Abstract
PURPOSE: To investigate the impacts of emergency calls made using mobile phones on the quality of dispatcher-assisted cardiopulmonary resuscitation (DA-CPR) and survival from out-of-hospital cardiac arrests (OHCAs) that were not witnessed by emergency medical service (EMS). METHODS: In this prospective study, we collected data for 2530 DA-CPR-attempted medical emergency cases (517 using mobile phones and 2013 using landline phones) and 2980 non-EMS-witnessed OHCAs (600 using mobile phones and 2380 using landline phones). Time factors and quality of DA-CPR, backgrounds of callers and outcomes of OHCAs were compared between mobile and landline phone groups. RESULTS: Emergency calls are much more frequently placed beside the arrest victim in mobile phone group (52.7% vs. 17.2%). The positive predictive value and acceptance rate of DA-CPR in mobile phone group (84.7% and 80.6%, respectively) were significantly higher than those in landline group (79.2% and 70.9%). The proportion of good-quality bystander CPR in mobile phone group was significantly higher than that in landline group (53.5% vs. 45.0%). When analysed for all non-EMS-witnessed OHCAs, rates of 1-month survival and 1-year neurologically favourable survival in mobile phone group (7.8% and 3.5%, respectively) were higher than those in landline phone group (4.6% and 1.9%; p<0.05). Multiple logistic regression analysis, including other backgrounds, revealed that mobile phone calls were associated with increased 1-month survival in the subgroup of OHCAs receiving bystander CPR (adjusted odds ratio, 1.84; 95% CI, 1.15-2.92). CONCLUSION: Emergency calls made using mobile phones are likely to augment the survival from OHCAs by improving DA-CPR.
PURPOSE: To investigate the impacts of emergency calls made using mobile phones on the quality of dispatcher-assisted cardiopulmonary resuscitation (DA-CPR) and survival from out-of-hospital cardiac arrests (OHCAs) that were not witnessed by emergency medical service (EMS). METHODS: In this prospective study, we collected data for 2530 DA-CPR-attempted medical emergency cases (517 using mobile phones and 2013 using landline phones) and 2980 non-EMS-witnessed OHCAs (600 using mobile phones and 2380 using landline phones). Time factors and quality of DA-CPR, backgrounds of callers and outcomes of OHCAs were compared between mobile and landline phone groups. RESULTS: Emergency calls are much more frequently placed beside the arrest victim in mobile phone group (52.7% vs. 17.2%). The positive predictive value and acceptance rate of DA-CPR in mobile phone group (84.7% and 80.6%, respectively) were significantly higher than those in landline group (79.2% and 70.9%). The proportion of good-quality bystander CPR in mobile phone group was significantly higher than that in landline group (53.5% vs. 45.0%). When analysed for all non-EMS-witnessed OHCAs, rates of 1-month survival and 1-year neurologically favourable survival in mobile phone group (7.8% and 3.5%, respectively) were higher than those in landline phone group (4.6% and 1.9%; p<0.05). Multiple logistic regression analysis, including other backgrounds, revealed that mobile phone calls were associated with increased 1-month survival in the subgroup of OHCAs receiving bystander CPR (adjusted odds ratio, 1.84; 95% CI, 1.15-2.92). CONCLUSION: Emergency calls made using mobile phones are likely to augment the survival from OHCAs by improving DA-CPR.
Authors: Jackson J Liang; Nicole R Bianco; Daniele Muser; Andres Enriquez; Pasquale Santangeli; Benjamin A D'Souza Journal: World J Cardiol Date: 2018-04-26