Kohei Hasegawa

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IMPORTANCE It is unclear whether advanced airway management such as endotracheal intubation or use of supraglottic airway devices in the prehospital setting improves outcomes following out-of-hospital cardiac arrest (OHCA) compared with conventional bag-valve-mask ventilation. OBJECTIVE To test the hypothesis that prehospital advanced airway management is(More)
BACKGROUND We investigated whether children with a higher respiratory syncytial virus (RSV) genomic load are at a higher risk of more-severe bronchiolitis. METHODS Two multicenter prospective cohort studies in the United States and Finland used the same protocol to enroll children aged <2 years hospitalized for bronchiolitis and collect nasopharyngeal(More)
OBJECTIVE To examine temporal trend in the national incidence of bronchiolitis hospitalizations, use of mechanical ventilation, and hospital charges between 2000 and 2009. METHODS We performed a serial, cross-sectional analysis of a nationally representative sample of children hospitalized with bronchiolitis. The Kids Inpatient Database was used to(More)
STUDY OBJECTIVE Although repeated intubation attempts are believed to contribute to patient morbidity, only limited data characterize the association between the number of emergency department (ED) laryngoscopic attempts and adverse events. We seek to determine whether multiple ED intubation attempts are associated with an increased risk of adverse events.(More)
OBJECTIVES Emergency medicine is increasingly recognized as a medical specialty in Japan. However, comprehensive studies evaluating emergency airway management practice are lacking. We describe emergency department (ED) airway management using a large multi-center registry. METHODS We formed the Japanese Emergency Airway Network, a consortium of 10(More)
BACKGROUND Rupture of the pectoralis major muscle is a rare clinical entity that is becoming more common due to the increasing popularity of weightlifting and recreational sports. Due to the rarity of this condition, it may be missed at initial presentation and inappropriately treated, potentially leading to increased disability. OBJECTIVES This case(More)
A novel spatial modulation method has been proposed for the smart grid wireless power transmission systems. In this method, signals are applied to reflectors placed near antennas of a main power transmission system, and a part of the main beam is modulated by the reflectors, with the minimum influence to the main power beam. The reflector is terminated by a(More)
In this analysis of a prospective, multicenter study of children hospitalized with bronchiolitis, 925 had respiratory syncytial virus (RSV)-A and 649 had RSV-B. Overall, bronchiolitis severity did not differ by RSV subtype. However, among children with RSV-only bronchiolitis, those children with RSV-A had higher risk of intensive care treatment (odds ratio,(More)
OBJECTIVES We determined whether crowding at emergency shelters is associated with a higher incidence of sleep disturbance among disaster evacuees and identified the minimum required personal space at shelters. DESIGN Retrospective review of medical charts. SETTING 30 shelter-based medical clinics in Ishinomaki, Japan, during the 46 days following the(More)