title: Life support techniques related to survival after out-of-hospital cardiac arrest in infants.
abstract: OBJECTIVE
  The incidence rate of out-of-hospital cardiac arrest (OHCA) among infants is high; however, little is known about effective life-support for this group. Thus, we examined factors related to 1-month survival after OHCA among infants.
  
  
  METHODS
  All infant OHCA cases occurring between 2005 and 2008 in Japan were extracted from the National Utstein Registry. Split-half random sampling and signal detection analysis were used to identify the effective factors on 1-month survival after OHCA.
  
  
  RESULTS
  The mutual interaction of life support techniques and other factors were identified and used to divide the study population into five subgroups. A witness to the cardiac arrest, rescue breathing administered by a bystander, and less than 18 min to hospital arrival or a witness to the arrest, no rescue breathing and less than 7 min for the ambulance to arrive at the scene were found to be related to higher survival after OHCA in infants. The survival proportions for these subgroups were 44.83% (95% CI: 25.58-64.08) and 19.18% (95% CI: 14.64-23.72), respectively.
  
  
  CONCLUSIONS
  The probability of survival after OHCA in infants may be improved by a bystander witnessing the arrest and providing the rescue breathing at the first sight of arrest.
authors.affiliation: Kyushu University Graduate School of Medicine, Department of Health Services, Management and Policy, 3-1-1 Maidashi, Fukuoka 812-8582, Japan.
authors.forename: Takeru
authors.initials: T
authors.lastname: Abe
authors.forename: Takashi
authors.initials: T
authors.lastname: Nagata
authors.forename: Manabu
authors.initials: M
authors.lastname: Hasegawa
authors.forename: Akihito
authors.initials: A
authors.lastname: Hagihara
mesh_terms: D016887:Cardiopulmonary Resuscitation / Q000379:methods* / Q000401:mortality; D004632:Emergency Medical Services / Q000379:methods*; D005260:Female; D006323:Heart Arrest / Q000401:mortality; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007564:Japan; D008020:Life Support Care / Q000379:methods*; D008297:Male; D058687:Out-of-Hospital Cardiac Arrest / Q000401:mortality / Q000628:therapy*; D015996:Survival Rate; D016896:Treatment Outcome