The Relationship Between Obesity In Childhood And Survival Rate After Cardiopulmonary Resuscitation

Objective: We investigate the prognosis between obese children and nonobese children. From the result, we try to figure out whether obesity decreases the survival rate after cardiopulmonary resuscitation (CPR) in obese children.Methods: We collected all patients who were admitted to Children's Hospital of Chongqing Medical University between June 1st 2005 and June 1st 2010. Finally, 85 patients who had received PCR were found, among which 55 patients with detailed notes, putting into 2 groups (obese children group and nonobese children group) were analyzed. Obesity was defined according to World Health Organization (WHO) growth standards. Children if 0-5-year old (including 5 years old)were calculated z-scores by using Weight-for-length chart. Children if 5-year old to 18-year old were calculated body mass index (BMI)-for-age. A z-scores more than 2 standard-deviations (SD) or BMI over than 30kg/m2 was considered obesity. The number of patients discharge to hospital and the number of deaths were calculated, respectively. Survival rate equaled patients-discharge-to-hospital / total-patients-number ratio. Both chi-square test and analysis of variance (ANOVA) were applied for dichotomous data and quantitative data respectively.Results: Obesity was noted for 7 of 55 subjects, accounting for 12.7%, which was higher than that of National epidemiological survey on childhood obesity, 2006,China. Obese children group and nonobese children group showed no difference among gender, age, illness category, mode of discovery of event, duration and time of CPR, drugs and time of in-intensive-care-unit (ICU) or mechanical ventilation. Return of spontaneous circulation (ROSC) was accounted for 20% (n=11, 11:55). Patients survived to discharge were 17, and then the total survival rate is 31%, which was higher than that of international report (27%). Neurologic lesion(s) among survivors was accounted for 29.4% (n=5, 5:17). There was no significance between obese children group and nonobese children group either among ROSC, survival rate and neurologic lesion(s).Conclusion: Survival rate after cardiopulmonary resuscitation (CPR) between obese children group and nonobese children group has no significant difference. So we can conclude that obesity is not a risk factor for cardiopulmonary resuscitation (CPR).