Outcomes, Characteristics, and Physiology of In-Hospital Cardiac Arrest in Children with Sepsis

OBJECTIVES: Prearrest sepsis has been associated with particularly poor outcomes among children who suffer in-hospital cardiac arrest (IHCA), but there is a paucity of dedicated studies on the topic. In this study of children receiving cardiopulmonary resuscitation (CPR) in the ICU, our objective was to determine the associations of sepsis with IHCA outcomes and intraarrest physiology.

DESIGN: Prospectively designed secondary analysis of the ICU Resuscitation Project clinical trial (NCT02837497).

SETTING: The 18 pediatric and pediatric cardiac ICUs at ten children's hospitals in the United States.

PATIENTS: Children (≤ 18 yr) with an index IHCA event.

INTERVENTIONS: None.

MEASUREMENTS AND MAIN RESULTS: The primary exposure was a prearrest diagnosis of sepsis. The primary survival outcome was survival to hospital discharge with favorable neurologic outcome (Pediatric Cerebral Performance Category score 1-3 or unchanged from baseline). The primary physiologic outcome was average diastolic blood pressure (DBP) during CPR. Multivariable regression models controlling for a priori covariates assessed the relationship between sepsis and outcomes. Of 1129 children with index IHCAs, 184 (16.3%) had prearrest sepsis. Patients with sepsis had greater prearrest comorbidities, higher prearrest severity of illness, and higher Vasoactive-Inotropic Scores than patients without sepsis. They more frequently had hypotension as the cause of IHCA, had longer durations of CPR, and more frequently received epinephrine and sodium bicarbonate during CPR. They less frequently achieved survival with favorable neurologic outcome (52/184 [28.3%] vs. 552/945 [58.4%]; p < 0.001; adjusted relative risk, 0.54; 95% CI, 0.43-0.68; p < 0.001). Intraarrest DBPs did not differ between patients with vs. without sepsis. Following IHCA, event survivors with sepsis had higher vasoactive requirements, more frequently experienced hypotension, and continued to have greater mortality rates through 48 hours postarrest.

CONCLUSIONS: Children with prearrest sepsis had worse survival outcomes, similar intraarrest DBPs, and greater pre and postarrest severity of illness than children without sepsis.