- Gardner, Monique;
- Hehir, David;
- Reeder, Ron;
- Ahmed, Tageldin;
- Bell, Michael;
- Berg, Robert;
- Bishop, Robert;
- Bochkoris, Matthew;
- Burns, Candice;
- Carcillo, Joseph;
- Carpenter, Todd;
- Dean, J;
- Diddle, J;
- Federman, Myke;
- Fernandez, Richard;
- Fink, Ericka;
- Franzon, Deborah;
- Frazier, Aisha;
- Friess, Stuart;
- Graham, Kathryn;
- Hall, Mark;
- Harding, Monica;
- Horvat, Christopher;
- Huard, Leanna;
- Maa, Tensing;
- Manga, Arushi;
- McQuillen, Patrick;
- Meert, Kathleen;
- Morgan, Ryan;
- Mourani, Peter;
- Nadkarni, Vinay;
- Naim, Maryam;
- Notterman, Daniel;
- Pollack, Murray;
- Sapru, Anil;
- Schneiter, Carleen;
- Sharron, Matthew;
- Srivastava, Neeraj;
- Tilford, Bradley;
- Viteri, Shirley;
- Wessel, David;
- Wolfe, Heather;
- Yates, Andrew;
- Zuppa, Athena;
- Sutton, Robert;
- Topjian, Alexis
INTRODUCTION: Though early hypotension after pediatric in-hospital cardiac arrest (IHCA) is associated with inferior outcomes, ideal post-arrest blood pressure (BP) targets have not been established. We aimed to leverage prospectively collected BP data to explore the association of post-arrest BP thresholds with outcomes. We hypothesized that post-arrest systolic and diastolic BP thresholds would be higher than the currently recommended post-cardiopulmonary resuscitation BP targets and would be associated with higher rates of survival to hospital discharge. METHODS: We performed a secondary analysis of prospectively collected BP data from the first 24 h following return of circulation from index IHCA events enrolled in the ICU-RESUScitation trial (NCT02837497). The lowest documented systolic BP (SBP) and diastolic BP (DBP) were percentile-adjusted for age, height and sex. Receiver operator characteristic curves and cubic spline analyses controlling for illness category and presence of pre-arrest hypotension were generated exploring the association of lowest post-arrest SBP and DBP with survival to hospital discharge and survival to hospital discharge with favorable neurologic outcome (Pediatric Cerebral Performance Category of 1-3 or no change from baseline). Optimal cutoffs for post-arrest BP thresholds were based on analysis of receiver operator characteristic curves and spline curves. Logistic regression models accounting for illness category and pre-arrest hypotension examined the associations of these thresholds with outcomes. RESULTS: Among 693 index events with 0-6 h post-arrest BP data, identified thresholds were: SBP > 10th percentile and DBP > 50th percentile for age, sex and height. Fifty-one percent (n = 352) of subjects had lowest SBP above threshold and 50% (n = 346) had lowest DBP above threshold. SBP and DBP above thresholds were each associated with survival to hospital discharge (SBP: aRR 1.21 [95% CI 1.10, 1.33]; DBP: aRR 1.23 [1.12, 1.34]) and survival to hospital discharge with favorable neurologic outcome (SBP: aRR 1.22 [1.10, 1.35]; DBP: aRR 1.27 [1.15, 1.40]) (all p < 0.001). CONCLUSIONS: Following pediatric IHCA, subjects had higher rates of survival to hospital discharge and survival to hospital discharge with favorable neurologic outcome when BP targets above a threshold of SBP > 10th percentile for age and DBP > 50th percentile for age during the first 6 h post-arrest.