PRedictors Of Maladaptive Behaviors in Children Undergoing Procedural SEDation
PRoSEED
Predictors of Maladaptive Behaviors in Children Undergoing Procedural Sedation
1 other identifier
observational
2,145
1 country
2
Brief Summary
Procedural sedation for children outside of the operating room is a common practice in emergency departments, outpatient clinics, radiology suites, and dental offices for painful and anxiety-provoking procedures. However, there is emerging evidence that so-called "delayed maladaptive behaviors" (disordered sleep, anxiety, and aggression) affect nearly a quarter of children for up to 2 weeks following sedation. This can lead to poor school attendance, reduced extracurricular involvement, disruptions to caregivers' employment obligations, and poor patient satisfaction. As this phenomenon has only recently been identified, very little is known about what factors predispose children to delayed maladaptive behaviors, however, small studies suggest younger age and pre-procedural anxiety may be involved. The aim of our study is to characterize risk factors for delayed maladaptive behavior in a large multicentre study involving emergency departments, dental offices, and hospital sedation services. Understanding these risk factors may help healthcare workers prevent delayed maladaptive behaviors and provide patients with anticipatory guidance, akin to post-operative recovery instructions. There is emerging evidence that maladaptive behaviors, including significant negative behavioral changes, can occur in children following procedural sedation. These include disordered sleep, anxiety, and aggression)1,2 and affect up to 24% of children following inhalational anesthetics3 and intravenous sedatives such as ketamine.1 Moreover, these appear to be more pronounced in children \<4 years4 and can persist for up to 2 weeks post-sedation. Unfortunately, only two trials have reported delayed maladaptive behaviors.1,2 Data on immediate and delayed AEs are urgently needed for safe clinical decision-making and anticipatory guidance surrounding ED anxiolytics. In a prospective cohort study of children undergoing emergency department procedural sedation with intravenous ketamine, 22% exhibited significant negative behavioral changes 1-2 weeks after discharge, as measured by the Post-Hospitalization Behavior Questionnaire. High pre-procedure anxiety have been identified as independent predictors of these maladaptive behaviors.5 Additionally, irritability, hyperactivity, and hallucinations during recovery have been reported and are associated with lower parental satisfaction.6
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Mar 2026
Longer than P75 for all trials
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
March 18, 2026
CompletedFirst Submitted
Initial submission to the registry
March 19, 2026
CompletedFirst Posted
Study publicly available on registry
March 27, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
May 30, 2030
March 27, 2026
March 1, 2026
3.8 years
March 19, 2026
March 24, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Post-Hospital Behavior Questionnaire for Ambulatory Surgery (PHBQ-AS)
The PHBQ-AS is a caregiver-reported 11-item measure of post-hospitalization behavioral changes. The PHBQ-AS is a revision of the original PHBQ with 11 items, no subscales, and a different scoring approach that treats behavioral change as a continuous overall construct, based on average item scores, rather than relying on a count of "severe" behaviors or a threshold meant to imply clinical severity. To score the PHBQ-AS, items are averaged by summing the items for each respondent and dividing by the total number of items. The total PHBQ-AS score produces a continuous variable with higher values above 3 (the midpoint) indicating greater maladaptive behavioral changes, lower values below 3 indicating improvements in behavioral change, and values equal to 3 indicating no behavioral change. A cut-off score of 3.2 on the PHBQ-AS for the diagnosis of negative behavior has been published.33 The original PHBQ was designed to measure behavior changes after surgery or hospitalization, and has be
3 days
Secondary Outcomes (1)
PHBQ
Days 1, 7, 10, and 14
Study Arms (1)
Procedural sedation or anxiolysis
Children and adolescents 1-17 years undergoing procedural sedation or anxiolysis with any agent for any indication in the ED and dental clinics.
Eligibility Criteria
Children and adolescents 1-17 years undergoing procedural sedation or anxiolysis with any agent for any indication in the ED and dental clinics
You may qualify if:
- Children and adolescents 1-17 years undergoing procedural sedation or anxiolysis with any agent for any indication in the ED and dental clinics
You may not qualify if:
- Patients where the primary caregiver lacks English or French (if applicable to site) comprehension in the absence of a native language interpreter
- Lack a smartphone able to receive SMS text messages
- Caregiver and/or patient are not available for all of the planned follow-up dates
- Previously enrolled in the study
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
London Health Sciences Centre
London, Ontario, N6A5W9, Canada
London Health Sciences Centre
Londo, Ontario, N6A5W9, Canada
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Naveen Poonai, MD MSc
Western University
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
March 19, 2026
First Posted
March 27, 2026
Study Start
March 18, 2026
Primary Completion (Estimated)
December 31, 2029
Study Completion (Estimated)
May 30, 2030
Last Updated
March 27, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share
This was not specified in the ethics application.