Cognitive resource impairment and systemic integration syndrome (CRISIS) in critical care teams: a scoping review and conceptual framework

Purpose: High-acuity critical care environments impose extreme environmental and cognitive demands on healthcare teams. Yet, existing human factor models and individual burnout scales insufficiently explain acute, collective neurocognitive failures. The purpose of this scoping review is to inductively synthesize the existing literature to propose a novel conceptual framework: Cognitive Resource Impairment and Systemic Integration Syndrome (CRISIS) in critical care teams. Method: Guided by PRISMA 2020, we conducted a scoping review and inductive thematic synthesis of multidisciplinary literature (inception–December 2025). To overcome nomenclatural fragmentation, we queried five databases (PubMed, Scopus, Web of Science, Embase, PsycINFO) via a 'construct-intersection' strategy, targeting the convergence of acute environmental stressors and team cognition. Of 325 initial records, 25 heterogeneous studies, spanning empirical clinical data, high-fidelity simulation, and sociotechnical theory, remained after excluding duplicates, patient-centered delirium, and individual burnout lacking systemic team-level correlates. Finally, the Mixed Methods Appraisal Tool (MMAT) weighted these studies, prioritizing high-quality mechanistic data to triangulate the syndrome's synthesis. Results: The synthesis identifies CRISIS not as professional dissatisfaction, but as an acute “neurocognitive lockdown” precipitated by specific environmental toxicity (e.g., cumulative noise >60 dB, alarm floods, and stochastic workflow interruptions). Distinct from the diachronic, emotional depletion of burnout, CRISIS manifests as a reversible, synchronic, functional decompensation of the Team Neural Network (Shared Mental Models). The proposed sociotechnical model frames these stressors as non-linear engineering constraints that trigger immediate decision failure. Conclusion: CRISIS represents a functional “neurocognitive lockdown” of the ICU team neural network, distinct from chronic occupational syndromes. Patient safety relies not on longitudinal resilience training, but on “Systemic Resource Infusion”, immediate, structural overrides like leadership-mandated cognitive time-outs, to restore network integrity and prevent progression toward irreversible medical error. Implication for clinical practice: CRISIS is ontologically distinct from burnout's diachronic attrition, representing a synchronic, functional “neurocognitive lockdown” of the Team Neural Network precipitated by environmental toxicity. Patient safety relies not on individual resilience, but on Systemic Resource Infusion—immediate, structural overrides reconstituting collective cognition and preventing the non-linear trajectory toward decision failure.