An adjusted protective association is not proof that the sedative prevented delirium.
The retrospective transplant study included 321 recipients, of whom sixty-two developed delirium. Illness severity, pretransplant encephalopathy and infection, rejection and reoperation were among identified risk factors. Intraoperative remimazolam and dexmedetomidine use were associated with less delirium in the analysis.
Drug selection was not randomized and may have changed with patient condition or practice over time. Multiple perioperative exposures and transplant complications complicate attribution. Delirium assessment and time of onset also affect classification.
For an expert opinion, distinguish baseline encephalopathy, postoperative delirium and residual sedation. Reconstruct the actual anesthetic regimen and complications. The paper supports a hypothesis for comparative study rather than a patient-specific claim that remimazolam would have prevented or caused delirium.
Source: Publication PMC10585150. The case-review applications above are interpretive analysis.
Related reading: PICU Dose Analysis Found No Zero-Risk Threshold Within an Observational Model.