Exposure to ACEI and ARB not tied to prevalence of delirium

Researchers performed a secondary data analysis from two parallel pragmatic randomized controlled trials to research the above background. They defined ACEI and ARB exposure as being prescribed an ACEI or an ARB within six months before ICU admission.

The primary endpoint assessed was the first positive delirium assessment based on Confusion Assessment Method for the ICU (CAM-ICU) for up to thirty days.

The key results of the study are:

• Four thousand seven hundred ninety-one patients were admitted to the medical, surgical, and progressive ICU and screened.
• There was no significant difference between the rates of Delirium in the ICU among participants without and with exposure to ACEI/ARB, exposure to ACEI, ARB, or ACEI and ARB in combination constituting 12.6 %, 14.4 %. 11.8 % and 15.4 %
• The OR for exposure to ACEI, ARB or both was 0.97, 0.70 and 0.97, respectively and was not associated with odds of Delirium during the ICU admission.

They said the impact of ACEI and ARB exposure before ICU admission is not associated with delirium prevalence.

Further investigations are warranted to assess the impact of antihypertensive medications on Delirium.

Further reading:

https://pubmed.ncbi.nlm.nih.gov/36905601/