Perioperative medicine & outcomes

Long-term and pre-operative benzodiazepine use in older adults and risk for postoperative delirium: An additional analysis of the multicentre Biomarker Development for Postoperative Cognitive Impairment in the Elderly Study

Eur J AnaesthesiolPublished Secondary analysis of the BioCog prospective cohort study

Authors' conclusion

Long-term use of benzodiazepines is associated with the development of POD, but short-term use as a premedicant is not.

Study context

Population
Older adults undergoing elective surgery, Charité - Universitätsmedizin Berlin (Germany) and University Hospital Utrecht (Netherlands), October 2014 to September 2019analysed
Participants
928 adults
Comparison
Long-term benzodiazepine use and benzodiazepine premedication vs no use
Primary endpoint
Development of POD and cognition (association with benzodiazepine use)
Methodological detailsmulticentre, two-centre
  • Multicentre
  • Two-centre

Primary result

As reported in the abstract

POD
Long-term benzodiazepine use significantly associated with risk of postoperative delirium (POD), independent of sex
P < 0.001
Benzodiazepine premedication immediately before surgery not associated with risk of POD
P = 0.242

Further findings

POD by sex

Males and females developed POD at similar rates

Original publication

Long-term and pre-operative benzodiazepine use in older adults and risk for postoperative delirium: An additional analysis of the multicentre Biomarker Development for Postoperative Cognitive Impairment in the Elderly Study. Eur J Anaesthesiol. Published 16 May 2025. doi:10.1097/eja.0000000000002201

Composed by AI from the published abstract and checked against it. How Briefs are made →

Get them every week

New studies on this topic in My Week and in your Monday e-mail.

We e-mail you a sign-in link and a code. No password, no spam.