Perioperative medicine & outcomes

Association of preoperative to postoperative change in cerebrospinal fluid fibrinogen with postoperative delirium

BJA OpenPublished Secondary analysis of the IPOD-B2 prospective observational cohort study

Authors' conclusion

Our preliminary findings support the hypothesis that fibrinogen enters the brain via blood-brain barrier disruption, promoting neuroinflammation and neuronal injury. However, we did not observe an association between cerebrospinal fluid fibrinogen and peak delirium severity in this limited cohort.

Study context

Population
Patients aged >21 yr undergoing aortic aneurysm repair
Participants
24 vs 13
Comparison
Preoperative vs postoperative cerebrospinal fluid (CSF) fibrinogen
  • Before surgeryn = 24reference
  • After surgeryn = 13
Primary endpoint
Perioperative change in CSF fibrinogen

Primary result

As reported in the abstract

CSF fibrinogen increased after surgery
P<0.001

Further findings

Association of CSF fibrinogen increase with CSF/plasma albumin ratio

β
1.09 (95% CI 0.47-1.71, P=0.004)

Peak change in CSF fibrinogen and change in CSF IL-10 and IL-12p70

Peak change in CSF fibrinogen associated with change in CSF IL-10 and IL-12p70

Peak change in CSF fibrinogen and change in CSF total tau

β
0.47 (95% CI 0.24-0.71, P=0.002)

Peak change in CSF fibrinogen and postoperative delirium severity (Delirium Rating Scale-Revised-98)

IRR
1.20 (95% CI 0.66-2.17, P=0.540)
  • No association observed

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

Association of preoperative to postoperative change in cerebrospinal fluid fibrinogen with postoperative delirium. BJA Open. Published 5 October 2024. doi:10.1016/j.bjao.2024.100349

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