The impact of circulatory arrest with selective antegrade cerebral perfusion on brain functional connectivity and postoperative cognitive function.
Tae-Hoon KimSeung-Taek OhHa LeeMyeong Su KimSeo-A SimSarang MinSuk-Won SongJae-Jin KimPublished in: Scientific reports (2023)
Aortic surgery is one of the most challenging types of surgeries, which is possibly related to cognitive sequelae. We aimed to investigate the changes in resting-state functional connectivity (rsFC) associated with intraoperative circulatory arrest (CA) in aortic surgery, exploring the relationship between the altered connectivity and postoperative cognitive functions. Thirty-eight patients participated in this study (14 with CA, 24 without). Functional magnetic resonance imaging was scanned on the fifth day after surgery or after the resolution of delirium if it was developed. We assessed the differences in the development of postoperative cognitive changes and rsFC between patients with and without CA. The occurrence of postoperative delirium and postoperative cognitive dysfunction was not significantly different between the patients with and without the application of CA. However, patients with CA showed increased in posterior cingulate cortex-based connectivity with the right superior temporal gyrus, right precuneus, and right hippocampus, and medial prefrontal cortex-based connectivity with the dorsolateral prefrontal cortex. The application of moderate hypothermic CA with unilateral antegrade cerebral perfusion is unlikely to affect aspects of postoperative cognitive changes, whereas it may lead to increased rsFC of the default mode network at a subclinical level following acute brain insults.
Keyphrases
- resting state
- functional connectivity
- prefrontal cortex
- patients undergoing
- magnetic resonance imaging
- minimally invasive
- protein kinase
- end stage renal disease
- contrast enhanced
- cell cycle
- ejection fraction
- subarachnoid hemorrhage
- aortic valve
- coronary artery bypass
- chronic kidney disease
- computed tomography
- heart failure
- extracorporeal membrane oxygenation
- intensive care unit
- pulmonary artery
- cerebral ischemia
- coronary artery
- magnetic resonance
- cell proliferation
- peritoneal dialysis
- multiple sclerosis
- atrial fibrillation
- cognitive impairment
- acute coronary syndrome
- white matter
- acute respiratory distress syndrome
- brain injury
- transcranial direct current stimulation