Surgery Clinical Trial
Official title:
Peri-OPerative InflamMAGing in Elderly Patients Undergoing Major Surgery: Prediction and Pathomechanisms of Post-operative Morbidities
The population older than 80 years will significantly increase in the near future. Older patients' cognitive and physical status is known to deteriorate after surgery, leading to a high 30-day mortality due to post-operative comorbidities. Aging and related diseases share immune-related pathomechanisms. During aging, a chronic, low-grade sterile inflammation, called inflamaging, gradually develops. This likely results from low-grade innate immune activation and a functional, epigenomic and transcriptomic reprogramming of immune cells. Based on the hypothesis that surgical trauma leads to misplaced or altered self-molecules, which exacerbate inflammation and the postoperative risk for morbidity and mortality in elderly patients. There is increasing evidence that the individual's pre-operative immunobiography determines the susceptibility to peri-operative inflammation and post-operative outcome. Current exploratory pilot study will thus perform phenotyping of patients above 80 years undergoing major surgery. Participants will be evaluated for acute and long-term outcomes, including all-cause mortality, physical and cognitive function. To assess the individual's immunobiography, participants will be characterised by inflammation biomarkers combined with immunophenotyping, functional assays, and (epi-) genomic analyses before and after surgery. The cognitive impairment will be evaluated by measuring markers of neurodegeneration and neuropsychiatric testing and relate findings to volumetric imaging using high-resolution MRI to identify brain changes associated with cognitive decline.
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