Dataset Information

Acute phase serum proteome in Cardiac Surgery

ABSTRACT: This study is an analysis of the Bern perioperative Biobank, a prospective cohort of adults who underwent cardiac surgery with the use of cardiopulmonary bypass at Bern University Hospital between January and December 2019. Blood samples were taken at induction of anaesthesia and on postoperative day one.

INSTRUMENT(S): timsTOF Pro

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Blood Plasma

DISEASE(S): Inflammation

SUBMITTER: Sarah Flannery

LAB HEAD: Markus M. Luedi

PROVIDER: PXD046496 | Pride | 2023-11-27

REPOSITORIES: Pride

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Dataset's files

Source:

			Action	DRS
	MSQ2488_ProteinGroups.txt	Txt
	TTP0455_MSQ2488_MarkusLuedi_Plate1_A01_S1-A1_1_43569.d.zip	Other
	TTP0455_MSQ2488_MarkusLuedi_Plate1_A02_S1-A2_1_43570.d.zip	Other
	TTP0455_MSQ2488_MarkusLuedi_Plate1_A03_S1-A3_1_43571.d.zip	Other
	TTP0455_MSQ2488_MarkusLuedi_Plate1_A04_S1-A4_1_43572.d.zip	Other

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Project description:Background & Aims: Bariatric surgery is associated with improved outcomes in subjects with severe obesity. We aimed to determine the prognostic relevance of liver histology in a large cohort of obese patients undergoing bariatric surgery. Methods: In a single center cohort of 492 subjects undergoing Roux-en-Y gastric bypass bariatric surgery with routine perioperative liver biopsy at Geneva University Hospital between January 1997 to December 2004, clinical and histopathological variables were analyzed for association with overall survival. Survival of the cohort was compared to age- and sex-matched life tables from the Swiss general population and propensity score-matched subjects from the third National Health and Nutrition Examination Survey (NHANES III). A 32-gene signature was evaluated in the liver tissue of 47 non-alcoholic steatohepatitis (NASH) subjects. Results: Median body mass index was 43.6 kg/m2. Twenty-one patients (4.2%) died during a median follow-up of 10.3 years. At baseline liver histology, 12% and 16% of subjects had NASH, and fibrosis, respectively. In multivariable Cox regression, presence of NASH (hazard ratio [HR] 3.4, p=0.0087), age greater than 50 years (HR 2.7, p=0.044), hypertension (HR 3.8, p=0.021), and short-term postoperative complications (HR 2.8, p=0.048) were associated with overall survival. Compared to matched NHANES III subjects, bariatric surgery improved long-term survival (HR 0.54, p=0.035), although this benefit was not observed in the subgroup of NASH patients (HR 0.97, p=0.94). A 32-gene poor prognosis signature prediction was associated with worse overall survival within NASH subjects (n=47, HR = 7.7, p=0.03 ). Conclusions Histologically proven NASH was associated with increased long-term mortality in subjects undergoing bariatric surgery. Although survival benefit of bariatric surgery may be limited in obese patients with NASH, a 32-gene expression signature appears to predict long term mortality in these patients.

Dataset Information

Acute phase serum proteome in Cardiac Surgery

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