RT info:eu-repo/semantics/article T1 Mitochondrial DNA haplogroups are associated with severe sepsis and mortality in patients who underwent major surgery A1 Jiménez-Sousa, Maria Angeles A1 Tamayo, Eduardo A1 Guzmán-Fulgencio, María A1 Heredia, María A1 Fernández-Rodríguez, Amanda A1 Gómez, Esther A1 Almansa, Raquel A1 Gómez-Herreras, José I. A1 García-Álvarez, Mónica A1 Gutiérrez-Junco, Sandra A1 Bermejo-Martin, Jesús F. A1 Resino, Salvador K1 Mitochondrial haplogroups; Severe sepsis; Systemic Inflammatory Response Syndrome AB Objective: To analyse whether mitochondrial DNA (mtDNA) haplogroups are associatedwith severe sepsis and mortality after major surgery.Methods: We performed a case-control study on 240 cardiac or abdominal surgery patientsdeveloping severe sepsis (Case-group) and 267 cardiac or abdominal surgery patients withoutsevere sepsis and with systemic inflammatory response syndrome (SIRS, Control-group).Furthermore, a longitudinal substudy was performed for analysing the survival in septic patients.Only European white patients within the N macro-cluster were included.Results: Case-group underwent cardiac surgery had lower frequencies of cluster HV(p Z 0.005) and haplogroup H (p Z 0.005) and higher frequencies of cluster JT (p Z 0.028)than Control-group; but no significant differences were found for abdominal surgery. Besidesboth cluster HV and haplogroup H were associated with decreased odds of severe sepsis(adjusted odds ratio (aOR) Z 0.45 (95%CI Z 0.25; 0.82); p Z 0.009 and aOR Z 0.48 (95%CI Z 0.26; 0.87); p Z 0.015, respectively) among patients underwent cardiac surgery. InCase-group, 45.4% (109/240) patients died with a survival median of 39 (95%CI Z 31.4;46.62) days. When the clusters were examined, 41% (55/134) patients within cluster HV diedversus 71.4% (10/14) patients within cluster IWX (p Z 0.018). Additionally, patients withincluster IWX had an increased risk of death (adjusted hazard ratio (aHR) Z 2.22; (95%CI Z 1.14; 4.34); p Z 0.019).Conclusions: European mitochondrial haplogroups might be related to the onset of severesepsis in patients who underwent major cardiac surgery, but not in patients underwent majorabdominal surgery. Besides, mtDNA haplogroups could have influence on mortality in septic patients. PB W B SAUNDERS CO SN 0163-4453 YR 2015 FD 2015 LK https://uvadoc.uva.es/handle/10324/82891 UL https://uvadoc.uva.es/handle/10324/82891 LA spa NO J Infect,2015 Jan;70(1):20-9 NO Producción Científica DS UVaDOC RD 22-feb-2026