BMC Cardiovascular Disorders (Jan 2019)

Genome-wide association study of myocardial infarction, atrial fibrillation, acute stroke, acute kidney injury and delirium after cardiac surgery – a sub-analysis of the RIPHeart-Study

  • Sabine Westphal,
  • Christian Stoppe,
  • Matthias Gruenewald,
  • Berthold Bein,
  • Jochen Renner,
  • Jochen Cremer,
  • Mark Coburn,
  • Gereon Schaelte,
  • Andreas Boening,
  • Bernd Niemann,
  • Frank Kletzin,
  • Jan Roesner,
  • Ulrich Strouhal,
  • Christian Reyher,
  • Rita Laufenberg-Feldmann,
  • Marion Ferner,
  • Ivo F. Brandes,
  • Martin Bauer,
  • Andreas Kortgen,
  • Sebastian N. Stehr,
  • Maria Wittmann,
  • Georg Baumgarten,
  • Rafael Struck,
  • Tanja Meyer-Treschan,
  • Peter Kienbaum,
  • Matthias Heringlake,
  • Julika Schoen,
  • Michael Sander,
  • Sascha Treskatsch,
  • Thorsten Smul,
  • Ewa Wolwender,
  • Thomas Schilling,
  • Frauke Degenhardt,
  • Andre Franke,
  • Soeren Mucha,
  • Lukas Tittmann,
  • Madeline Kohlhaas,
  • Georg Fuernau,
  • Oana Brosteanu,
  • Dirk Hasenclever,
  • Kai Zacharowski,
  • Patrick Meybohm,
  • RIPHeart-Study Collaborators

DOI
https://doi.org/10.1186/s12872-019-1002-x
Journal volume & issue
Vol. 19, no. 1
pp. 1 – 12

Abstract

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Abstract Background The aim of our study was the identification of genetic variants associated with postoperative complications after cardiac surgery. Methods We conducted a prospective, double-blind, multicenter, randomized trial (RIPHeart). We performed a genome-wide association study (GWAS) in 1170 patients of both genders (871 males, 299 females) from the RIPHeart-Study cohort. Patients undergoing non-emergent cardiac surgery were included. Primary endpoint comprises a binary composite complication rate covering atrial fibrillation, delirium, non-fatal myocardial infarction, acute renal failure and/or any new stroke until hospital discharge with a maximum of fourteen days after surgery. Results A total of 547,644 genotyped markers were available for analysis. Following quality control and adjustment for clinical covariate, one SNP reached genome-wide significance (PHLPP2, rs78064607, p = 3.77 × 10− 8) and 139 (adjusted for all other outcomes) SNPs showed promising association with p < 1 × 10− 5 from the GWAS. Conclusions We identified several potential loci, in particular PHLPP2, BBS9, RyR2, DUSP4 and HSPA8, associated with new-onset of atrial fibrillation, delirium, myocardial infarction, acute kidney injury and stroke after cardiac surgery. Trial registration The study was registered with ClinicalTrials.gov NCT01067703, prospectively registered on 11 Feb 2010.

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