Kidney International Reports (Feb 2022)

Implantable Loop Recorder Monitoring and the Incidence of Previously Unrecognized Atrial Fibrillation in Patients on Hemodialysis

  • Bruce A. Koplan,
  • Wolfgang C. Winkelmayer,
  • Alexandru I. Costea,
  • Prabir Roy-Chaudhury,
  • James A. Tumlin,
  • Vijay Kher,
  • Don E. Williamson,
  • Saurabh Pokhariyal,
  • David M. Charytan,
  • Don Williamson, MD,
  • Prabir Roy-Chaudhury, MD,
  • James Tumlin, MD,
  • Vijay Kher, MD,
  • Vikranth Reddy, MD,
  • Kowdle Chandrasekhar Prakash, MD,
  • David Charytan, MD MSc,
  • Suresh Chandra Tiwari, MD,
  • Saurabh Pokhariyal, MD,
  • Amber Podoll, MD,
  • Sanjeev Jasuja, MD,
  • G. Leslie Walters, MD,
  • Kraig Wangsnes, MD,
  • Alexandru Costea, MD,
  • Selcuk Tombul, MD,
  • Balbir Singh, MD,
  • Brajesh Mishra, MD,
  • Sachin Yalagudri, MD,
  • Abhijeet Shelke, MD,
  • Calambur Narasimhan, MD,
  • A.M. Karthigesan, MD,
  • Abraham Oomman, MD,
  • K P Pramod Kumar, MD,
  • Bruce Koplan, MD,
  • Upendra Kaul, MD,
  • Tapan Ghose, MD,
  • Ripen Gupta, MD,
  • Arvind Sethi, MD,
  • Nikhil Kumar, MD,
  • Ramesh Hariharan, MD,
  • Rajnish Sardana, MD,
  • Arif Wahab, MD,
  • N.N. Khanna, MD,
  • Mark Smith, MD,
  • Suresh Kamath, MD,
  • Claude Galphin, MD,
  • Puneet Sodhi, MD,
  • Rajsekara Chakravarthy, MD,
  • Subba Rao Budithi, MD,
  • Finnian McCausland, MB, MMSc,
  • Sanjeev Gulati, MD,
  • Munawer Dijoo, MD,
  • Upendra Singh, MD,
  • Salil Jain, MD,
  • Vishal Saxena, MD,
  • Gaurav Sagar, MD,
  • David Charytan, MD, MSc,
  • Rachel Fissell, MD,
  • Robert Foley, MD,
  • Charles A. Herzog, MD,
  • Peter A. McCullough, MD,
  • John D. Rogers, MD,
  • James A. Tumlin, MD,
  • Peter Zimetbaum, MD,
  • Manish Assar, MD,
  • Mark Kremers, MD,
  • Wolfgang C. Winkelmayer, MD, ScD

Journal volume & issue
Vol. 7, no. 2
pp. 189 – 199

Abstract

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Introduction: Atrial fibrillation (AF) is common in patients with kidney failure on hemodialysis (KF-HD). We determined both AF incidence and burden in patients with KF-HD using implantable loop recorder (ILR) monitoring. Methods: Patients with KF-HD were enrolled and received an ILR. In 6 monitoring months, the incidence of AF events lasting ≥6 minutes was captured. Demographic, clinical, and dialysis characteristics were collected, and associations with incident AF were estimated using negative binomial regression models and expressed as incidence rate ratios and 95% CIs. Results: We enrolled 66 patients with KF-HD (mean age = 56 years, 70% male); 59 (90%) were without previously diagnosed AF. AF lasting ≥6 minutes was detected in 18 of 59 subjects (31%) without previously diagnosed AF and in 5 of 7 subjects (71%) with a previous AF diagnosis. Among the 23 with detected AF, episodes were present on 16% of patient days. Although 14 of 23 patients (61%) had AF on 2.5 vs. 2.5 mEq/l: incidence rate ratio = 0.62; 95% CI, 0.48–0.80) was associated with lower AF risk whereas higher dialysate bicarbonate concentrations (>35 vs. 35 mEq/l: incidence rate ratio = 3.18; 95% CI, 1.13–8.94) were associated with higher AF risk. Conclusion: New AF was detected in approximately one-third of patients with KF-HD. AF affects a substantial proportion of patient days and may be an underappreciated cause of stroke in KF-HD.

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