In patients with advanced CKD, dyskalemias tied with increased hospital visits: Study
In patients with advanced chronic kidney disease (CKD), dyskalemias are associated with a higher risk of hospital/ emergency room (ER) visits, according to a recent study published in the Journal of Managed Care & Specialty Pharmacy.
Patients with advanced chronic kidney disease (CKD) are at high risk for dyskalemias, which may induce arrhythmias that require immediate emergent or hospital care. The association of dyskalemias with short-term hospital/emergency room (ER) visits in advanced chronic kidney disease (CKD) is understudied.
A study was conducted to assess the association of dyskalemias with short-term hospital/ER visits in advanced chronic kidney disease (CKD) population.
From among 102,477 US veterans transitioning to dialysis from 2007 to 2015, we identified 21,366 patients with 2 predialysis outpatient eGFR < 30 ml/min/1.73m2 90-365 days apart (with the second eGFR serving as the index date) and at least 1 potassium (K) in the baseline period (1 year before index) and 1 outpatient K (oK) in the follow-up (1 year after the index but before dialysis initiation). We examined the association of time-varying hypokalemia (K < 3.5 mEq/L) and hyperkalemia (K > 5.5 mEq/L) vs referent (3.5-5.5 mEq/L) with separate hospital and ER visits within 2 calendar days following each oK value over the 1-year follow-up period from the index. We used generalized estimating equations with binary distribution and logit link to model the exposure-outcome relationship adjusted for various confounders. We conducted various subgroup and sensitivity analyses to test the robustness of our results.
Results:
Over the 1-year follow-up, 125,266 oK measurements were observed, of which 6.8% and 3.7% were classified as hyper- and hypokalemia, respectively. In the multivariable-adjusted model, hyperkalemia (adjusted odds ratio [aOR] = 2.04; 95% CI = 1.88-2.21) and hypokalemia (aOR = 1.66; 95% CI = 1.48-1.86) were associated with significantly higher odds of hospital visits. Similarly, hyperkalemia (aOR = 1.83; 95% CI = 1.65-2.03) and hypokalemia (aOR = 1.24; 95% CI = 1.07-1.44) were associated with significantly higher odds of ER visits. Results were robust to subgroups and sensitivity analyses.
Thus, in patients with advanced CKD, dyskalemias are associated with a higher risk of hospital/ER visits. Interventions targeted at lowering the risk of dyskalemias might help in reducing the health care utilization and associated economic burden among patients with advanced chronic kidney disease (CKD) experiencing dyskalemias.
Reference
Dashputre AA, Gatwood J, Sumida K, et al. Association of dyskalemias with short-term health care utilization in patients with advanced chronic kidney disease (CKD) published in the Journal of Managed Care & Specialty Pharmacy. 27(10):1403-1415.
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