Erratum: Development and Validation of a New Dry Weight Estimation Method Using Single Frequency Bioimpedance in Hemodialysis Patients

<i>Background:</i> We proposed a new method to estimate dry weight (DW) using single frequency bioimpedance. <i>Methods:</i> We hypothesized that the change in whole body resistance at 50 kHz (R₅₀) was proportional to the ultrafiltration volume (UFV) during a hemodialysis (HD) session. When the targeted resistance estimated in healthy subjects was reached, the patient achieved his/her DW. UFV and R₅₀ were monitored in 40 HD patients. Another 43 HD patients were stratified into 2 groups to validate this method. <i>Results:</i> The change in whole body resistance was proportional to UFV in each of the 40 HD patients. In the DW_decrease group, pre-dialysis systolic blood pressure (n = 29, 154.5 ± 22.8 vs. 146.9 ± 22.3, p &lt; 0.05) and antihypertensive medicine (4.7 ± 3.6 vs. 3.3 ± 2.2, p &lt; 0.05) decreased without adverse symptoms change. In the DW_increase group, the number of adverse symptoms in 1 week (n = 14, 26 vs. 6, p &lt; 0.05) decreased without a change in systolic blood pressure. <i>Conclusion:</i> This method may become a convenient and cheaper way to estimate DW in HD patients.