Dialysis Timing: What Actually Decides When You Start

Three people can have the exact same kidney number, and completely different futures. One needs dialysis this year. One never will. Nephrologist Dr. Sean Hashmi breaks down the biggest myth in kidney care: that a single eGFR number decides when you need dialysis. There is no eGFR threshold that automatically triggers dialysis, according to a 2024 review in JAMA. What actually decides timing is a combination of symptoms, fluid status, blood acid level, and potassium, not a single lab value. Dr. Hashmi walks through the landmark IDEAL trial, a randomized study of 828 people that found starting dialysis early bought no survival benefit at all, and explains why preparing early and starting early are two completely different things. He closes with the one medication class proven to slow kidney decline, and a simple two-column tracking method to bring to every appointment. References: Flythe JE, Watnick S. Dialysis for chronic kidney failure: a review. JAMA. 2024;332(18):1559-1573. Cooper BA, Branley P, Bulfone L, et al. A randomized, controlled trial of early versus late initiation of dialysis. N Engl J Med. 2010;363(7):609-619. Heerspink HJL, Stefánsson BV, Correa-Rotter R, et al. Dapagliflozin in patients with chronic kidney disease. N Engl J Med. 2020;383(15):1436-1446. The EMPA-KIDNEY Collaborative Group. Empagliflozin in patients with chronic kidney disease. N Engl J Med. 2023;388(2):117-127. Want the evidence without the hype? Sign up for the free weekly newsletter at selfprinciple.org/newsletter. The information in this content is for educational purposes only and does not constitute medical advice. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay seeking it because of something you have seen in this content. The views expressed here are my own and do not represent the views of my employer or any affiliated institution. Never start, stop, or change the dose of any prescription medication without consulting your physician. Practice kindness and gratitude.