Key result
Haemodialysis systematically increased P-wave duration from 131 to 140 ms (P<0.001), indicating intra-atrial conduction slowing that may favor atrial fibrillation.
Why the study?
Do haemodialysis-induced electrolyte variations alter atrial electrophysiology in patients with end-stage renal disease?
Observational (n=20)
Do haemodialysis-induced electrolyte variations alter atrial electrophysiology in patients with end-stage renal disease?
Absolute Event Rate: 140% vs 131%
p-value: p=<0.001
Haemodialysis-induced electrolyte shifts, particularly potassium reduction, prolong P-wave duration and decrease atrial effective refractory period, potentially creating an arrhythmogenic substrate for atrial fibrillation.
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May warrant closer AF monitoring during haemodialysis in ESRD; leaves open whether electrolyte modification reduces arrhythmia risk.
Severi et al. (2010) conducted an observational in End-stage renal disease (n=20). Haemodialysis vs. Before haemodialysis was evaluated on P-wave duration (PWd) (p=<0.001). Haemodialysis systematically increased P-wave duration from 131 to 140 ms (P<0.001), indicating intra-atrial conduction slowing that may favor atrial fibrillation.
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