Key result
Every 1% increase in right ventricular diameter during the first 2 years of peritoneal dialysis was associated with a 68.2% higher risk of all-cause mortality.
Why the study?
Peritoneal dialysis can be associated with abnormal cardiac structure and function and increased mortality risk, but the dynamic echocardiographic changes during the first 2 years of therapy and their links to mortality needed evaluation.
Does peritoneal dialysis affect cardiac structure and function over 2 years in patients with end-stage renal disease?
Cohort (n=72)
No
Does peritoneal dialysis affect cardiac structure and function over 2 years in patients with end-stage renal disease?
In patients undergoing peritoneal dialysis, right ventricular diameter significantly increases over the first 2 years, and this structural deterioration is associated with a higher risk of all-cause mortality.
Answers are grounded in this paper and cite their sources.
RV enlargement on PD was associated with higher mortality; leaves open whether echocardiography-guided interventions improve survival.
BACKGROUND: Peritoneal dialysis (PD) can be associated with abnormal cardiac structure and function and increased mortality risk. Therefore, in this study, we analyzed the cardiac structure and function dynamic changes using echocardiography during the first 2 years of PD therapy. We also assessed its associations with all-cause mortality risk after 2 years of follow-up. METHODS: End-stage renal disease (ESRD) patients that have started PD from 2011 to 2017, and had echocardiography at baseline and years 1 and 2, were included in this study. Echocardiographic parameters were compared between baseline and year 2. Multivariable Cox models were used to estimate the association between echocardiographic parameters changes and all-cause mortality risk. RESULTS: We finally enrolled 72 PD patients in this study. The mean right ventricular diameter (RVD) increased from baseline (18.31 mm) to year 1 (18.75 mm) and year 2 (19.65 mm). We also observed a significant decrease in cardiac output (CO) between baseline and year 2. Additionally, a slight decrease trend in ejection fraction (EF) was observed. Finally, every 1 % increase in RVD was associated with a 68.2 % higher mortality risk after dialysis (HR, 1.682; 95 % CI, 1.017-2.783). CONCLUSIONS: Our results demonstrated a susceptibility for deteriorated right cardiac structure and function during the first 2 years of PD treatment. Also, higher all-cause mortality risk was observed after 2 years of PD. Altogether, these results highlighted the need for additional focus on regular echocardiographic examinations during long-term PD management. TRIAL REGISTRATION: The PD-CRISC cohort, registered with the Chinese Clinical Trial Registry ( ChiCTR1900023565 ).
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Zhu et al. (2021) conducted a cohort in End-stage renal disease (ESRD) undergoing peritoneal dialysis (n=72). Increase in right ventricular diameter (RVD) vs. No increase or lesser increase in RVD was evaluated on All-cause mortality risk associated with echocardiographic parameter changes (HR 1.682, 95% CI 1.017-2.783, p=0.043). Every 1% increase in right ventricular diameter during the first 2 years of peritoneal dialysis was associated with a 68.2% higher risk of all-cause mortality.
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