The aim of this study was to estimate the incidence of COVID-19 disease in the French national population of dialysis patients, their course of illness and to identify the risk factors associated with mortality. Our study included all patients on dialysis recorded in the French REIN Registry in April 2020. Clinical characteristics at last follow-up and the evolution of COVID-19 illness severity over time were recorded for diagnosed cases (either suspicious clinical symptoms, characteristic signs on the chest scan or a positive reverse transcription polymerase chain reaction) for SARS-CoV-2. A total of 1,621 infected patients were reported on the REIN registry from March 16th, 2020 to May 4th, 2020. Of these, 344 died. The prevalence of COVID-19 patients varied from less than 1% to 10% between regions. The probability of being a case was higher in males, patients with diabetes, those in need of assistance for transfer or treated at a self-care unit. Dialysis at home was associated with a lower probability of being infected as was being a smoker, a former smoker, having an active malignancy, or peripheral vascular disease. Mortality in diagnosed cases (21%) was associated with the same causes as in the general population. Higher age, hypoalbuminemia and the presence of an ischemic heart disease were statistically independently associated with a higher risk of death. Being treated at a selfcare unit was associated with a lower risk. Thus, our study showed a relatively low frequency of COVID-19 among dialysis patients contrary to what might have been assumed.

Background The French healthcare system offers the possibility of increasing the use of peritoneal dialysis (PD) by involving in patient care nurses who work in the private system. Objective This study was conducted to evaluate the impact of a private home-nurse network on one dialysis program. Methods This was a retrospective study of 239 dialysis patients who started dialysis in our center between 1 January 1998 and 31 December 2003. Results Of these 239 patients, 142 were treated with hemodialysis and 97 with PD during the study period. Among the PD patients, 36 of 97 were treated with assisted PD and 61 of 97 with self-care PD. Assisted-PD patients were older (74 ± 10 vs 52 ± 18 years, p < 0.001) and presented more comorbidity (Charlson Comorbidity Index 7 ± 2.5 vs 4.3 ± 2.4, p < 0.05) compared with self-care patients. Continuous ambulatory PD was the modality of choice in the assisted group (32/36). Assisted patients were frequently hospitalized (31/36); actuarial survival free of hospitalization at 6 months was 46%. Patients with nurse assistance had a high risk of peritonitis (actuarial survival free of peritonitis: 52% at 1 year). Technique survival was 85% at 6 months and 58% at 1 year. Actuarial patient survival was 90% at 6 months and 83% at 1 year. Conclusion Assisted PD enables increased use of PD in incident dialysis patients. However, in view of the comorbidities of the assisted-PD patients, the need for frequent hospitalization has to be taken into account in such a program.

Once on hemodialysis, SVLPD patients rapidly increased protein intake. Nutritional status improved in all patients, with a gain in fat mass in all, and a gain in lean body mass in SVLPD men only. These data indicate that treatment with a SVLPD prior to hemodialysis initiation is nutritionally safe.

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