Infection of peritoneal dialysis fluid is a major complication in patients treated with peritoneal dialysis (PD). The aim of catheter emergence care is to reduce bacterial contamination of the peritoneum. The recommendations of the International Society of Peritoneal Dialysis do not provide information on the frequency of care delivery or the usefulness of a sterile adhesive dressing. Thus each treatment center applies a protocol of its own. Dressing is common practice although its safety and interest are not demonstrated.

The usefulness of dressing is still to be demonstrated. On the other hand, the efficacy of the application in prevention of a cream of mupirocin at emergence on the reduction of the risk of infection with staphylococcus aureus (SA), the most frequent germ found in peritonitis, has been demonstrated. A Spanish study showed that during a peritoneal infection at SA the site most frequently colonized by a similar strain of SA was the emergence of the catheter.

It can be considered that an infection of the dialysis liquid in PD is not only related to the quality of emergency care but also to manipulations during exchanges.

Given the number of patients involved in PD in France, it is difficult to obtain sufficient power to formally demonstrate the non-inferiority of the absence of dressing.

Therefore, the investigators propose a descriptive, exploratory study of events that may occur in PD when a dressing is not applied. This is a step prior to performing a multicenter randomized comparative study that will aim to show the non-inferiority of the absence of dressing compared to the application of a dressing on the incidence of fluid infection. peritoneal dialysis.

Inclusion Criteria:

• patient who has been informed and has given free and informed consent
• patient affiliated to a social security scheme

Exclusion Criteria:

• inclusion of the patient in another biomedical research protocol that influences the risk of infection
• burial of the catheter before the initiation of dialysis treatment second attempt at treatment with peritoneal dialysis following catheter removal and resection
• patient under curatorq
• pregnant woman