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עמוד בית
Sat, 07.12.24

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June 2010
R. Cleper, M. Davidovits, Y. Kovalski, D. Samsonov, J. Amir and I. Krause

Background: Peritonitis is a major complication of chronic peritoneal dialysis therapy. It is recommended that each center monitor infection rates in order to define the local microbiological profile and implement an appropriate empiric antibiotic regimen.

Objectives: To analyze the microbiological profile of peritonitis in our pediatric dialysis unit and identify local predisposing factors.

Methods: In this retrospective study we reviewed the files of children treated with chronic PD[1] during the 10 year period 1997–2007.

Results: Eighty peritonitis episodes were recorded in 29 children (20 male, 9 female) aged 0.1–18.5 years (median 11.75) treated with peritoneal dialysis for 6–69 months (median 19) for a total of 578 patient-months. The annual peritonitis rate was 1.66/patient. The main pathogens were coagulase-negative Staphyloccocus (32.5%) and Pseudomonas spp. (16%), which were also cultured in most cases (64–69%) from the exit site during the 3 months preceding peritonitis. No peritonitis occurred in 31% of the patients (median age 12.5 years). All patients less than 5 years old had at least one peritonitis episode. Contaminating conditions (gastrostomy, enuresis, diaper use), found in 44% of the study group, and first infection within 6 months from starting PD were significantly associated with an increased peritonitis rate (P = 0.01, P = 0.009, respectively). Recurrent peritonitis led to a switch to hemodialysis in 18% of patients. There were no deaths.

Conclusions: The risk factors for peritonitis in our study were: first infection within less than 6 months from starting treatment, Pseudomonas exit-site colonization, and contaminating conditions (gastrostomies, diaper use, enuresis). These susceptible subgroups as well as very young age (< 5 years) at starting PD should be especially targeted during training of caregivers and follow-up to prevent later complications.
 

[1] PD = peritoneal dialysis

June 2008
I. Kassis, Y. Kovalski, D. Magen, D. Berkowitz and I. Zelikovic

Background Voiding cystourethrogram is performed 3–6 weeks after urinary tract infection. This prolongs the interval of prophylactics, reducing the likelihood of performing the procedure.

Objectives To investigate the yield and potential risks/benefits of early compared to late-performance VCUG[1] after UTI[2].

Methods We conducted a prospective study of 84 previously healthy children < 5 years old admitted from October 2001 to November 2002 with first documented UTI. We then divided the 78 patients who had VCUG into two groups and compared them to a control group:  group A – 49 children in whom VCUG was performed within 10 days, group B – 29 children in whom VCUG was performed > 10 days after UTI, and a historical control group C – 82 children in whom VCUG was performed > 4 weeks following UTI.

Results VCUG was performed in 48/48 (100%), 6/35 patients (17.1%), 34/116 patients (29.3%) and vesicoureteral reflux was demonstrated in 38.8%, 37.9%, 39% in groups A, B, C respectively. No significant difference was found between these groups in terms of incidence of VUR[3] and severity and grading of reflux within each group. One case of UTI secondary to VCUG occurred in a patient in whom the procedure was performed 4 months after the diagnosis.

Conclusions Performing VCUG early does not influence detection rate, severity of the VUR, or risk of secondary infection; it shortens the period of prophylactic use and increases performance rate of VCUG, thereby minimizing the risk of failure to detect VUR. The traditional recommendation of performing VCUG 3–6 weeks after the diagnosis of UTI should be reevaluated.






[1] VCUG = voiding cystourethrogram

[2] UTI = urinary tract infection

[3] VUR = vesicoureteral reflux


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