scholarly journals New strategies to prevent Staphylococcus aureus infections in peritoneal dialysis patients.

1998 ◽  
Vol 9 (4) ◽  
pp. 669-676
Author(s):  
A Vychytil ◽  
M Lorenz ◽  
B Schneider ◽  
W H Hörl ◽  
M Haag-Weber

The importance of Staphylococcus aureus as etiological agent for catheter-related infections and peritonitis in peritoneal dialysis patients is well established. To evaluate groups at risk of developing Staphylococcus aureus infections, nasal and exit-site cultures were performed in 76 peritoneal dialysis patients monthly over a period of 3 yr. The risk of Staphylococcus aureus catheter infection was significantly higher in diabetic (group 1) and immunosuppressed (group 2) patients compared with nondiabetic and nonimmunosuppressed (group 3) patients. In diabetic patients, Staphylococcus aureus-positive nasal cultures were more frequent than positive cultures taken from the bland exit-site (73.3% versus 60.0%). On the other hand, both positive and negative exit-site cultures had a better prognostic value for Staphylococcus aureus catheter infection compared with nasal cultures. In immunosuppressed patients, both nasal and exit-site carriages were associated with a very high risk of Staphylococcus aureus catheter infection, but nasal swabs were far more often positive than swabs from the bland exit-site (72.7% versus 25.0%). However, the risk of infection was also high for non-nasal and non-exit-site carriers in this group. In nondiabetic and nonimmunosuppressed patients, the risk of Staphylococcus aureus catheter infection was increased only if two or more positive nasal cultures were detected. It is concluded that in diabetic patients, antibiotic prophylaxis should be performed in all Staphylococcus aureus exit-site carriers. All immunosuppressed patients should be treated prophylactically. In contrast, in nondiabetic and nonimmunosuppressed patients, prophylactic treatment should be considered only in nasal carriers with two or more positive cultures. The overall low peritonitis rate does not influence this prevention strategy.

1985 ◽  
Vol 5 (3) ◽  
pp. 157-160 ◽  
Author(s):  
Neal R. Glass ◽  
Douglas T. Miller ◽  
Hans W. Sollinger ◽  
Stephen W. Zimmerman ◽  
David Simpson ◽  
...  

The authors reviewed the course of 56 peritoneal dialysis patients after renal transplantation to determine the influence of this mode of dialysis on the results of transplantation. Three subgroups were analyzed separately because of marked differences in results. Group 1 was a historical group of 13 diabetic and two nondiabetic recipients of cadaveric grafts transplanted before 1982 who received standard immunosuppression with steroids and azathioprine only, and antirejection therapy with steroids and/or antithymocytic globulin (ATG). In this group results were poor: only 100/o of grafts and 670/o of patients survived two years or more. Group 2, the current group of cadaveric recipients, consists of 11 diabetic and nine nondiabetic patients transplanted since 1982; these patients received standard immunosuppression with low-dose steroids, azathioprine, and a two-week course of prophylactic ATG beginning within one day of transplantation; rejection was treated with high doses of oral steroids. In this second group, results were good: 630/o of the grafts are functioning and 100% of patients have survived for up to two years. Group 3, consisting of 21 recipients of living donor kidneys, had excellent results with 1000/o graft and patient survival up to five years. Rejection (N = 11), death (N = 5) and renovascular problems (N = 3) caused the 19 graft losses. In most patients the dialysis catheters were removed three weeks to three months after transplantation when renal function was stable. There were two minor complications and no infections related to the catheters. We conclude that: a) excellent transplant results can be achieved in peritoneal dialysis patients, most of whom are diabetic and receive cadaveric grafts, b) the peritoneal dialysis catheter is not a significant source of peritransplant morbidity and therefore c) peritoneal dialysis is appropriate for patients awaiting renal transplantation and should not bias against their selection for transplantation. The published literature on kidney transplantation in patients on peritoneal dialysis is sparse, suggesting that it is not, and perhaps should not be common practice to transplant these patients. This study and review of the literature was undertaken 1) to characterize peritoneal dialysis patients undergoing renal transplantation at our center, 2) to determine the results of transplantation in this group, 3) to evaluate the risk to these patients from the peritoneal dialysis catheter itself and 4) to compare our experience with the literature concerning renal transplantation of peritoneal dialysis patients.


2003 ◽  
Vol 23 (2_suppl) ◽  
pp. 153-158 ◽  
Author(s):  
Sunny S.H. Wong ◽  
Kwok Hong Chu ◽  
Au Cheuk ◽  
Wai Kay Tsang ◽  
Samuel K.S. Fung ◽  
...  

Objective We evaluated the effectiveness of local application of mupirocin ointment at the catheter exit site in preventing exit-site infection and peritonitis attributable to gram-positive organisms in continuous ambulatory peritoneal dialysis patients. Methods This prospective randomized controlled trial included 154 patients. They were randomly allocated to a mupirocin-treated group (group M) and a control group (group C). Group M included 73 patients (47.4%) who were instructed to apply mupirocin ointment to the catheter exit site once daily after the routine daily exit-site dressing. Group C included 81 patients (52.6%) who continued their usual daily exit-site care without applying mupirocin. The two groups were followed to see whether there would be any difference in the frequency of exit-site infection and peritonitis or in the infecting organisms. Results Interim data were collected at 5 months after the start of the study. Those data showed a significantly lower incidence of exit-site infection and peritonitis attributable to gram-positive organisms in group M as compared with group C. The incidence of gram-positive exit-site infection in group C was 1 episode per 36.8 patient–months; in group M, the incidence was 1 episode per ∞ patient–months (0 incidence in 5 months, p < 0.05). The incidence of gram-positive peritonitis in group C was 1 episode per 40.5 patient–months; in group M, the incidence was 1 episode per 365 patient–months ( p < 0.05). Mupirocin treatment had no significant effect on the incidence of exit-site infection and peritonitis attributable to other organisms. Before mupirocin treatment, we saw a trend toward higher infection rates in diabetic patients and nasal carriers of Staphylococcus aureus as compared with non diabetic patients and nasal non carriers, although the differences were not statistically significant. Mupirocin brought the infection rate attributable to gram-positive organisms to an equally low level in diabetic and non-diabetic patients, and in nasal carriers and nasal non carriers of S. aureus. No adverse effect of local application of mupirocin was reported. Conclusion Local application of mupirocin ointment at the catheter exit site is a safe and effective method of preventing exit-site infection and peritonitis involving gram-positive organisms.


1993 ◽  
Vol 13 (2_suppl) ◽  
pp. 232-335 ◽  
Author(s):  
Beth Piraino ◽  
Jeffrey A. Perlmutter ◽  
Jean L. Holley ◽  
Judith Bernardini

Although the definition of S. aureus nasal carriage in peritoneal dialysis patients Is variable, carriage is often defined as 2 or more positive cultures for S. aureus. We Investigated the relationship between S. aureus Infections and nasal carriage (defined as 1 or more positive nose cultures) In 138 patients on peritoneal dialysis. By this definition, approximately 50% of the patients were carriers. The rates of S. aureus exit-site infection (0.28/year vs 0.43/year, p<0.001) and peritonitis (0.08/year vs 0.20/year, p<0.001) were lower in the noncarriers (patients with no positive nose cultures) than in those patients who had 1 or more positive nose cultures. Patients with only 1 positive nose culture had a similar S. aureus exit-site infection rate (0.31/year vs 0.28/year), but a higher peritonitis rate (0.24/year vs 0.08/year, p<0.001) compared to those petients with no positive nose cultures. However, patients with 2 or more positive nose cultures were at Increased risk for both S. aureus exit-site Infections and peritonitis. This relationship held even when only petients with frequent nose cultures were Included In the analysis. Thus patients with even 1 positive nose culture for S. aureus are at risk for S. aureus peritonitis and should not be classified as noncarriers.


1998 ◽  
Vol 9 (2) ◽  
pp. 290-296
Author(s):  
A Vychytil ◽  
M Lorenz ◽  
B Schneider ◽  
W H Hörl ◽  
M Haag-Weber

Catheter-related infection is one of the most important causes of technical dropout in peritoneal dialysis patients. Both the type of cultured organism and the extent of inflammation are well known prognostic factors for the outcome of these infections. From December 1994 to November 1996, 96 catheter-related infections without simultaneous peritonitis occurred in 49 of 86 peritoneal dialysis patients treated in this study. During the observation period, only single-cuff catheters were used. Staphylococcus aureus was the most common organism cultured (51%). Involvement of the tunnel was diagnosed by sonography in 57.1% of all Staphylococcus aureus cases, but only in 26.1% of Staphylococcus epidermidis-related exit-site infections. Ten of the 96 catheter-related infections (10.4%) resulted in catheter loss. Catheter removal was necessary only in cases of deep tunnel infection caused by Staphylococcus aureus. The number of gram-negative catheter infections was too small to allow conclusive analysis. Although sonography of the catheter tunnel is now well established in the early diagnosis of tunnel infections, no clear guidelines exist for management of these infections. In this study, patients with deep tunnel infection who did not require catheter removal showed a significant decline of the hypoechogenic area around the cuff (from 7.02 +/- 0.70 to 3.75 +/- 1.04 mm, P < 0.002) 2 wk after initiation of therapy. No significant decline was observed in patients who later lost their catheters. On the basis of these data, it is concluded that in cases of exit-site and superficial tunnel infection, conservative treatment should be performed. In cases of deep tunnel infection without peritonitis caused by Staphylococcus aureus, antibiotic treatment should be started and sonographic examination should be performed every second week. If the hypoechogenic area around the cuff decreases (> 30%), conservative treatment should be prolonged. In cases without sonographic improvement (< 30%) 2 wk after therapy, catheter removal is recommended.


2009 ◽  
Vol 29 (2_suppl) ◽  
pp. 78-82 ◽  
Author(s):  
Yanjun Li ◽  
Jie Dong ◽  
Li Zuo

Objective We investigated whether patients with gastrointestinal (GI) symptoms were prone to be diagnosed as malnourished by subjective global assessment (SGA) by simultaneously evaluating SGA and other indices of nutrition in a cross-sectional survey of peritoneal dialysis (PD) patients. Patients and Method From June 2006 to June 2007, 214 PD patients were involved in the study. We recorded results of a GI symptoms questionnaire (GSQ) and SGA. Other indices of nutrition included dietary intake, chemistry examination, anthropometry, handgrip strength, and lean body mass measured by creatinine kinetics. Results Mean age of the 214 PD patients enrolled in the study was 60.22 ± 14.02 years, and mean dialysis duration was 60.22 ± 14.02 months. Of the 214 patients, 56 (27.16%) were diagnosed as malnourished by SGA. The mean GSQ scores were 9.37 ± 1.71 (range: 8 – 17). There were 90 patients with GSQ scores of 8 (group 1), 80 patients with scores of 9 or 10 (group 2), 44 patients with scores of 11 or more (group 3). The prevalence of malnutrition diagnosed by SGA was significantly different in the three groups: 15.56% in group 1, 27.5% in group 2, and 45.45% in group 3 ( p = 0.02). However, we observed no difference between the three groups in mid-arm circumference, skinfold thickness (biceps, triceps, subscapular, and suprailiac), daily protein and energy intake, handgrip strength, lean body mass, and serum albumin and prealbumin levels ( p > 0.05). Conclusions Our results showed that the reliability of SGA in PD patients with GI symptoms remains worth exploring. These patients are possibly diagnosed as malnourished by SGA, although many other indices of nutrition are not necessarily bad.


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