Determinants of catheter loss following continuous ambulatory peritoneal dialysis peritonitis.

BACKGROUND: Few patients are able to resume peritoneal dialysis (PD) therapy after an episode of peritonitis that requires catheter removal. PD catheter loss is therefore regarded as an important index of patient morbidity. The aim of the present study was to evaluate factors influencing catheter loss in patients suffering from continuous ambulatory PD (CAPD) peritonitis. Patients and METHODS: We retrospectively reviewed 579 episodes of CAPD peritonitis from 1999 to 2006 in a tertiary-care referral hospital. Demographic, biochemical, and microbiological characteristics were recorded. Episodes resulting in PD catheter removal (n = 68; 12%) were compared by both univariate and multivariate analyses with those in which PD catheters were preserved. RESULTS: The incidence of PD catheter loss increased as the number of organisms cultured increased (p = 0.001). Also, PD catheter removal was more likely to occur after peritonitis episodes with low serum albumin level (p = 0.004), those with long duration of PD effluent leukocyte count remaining above 100/microL (p < 0.001), those with concomitant tunnel infection (p < 0.001), those with concomitant exit-site infection (p = 0.005), and those with presence of catastrophic intra-abdominal visceral events (p < 0.001). Duration on PD preceding the peritonitis episode was of borderline significance (p = 0.080). On the contrary, initial PD effluent leukocyte count and serum level of C-reactive protein were not predictive of PD catheter loss. Micro-organisms of the Enterobacteriaceae family were the major pathogens responsible for PD catheter loss following polymicrobial peritonitis. Furthermore, we found that there was no association between polymicrobial peritonitis and the catastrophic intra-abdominal visceral event, although both resulted in a greater incidence of PD catheter loss. Among the single-organism group in our population, the microbiological determinants of PD catheter loss included fungi (p < 0.001), anaerobes (p = 0.018), and Pseudomonas sp (borderline significance: p = 0.095). CONCLUSION: PD catheter loss as a consequence of peritonitis is related primarily to hypoalbuminemia, longer duration of PD effluent leukocyte count remaining above 100/muL, the etiologic source of the infection, and the organism causing the infection. Peritonitis associated with concomitant tunnel or exit-site infections and abdominal catastrophes were more likely to proceed to PD catheter loss. The microbiological determinants of PD catheter loss in the present study included polymicrobial infections caused by Enterobacteriaceae as well as monomicrobial pseudomonal, anaerobic, and fungal infections.     

Antimicrobial treatment of peritonitis associated with continuous ambulatory peritoneal dialysis.

A multitude of therapeutic regimens have been proposed for the management of peritonitis associated with continuous ambulatory peritoneal dialysis (CAPD). There are, however, few clinical trials that have evaluated the efficacy of these proposed regimens in a prospective, comparative fashion. This retrospective report is a tabulation of the published data on antimicrobial treatment of CAPD-related peritonitis. The results are presented for combination and mono-drug therapies; Gram-positive bacterial, Gram-negative bacterial and fungal infections; intravenous, oral and intraperitoneal (i.p.) routes of drug administration; various dosages and dosing intervals; and clinical response and relapse rates. The apparent optimal combination regimen for empiric treatment of peritonitis is vancomycin administered in 1 dialysis exchange/week with ceftazidime. This regimen avoids the toxicity associated with the use of aminoglycosides while maintaining effectiveness.     

持续非卧床式腹膜透析患者合并继发性腹膜炎

目的 了解持续非卧床式腹膜透析（continuous ambulatory peritoneal dialysis,CAPD）合并继发性腹膜炎的临床表现特点,以提高对此症的诊治水平。方法对在2003年1月～2003年4月期间澳门仁伯爵综合医院肾科收治的3例CAPD患者合并继发性腹膜炎的临床资料进行回顾性分析,并以同期收治的8例CAPD相关性腹膜炎为对照组,对两组患者的年龄、CAPD时间和化验结果进行统计分析。结果3例继发性腹膜炎患者均为女性,年龄（75.3±5.5）岁,既往无腹膜炎史。在入院时,所有患者均被误诊为CAPD相关性腹膜炎。对两例患者进行腹部X线平片检查分别可见膈下游离气体和小肠梗阻征象。治疗延误3～28天,最后诊断分别为回肠穿孔、乙状结肠缺血性坏死和绞窄性切口疝。两组患者的年龄、血红蛋白、血白细胞（WBC）、血清白蛋白、C反应蛋白（CRP）和入院时腹膜透析液WBC计数（D1）无显著性差异（P〉0.05）;继发性腹膜炎和CAPD相关性腹膜炎的不同点表现在：①CAPD时间明显长[（24.6±7.5）月vs（10.5±8.2）月,P=0.035];②多数患者在发病早期可见粉红色腹膜透出液;③对抗炎治疗效果差（P〈0.05）;④病死率高（67%vs 0）。结论CAPD患者合并继发性腹膜炎的临床表现和CAPD相关性腹膜炎有所不同,其临床误诊率和病死率高,应引起临床医生重视。     

Bacteroides peritonitis associated with colon cancer in a continuous ambulatory peritoneal dialysis patient.

Peritonitis is not an uncommon complication of continuous ambulatory peritoneal dialysis (CAPD). We report a case of Bacteroides fragilis-induced bacterial peritonitis, probably due to clinically occult malignancy, in a 76-year-old woman on CAPD.     

Acinetobacter peritonitis in patients receiving continuous ambulatory peritoneal dialysis

Little is written on peritonitis caused by Acinetobacter species in patients receiving continuous ambulatory peritoneal dialysis (CAPD). A retrospective review of medical records, dialysis unit charts, and microbiology culture logbooks identified 18 such patients treated at our hospital. All cases were community-acquired, and no common epidemiologic link between cases was detected. The most common manifestations were abdominal pain or tenderness (13 patients) and cloudy dialysate (six patients); only two patients had fever. Peritonitis without localized intra-abdominal abscess formation occurred in all instances. Intraperitoneal aminoglycoside therapy for 3 to 14 days (mean 10.7 days) eradicated infection in 14 cases. Two patients were successfully treated with 4 days of intraperitoneal gentamicin followed by 8 days of oral ciprofloxacin; another was cured with 10 days of IV ceftriaxone. Tenckhoff catheter removal was necessary in only one patient. Unlike pseudomonal or fungal peritonitis associated with CAPD, infection due to Acinetobacter species is generally responsive to antimicrobials alone.     

Fluconazole therapy for fungal peritonitis in continuous ambulatory peritoneal dialysis (CAPD): a case report

Fluconazole proved effective in treating fungal peritonitis caused by Trichosporon cutaneum. Fluconazole seems to offer several advantages over other antifungal drugs in the treatment of fungal peritonitis in continuous ambulatory peritoneal dialysis (CAPD) patients.     

Branhamella catarrhalis peritonitis in two continuous ambulatory peritoneal dialysis patients

Two cases of peritonitis caused by Branhamella catarrhalis are presented. Both occurred in CAPD patients dialyzed and hospitalized at the same institution, but no common source of infection could be found. Branhamella catarrhalis infections can be difficult to treat and cause significant morbidity if not recognized early and treated aggressively with appropriate antibiotics.     

Treatment of peritonitis in continuous ambulatory peritoneal dialysis (CAPD) with intraperitoneal cefazolin and gentamicin

Between 1983 and 1988 57 peritonitis episodes in an unselected patient population were initially treated with intraperitoneal cefazolin and gentamicin. The loading dose consisted of 500 mg cefazolin/L dialysate and 40 mg gentamicin/L dialysate. The maintenance dosage was 125 mg cefazolin and 8 mg gentamicin per liter dialysate. Forty-five (78.9%) patients were primarily cured with this regimen (responder group = RG). Twelve patients (21.1%) did not respond to the initial therapy (nonresponder group = NG). Eight peritonitis episodes in the NG (14.0% of all patients) were caused by tunnel infections and 2 by diverticulitis (3.5%). The cure rate in patients without tunnel infection or bowel disease was 95.7%. A relapse occurred in 2 patients (3.5%). Duration of therapy was assessed by daily white blood cell count (WBC) in the effluent and treatment was discontinued when the WBC was less than 100/microliters for 3 days. The mean duration of therapy with cefazolin and gentamicin was 8.1 days in the RG and 6.0 days in the NG. Nonresponders were subsequently treated with a modified antibiotic regimen on an average 11.9 days.     

Tenckhoff catheter replacement or intraperitoneal urokinase: a randomised trial in the management of recurrent continuous ambulatory peritoneal dialysis (CAPD) peritonitis

A randomised trial, comparing Tenckhoff catheter replacement as a one-stage procedure and i.p. urokinase, was undertaken in the management of recurrent continuous ambulatory peritoneal dialysis (CAPD) peritonitis. In addition to appropriate i.p. antibiotic treatment, 17 patients received i.p. urokinase (5000 i.u.) on the second and fourth days of antibiotic treatment, and 14 patients underwent CAPD catheter replacement. An additional six patients also underwent catheter replacement following the recurrence of peritonitis after urokinase treatment. The subsequent recurrence rate of peritonitis following CAPD catheter replacement (5%) was significantly less than after urokinase (41%) (p less than 0.001). Fourteen patients remained free of peritonitis for at least three months after catheter replacement, and five patients were peritonitis-free following urokinase for this period.     

持续性非卧床腹膜透析患者腹膜炎发生的危险因素分析

目的探讨非卧床腹膜透析患者腹膜炎发生的危险因素。方法选取我院2017年1月至2018年12月收治的慢性肾衰竭持续性非卧床腹膜透析患者260例作为研究对象,采用一般情况调查问卷收集患者信息,统计记录腹膜炎发生情况,采用多因素logistic回归分析确定腹膜炎发生的影响因素。结果 260例患者中发生腹膜炎的73例,占28. 08%;多因素logistic回归分析显示腹膜炎发生的独立危险因素有高龄、低文化水平、合并糖尿病、透析时长、总蛋白(TP)水平下降、血钙(Ca)水平下降。结论我院慢性肾衰竭持续性非卧床腹膜透析患者相关性腹膜炎发生率为28. 08%,腹膜炎发生独立危险因素为高龄、低文化水平、伴有糖尿病、透析时间长、总蛋白水平下降、血钙水平下降,结合危险因素制定防范干预措施非常重要。     

Randomized study of peritonitis with conventional versus O-set techniques in continuous ambulatory peritoneal dialysis.

We performed a prospective randomized trial, comparing the incidence of peritonitis between a flush-disconnect (O-System, Baxter, Deerfield, IL) (OS) and a conventional (System II, Baxter) (CS) continuous ambulatory peritoneal dialysis (CAPD) method. Sixty consenting patients with no significant physical disabilities who commenced CAPD after May 1987 were entered and followed for a minimum of 12 months. Thirty were placed on the OS system and 30 were placed on CS. Age, gender, and time for training did not differ significantly. The period of observation for OS was 375 months; CS was observed for 430 months. OS patients experienced 28 episodes of peritonitis (13.4 months/patient/episode) compared with 88 (4.9 months/patient/episode) in CS (p less than 0.005). By 6 months, 32% of OS patients had had at least one episode of peritonitis, compared with 62% of CS patients; at 12 months, these figures rose to 48% for OS and 91% for CS (p less than 0.01) patients (Life Table Analysis). The median survival time to first peritonitis episode was 5.1 months in CS and 9.7 months in OS (p less than 0.01). Exit-site infections occurred in 14/30 (46%) of patients on OS and in 13/30 (43%) of CS patients. We conclude that the OS was associated with a significant reduction in the incidence of peritonitis.     

Recurrent infection and catheter loss in patients on continuous ambulatory peritoneal dialysis.

OBJECTIVE: To elucidate the factors leading to catheter loss from recurrent infection in patients on continuous ambulatory peritoneal dialysis (CAPD). DESIGN: All catheters removed from patients were prospectively examined for infection. SETTING: CAPD unit in large tertiary-care general hospital. PATIENTS: Sixty-five consecutive patients undergoing catheter removal for whatever cause; 20 catheters rejected because of desiccation or contamination in transit. INTERVENTIONS: None. MAIN OUTCOME MEASURES: Micro-organisms linked to catheter removal; their locations on removed catheters. RESULTS: Of 45 catheters removed between January 1994 and August 1995, 26 were infected: 13/26 infections were caused by Staphylococcus aureus and 7/26 by Pseudomonas aeruginosa. In only one case was S. epidermidis associated with catheter removal. The most striking finding was that the inner cuff harbored large numbers of the infecting organisms, even when antibiotics had eradicated them from the peritoneal cavity and exit site, where present, and the catheter lumen. CONCLUSION: The importance of S. aureus and Ps. aeruginosa rather than S. epidermidis in catheter loss due to relapsing infection is confirmed. Persistence of the causative organisms in the inner cuff is a likely explanation for relapse after treatment, and might be due to the predominantly intraperitoneal administration of antibiotics. A clinical trial of the effect on catheter retention of empirical use of systemic or oral agents that give high tissue levels and are active against intracellular micro-organisms, along with recommended intraperitoneal regimens, is indicated.     

65例持续性非卧床腹膜透析腹膜炎相关因素分析

目的探讨单中心持续性非卧床腹膜透析(CAPD)患者发生腹膜炎的相关因素。方法回顾性分析该院腹膜透析中心2010年1月至2014年12月随访的181例CAPD患者中65例腹膜炎患者的相关因素。结果65例腹膜炎患者共发生腹膜炎98例次,腹膜炎平均发生率为0.24次/年。引起腹膜炎的相关因素有操作不规范、低蛋白血症及低钾血症。结论腹膜炎的发生与操作不规范、营养不良、电解质紊乱等密切关系。加强CAPD患者的培训及科学的膳食营养,具有重要的临床意义。     

Lymphoma-mimicking peritonitis in a patient on continuous ambulatory peritoneal dialysis (CAPD)

Cloudy dialysate in a patient on continuous ambulatory peritoneal dialysis (CAPD) most commonly reflects an increased number of leukocytes secondary to bacterial peritonitis. In the absence of infection, increased quantities of eosinophils, red blood cells, fibrin, or chyle may produce cloudy dialysate in these patients. We report the case of a CAPD patient presenting with cloudy dialysate and symptoms suggestive of bacterial peritonitis. Analysis of the dialysate revealed no microorganisms. The turbidity of the dialysate was related to an increased number of atypical lymphocytes consistent with a B cell lymphoma. Peritoneal dialysis continued uneventfully despite neoplastic disease within the peritoneum. It is recommended that malignant involvement of the peritoneum be added to the differential diagnosis of cloudy dialysate occurring in CAPD patients.     

Splenic abscess and peritonitis in a continuous ambulatory peritoneal dialysis (CAPD) patient

A 26-year-old female was on continuous ambulatory peritoneal dialysis (CAPD) because of diabetic end-stage renal failure. She developed an acute peritonitis that relapsed repeatedly despite appropriate antibiotic treatment. Investigations showed the presence of a splenic abscess, and splenectomy and peritoneal cannula removal were required. The patient died of myocardial infarction two weeks postoperatively. This is the first recorded case of peritonitis secondary to splenic abscess in a CAPD patient. Autopsy findings suggest that the abscess developed from infection of a splenic infarct.