Characteristics and sequelae of peritonitis in diabetics and nondiabetics receiving chronic intermittent peritoneal dialysis

Management of Refractory Peritonitis to Maintain the Peritoneum for Subsequent Dialysis

Peritonitis and its sequelae remain major clinical problems in treating peritoneal dialysis (PD) patients. One of these sequelae is the formation of intra-abdominal adhesions, preventing a patient from returning to peritoneal dialysis after a Tenckhoff catheter is removed for refractory peritonitis. We have recently applied a technique that appears to reduce the incidence of this severe complication. When it is determined that a catheter will be removed for refractory peritonitis, hourly peritoneal dialysis exchanges are performed for 12 hr prior to surgery. Postoperatively, the abdomen is rested for 48 hr, after which a temporary peritoneal dialysis catheter is placed at the bedside and hourly exchanges (with antibiotics) are performed for 2–3 days or until the dialysis fluid white blood cell count improves. Then the temporary catheter is removed and the abdomen is rested until the Tenckhoff catheter is replaced in 10–14 days. We treated 5 consecutive patients with refractory peritonitis (2 Pseudomonas, 1 Proteus, 1 Candida, 1 S. aureus) with this technique. All 5 patients were able to return successfully to peritoneal dialysis. At our institution over the past five years, 9 patients with refractory peritonitis due to the same organisms have had their catheters removed. Only 5 (56%) were able to return to PD. Although preliminary, our technique holds promise for those patients wishing to return to peritoneal dialysis after having a catheter removed for refractory peritonitis.

Hemoperitoneum: A Red Flag in CAPD

This paper describes two episodes of hemoperitoneum complicating continuous ambulatory peritoneal dialysis (CAPD). One patient developed bloody dialysate during an attack of acute cholecystitis, while a second developed this sign immediately after colonoscopy. We found no previous reports which have associated these conditions with bloody dialysate. This paper reviews other causes of spontaneous hemoperitoneum and discusses the significance of bloody dialysate during CAPD.

Clinical Characteristics, Patient and Technique Survival in Elderly Patients on Peritoneal Dialysis

The outcomes of the elderly population on peritoneal dialysis (PD) in developing countries are less known. In this study, we intended to study the clinical characteristics and patient and technique survival of elderly patients on PD. In this study, data of 148 elderly patients with end-stage renal disease who initiated PD between January 2001 and December 2015 were collected. Baseline clinical characteristics and events during the study period were recorded. Overall patient and technique survival rates of diabetic and non-diabetic elderly patients on PD were analyzed. Around 128 patients who were initiated PD during the study period were included for final analysis. The mean age of the study group was 70.3 ± 5.1 years, and 94 (80%) were males. Among these, 79 (65.8%) had diabetes. At the end of the study period, only 20 (16.6%) patients were remained on PD. Eighty-four (70%) patients died during PD and 15 (12.5%) patients were transferred to hemodialysis during the study period. The main reasons for death were cardiovascular (56.6%) and sepsis due to peritonitis (18.8%). The mean patient survival time was 38.2 ± 2.6 months. The patient survival rates were 91.2%, 45.3%, and 22.8% at 1, 3, and 5 years, respectively. Predictors of mortality were increased serum phosphorus, peritonitis episodes, urine output <400 mL, and ultrafiltration <1000 mL/day at beginning of PD. The mean technique survival time was 92.0 ± 5.1 months. Technique survival rates at 1, 3, and 5 years were 94.8%, 85.3%, and 71.7%, respectively. None of the factors was found to be predictive of technique survival. We found no significant difference between diabetic and non-diabetic patients in terms of technique and patient survival. Mortality was higher in elderly patients on PD. Factors affecting mortality in elderly patients on PD are low urine output, low ultrafiltration at beginning of PD, high serum phosphorus, and presence of peritonitis episodes. Patient and technique survival rates were comparable between diabetic and non-diabetic elderly patients on PD.

Rarity revisited: cryptococcal peritonitis

Cryptococcal peritonitis is a rare disease. Although the respiratory tract is considered to be the usual port of entry for the organism, the gastrointestinal tract can also serve as the potential site of entry. Here, we present a case of cryptococcal peritonitis that developed in an HIV-negative patient with underlying liver cirrhosis. We reviewed the literature and a total of 61 cases of cryptococcal peritonitis were identified. Liver cirrhosis, HIV/AIDS and end-stage renal disease on continuous ambulatory peritoneal dialysis were the major risk factors for developing crytococcal peritonitis.

Antibiotic selection for patients with septic shock

Early recognition of the sepsis syndrome, prompt administration of broad-spectrum antibiotics, surgical intervention when indicated, and aggressive supportive care in intensive care units remain the therapeutic strategies for patients with sepsis. Antibiotic selection is based on many factors including the most probable source of infection, the most likely pathogens, and knowledge of antibiotic susceptibility patterns for community- and hospital-acquired infections. Unfortunately, with this approach, mortality remains unacceptably high. Adjuvant therapies such as antiendotoxin antibodies, cytokine antagonists, and anti-inflammatory agents aimed at blunting the host immune response to bacterial infection have provided little clinical benefit to date. As our understanding of the pathophysiology of sepsis progresses, perhaps newer modalities will improve clinical outcome. At this time, preventive strategies, including optimal vaccine use, effective infection control practices, judicious use and care of intravascular lines and indwelling urinary catheters, and appropriate use of anti-infective agents to prevent microbial resistance should be used to decrease the incidence of infection and subsequent sepsis.

Update on clinical significance of coagulase-negative staphylococci

The clinical significance of coagulase-negative Staphylococcus species (CNS) continues to increase as strategies in medical practice lead to more invasive procedures. Hospitalized patients that are immunocompromised and/or suffering from chronic diseases are the most vulnerable to infection. Since CNS are widespread on the human body and are capable of producing very large populations, distinguishing the etiologic agent(s) from contaminating flora is a serious challenge. For this reason, culture identification should proceed to the species and strain levels. A much stronger case can be made for the identification of a CNS etiologic agent if the same strain is repeatedly isolated from a series of specimens as opposed to the isolation of different strains of one or more species. Strain identity initially can be based on colony morphology, and then one or more molecular approaches can be used to gain information on the genotype. Many of the CNS species are commonly resistant to antibiotics that are being indicated for staphylococcal infections, with the exception of vancomycin. The widespread use of antibiotics in hospitals has provided a reservoir of antibiotic-resistant genes. The main focus on mechanisms of pathogenesis has been with foreign body infections and the role of specific adhesins and slime produced by Staphylococcus epidermidis. Slime can reduce the immune response and opsonophagocytosis, thereby interfering with host defense mechanisms. As we become more aware of the various strategies used by CNS, we will be in a better position to compromise their defense mechanisms and improve treatment.

Paecilomyces variotii in peritoneal dialysate

Four cases of peritonitis caused by the filamentous fungus Paecilomyces variotii in patients on continuous ambulatory peritoneal dialysis are reported. Removal of the Tenckhoff catheter and antifungal chemotherapy led to resolution of symptoms in all cases. Possible contaminating events are discussed, and reported infections with P. variotii are reviewed.

Cryptococcal peritonitis in a CAPD patient

A 50-year-old diabetic woman with end-stage renal disease, who had been on continuous ambulatory peritoneal dialysis for 8 months, developed peritonitis caused by Cryptococcus neoformans var. neoformans. The patient was completely asymptomatic and infection was confirmed by detection of budding yeast cells in Gram-stained smears of turbid peritoneal fluid. The infection was cleared after intravenous fluconazole with delayed removal of the catheter. Fluconazole may be a suitable alternative drug in treating cryptococcal peritonitis.

Renal replacement treatment for diabetic patients in Newcastle upon Tyne and the Northern region, 1964-88

OBJECTIVES

To review the experience of renal replacement treatment in diabetic patients treated in Newcastle upon Tyne and the Northern region from 1964 to 1988, and to compare the morbidity and mortality of diabetic patients treated with dialysis or transplantation with those of matched controls of non-diabetic patients.

DESIGN

Retrospective study of clinical case notes.

SETTING

Renal units of the Northern region, particularly that in Newcastle upon Tyne.

PATIENTS

All 65 diabetic patients treated by renal replacement treatment in Newcastle upon Tyne from 1964 to 1987; 42 diabetic patients were matched with 42 non-diabetic patients according to age, sex, year of starting treatment, and type of treatment (dialysis or transplantation).

MAIN OUTCOME MEASURES

Sex, age, renal biopsy findings, blood pressure, history of diabetic treatment, and plasma creatinine concentration at the start of renal replacement treatment. History of renal replacement treatments, suitability for transplantation, history of transplantation, cumulative survival, and cause of death during follow up. Survival of technique, cumulative survival of the first peritoneal catheter and history of peritonitis in patients treated with continuous ambulatory peritoneal dialysis; source of graft, histocompatibility antigens, duration of associated stay in hospital, and graft survival in patients receiving renal or pancreatic transplant.

RESULTS

1259 Patients with chronic renal failure were accepted for renal replacement treatment in Newcastle upon Tyne, of whom 65 (5%) had diabetes. The first was accepted in 1974, and between 1974 and 1980 another 15 were treated (mean age 42 years; 4% of new patients). From 1981 to 1987, 49 diabetic patients (mean age 44; 9% of new patients) were treated. Fifty patients (77%) had insulin dependent diabetes and the remaining 15 (23%) non-insulin dependent diabetes. On average, the patients were aged 25 (range 5-57) when diabetes was first diagnosed and 44 (range 24-70) at the start of renal replacement treatment. The mean age at the start of treatment was 40 for patients with non-insulin dependent diabetes and 58 for patients with non-insulin dependent diabetes. Transplantation was performed in 33 of the diabetic patients, whose mean age was lower than that of those who did not receive a transplant (41 v 48 respectively, p less than 0.05). Comparison between the 42 diabetic patients and matched controls showed that the overall survival at five years was 46% and 77% respectively. The three year survival of the diabetic patients who did not receive a transplant was poor (41% v 79% respectively). Of patients transplanted, survival at five years was 73% in the diabetic patients and 90% in the controls. However, there was no significant difference in the five year graft survival (64% v 46% respectively).

CONCLUSIONS

Diabetes adversely affects morbidity and mortality in patients having renal replacement treatment, but renal transplantation seems to be the best option for treating diabetic patients with end stage renal failure.

The treatment of diabetic renal failure by continuous ambulatory peritoneal dialysis

During the 6-year period 1981-1987, 309 patients started chronic ambulatory peritoneal dialysis (CAPD), of whom 75 (24%) had diabetes. Despite severe peripheral vascular problems (20%), ischaemic heart disease (90%), and complete blindness (21%) the 1-year patient survival on CAPD was 88%. The actuarial patient survival for diabetic patients was similar to that of the non-diabetic cohort over the first 18 months but fell to 48% (compared to 70% in non-diabetic patients) at 3 years. Complications associated with CAPD, including the incidence of peritonitis, were no different between the diabetic and non-diabetic patient populations. Successful treatment for end-stage renal disease (ESRD) in diabetic patients can be achieved and justified in a liberal selection programme for the treatment of diabetic ESRD.

Staphylococcus epidermidis: a significant nosocomial pathogen

Staphylococcus epidermidis is an organism formerly believed to be nonpathogenic. It is now recognized as a pathogen, causing infections on implanted devices and among immunosuppressed patients. Further, it has been involved in the development of resistance to a number of antibiotics. The epidemiology of this organism, its pathogenesis, and its treatment are important to infection control practitioners.

Corynebacterium group JK peritonitis in patients on continuous ambulatory peritoneal dialysis

Corynebacterium group JK is described as the aetiologic agent of a second episode of peritonitis which occurred after a period of antibiotic treatment for likely endogenous peritonitis. Inclusion of vancomycin is suggested for treatment of continuous ambulatory peritoneal dialysis (CAPD) peritonitis in patients colonized by these multiresistant bacteria.