The Breakdown of Preformed Peritoneal Advanced Glycation End Products by Intraperitoneal Alagebrium

It has been demonstrated that inhibitors of advanced glycation end products (AGE), such as aminoguanidine, can suppress peritoneal AGE in rats on peritoneal dialysis (PD). However, it is unknown whether late administration of a putative crosslink breaker, alagebrium, could reverse peritoneal AGE. We therefore compared alagebrium with aminoguanidine in their ability to reverse peritoneal AGE in rats on PD. Male Sprague-Dawley rats were randomly divided into 3 groups: group I dialyzed with 4.25% glucose solution for all exchanges; group II dialyzed with 4.25% glucose solution containing aminoguanidine, and group III dialyzed with 4.25% glucose solution containing alagebrium for last 8 weeks of 12-week dialysis period. Dialysis exchanges were performed 2 times a day for 12 weeks. Immunohistochemistry was performed using a monoclonal anti-AGE antibody. One-hour PET was performed for comparison of transport characteristics. The immunolabelling of AGE in peritoneal membrane was markedly decreased in the alagebrium group. Consistent with this, the alagebrium group exhibited significantly higher D/Do glucose and lower D/P urea, suggesting low peritoneal membrane transport. But there were no significant differences between the control and the aminoguanidine group. These results suggest that the alagebrium may be the optimal therapeutic approach, compared with treatment with inhibitors of AGE formation, in rats on PD.

Relapsing Peritonitis Caused by Bordetella bronchiseptica in Continuous Ambulatory Peritoneal Dialysis Patient: A Case Report

Bordetella (B) bronchiseptica is a common veterinary pathogen, but has rarely been implicated in human infections. Most patients with B. bronchiseptica infections are compromised clinically such as in patients with a malignancy, AIDS, malnutrition, or chronic renal failure. We experienced a case of relapsing peritonitis caused by B. bronchiseptica associated with continuous ambulatory peritoneal dialysis (CAPD). A 56-yr-old male, treated with CAPD due to end stage renal disease (ESRD), was admitted with complaints of abdominal pain and a turbid peritoneal dialysate. The culture of peritoneal dialysate identified B. bronchiseptica. The patient was treated with a combination of intraperitoneal antibiotics. There were two further episodes of relapsing peritonitis, although the organism was sensitive to the used antibiotics. Finally, the indwelling CAPD catheter was removed and the patient was started on hemodialysis. This is the first report of a B. bronchiseptica human infection in the Korean literature.

Clinical characteristics of p-ANCA (anti-neutrophil cytoplasmic antibody)-related nephritis: a single center experience / 대한내과학회지

BACKGROUND/AIMS: We evaluated the clinical characteristics and prognostic value of the clinical, laboratory, pathologic features, at time of diagnosis, and the renal survival of patients with ANCA (anti-neutrophil cytoplasmic antibody)-related nephritis. METHOD: We retrospectively analyzed 17 patients who were diagnosed with ANCA-related nephritis at a single center. The risks of progression to ESRD or death according to the clinical parameters, the ANCA pattern and the renal pathologic findings were evaluated. RESULTS: The major symptoms were hematuria (100%), proteinuria (100%), uremic symptoms (41.2%), edema (35.5%), upper respiratory symptoms (29.4%) and oliguria (23.5%), which were not correlated with renal survival. All the patients showed a p-ANCA pattern. The BUN level (p=0.032) and GFR (p=0.023) at the time of diagnosis were different between the improved and the progressed patients in terms of renal function. The pathology indices were not predictive factors of both renal and patient survival. Eight patients (47.1%) were treated with steroid IV pulse, 4 (23.5%) with steroid IV pulse and cyclophosphamide IV pulse, 2 (11.8%) with steroid IV pulse, cyclophosphamide IV pulse and plasma exchange, and 2 (11.8%) with steroid IV pulse and plasma exchange. Fourteen patients (82.4%) needed hemodialysis. There were 3 (17.6%) disease-related deaths, 13 patients (76.5%) reached ESRD and 4 (23.5%) showed recovery of renal function. The mean percent of patients who survived was 80.2% and the mean percent of renal survival was 33.3% at the 1st and 3rd year, respectively. CONCLUSIONS: Poor renal function at presentation was associated with a high risk for disease progression, but age, gender, the clinical patterns of presentation and the pathologic findings were not associated with the prognosis. Early diagnosis and treatment seems to be essential to improve the renal outcomes.

The Preventive Effects of Practical Training on the Spot for Peritoneal Dialysis Related Peritonitis in Continuous Ambulatory Peritoneal Dialysis Patients / 대한신장학회지

PURPOSE: Peritoneal dialysis related peritonitis remains one of the most common causes of hospitalization and discontinuation of peritoneal dialysis. Patient education and the individual environment play a significant role in improving the clinical outcomes. Therefore, this study focused on the preventive effects of practical training on the spot for peritoneal dialysis related peritonitis in continous ambulatory peritoneal dialysis (CAPD) patients. METHODS: Fifty-eight patients who were started on CAPD were as the primary intended treatment modality. The patients were given to a questionnaire regarding their gender, age, place of residence, level of education, economic status, sterile technique, knowledge of personal hygiene, placing a correct region for exchanging a fluid bag, and their duration of CAPD. During a home visit, the patients were instructed in how to sterilize the region of dialysis and maintain sterility in dialysis. RESULTS: Seventy four cases of peritonitis from 35 patients were identified over the 2 year's period. In the rural residences where there is a lower socio-economic status, the rates of peritonitis decreased in those patients who had received training on the spot within 6 months from the start of peritoneal dialysis compared with the patients after the 6 month period. Lower rates of peritonitis were noted in the patients who received training earlier (r=0.19, p=0.03). CONCLUSION: Ongoing and repetitive individualized education is needed to prevent peritoneal dialysis related peritonitis. The incidence of peritoneal dialysis related peritonitis can be reduced by educating these patients individually.

Crystal-induced Acute Renal Failure due to Acyclovir in a Renal Transplant Patient / 대한이식학회지

Several medications are associated with the production of crystals that are insoluble in human urine. Intratubular precipitations of these crystals can lead to acute renal insufficiency. Many patients who require treatment with these medications have additional risk factors, such as volume depletion, underlying renal insufficiency and immunocompromised state that increase the risk of drug induced intrarenal crystal deposition. We experienced a case of crystal-induced acute renal failure due to acyclovir in a 44 year-old male renal allograft recipient. He was diagnosed as Varicella Zoster at 12 days after transplantation, and treated with intravenous (IV) acyclovir (IV infusion of acyclovir 250 mg mixed with normal saline 100 mL within several minutes three times a day, total seven times). Two days after initiation of IV acyclovir, serum BUN was increased up to 160 mg/dL, serum creatinine was increased up to 9.9 mg/dL and urine output was decreased to anuria. With discontinuation of acyclovir, hemodialysis was started as treatment of renal insufficiency. Renal function was restored after discontinuation of acyclovir.

Altered Expression of Peritoneal Aquaporin-in Response to Osmotic Stimuli and Glucocorticoid / 대한신장학회잡지

BACKGROUND: To examine the changes of peritoneal aquaporin-1 (AQP-1) expression and peritoneal transport in rats in response to continuous exposure of same osmotic stimuli which was induced by either mannitol or glucose in dialysis solution or glucocorticoids co-reatment. METHODS: Twenty-eight male Sprague-awley rats were divided into three groups:group I (n=10) rats were dialyzed with 5% mannitol solution (0.27 M); group II (n=9) rats were dialyzed with 5% glucose solution (0.28 M): and group III (n=9) rats were dialyzed with 5% glucose solution (0.28 M) accompanied by daily injection of dexamethasone (2 mg/kg, im) for the last 7 days of the 1 month dialysis period. Dialysis exchanges were performed 2 times a day for 1 month with 25 mL per exchange. Immunohistochemistry was performed using a polyclonal anti AQP-1 antibody. The peritoneal membrane (PM) function was assessed by one-hour PET for comparing transport characteristics. PM transport rates were assessed by D/P of urea nitrogen and D/Do of glucose. Water transport of peritoneal membrane was assessed by D/P of sodium at 1 month. RESULTS: The immunolabeling intensity of peritoneal AQP-1 was markedly increased and the most prominent in rats dialyzed with 5% glucose solution accompanied by injection of dexamethasone (group III). Consistent with this, D/P of sodium in rats of group III was significantly decreased (p<0.05), indicating an increased water permeability and ultrafiltration. In contrast, peritoneal AQP-1 labeling intensity was weaker in PD groups dialyzed with mannitol (group I) and glucose (group II) solution having an identical osmolality and was not different between the groups. Rats in group I exhibited significantly lower D/Do of glucose and increased D/P of urea nitrogen, suggesting high PM transport. CONCLUSION: These results indicate that the change of peritoneal AQP-1 expression is not specific to the glucose itself, but rather it could be altered in response to the changes of osmolality per se in PD solution. Moreover, corticosteroid up-egulates peritoneal AQP-expression, which is paralleled by an increased water permeability.

The Suppression of Peritoneal Advanced Glycosylation End Product Formation by Intraperitoneal Aminoguanidine / 대한신장학회잡지

BACKGOUND: The purpose of the study was to evaluate the effect of aminonguanidine on the inhibition of advanced glycosylation end product (AGE) formation and the expression of peritoneal vascular endothelial growth factor (VEGF). Then we analyzed the functional and morphological alterations of peritoneal membrane during long-term PD in rats. METHODS: Male Sprague-Dawley rats were randomly divided into 3 groups:group I (n=6), control rats with PD catheter but not dialyzed; group II (n=9), rats dialyzed with 4.25% glucose solution for all exchanges; group III (n=9), rats dialyzed with 4.25% glucose solution containing aminoguanidine (25 mg/kg) for all changes. Dialysis changes were performed 3 times a day with 25 mL/each exchange for 12 weeks. Immunostaining was performed using a monoclonal anti-AGE antibody and a polyclonal anti-VEGF antibody. One-hour peritoneal equilibration test were performed at every 4-week for the comparison of peritoneal transport characteristics. RESULTS: Expressions of peritoneal AGE and VEGF in dialyzed groups (group IIand III) were higher compared to control group. The level of AGE immunostaining in group III was significantly lower than in the group II. But peritoneal VEGF expression did not differ between the dialyzed groups. In dialyzed groups, D/DO glucose was significantly lower whereas D/P urea was significantly higher than in the control group. On linear regression analysis, peritoneal AGE and VEGF accumulation were directly correlated with D/DO glucose and D/P urea nitrogen. But there was no statistical significance in D/DO glucose and D/P urea nitrogen between the dialyzed groups. CONCLUSION: Peritoneal accumulation of AGE and VEGF increased with time on CAPD in dialyzed groups. Intraperitoneal aminoguanidine was greatly suppressed peritoneal AGE accumulation but no attenuated long-term dialysis related peritoneal hyperpermeability. The VEGF formation may be one of the several mediators resulting the functional deterioration of the peritoneal membrane in long-term peritoneal dialysis.

Altered Expression of Peritoneal Aquaporin-1 and Water Transport during Long-term Peritoneal Dialysis in Rats / 대한신장학회잡지

BACKGROUND: The present work was designed to examine the altered expression of peritoneal AQP-1 and water transport of peritoneal membrane during the long-term peritoneal dialysis with hypertonic glucose solution in rats. METHODS: Eighteen Sprague-Dawley male rats were randomly divided into 2 groups: control rats (n=6) with peritoneal catheter but not dialyzed; rats with peritoneal dialysis (PD) (n=12) were dialyzed with 4.25% glucose dialysate for all exchanges. Before completion of the study, 4 animals in PD group were euthanized owing to nonfunctional catheters or peritonitis, leaving 14 animals for the analysis. Dialysis exchanges were performed 3 times a day with 25 mL/each exchange for 12 weeks. Immunoperoxidase staining was performed using monoclonal anti-AGE antibody and polyclonal anti-AQP-1 antibody. The slides were read by 5 different examiners in a blind fashion. The staining intensity was graded semiquantitively from 0 to 3. The peritoneal membrane function was assessed by performing one-hour peritoneal equilibration tests every 6 week for comparing transport characteristics. Peritoneal membrane transport rate was assessed by D/P of urea nitrogen and D/Do of glucose. Water transport of peritoneal membrane was assessed by D/P of sodium at 12 week. RESULTS: The expression of peritoneal AQP-1 was increased in rats with PD, compared to control rats. Consistent with this, D/P of sodium in rats with PD was significantly decreased compared to control rats (0.58+/-0.04 vs 0.86+/-0.07, p<0.05), indicating high peritoneal water permeability in response to long-term peritoneal dialysis. Moreover, rats with PD were associated with significantly lower D/Do of glucose and higher D/P of urea nitrogen, suggesting high peritoneal membrane transport. CONCLUSION: High expression of peritoneal AQP-1 was associated with an increased peritoneal water permeability in response to long-term peritoneal dialysis with 4.25% glucose for 12 weeks. The underlying mechanisms for the increased AQP-1 expression need to be examined whether it is due to the continuous exposure to the dialysis solution containing high glucose concentration itself or compensatory effects of slowly developed concomitant ultrafiltration failure in chronic peritoneal dialysis.

The Effect of Combination Treatment with Angiotensin Converting Enzyme Inhibitor & Angiotensin II Receptor Blocker on the Apoptosis in the Kidney and on the MAP of Spontaneously Hypertensive Rats / 대한신장학회잡지

BACKGROUND: Either of the angiotensin converting enzyme inhibitor (ACEI) and angiotensin II receptor blocker (ARB) has been known to be effective on the inhibition of progressive renal disease. The ACEI can cause angiotensin-II to be decreased, but make an plasma activity of renin and kinin to be increased. The ARB increase both activities of renin and angiotensin-II, while it block the function of angiotensin-II on the AT-1 receptor. This kind of process might influence on the activation of AT-2 receptor and lead to the activated state of antiproliferative change. Therefore, if the ARB and ACEI are treated at same time, that is, on the condition that angiotensin-II is somewhat suppressed and AT-1 receptor is blocked, this is strongly assumed to make the more positive effect on the inhibition of renal progression and hypertension control. METHODS: Experimental animals were chosen as a Spontaneously Hypertensive Rat (SHR) and a Wistar Kyoto Rat (WKR). Used total number were 32, including 11 (SHR 5, WKR 6) as a control. The other 21 SHR were allocated to pharmacy treated 3 groups (7 in each group as an ACEI treat, ARB treat, ACEI and ARB combination treat). The study on these animals was built by an observation on the BP, histopathologic change, the apoptosis & PCNA, the expression of AT-1 and AT-2 receptor. RESULTS: The mean arterial blood pressure (MAP) of SHR of a 5-month age was 153.2+/-3.4 mmHg, which was significantly high as compared to the control, 121.1+/-18.0 mmHg (p<0.01). The average of MAP in treated groups, 125.1+/-24.6 mmHg, was significantly decreased, as compared to untreated animals, 167.3+/-14.1 mmHg (p<0.01). The MAP in combination treatment animals is significantly lower than either of treatment group (p<0.05). The apoptotic process at the proximal tubule was observed less in case of treated animals, but the difference among treated 3 groups was not confirmed. CONCLUSION: The MAP decreasing effect by the combination treatment with ACEI and ARB was significant, however, the additive effect by this treatment on the inhibition of renal damage progression was not observed.

Acute renal failure due to bilateral pyelonephritis / 대한내과학회지

Acute renal failure is a rare complication of acute pyelonephritis. Therefore, acute pyelonephritis is not usually considered in the differential diagnosis of acute renal failure. However, it is important to consider this entity because of potential for recovery of renal function if appropriate early antibiotics are instituted. We report a case of biopsy proven acute pyelonephritis which was manifested as acute renal failure. A 38 year old women was admitted to this hospital owing to abdominal distension and generalized edema. On admission she was started on hemodialysis because of severe hyperkalemia and marked uremic sypmtoms. She had pyuria and hematuria, but no organism was isolated at urine. We initially don't know the cause of renal failure. She was improved with antimicrobial therapy and hemodialysis. A kidney biopsy was performed on the 26th hospital day because of persistent proteinuria. Microscopic examination revealed focal tubular atrophy, necrosis or loss with heavy infilteration of leukocytes and histocytes in interstitium. Atrophic tubules contain pus casts. The patient was treated with ciprofloxacin for 4 weeks. At about 2 month follow up, proteinuria completely disappeared and serum creatinine level decreased to 1.0 mg/dL.

How is the Clinical Efficacy of Extracorporeal Extraction Treatment Especially, Focused on the Hemodiafiltration, for Removal of Paraquat? / 대한신장학회잡지

PURPOSE: We tried to estimate the clinical efficacy of hemodiafiltration in the paraquat poisoning, as compared with that of other various extracorporeal extraction treatment. METHODS: We prepared the fresh frozen plasma mixed with paraquat concentrated up to 30 mg/L. The experiment was designed to remove paraquat by use of various extracorporeal treatment, such as hemodialysis (HD), hemoperfusion (HP), hemofiltration (HF), hemodia-filtration (HDF), hemodiafiltration & hemoperfusion (HDFP), respectively. The efficacy was analyzed on the basis of counting extraction ratio, observing the decreasing concentration of paraquat with the lapse of time. Four pigs (Yorkshire) were prepared and poisoned by paraquat (40 mg/kg) intramuscularly. Two poisoned animals were assigned for hemoperfusion and hemodiafiltration respectively and other two were assigned for the control. We observed extraction ratio, decreasing concentration of paraquat in blood, remained amount of paraquat in major organs, in addition to pathologic change of major organs after sacrifying the animals. RESULTS: The mean of extraction ratio is 0.84+/-0.27 in case of HP, 0.81+/-0.21 in HD, 0.74+/-0.40 in HDFP, 0.53+/-0.24 in HDF, 0.5+/-0.14 in HF. The extraction ratio of HP & HD & HDFP was significantly higher than that of HDF & HF (p<0.01). The extraction ratio was counted as the difference between the paraquat concentration of inlet and outlet was divided by the concentration of inlet. The slope of paraquat concentration undergoing extracorporeal treatment was the most acutely decreased in the case of HDFP, the less decreased in HP, and sequentially in HD, HDF and HF (the least) in the order of the decrease. The more decreased paraquat concentration in plasma was observed, the higher flow rate of dialysate of HDF was conducted. The mean of extraction ratio in animal study was 0.61 in HP and 0.36 in HDF. The blood concentration of paraquat was observed to be much lower in case of HP & HDF, as compared with the control animals. The remained concentration of paraquat in major organs, 7 hours later after being poisoned, was observed to be higher in the vascular structure like kidney and heart. However, it was observed to be lower in kidney, lung & muscle, when either of HDF and HP was conducted, than control. Especially, it was much lower in HP and much less pathologic change in HP. HDF is the less effective measure than HP, but is effective as a continuous treatment to make paraquat concentration to be lower as much as it possible. CONCLUSION: The HDF is the effective measure to keep the blood paraquat level low, even though it is behind the HP in effectiveness.

How is the Clinical Efficacy of Extracorporeal Extraction Treatment Especially, Focused on the Hemodiafiltration, for Removal of Paraquat? / 대한신장학회잡지

PURPOSE: We tried to estimate the clinical efficacy of hemodiafiltration in the paraquat poisoning, as compared with that of other various extracorporeal extraction treatment. METHODS: We prepared the fresh frozen plasma mixed with paraquat concentrated up to 30 mg/L. The experiment was designed to remove paraquat by use of various extracorporeal treatment, such as hemodialysis (HD), hemoperfusion (HP), hemofiltration (HF), hemodia-filtration (HDF), hemodiafiltration & hemoperfusion (HDFP), respectively. The efficacy was analyzed on the basis of counting extraction ratio, observing the decreasing concentration of paraquat with the lapse of time. Four pigs (Yorkshire) were prepared and poisoned by paraquat (40 mg/kg) intramuscularly. Two poisoned animals were assigned for hemoperfusion and hemodiafiltration respectively and other two were assigned for the control. We observed extraction ratio, decreasing concentration of paraquat in blood, remained amount of paraquat in major organs, in addition to pathologic change of major organs after sacrifying the animals. RESULTS: The mean of extraction ratio is 0.84+/-0.27 in case of HP, 0.81+/-0.21 in HD, 0.74+/-0.40 in HDFP, 0.53+/-0.24 in HDF, 0.5+/-0.14 in HF. The extraction ratio of HP & HD & HDFP was significantly higher than that of HDF & HF (p<0.01). The extraction ratio was counted as the difference between the paraquat concentration of inlet and outlet was divided by the concentration of inlet. The slope of paraquat concentration undergoing extracorporeal treatment was the most acutely decreased in the case of HDFP, the less decreased in HP, and sequentially in HD, HDF and HF (the least) in the order of the decrease. The more decreased paraquat concentration in plasma was observed, the higher flow rate of dialysate of HDF was conducted. The mean of extraction ratio in animal study was 0.61 in HP and 0.36 in HDF. The blood concentration of paraquat was observed to be much lower in case of HP & HDF, as compared with the control animals. The remained concentration of paraquat in major organs, 7 hours later after being poisoned, was observed to be higher in the vascular structure like kidney and heart. However, it was observed to be lower in kidney, lung & muscle, when either of HDF and HP was conducted, than control. Especially, it was much lower in HP and much less pathologic change in HP. HDF is the less effective measure than HP, but is effective as a continuous treatment to make paraquat concentration to be lower as much as it possible. CONCLUSION: The HDF is the effective measure to keep the blood paraquat level low, even though it is behind the HP in effectiveness.

Clinical Significance of Blood Level of Zinc and Copper in Chronic Renal Failure Patients / 대한신장학회잡지

BACKGROUND: The cardiovascular complications are one of the main causes of deaths in chronic renal failure patients, and anemia is also the frequent complication. It has been reported that zinc and copper are participated in the process of the atherosclerosis and anemia directly or indirectly. The increased oxidative stress in the chronic renal failure which has the decreased anti-oxidative activity is correlated with the progression of the atherosclerosis and anemia. The decreased activity of anti-oxidative defense come from the decreased activity of the superoxide dismutase, which is considered to be followed by the decreased serum level of zinc and copper. METHODS: In this study, We designed to know how much significant correlation between the respective level of the copper & zinc and the clinical items of anemia & atherosclerosis, in addition to that, we observed the blood level of copper and zinc in chronic renal failure, what kind of change will be shown according to dialysis duration, dialysis method, whether the dialysis is done or not. Only zinc, not copper was positively related to the hemoglobin level(p<0.05). RESULTS: Only copper, not zinc was negatively related to the triglyceride level(p<0.05). The blood level of copper was generally increased in chronic renal failure, but was insignificant. The blood level of zinc was generally decreased in chronic renal failure, especially significantly decreased in pre-dialysis chronic renal failure patients. No significant correlation was found between the blood level of copper & zinc and the dialysis duration & dialysis method. However, there was the increasing tendency of blood level of zinc, following to the time passage of duration of dialysis. In the survey about the correlation with the growing age, this was related to the copper in the positive pattern, and the zinc in the negative pattern. CONCLUSION: Taken together, We observed the indirect clinical evidence the blood level of copper is correlated with the lipid level, as well as the blood level of zinc is correlated with the anemia. The blood level of copper and zinc in chronic renal failure patients was expected increased, but two weren't increased, and weren't affected by dialysis method,duration of dialysis. But some correlation was observed with the growing age.

Two cases of subcapsular renal hematoma as a complication of acute pyelonephritis / 대한내과학회지

Subcapsular renal hematoma without a history of trauma is uncommon, which has been reported with the association of underlying renal tumor, vascular or inflammatory disease. Recently, subcapsular renal hematoma has been reported to be a rare complication of acute pyelonephritis. If abdominal pain is acutely aggravated or hematocrit is rapidly decreased in the patient of acute pyelonephritis, subcapsular renal hematoma as a complication of acute pyelonephritis should be considered and confirmed by subsequent imaging studies. We report two cases of subcapsular renal hematoma as a complication of acute pyelonephritis.

A Case of Complete Agenesis of Dorsal Pancreas / 대한소화기내시경학회지

Agenesis of dorsal pancreas is a rare congenital anomaly that arises from the failure of the dorsal pancreatic bud of endodermal cells to form the body and tail of the pancreas. It may be associated with diabetes mellitus, pancreatic exocrine dysfunction, or abdominal pain. Complete or partial agenesis of dorsal pancreas has been reported in a small number of pediatric and adult patients. A case is herein described involving a complete agenesis of dorsal pancreas and diabetes mellitus. A 38-year-old man with a 7-months history of non-insulin dependent diabetes mellitus was admitted due to weight loss and abdominal pain. Abdominal ultrasonography and computed tomography showed a normal biliary tree and enlarged head of the pancreas without visualization of the pancreatic body and tail. Endoscopic retrograde cholangiopancreatography (ERCP) revealved the short duct of Wirsung in the uncinate process and a head without opacification of any ducts in the pancreatic body or tail. The patient underwent explo-laparotomy for evaluation of the suspected pancreatic cancer. The patient was diagnosed as having complete agenesis of the dorsal pancreas by ERCP, CT, and surgery.

A case of sclerosing encapsulating peritonitis presenting a huge pseudocyst formation in end stage renal failure on the maintenance hemodialysis / 대한내과학회지

Sclerosing encapsulating peritonitis(SEP) is now a well-recognised, but uncommon complication of chronic ambulatory peritoneal dialysis(CAPD). The etiology is unclear, but SEP is believed to be multifactorial. The most important factors seem to be the length of time on peritoneal dialysis and previous episodes of peritonitis. Anorexia, nausea, vomiting, weight loss, abdominal pain, and a reduction of the ability of the peritoneum to act as a dialyzing membrane are the usual presenting problems. We experienced one case of SEP presenting a huge pseudocyst in the patient of end stage renal failure on the maintenance hemodialysis for 5 years, even though he had a history of CAPD for 5 years. So we report this case with review of the literature.