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Allen JR, Troidle LK, Juergensen PH, Kliger AS, Finkelstein FO. Incidence of peritonitis in chronic peritoneal dialysis patients infused with intravenous iron dextran. Perit Dial Int 2000; 20:674-8. [PMID: 11216558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
BACKGROUND The Dialysis Outcomes Quality Initiative (DOQI) guidelines, published in 1997, emphasize the need for careful monitoring of iron stores and for provision of adequate iron replacement therapy to achieve target goals of hemoglobin concentration in end-stage renal disease (ESRD) patients, especially those treated with recombinant erythropoietin (rHuEPO). Intravenous iron dextran (IVID) therapy, which has long been used in hemodialysis patients, is increasingly being used in chronic peritoneal dialysis (CPD) patients. In 1997, we began using this form of iron therapy for our CPD patients. However, because considerable data exists to show a relationship between iron metabolism and acute infections, we questioned whether IVID infusion placed our patients at greater risk for peritonitis, the leading cause of death and patient drop-out from CPD therapy. OBJECTIVE To evaluate the relationship between iron and infection, we studied episodes of peritonitis in CPD patients who were infused with IVID. DESIGN In a retrospective study of adult CPD patients who received IVID during 1998, we investigated the occurrence of peritonitis episodes and the spectrum of causative organisms. Patients with a hemoglobin level of < 12.5 g/dL who also had a ferritin level < 100 ng/mL or a transferrin saturation level < 20% (or both) and who did not respond to oral iron therapy, were administered between 0.5 g and 1.0 g of IVID in an outpatient hospital setting. We calculated the expected and observed number of peritonitis episodes in these patients within 30, 60, and 90 days after infusion of IVID. RESULTS During the study period, 56 patients received 77 doses of IVID, with 14 patients requiring 2 or more infusions. Of the 77 doses, 71 were given as a 1-g bolus. The IVID was well tolerated by all patients. Within 90 days of IVID administration, 14 patients developed peritonitis: 6 episodes occurred within 30 days, 7 episodes occurred between 31 and 60 days, and 1 episode occurred between 61 and 90 days after the IVID dosing. The peritonitis rate for patients not receiving IVID was 1 episode per 13.7 patient-months. Taking this rate as the "expected" rate, the expected number of episodes of peritonitis for the study population was 5.6 episodes within 30 days, 11.2 episodes within 60 days, and 16.8 episodes within 90 days following IVID administration. The difference between the expected and observed rates of peritonitis in patients who were dosed with IVID was not statistically different. The spectrum of organisms seen in the peritonitis episodes in the study population was not significantly different from that seen in the peritonitis episodes in our CPD unit population. CONCLUSIONS There is evidence that IVID infusion therapy can improve anemia and reduce rHuEPO requirements in CPD patients, usually without adverse reaction and without exposing patients to an increased risk of peritonitis. More research is needed in the area of potential increased risk of infection in ESRD patients who are (1) infused with large doses of IVID, and (2) iron-overloaded.
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Dejani H, Eisen TD, Finkelstein FO. Revascularization of renal artery stenosis in patients with renal insufficiency. Am J Kidney Dis 2000; 36:752-8. [PMID: 11007677 DOI: 10.1053/ajkd.2000.17654] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The incidence and prevalence of end-stage renal disease (ESRD), particularly in the elderly population, have continued to increase in the United States. It is estimated that 10% to 20% of the elderly patients with ESRD have potentially remediable renal vascular disease. The purpose of the present study is to examine the results of renal artery revascularization in 20 patients aged older than 55 years with chronic renal failure (serum creatinine level >2 mg/dL) with proximal renal artery stenosis (RAS) diagnosed by magnetic resonance angiography (MRA) who underwent surgical or percutaneous revascularization. Patients were followed up closely in the postrevascularization period; renal function was monitored and potential complications of the procedure were carefully noted. Four of the 20 patients developed serious complications, including 3 patients with clinically significant atheroembolic disease and 1 patient with renal artery dissection. Seven patients developed greater than 5% eosinophilia. Five of the 20 patients had a deterioration in renal function 3 to 6 months after the procedure, and only 5 patients had a reduction in serum creatinine concentration 3 to 6 months after the procedure. The present study suggests that in elderly patients with chronic renal failure and proximal RAS, revascularization of renal vessels is associated with a high complication rate, and improvement in renal function occurs in only 25% of the patients. Whether revascularization can slow the rate of progression of renal failure remains uncertain and can only be answered by a large prospective trial.
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Juergensen PH, Murphy AL, Pherson KA, Kliger AS, Finkelstein FO. Tidal peritoneal dialysis: comparison of different tidal regimens and automated peritoneal dialysis. Kidney Int 2000; 57:2603-7. [PMID: 10844630 DOI: 10.1046/j.1523-1755.2000.00120.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND The National Kidney Foundation Dialysis Outcomes Quality Initiative (DOQI) clinical practice guidelines have suggested minimal weekly Kt/V urea and creatinine clearance goals for peritoneal dialysis patients maintained on continuous ambulatory peritoneal dialysis (CAPD) and automated peritoneal dialysis (APD). Achieving these goals may present problems, particularly in larger patients whose residual renal function declines. Thus, modifications of the dialysis regimen, such as tidal peritoneal dialysis (TPD), have been developed. However, the ability of TPD to improve the efficiency of the dialysis procedure remains uncertain. METHODS Stable, cycling peritoneal dialysis patients were placed into two groups to study the effectiveness of different TPD prescriptions on peritoneal clearances of urea and creatinine. The volume of dialysis solution used and the duration of therapy were fixed in the two groups. Comparisons were made to conventional APD using multiple hourly cycles in which spent dialysis solution was completely drained with each cycle. Group I patients received a total of 15 L of PD solution over 9.5 hours in the dialysis unit. These patients received 10, 25, and 50% TPD and APD on four separate days. Group II patients received 24 L of PD solution over 9.5 hours. These patients received 25 and 50% APD on separate days in the dialysis unit. Peritoneal dialysis clearances for urea (pKt/V) and creatinine (pCCr) levels were calculated for both groups. The results were then analyzed to determine whether there was any significant difference among the various prescriptions. RESULTS The data in the group I patients indicated a mean daily pKt/V of 0.22 +/- 0.03 with 10% TPD, 0.23 +/- 0.02 with 25% TPD, 0.25 +/- 0.02 with 50% TPD, and 0.26 +/- 0.02 with APD. Paired t-test analysis for pKt/V demonstrated that 10 and 25% TPD resulted in significantly lower values than 50% TPD and APD (P < 0.05). Mean daily pCCr L/24 h/1.73 m2 was 6.03 +/- 0.72 for 10% TPD, 6.34 +/- 0.83 for 25% TPD, 6.65 +/- 0.51 for 50% TPD, and 7.01 +/- 0.96 for APD; these differences were not significantly different. The data in the group II patients demonstrated a mean daily pKt/V of 0.28 +/- 0.03 with 25% TPD, 0.29 +/- 0.05 with 50% TPD, and 0.30 +/- 0.05 for APD. The mean daily pCCr was 6.69 +/- 0.47 for 25% TPD, 8.09 +/- 1.30 for 50% TPD, and 7.63 +/- 1.13 for APD. There were no statistical differences for pKt/V and pCCr within the 24 L group. CONCLUSION When the duration of therapy and volume of dialysate volume are kept constant, TPD does not result in an improvement in clearances compared with conventional APD, at least with dialysate volumes up to 24 L.
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Juergensen PH, Murphy AL, Pherson KA, Chorney WS, Kliger AS, Finkelstein FO. Tidal peritoneal dialysis to achieve comfort in chronic peritoneal dialysis patients. ADVANCES IN PERITONEAL DIALYSIS. CONFERENCE ON PERITONEAL DIALYSIS 2000; 15:125-6. [PMID: 10682086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Patients with end-stage renal disease on chronic peritoneal dialysis (CPD) can usually tolerate continuous ambulatory peritoneal dialysis (CAPD) or continuous cycling peritoneal dialysis (CCPD) without abdominal discomfort or pain. In some patients, pain or discomfort occurs with complete drain of the peritoneal dialysis solution or upon initiation of dialysis filling when the peritoneal cavity is empty. We report on the use of tidal peritoneal dialysis (TPD) as a modality to alleviate this pain. Of 136 patients in our CPD unit, 18 (13%) were complaining of pain with complete drain or upon instillation of PD fluid. All were placed on TPD after other causes for abdominal pain were excluded. Six patients were placed on 25% TPD, and 12 patients on 50% TPD. The mean Kt/V of the patients on TPD was 2.46 +/- 0.68. With TPD, all patients had complete relief of abdominal discomfort. Patients who develop abdominal pain with complete drain or fill when the abdominal cavity is empty would benefit from TPD and be able to continue with CPD.
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Wuerth DB, Finkelstein SH, Kliger AS, Finkelstein FO. Patient assessment of quality of care in a chronic peritoneal dialysis facility. Am J Kidney Dis 2000; 35:638-43. [PMID: 10739784 DOI: 10.1016/s0272-6386(00)70010-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The percentage of patients with end-stage renal disease (ESRD) maintained on chronic peritoneal dialysis (CPD) in the United States remains well less than the percentage in several other countries. Furthermore, there has recently been a decline in the percentage of patients with ESRD in the United States undergoing CPD. The reasons for this decline are uncertain, and investigators have implicated problems with the kinetics of peritoneal dialysis, peritonitis and exit-site infections, and psychosocial stresses imposed by the therapy. Few studies, however, have considered the role of the dialysis facility itself and patient perceptions of the facility as contributing to problems with the long-term acceptance of CPD. This study is designed to examine patients' perceptions of the organization and structure of the peritoneal dialysis facility and their interactions with the facility, focusing attention on areas of patient satisfaction and dissatisfaction with the facility. The study was conducted in a large, freestanding peritoneal dialysis program in an urban area that currently treats 140 patients undergoing CPD. Thirty patients were randomly selected to participate in the present study. A structured interview that included open-ended questions was administered and tape-recorded by a trained interviewer not affiliated with the dialysis unit. Patient responses were then reviewed by two investigators, and a taxonomy of patient satisfaction and dissatisfaction was developed, using a modification of the classification proposed by Concato and Feinstein. Patient responses were then categorized according to the taxonomy. The most frequently cited areas of patient satisfaction included the amount of information and instruction provided by the staff (n = 30), personal atmosphere of the facility (n = 30), efficiency of delivery of the dialysis supplies (n = 23), and availability of the primary nurse (n = 18). The importance of the nurse-patient interaction was emphasized by all 30 patients, whereas the physician-patient interaction was cited by only 14 patients. The most frequently cited area of dissatisfaction noted by all 30 patients concerned the dialysis regimen itself. The present study focuses attention on patient perceptions of their CPD facility, identifying areas of satisfaction and dissatisfaction. The analysis is important not only in providing a framework for CPD facilities with which to review their own interactions with CPD patients, but also for identifying those areas that require attention to maintain the long-term viability of CPD therapy.
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Juergensen PH, Cooper K, Kliger AS, Finkelstein FO. Hyperparathyroidism: a seven-year follow-up. ADVANCES IN PERITONEAL DIALYSIS. CONFERENCE ON PERITONEAL DIALYSIS 2000; 14:188-90. [PMID: 10649721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Hyperparathyroidism (HPT) is a common finding in patients with end-stage renal disease (ESRD). Most chronic peritoneal dialysis (CPD) patients with HTP can be successfully managed with phosphate binders, calcium supplements, and calcitriol therapy. Noncompliance with diet, prescribed binder, or calcitriol therapy may also lead to HPT. We reviewed New Haven CAPD unit patients who failed medical therapy and required parathyroidectomy (PTX) for control of severe HPT [sustained immunoreactive parathyroid hormone (iPTH) level > 600 pg/mL]. From 1990 to 1997, 18 out of 620 patients (3.0%) required PTX. Time on dialysis prior to PTX was 44.8 +/- 17.5 (mean +/- SD) months with a range of 13 to 71 months. The mean age was 43.6 +/- 11.8 years with a range of 30 to 66 years. There were 10 females and 8 males. Of the 18 patients, 14 had total parathyroidectomy with arm implants, and 4 had subtotal PTX. Seven of 18 patients had iPTH levels of < 100 pg/mL at 1 year post-PTX (5 patients with arm implants, 2 with subtotal PTX). Three patients required partial arm implant PTX to correct recurrent HPT. Pulse oral calcitriol (POC) was prescribed in 10 patients post PTX to maintain iPTH at target levels. Parathyroidectomy was necessary to correct HPT in 18 of 620 CPD patients from 1990 to 1997. The majority of these patients had excellent results after their PTX. Intact PTH levels of < 100 pg/mL for 1 year or more were noted in 5 of 14 patients with arm implants, and 2 of 4 patients with subtotal PTX. The significance of a persistent iPTH of < 100 pg/mL has yet to be determined in CPD patients.
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Troidle LK, Gorban-Brennan N, Kliger AS, Finkelstein FO. Peritonitis in the extended-care facility. ADVANCES IN PERITONEAL DIALYSIS. CONFERENCE ON PERITONEAL DIALYSIS 2000; 14:127-30. [PMID: 10649709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Many patients with end-stage renal disease (ESRD) require admission to an extended-care facility (ECF). Few data are available concerning the development of peritonitis among continuous peritoneal dialysis (CPD) patients residing in an ECF. We retrospectively reviewed the charts of 77 CPD patients admitted to an ECF between November 1993 and 31 August 1997. A total of 25 episodes of peritonitis developed among CPD patients in the ECF during this period for an overall peritonitis rate of 1 episode in 19.8 patient-months. The CPD patients developing peritonitis in the ECF were similar in age and gender to the CPD patients residing in the ECF not developing peritonitis. There were more African-Americans among the group of CPD patients residing in the ECF who developed peritonitis than among the ECF residents who did not develop peritonitis (41% vs. 23%, respectively; P < 0.05). Patients developing peritonitis in the ECF resided in the ECF significantly longer than the remaining CPD patients not developing peritonitis in the ECF (106 vs. 77 days, respectively; P < 0.05). The overall rate of peritonitis in the ECF was lower than that seen in the community (1 episode in 19.8 patient-months vs. 1 episode in 10.0 patient-months, respectively). The rate of gram-positive peritonitis was lower than the rate of gram-positive peritonitis seen in the community setting (1 episode in 54.9 patient-months vs. 1 episode in 14.9 patient-months, respectively). The rate of culture-negative peritonitis was higher among the ECF patients than among patients developing community-acquired peritonitis (1 episode in 61.9 patient-months vs. 1 episode in 106.2 patient-months, respectively). The spectrum of organisms in the ECF was different than the spectrum noted among patients developing hospital-acquired peritonitis. Eleven of the 25 episodes of peritonitis were treated successfully at the ECF while the remaining 14 episodes of peritonitis were treated at an acute-care hospital. Continuous PD therapy was continued following 19 of the 25 episodes (76%), 1 patient transferred to hemodialysis, and 5 patients expired. We conclude that patients develop peritonitis in the ECF less frequently than in the community setting, with the spectrum of organisms different than the spectrum seen in the community and hospital settings. Seventy-six percent of the patients continue CPD therapy following an episode of peritonitis.
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Carey HB, Boltax R, Dickey KW, Finkelstein FO. Bilateral renal infarction secondary to paradoxical embolism. Am J Kidney Dis 1999; 34:752-5. [PMID: 10516359 DOI: 10.1016/s0272-6386(99)70403-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Paradoxical embolism is an uncommon but increasingly reported cause of arterial embolic events. Involvement of the kidney is rarely reported. Autopsy studies suggest, however, that embolic renal infarction is underdiagnosed antemortem. We report a case of bilateral, main renal artery occlusion and acute renal failure secondary to paradoxical embolism. Clinical and laboratory data at presentation were not suggestive of renal infarction. Support for the diagnosis of paradoxical embolism, which most commonly occurs across a patent foramen ovale, was made by contrast echocardiography, which provides a sensitive method for detecting right-to-left intracardiac shunts. The often subtle presentation of renal infarction suggests patients with peripheral or central arterial embolic events should be carefully observed for occult renal involvement. Contrast echocardiography should be performed when renal infarction occurs without a clear embolic source to evaluate for paradoxical embolism.
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Troidle LK, Kliger AS, Finkelstein FO. Challenges of managing chronic peritoneal dialysis-associated peritonitis. Perit Dial Int 1999; 19:315-8. [PMID: 10507811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
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Troidle L, Gorban-Brennan N, Kliger AS, Finkelstein FO. Effect of duration of chronic peritoneal dialysis therapy on the development of peritonitis. Perit Dial Int 1999; 19:376-9. [PMID: 10507821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
OBJECTIVE Long-term chronic peritoneal dialysis (CPD) therapy has been associated with alterations in peritoneal membrane structure and peritoneal macrophage function. We thus reviewed our experience with the development of peritonitis among patients maintained on CPD therapy for various time periods to determine if the spectrum of organisms, rates of peritonitis, and outcome changed with the duration of CPD therapy. SETTING AND PATIENTS Patients maintained on CPD therapy in our out-patient unit in New Haven, Connecticut. DESIGN Retrospective review of the charts of patients maintained on CPD therapy (HomeChoice Cycler or Ultrabag, Baxter, McGaw Park, IL, U.S.A.) between 1 January 1997 and 31 March 1998. These patients were divided into three groups: group 1, patients maintained on CPD therapy < or = 12 months; group 2, patients maintained on CPD therapy for 13-36 months; and group 3, patients maintained on CPD therapy for > or = 37 months. RESULTS The study included 256 patients: 101 patients in group 1, 110 patients in group 2, and 45 patients in group 3. All groups of patients were similar in age. There were significantly fewer Caucasians and fewer males in group 3 in comparison to groups 1 and 2. The incidence of diabetes mellitus, coronary artery disease, and peripheral vascular disease was significantly lower among patients in group 3 in comparison to groups 1 and 2. There were 155 episodes of peritonitis during the study period for an overall rate of 1 episode in 18.7 patient-months. The overall, gram-positive, and gram-negative rates of peritonitis were not significantly different among the patients in groups 1, 2, and 3. There were more episodes of Staphylococcus aureus peritonitis among patients in group 3 in comparison to group 2 (1 episode in 59.6 vs 1 episode in 280.2 patient-months, respectively). Two weeks after the development of peritonitis, 94.6% of the patients in group 3 continued CPD therapy, while 79.4% of the patients in group 1 continued CPD therapy (p < 0.05). No patient in group 3 transferred to hemodialysis, while 10.3% and 8.2% of the patients in groups 1 and 2 transferred to hemodialysis (p < 0.05). The death rate 2 weeks after the onset of peritonitis was 10.3%, 9.8%, and 5.4% in groups 1, 2, and 3, respectively (p = NS). CONCLUSIONS Despite the immunological and morphological changes that occur in the peritoneal cavity with increased time on CPD therapy, there was no difference in the overall, gram-positive, or gram-negative rates of peritonitis for patients maintained on CPD therapy for various time periods. Patients in group 3 continued CPD therapy more often than did patients in group 1. Patients in group 3 transferred to hemodialysis less often than did the remaining patients in the study period. The incidence of death was not significantly different for the three groups of patients.
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Juergensen PH, Rizvi H, Caride VJ, Kliger AS, Finkelstein FO. Value of scintigraphy in chronic peritoneal dialysis patients. Kidney Int 1999; 55:1111-9. [PMID: 10027951 DOI: 10.1046/j.1523-1755.1999.0550031111.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND A variety of factors can adversely impact chronic peritoneal dialysis (CPD) as an effective renal replacement therapy for patients with end-stage renal disease. These factors include peritonitis, poor clearances, loss of ultrafiltration, and a variety of anatomic problems, such as hernias, peritoneal fluid leaks, loculations, and catheter-related problems caused by omental blockage. This study reviews our experience with peritoneal scintigraphy for the evaluation of some of these difficulties. METHODS From 1991 to 1996, 50 peritoneal scintigraphy scans were obtained in 48 CPD patients. Indications for scintigraphy were evaluated, and the patients were placed into four groups: group I, abdominal wall swelling; group II, inguinal or genital swelling; group III, pleural fluid; and group IV, poor drainage and/or poor ultrafiltration. A peritoneal scintigraphy protocol was established and the radiotracer isotope that was used was 2.0 mCi of 99mtechnetium sulfur colloid placed in two liters of 2.5% dextrose peritoneal dialysis solution. RESULTS Ten scans were obtained to study abdominal wall swelling, with seven scans demonstrating leaks; six of these episodes improved with low-volume exchanges. Twenty scans were obtained to evaluate inguinal or genital swelling, and 10 of these had scintigraphic evidence for an inguinal hernia leak (9 of these were surgically corrected). One of four scans obtained to evaluate a pleural fluid collection demonstrated a peritoneal-pleural leak that corrected with a temporary discontinuation of CPD. Sixteen scans were obtained to assess poor drainage and/or ultrafiltration. Five of these scans demonstrated peritoneal location, and all of these patients required transfer to hemodialysis. The other 11 scans were normal; four patients underwent omentectomies, allowing three patients to continue with CPD. CONCLUSION Peritoneal scintigraphy is useful in the evaluation and assessment of CPD patients who develop anatomical problems (such as anterior abdominal, pleural-peritoneal, inguinal, and genital leaks) and problems with ultrafiltration and/or drainage.
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Ghantous VE, Eisen TD, Sherman AH, Finkelstein FO. Evaluating patients with renal failure for renal artery stenosis with gadolinium-enhanced magnetic resonance angiography. Am J Kidney Dis 1999; 33:36-42. [PMID: 9915265 DOI: 10.1016/s0272-6386(99)70255-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The incidence and prevalence of end-stage renal disease (ESRD) continues to increase, especially in the elderly population. The role of renovascular disease in contributing to ESRD is still not well defined. The objective of this study was to determine the utility of gadolinium (Gd)-enhanced magnetic resonance angiography (MRA) in evaluating elderly patients with renal insufficiency for renal artery stenosis (RAS). A 7-month prospective study conducted in a tertiary referral center evaluated 40 consecutive patients with progressive renal insufficiency (18 men and 22 women; mean age, 70 +/- 5.6 [standard deviation] years) and high clinical suspicion for renovascular disease with Gd-enhanced MRA. Digital subtraction angiography (DSA) was obtained in only those patients with significant RAS detected by MRA. Twelve patients had significant RAS. Six of these patients had percutaneous transluminal renal angioplasty (PTRA), five patients had renal artery bypass surgery, and one patient had a stent placed after PTRA. Seventy-eight renal arteries were satisfactorily evaluated by MRA. Twenty-two renal arteries were evaluated by both MRA and DSA. Of the 12 significant stenoses detected by the MRA, 11 were confirmed by DSA and 1 was confirmed at the time of surgical revascularization. It is concluded that Gd-enhanced MRA is a useful test for the evaluation of RAS in patients with compromised renal function.
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Troidle LK, Gorban-Brennan N, Kliger AS, Finkelstein FO. Continuous cycler therapy, manual peritoneal dialysis therapy, and peritonitis. ADVANCES IN PERITONEAL DIALYSIS. CONFERENCE ON PERITONEAL DIALYSIS 1998; 14:137-41. [PMID: 10649711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
An increasing number of patients are prescribed a continuous-cycling regimen because standard manual peritoneal-dialysis exchanges alone are not sufficient in achieving adequate dialysis as defined by the Dialysis Outcome Quality Initiative. Consequently, the number of patients on continuous-cycler therapy is increasing. There is controversy as to whether there are differences in the development of peritonitis between patients maintained on manual therapy and those on continuous cycling therapy. As a result, we retrospectively reviewed the charts of all cycler peritoneal dialysis (CPD) patients maintained on either manual peritoneal dialysis (Baxter UltraBag; Group I) or continuous cycler peritoneal dialysis (Baxter HomeChoice Cycler; Group II) between 1 June 1994 and 31 December 1996. A total of 239 patients were in Group I and 106 in Group II. Both groups were similar in age, race, gender, and presence of diabetes mellitus, coronary artery disease, peripheral vascular disease, and gastrointestinal disease. There was no difference in the overall rate of peritonitis between the two groups of patients [1 episode in 10.4 patient-months (Group I) vs. 1 in 10.0 patient-months (Group II); -0.01843 to 0.02619]. The rates of Staphylococcus aureus peritonitis [1 episode in 48.5 patient-months (Group I) vs. 1 in 141.8 patient months (Group II); -0.06152 to -1.1689]; polymicrobial peritonitis [1 episode in 278.8 patient-months (Group I) vs. 1 in 1134 patient months (Group II): -0.0079 to -0.0478], and fungal peritonitis (1 episode in 202.7 patient-months (Group I) vs. no episodes (Group II); 0.00202 to 0.00785] were significantly lower among patients maintained on the Baxter HomeChoice Cycler. The rate of gram-negative peritonitis was higher among patients maintained on the Baxter HomeChoice Cycler, but this difference was not statistically significant [1 episode in 82.6 patient-months (Group I) vs. 1 episode in 45.4 patient months (Group II); 0.4723 to -0.0248]. We conclude that individual rates of peritonitis were different for patients maintained on either manual or continuous CPD therapy, while the overall rate of peritonitis was found to be similar for both groups of patients. The finding that there may be a difference with the gram-negative peritonitis rate is important since gram-negative peritonitis has been shown to have a more severe outcome in terms of morbidity, mortality, and patient dropout from CPD therapy. A larger, randomized, multicenter study comparing the rates of gram-positive, gram-negative, fungal, and polymicrobial peritonitis is warranted.
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Juergensen PH, Allen JR, Kliger AS, Finkelstein FO. Adequacy of CPD: comparing Kt/V and creatinine clearance. ADVANCES IN PERITONEAL DIALYSIS. CONFERENCE ON PERITONEAL DIALYSIS 1998; 14:72-4. [PMID: 10649695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Presently, adequate dialysis in continuous peritoneal dialysis (CPD) patients is assessed by monitoring urea kinetics (Kt/V) or by measuring the total creatinine clearance (CC). Target Dialysis Outcome Quality Initiative (DOQI) goals are a weekly Kt/V of at least 2.0, and a CC of at least 60 L/wk per 1.73 m2. One hundred and four CPD patients in the New Haven continuous ambulatory peritoneal dialysis (CAPD) unit had their most recent Kt/V and CC reviewed. Of these patients, 58.7% attained the DOQI goals for Kt/V and CC, 14.4% had an acceptable Kt/V but low CC, 11.5% had an acceptable CC but low Kt/V, and 15.4% had both low Kt/V and low CC. A CC > 60 L/week per 1.73 m2 was associated with a residual renal function of > 25 L/wk per 1.73 m2. For a Kt/V of > 2.0, good residual renal function was helpful but not essential. A question left unanswered is whether patients with a low Kt/V and an adequate CC or low CC and acceptable Kt/V need more dialysis.
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Juergensen PH, Wuerth DB, Juergensen DM, Finkelstein SH, Steele TE, Kliger AS, Finkelstein FO. Psychosocial factors and clinical outcome on CAPD. ADVANCES IN PERITONEAL DIALYSIS. CONFERENCE ON PERITONEAL DIALYSIS 1997; 13:121-4. [PMID: 9360664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Patient dropout from chronic peritoneal dialysis (CPD) and transfer to hemodialysis remains a major problem with patients on CPD. Peritonitis, exit-site infections, and medical complications requiring hospitalization often adversely affect the outcome of CPD. The role of psychosocial factors in determining patient outcome and influencing the rates of these complications is not clear. Our group has employed a variety of instruments, including the Patient Related Anxiety Scale (PRAS), Beck's Depression Inventory (BDI), Kupfer-Detre System II somatic symptom scale (KDS-II), and a patient self-assessed quality of life (PAQOL) questionnaire to assess quality of life and to objectively evaluate the psychosocial status of the patient treated with CPD. The present study extends previous observations by relating the results of these psychosocial instruments to the incidence of various complications in 103 patients maintained on CPD. Patients were divided into low-scoring (lowest symptoms of depression, anxiety, somatic symptoms, and best quality of life evaluation), intermediate, and high-scoring (highest symptoms of depression, anxiety, somatic symptoms, and worst quality of life) categories. The peritonitis rates, exit-site infection rates, and days of hospitalization of the three categories were then compared. The results demonstrate significantly higher complication rates in the high-scoring when compared to the low-scoring patients. Thus screening patients maintained on CPD with objective measures of psychosocial functioning may enable caregivers to more accurately predict which patients are at greater risk for developing medical complications.
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Wuerth DB, Finkelstein SH, Juergensen DM, Juergensen PH, Steele TE, Kliger AS, Finkelstein FO. Quality of life assessment in chronic peritoneal dialysis patients. ADVANCES IN PERITONEAL DIALYSIS. CONFERENCE ON PERITONEAL DIALYSIS 1997; 13:125-7. [PMID: 9360665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Previous studies by our group have attempted to examine quality of life (QoL) issues in a cohort of end-stage renal disease (ESRD) patients maintained on chronic peritoneal dialysis (CPD) by assessing a variety of psychological tests and by asking patients to rate their own QoL. The present study was undertaken to extend previous observations by asking patients to spontaneously select those domains of life experience that they think are most important in determining their quality of life. Sixty-eight medically stable CPD patients were asked to spontaneously select those three to five domains felt to be most important to them in defining their QoL. The 307 responses were then grouped into 22 broad categories by three investigators. The most frequently selected domains focused on interpersonal relationships. Domains that enhance the quality of one's day and add meaning to one's life were selected with a midrange frequency. Some domains that might intuitively seem to be important for a patient's QoL were selected with a surprisingly low frequency. These findings suggest that to understand what CPD patients value in assessing their QoL can best be determined by asking them directly and not by using predetermined variables.
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Troidle L, Kliger AS, Gorban-Brennan N, Fikrig M, Golden M, Finkelstein FO. Nine episodes of CPD-associated peritonitis with vancomycin resistant enterococci. Kidney Int 1996; 50:1368-72. [PMID: 8887301 DOI: 10.1038/ki.1996.451] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Nine episodes of chronic peritoneal dialysis (CPD)-associated peritonitis with vancomycin resistant enterococci (VRE) were described between November 1993 and February 1996 in our dialysis unit. During the time period, 216 patients were treated for 227 episodes of peritonitis. Of the patients developing peritonitis with VRE the mean age +/- SD was 56.3 +/- 9.7 years. There were 5 females, 4 males, 5 Caucasians and 4 African-Americans. Diabetes mellitus, cardiovascular disease and gastrointestinal disease were present in 7, 8 and 7 of the 9 patients with VRE peritonitis, respectively. Patients were maintained on CPD therapy for an average of 29.9 +/- 19.2 patient months before developing VRE peritonitis. The prior rate of CPD associated peritonitis in the patients developing VRE peritonitis was significantly higher than the rate noted in the CPD patients not developing peritonitis with VRE (1 episode in 6.3 patient months vs. 1 episode in 12.5 patient months, P < 0.05). All 9 patients had used vancomycin in the six months prior to the development of VRE peritonitis and 78% had used a cephalosporin. The antimicrobial therapy used to eradicate peritonitis with VRE varied among the 9 patients with chloramphenicol used in 4 patients. The Tenckhoff catheter was removed in 6 of the 9 patients and was successfully reinserted in one patient. The catheter was not removed in 3 patients and 2 of these patients expired. Five of the 9 patients expired while being treated for VRE, 2 transferred to hemodialysis and 2 continued CPD therapy. VRE peritonitis is a major concern for patients maintained on CPD therapy. Future studies are needed with case controls to determine the significance of prior vancomycin and cephalosporin therapy, fecal VRE carriage and certain demographic data on the acquisition of VRE peritonitis. Furthermore, the optimal therapy and outcome may be better clarified through such a review.
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Troidle L, Kliger AS, Goldie SJ, Gorban-Brennan N, Brown E, Fikrig M, Finkelstein FO. Continuous peritoneal dialysis-associated peritonitis of nosocomial origin. ARCH ESP UROL 1996; 16:505-10. [PMID: 8914180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To describe our experience with nosocomial continuous peritoneal dialysis (CPD)-associated peritonitis focusing on the incidence, possible risk factors, spectrum of organisms, and outcome. DESIGN Retrospective review of the medical records of our CPD patients admitted to an acute-care hospital between November, 1993 and December, 1994. SETTING University-associated acute-care hospitals in New Haven, Connecticut. PATIENTS One hundred and eighty-eight patients maintained on CPD therapy and admitted to an acute-care hospital. RESULTS Nineteen patients (5%) developing nosocomial peritonitis (NP) were identified from the 408 admissions occurring during the study period. Patients developing NP were older than the hospitalized CPD patients not developing NP (65.5 +/- 14.6 vs 58.4 +/- 14.7 years, p < 0.05). Comorbid diseases including diabetes, peripheral vascular disease, gastrointestinal disease, cardiovascular disease, and human immunodeficiency virus seropositivity were not more common in the patients developing NP. Patients developing NP were hospitalized significantly longer than the CPD patients not developing NP (39.5 +/- 46.5 days vs 12.7 +/- 12.4 days, p < 0.001). The mean serum albumin was lower in the NP patients than in the CPD patients not developing NP (2.35 +/- 0.52 g/dL vs 3.02 +/- 0.60 g/L, p < 0.001). Antecedent antibiotic use and performance of invasive procedures were noted in 89% and 68% of the patients developing NP, respectively. Staphylococcal species, enterococcal species, and gram-negative organisms accounted for 26%, 21%, and 53% of the episodes of NP, respectively. Furthermore, two strains of Enterococcus resistant to vancomycin were cultured. Eight patients developing NP expired, 8 patients continued CPD therapy, 2 patients transferred to hemodialysis, and one patient recovered renal function. CONCLUSION We conclude that NP is uncommon. Increased age, increased length of hospital stay, and hypoalbuminemia may predispose patients to the development of NP. Further studies with case controls should help to clarify whether antecedent antibiotics or prior performance of invasive procedures predispose patients to the development of nosocomial peritonitis. The spectrum of organisms accounting for NP is different than the spectrum of organisms causing community-acquired CPD-associated peritonitis. Some of these organisms may be resistant to standard antibiotic therapies. Patients developing NP do poorly, with 42% expiring while being treated for NP.
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Steele TE, Wuerth D, Finkelstein S, Juergensen D, Juergensen P, Kliger AS, Finkelstein FO. Sexual experience of the chronic peritoneal dialysis patient. J Am Soc Nephrol 1996; 7:1165-8. [PMID: 8866408 DOI: 10.1681/asn.v781165] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The actual and desired frequency of intercourse was studied in 68 randomly selected chronic peritoneal dialysis (CPD) patients. The results were correlated with standard measures of depression (Beck Depression inventory), anxiety (Patient Related Anxiety Scale), physical symptoms (Kupfer-Detre System 2), adequacy of dialysis (KT/Vurea) and nutrition (serum albumin level). In addition, patients assessed their quality of life (PAQOL) using an 1 to 10 analog scale. The mean +/- SD age of all patients studied was 54 +/- 11 yr, the mean dialysis duration was 24 +/- 24 months; 46% of the patients were female, and 34% were diabetic. Sixty-three percent of the patients reported never having intercourse (Group 1), 19% reported having intercourse < or = two times per month (Group II), and 18% reported having intercourse > two times per month (Group III). Dialysis duration, serum albumin level, KT/Vurea, and age were not significantly different among the three groups. Nearly 50% of patients in Group I desired to have intercourse, and 54% of the patients in Group II desired to have intercourse more frequently, Group I patients had significantly higher depression and anxiety scores, more physical symptoms, a poorer overall PAQOL, and less satisfaction with their sexual activity than Group III patients. These results suggest that there is a high prevalence of sexual difficulties in CPD patients. Patients not having intercourse have a poorer quality of life and higher degree of depression and anxiety than patients having intercourse more than two times per month.
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Goldie SJ, Kiernan-Tridle L, Torres C, Gorban-Brennan N, Dunne D, Kliger AS, Finkelstein FO. Fungal peritonitis in a large chronic peritoneal dialysis population: a report of 55 episodes. Am J Kidney Dis 1996; 28:86-91. [PMID: 8712227 DOI: 10.1016/s0272-6386(96)90135-3] [Citation(s) in RCA: 132] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Fungal peritonitis (FP) is a rare but serious complication of chronic peritoneal dialysis (CPD) therapy and is associated with high morbidity and CPD drop-out. Risk factors and management of FP remain controversial. We reviewed our experience with FP in an attempt to identify risk factors and to examine outcome in relation to treatment strategies. Between March 1984 and August 1994, 704 patients were maintained on CPD therapy in our unit. A total of 1,712 episodes of peritonitis were identified among these patients. Fungal peritonitis accounted for 55 (3.2%) of these episodes. The patients on CPD therapy who developed FP were similar to those who did not develop FP with regard to age, gender, underlying etiology for end-stage renal disease, and comorbid disease. Prior antibiotic use was noted in 87.3% of episodes of FP. The peritonitis rate in the patients who developed FP was one episode every 5.1 months compared with one episode every 9.9 patient-months in the CPD patients who did not develop this infection. Candida sp caused 74.5% of the episodes of FP. All patients were treated with antifungal drugs. In 85.5% of infections the Tenckhoff catheter was removed within 1 week of the diagnosis of FP; 31.9% of the patients who had the Tenckhoff catheter removed did not have the catheter replaced because of death or transfer to hemodialysis. In the patients who developed FP, 68.1% had the Tenckhoff catheter replaced; of these patients, 90.6% and 59.4% were on CPD therapy 1 and 6 months after catheter replacement, respectively. We conclude that risk factors identified in our population include peritonitis rate and prior antibiotic use. Fungal peritonitis is rare in our CPD population, and although it leads to significant CPD drop-out, it can be managed in many patients with antifungal therapy, early catheter removal, and temporary hemodialysis. Of the catheters replaced between 2 and 8 weeks after the diagnosis of FP, 91% functioned successfully, allowing continuation of CPD.
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Steele TE, Baltimore D, Finkelstein SH, Juergensen P, Kliger AS, Finkelstein FO. Quality of life in peritoneal dialysis patients. J Nerv Ment Dis 1996; 184:368-74. [PMID: 8642387 DOI: 10.1097/00005053-199606000-00007] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In 49 patients receiving continuous ambulatory peritoneal dialysis, we assessed the relative influences of adequacy of dialysis (assessed by kinetic transfer/volume urea) and psychological symptoms (depression and anxiety) upon the patients' evaluation of their overall quality of life (QoL). Subjects completed self-rating forms for anxiety, depressive, and somatic symptoms, for discrete areas relevant to QoL, and for overall QoL; clinicians also rated QoL. Depressive symptoms proved a much stronger correlate of overall QoL than did the biochemical measure of dialysis adequacy, and they remained influential even after adjustment for anxiety, kinetic transfer/volume, and somatic symptoms. In contrast, the effects of kinetic transfer/volume, anxiety symptoms, and somatic symptoms dropped sharply when adjusted for the other variables. Because psychological (especially depressive) symptoms may be stronger determinants of patients' overall QoL than is adequacy of dialysis, assessing QoL and psychological status should be part of the care of end-stage renal disease patients.
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Finkelstein FO, Smith JD. Peritoneal dialysis for patients with diabetes and end-stage renal disease: sorting out the biases? ASAIO J 1996; 42:1-3. [PMID: 8808447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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Kiernan L, Finkelstein FO, Kliger AS, Gorban-Brennan N, Juergensen P, Mooraki A, Brown E. Outcome of polymicrobial peritonitis in continuous ambulatory peritoneal dialysis patients. Am J Kidney Dis 1995; 25:461-4. [PMID: 7872325 DOI: 10.1016/0272-6386(95)90109-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Polymicrobial peritonitis is a relatively uncommon, but potentially serious complication that develops in continuous ambulatory peritoneal dialysis (CAPD) patients. Its cause and optimal management remain controversial. The authors reviewed the frequency and natural history of polymicrobial peritonitis in 432 CAPD patients. Of 1,405 episodes of peritonitis, 80 were polymicrobial (6%). Patients with polymicrobial peritonitis were similar to all CAPD patients in age, gender, race, and underlying renal disease. Diabetes mellitus, human immunodeficiency virus (HIV) status, and clinically apparent gastrointestinal disease did not predisposes patients to polymicrobial peritonitis. Thirty days after the polymicrobial peritonitis, 64 patients remained on CAPD (80%), and at 180 days 48 patients continued CAPD. Prior exit-site infections were present in 12 patients (14%) with polymicrobial peritonitis. Only 22% of patients required catheter removal to treat the infection. We conclude that polymicrobial peritonitis accounts for 6% of the total episodes of peritonitis; diabetes, HIV infection, and underlying gastrointestinal disease are not more prevalent in patients with multiorganism infections. Most patients continue CAPD therapy at 30 and 180 days after the episode of polymicrobial peritonitis.
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Boroujerdi-Rad H, Juergensen P, Mansourian V, Kliger AS, Finkelstein FO. Abdominal abscesses complicating peritonitis in continuous ambulatory peritoneal dialysis patients. Am J Kidney Dis 1994; 23:717-21. [PMID: 8172214 DOI: 10.1016/s0272-6386(12)70282-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Ten patients with end-stage renal disease maintained on continuous ambulatory peritoneal dialysis therapy developed abdominal abscesses between 1982 and 1992. During this period, 537 patients cared for in our continuous ambulatory peritoneal dialysis unit developed 1,345 episodes of peritonitis. All abdominal abscesses were attributed to concomitant or antecedent peritonitis, suggesting that abscesses developed in 0.7% of peritonitis episodes. Abdominal pain, tenderness, fever, and nausea and vomiting were the most common presenting symptoms and signs. Radiographic findings that were helpful in establishing the diagnosis included abnormalities on computed tomography (CT) scanning, ultrasound, and Indium scanning. Seven patients developed intraperitoneal abscesses, two developed abdominal wall abscesses, and one developed both abdominal wall and intraperitoneal abscesses. Drainage of the abscesses was performed in all cases either surgically or percutaneously. Two patients died. The remaining eight patients have been maintained on hemodialysis therapy. The present data suggest that abdominal abscesses are uncommon complications of continuous ambulatory peritoneal dialysis-associated peritonitis. Prompt diagnosis by clinical criteria and radiographic techniques is important to permit appropriate drainage of the abscess cavity.
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Tebben JA, Rigsby MO, Selwyn PA, Brennan N, Kliger A, Finkelstein FO. Outcome of HIV infected patients on continuous ambulatory peritoneal dialysis. Kidney Int 1993; 44:191-8. [PMID: 8102657 DOI: 10.1038/ki.1993.230] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A retrospective analysis of 39 HIV infected patients with ESRD cared for in New Haven from 1987 to June 1992 was performed. All patients had evidence for HIV infection at the start of CAPD therapy. Cumulative technique survival at one and two years was 43% and 27%, respectively. Only eight patients transferred to center dialysis. One and two year patient survival on CAPD was 58% and 54%, respectively. Mortality was higher in patients with advanced infection than in those with asymptomatic HIV infection. Hospitalization rates were also higher in patients with advanced infection. HIV infected patients had higher rates of peritonitis (3.9 episodes/outpatient CAPD year) compared to non-HIV infected patients (1.5 episodes/CAPD year), especially for pseudomonal and fungal infections. Active injection drug use and use of the "straight set" system were associated with increased rates of peritonitis. CAPD deserves consideration as a therapy for HIV infected patients with ESRD.
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