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Stachowska-Pietka J, Waniewski J, Olszowska A, Garcia-Lopez E, Yan J, Yao Q, Wankowicz Z, Lindholm B. Can one long peritoneal dwell with icodextrin replace two short dwells with glucose? Front Physiol 2024; 15:1339762. [PMID: 39050480 PMCID: PMC11266149 DOI: 10.3389/fphys.2024.1339762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 05/16/2024] [Indexed: 07/27/2024] Open
Abstract
Background Due to the slower dissipation of the osmotic gradient, icodextrin-based solutions, compared to glucose-based solutions, can improve water removal. We investigated scenarios where one icodextrin-based long dwell (Extraneal) replaced two glucose-based exchanges. Methods The three-pore model with icodextrin hydrolysis was used for numerical simulations of a single exchange to investigate the impact of different peritoneal dialysis schedules on fluid and solute removal in patients with different peritoneal solute transfer rates (PSTRs). We evaluated water removal (ultrafiltration, UF), absorbed mass of glucose (AbsGluc) and carbohydrates (AbsCHO, for glucose and glucose polymers), ultrafiltration efficiency (UFE = UF/AbsCHO) per exchange, and specified dwell time, and removed solute mass for sodium (ReNa), urea (ReU), and creatinine (ReCr) for a single peritoneal exchange with 7.5% icodextrin (Extraneal®) and glucose-based solutions (1.36% and 2.27%) and various dwell durations in patients with fast and average PSTRs. Results Introducing 7.5% icodextrin for the long dwell to replace one of three or four glucose-based exchanges per day leads to increased fluid and solute removal and higher UF efficiency for studied transport groups. Replacing two glucose-based exchanges with one icodextrin exchange provides higher or similar water removal and higher daily sodium removal but slightly lower daily removal of urea and creatinine, irrespective of the transport type present in the case of reference prescription with three and four daily exchanges. Conclusion One 7.5% icodextrin can replace two glucose solutions. Unlike glucose-based solutions, it resulted only in minor differences between PSTR groups in terms of water and solute removal with UFE remaining stable up to 16 h.
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Affiliation(s)
- Joanna Stachowska-Pietka
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw, Poland
- Department of Clinical Science, Intervention and Technology, Division of Renal Medicine and Baxter Novum, Karolinska Institutet, Stockholm, Sweden
| | - Jacek Waniewski
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw, Poland
| | - Anna Olszowska
- Central Clinical Hospital of the Ministry of National Defence, Military Institute of Medicine, Warsaw, Poland
| | - Elvia Garcia-Lopez
- Department of Clinical Science, Intervention and Technology, Division of Renal Medicine and Baxter Novum, Karolinska Institutet, Stockholm, Sweden
| | - Junfei Yan
- Baxter Healthcare Corporation, Shanghai, China
| | - Qiang Yao
- Baxter Healthcare Corporation, Shanghai, China
| | - Zofia Wankowicz
- Central Clinical Hospital of the Ministry of National Defence, Military Institute of Medicine, Warsaw, Poland
| | - Bengt Lindholm
- Department of Clinical Science, Intervention and Technology, Division of Renal Medicine and Baxter Novum, Karolinska Institutet, Stockholm, Sweden
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Nardelli L, Scalamogna A, Cicero E, Tripodi F, Vettoretti S, Alfieri C, Castellano G. Relationship between number of daily exchanges at CAPD start with clinical outcomes. Perit Dial Int 2024; 44:98-108. [PMID: 38115700 DOI: 10.1177/08968608231209849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Peritoneal dialysis (PD) continues to be demanding for patients affected by kidney failure. In kidney failure patients with residual kidney function, the employment of incremental PD, a less onerous dialytic prescription, could translate into a decrease burden on both health systems and patients. METHODS Between 1st January 2009 and 31st December 2021, 182 patients who started continuous ambulatory peritoneal dialysis (CAPD) at our institution were included in the study. The CAPD population was divided into three groups according to the initial number of daily CAPD exchanges prescribed: one or two (50 patients, CAPD-1/2 group), three (97 patients, CAPD-3 group) and four (35 patients, CAPD-4 group), respectively. RESULTS Multivariate analysis showed a difference in term of peritonitis free survival in CAPD-1/2 in comparison to CAPD-3 (hazard ratio (HR): 2.20, p = 0.014) and CAPD-4 (HR: 2.98, p < 0.01). A tendency towards a lower hospitalisation rate (CAPD-3 and CAPD-4 vs. CAPD-1/2, p = 0.11 and 0.13, respectively) and decreased mortality (CAPD-3 and CAPD-4 vs. CAPD-1/2, p = 0.13 and 0.22, respectively) in patients who started PD with less than three daily exchanges was detected. No discrepancy of the difference of the mean values between baseline and 24 months residual kidney function was observed among the three groups (p = 0.33). CONCLUSIONS One- or two-exchange CAPD start was associated with a lower risk of peritonitis in comparison to three- or four-exchange start. Furthermore, an initial PD prescription with less than three exchanges may be associated with an advantage in term of hospitalisation rate and patient survival.
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Affiliation(s)
- Luca Nardelli
- Division of Nephrology and Dialysis, IRCCS Ca' Granda Foundation Maggiore Policlinico Hospital, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Antonio Scalamogna
- Division of Nephrology and Dialysis, IRCCS Ca' Granda Foundation Maggiore Policlinico Hospital, Milan, Italy
| | - Elisa Cicero
- Division of Nephrology and Dialysis, IRCCS Ca' Granda Foundation Maggiore Policlinico Hospital, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Federica Tripodi
- Division of Nephrology and Dialysis, IRCCS Ca' Granda Foundation Maggiore Policlinico Hospital, Milan, Italy
| | - Simone Vettoretti
- Division of Nephrology and Dialysis, IRCCS Ca' Granda Foundation Maggiore Policlinico Hospital, Milan, Italy
| | - Carlo Alfieri
- Division of Nephrology and Dialysis, IRCCS Ca' Granda Foundation Maggiore Policlinico Hospital, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Giuseppe Castellano
- Division of Nephrology and Dialysis, IRCCS Ca' Granda Foundation Maggiore Policlinico Hospital, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
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Nardelli L, Scalamogna A, Cicero E, Castellano G. Incremental peritoneal dialysis allows to reduce the time spent for dialysis, glucose exposure, economic cost, plastic waste and water consumption. J Nephrol 2023; 36:263-273. [PMID: 36125629 DOI: 10.1007/s40620-022-01433-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 08/02/2022] [Indexed: 01/16/2023]
Abstract
BACKGROUND Incremental peritoneal dialysis (incPD) as the initial PD strategy represents a convenient and resource-sparing approach, but its impact on patient, healthcare and environment has not been thoroughly evaluated. METHODS This study includes 147 patients who started incPD at our institution between 1st January, 2009 and 31st December, 2021. Adequacy measures, peritoneal permeability parameters, peritonitis episodes, hospitalizations and increase in CAPD dose prescriptions were recorded. The savings related to cost, patient glucose exposure, time needed to perform dialysis, plastic waste, and water usage were compared to full-dose PD treatment. RESULTS During the study follow-up 11.9% of the patients transitioned from incremental to full dose PD. Patient cumulative probability of remaining on PD at 12, 24, 36, 48 and 60 months was 87.6, 65.4, 46.1, 30.1 and 17.5%, respectively. The median transition time from 1 to 2 exchanges, from 2 to 3 and 3 to 4 exchanges were 5, 9 and 11.8 months, respectively. Compared to full dose PD, 1, 2, and 3 exchanges per day led to reduction in glucose exposure of 20.4, 14.8 or 8.3 kg/patient-year, free lifetime gain of 18.1, 13.1 or 7.4 day/patient-year, a decrease in cost of 8700, 6300 or 3540 €/patient-year, a reduction in plastic waste of 139.2, 100.8 or 56.6 kg/patient-year, and a decline in water use of 25,056, 18,144 or 10,196 L/patient-year. CONCLUSIONS In comparison with full-dose PD, incPD allows to reduce the time spent for managing dialysis, glucose exposure, economic cost, plastic waste, and water consumption.
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Affiliation(s)
- Luca Nardelli
- Division of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via della Commenda 15, 20122, Milan, Italy.
- Department of Clinical Sciences and Community Health, Università degli studi di Milano, Milan, Italy.
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
| | - Antonio Scalamogna
- Division of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via della Commenda 15, 20122, Milan, Italy
| | - Elisa Cicero
- Division of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via della Commenda 15, 20122, Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli studi di Milano, Milan, Italy
| | - Giuseppe Castellano
- Division of Nephrology, Dialysis and Kidney Transplantation, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via della Commenda 15, 20122, Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli studi di Milano, Milan, Italy
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Fernandes A, Matias P, Branco P. Incremental Peritoneal Dialysis-Definition, Prescription, and Clinical Outcomes. KIDNEY360 2023; 4:272-277. [PMID: 36821618 PMCID: PMC10103348 DOI: 10.34067/kid.0006902022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
ABSTRACT Incremental peritoneal dialysis (IPD) is a strategy of RRT that is based on the prescription of a lower dose rather than the standard full dose of peritoneal dialysis (PD). The clearance goals are achieved through the combination of residual kidney function (RKF) and peritoneal clearance. The dialysis prescription should be increased as the RKF declines. IPD has been associated with clinical, economic, and environmental advantages. We emphasize possible better quality of life, fewer mechanical symptoms, lower costs, slight adverse metabolic effects, and less plastic waste and water consumption. The potential benefits for RKF preservation and the lower risk of peritonitis have also been discussed. There are some concerns regarding this strategy, such as inadequate clearance of uremic toxins and/or severe electrolyte disturbances due to undetected loss of RKF, lower clearance of medium-sized molecules (such as β-2-microglobulin) which mostly depends on the total PD dwell time, and patients' reluctance to dose adjustments. Current clinical evidence is based on moderate-quality to low-quality studies and suggests that the outcomes of IPD will be at least identical to those of full dose. This review aims to define IDP, discuss strategies for prescription, and review its advantages and disadvantages according to the current evidence.
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Affiliation(s)
| | - Patrícia Matias
- Nephrology Department, Hospital de Santa Cruz, Carnaxide, Portugal
| | - Patrícia Branco
- Nephrology Department, Hospital de Santa Cruz, Carnaxide, Portugal
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Glavinovic T, Hurst H, Hutchison A, Johansson L, Ruddock N, Perl J. Prescribing high-quality peritoneal dialysis: Moving beyond urea clearance. Perit Dial Int 2020; 40:293-301. [PMID: 32063213 DOI: 10.1177/0896860819893571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Urea removal in peritoneal dialysis (PD) has been a primary measure of dialysis adequacy, but its utility remains limited due to its poor correlation with the clearance of other important uraemic retention solutes and the low certainty of evidence relating peritoneal urea clearance and survival of individuals doing PD. Indeed, clearances of other uraemic solutes, electrolyte imbalances, hypoalbuminaemia and nutritional status, may provide a more holistic measure of dialysis adequacy when evaluating individuals on PD in addition to focusing on person-centred outcomes. Here, we review the history of the urea and creatinine-centric approach to dialysis adequacy and explore the potential importance of other uraemic retention solutes, electrolyte disturbances, phosphorus control, peritoneal protein losses and hypoalbuminaemia, as well as nutritional management to promote a broader multidimensional concept of clearance for PD.
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Affiliation(s)
- Tamara Glavinovic
- Division of Nephrology, Department of Medicine, University of Toronto, Ontario, Canada
| | - Helen Hurst
- Manchester Academic Health Science Centre, The University of Manchester, Manchester University NHS Trust, UK
| | - Alastair Hutchison
- Manchester Academic Health Science Centre, The University of Manchester, Manchester University NHS Trust, UK
| | - Lina Johansson
- Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, UK
| | | | - Jeffrey Perl
- Division of Nephrology, Department of Medicine, University of Toronto, Ontario, Canada.,Department of Medicine, Division of Nephrology, St. Michael's Hospital and the Keenan Research Center, Li Ka Shing Knowledge Institute, University of Toronto, Ontario, Canada
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Abstract
Incremental peritoneal dialysis (PD) has been variably defined. It involves taking advantage of the residual renal function that is usually present at initiation of dialysis to initially prescribe less onerous lower doses of PD while still achieving individualized clearance goals. We propose that incremental PD be defined as a strategy, rather than a particular regime, in which: (1) less than standard “full-dose” PD is initially prescribed in recognition of the value of residual renal function; (2) peritoneal clearance is initially less than the individualized clearance goal but the combination of peritoneal plus renal clearance achieves or exceeds that goal clearance; and (3) there is a clear intention to increase dose of PD as renal clearance declines and/or symptoms appear.Incremental PD by its nature lessens the workload of dialysis for those doing PD, reduces cost and exposure of the peritoneal membrane to glucose, and may lessen mechanical symptoms. Evidence that incremental PD improves clinical outcomes compared to the use of full-dose PD is lacking but one randomized controlled trial, multiple observational studies, and a systematic review all suggest that outcomes are at least as good. Given that incremental PD costs less and is inherently less onerous, it is reasonable, pending larger randomized trials, to adopt this strategy.
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Affiliation(s)
- Peter G Blake
- Division of Nephrology, Western University, London, ON, Canada
| | - Jie Dong
- Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Education, Beijing, China
| | - Simon J Davies
- Faculty of Medicine and Health Sciences, Keele University, Stoke-on-Trent, UK
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Lee Y, Chung SW, Park S, Ryu H, Lee H, Kim DK, Joo KW, Ahn C, Lee J, Oh KH. Incremental Peritoneal Dialysis May be Beneficial for Preserving Residual Renal Function Compared to Full-dose Peritoneal Dialysis. Sci Rep 2019; 9:10105. [PMID: 31300708 PMCID: PMC6626037 DOI: 10.1038/s41598-019-46654-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 06/28/2019] [Indexed: 11/09/2022] Open
Abstract
Maintaining residual renal function (RRF) is a crucial issue in peritoneal dialysis (PD). Incremental dialysis is the practice of initiating PD exchanges less than four times a day in consideration of RRF, and increasing dialysis dose in a step-wise manner as the RRF decreases. We aimed to compare the outcomes of incremental PD and full-dose PD in terms of RRF preservation and other outcomes. This was a single-center, observational study. Data were extracted retrospectively from a cohort of incident PD patients over 16 years old who started PD between 2007 and 2015 in the PD Unit of Seoul National University Hospital. We used inverse probability weighting (IPW) adjustment based on propensity scores to balance covariates between the incremental and full-dose PD groups. Multivariate, time-dependent Cox analyses were performed. Among 347 incident PD patients, 176 underwent incremental PD and 171 underwent conventional full-dose PD. After IPW adjustment, the incremental PD group exhibited a lower risk of developing anuria (hazard ratio [HR] 0.61, 95% confidence interval [CI] 0.43–0.88). Patient survival, technique survival, and peritonitis-free survival were all similar between these groups (P > 0.05 by log-rank test). Incremental PD was beneficial for preserving RRF and showed similar patient survival when compared to conventional full-dose PD.
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Affiliation(s)
- Yeonhee Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Sung Won Chung
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Seokwoo Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Hyunjin Ryu
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Hajeong Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Dong Ki Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Kwon Wook Joo
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Curie Ahn
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Joongyub Lee
- Prevention and Management Center, Inha University Hospital, Incheon, Korea.
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.
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Affiliation(s)
- Isaac Teitelbaum
- Department of Medicine, University of Colorado Hospital, Aurora, Colorado
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10
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Affiliation(s)
- Susie Q. Lew
- Division of Renal Diseases and Hypertension Department of Medicine, George Washington University Washington, DC, USA
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11
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Agar BU, Sloand JA. Single Daily Icodextrin Exchange as Initial and Solitary Therapy. Perit Dial Int 2017; 38:119-124. [DOI: 10.3747/pdi.2017.00130] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 09/21/2017] [Indexed: 12/17/2022] Open
Abstract
Background Incremental dialysis utilizes gradually increasing dialysis doses in response to declines in residual kidney function, and it is the preferred renal replacement therapy for patients who have just transitioned to end-stage renal disease (ESRD). Incremental peritoneal dialysis (PD) may impose fewer restrictions on patients’ lifestyle, help attenuate lifetime peritoneal and systemic exposure to glucose and its degradation products, and minimize connections that could compromise the sterile fluid path. In this study, we utilized a 3-pore kinetic model to assess fluid and solute removal during single daily icodextrin treatments for patients with varying glomerular filtration rates (GFR). Methods Single icodextrin exchanges of 8 to 16 hours using 2- and 2.5-L bag volumes were simulated for different patient transport types (i.e., high to low) to predict daily peritoneal ultrafiltration (UF), daily peritoneal sodium removal, and weekly total (peritoneal + residual kidney) Kt/V (Kt/VTotal) for patients with residual renal GFRs ranging from 0 to 15 mL/min/1.73 m2. Results Daily peritoneal UF varied from 359 to 607 mL, and daily peritoneal Na removal varied from 52 to 87 mEq depending on length of icodextrin exchange and bag volume. Both were effectively independent of patient transport type. All but very large patients (total body water [TBW] > 60 L) were predicted to achieve adequate dialysis (Kt/VTot al ≥ 1.7) with a GFR of 10 mL/min/1.73 m2, and small patients (TBW: 30 L) were predicted to achieve adequate dialysis with a GFR of 6 mL/min/1.73 m2. Conclusions A single daily icodextrin exchange can be tailored to augment urea, UF, and Na removal in patients with sufficient residual kidney function (RKF). A solitary icodextrin exchange may therefore be reasonable initial therapy for some incident ESRD patients.
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Affiliation(s)
- Baris U. Agar
- Global Science and Technology, Baxter Healthcare Corporation, Deerfield, IL, USA
| | - James A. Sloand
- Global Science and Technology, Baxter Healthcare Corporation, Deerfield, IL, USA
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