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Yuan W, Yu M, Zhang Z, Miao Q, Liu J, Zhang H, Zhou Q, Chen J, Zhai Y, Fang X, Xu H, Shen Q. The value of bioimpedance analysis in the assessment of hydration and nutritional status in children on chronic peritoneal dialysis. Ren Fail 2024; 46:2301531. [PMID: 38189097 PMCID: PMC10776048 DOI: 10.1080/0886022x.2023.2301531] [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] [Received: 08/28/2023] [Accepted: 12/29/2023] [Indexed: 01/09/2024] Open
Abstract
Bioimpedance analysis (BIA)-body composition monitoring (BCM) has been used to evaluate the hydration and nutritional status of adults and children on dialysis. However, its clinical application still has challenges, so further exploration is valuable. We used BIA-BCM to evaluate the hydration and nutritional status of children undergoing chronic peritoneal dialysis from 1 July 2021 to 31 December 2022 in the Children's Hospital of Fudan University to explore the clinical value of this method. A total of 84 children on chronic peritoneal dialysis (PD) were included. In the PD group, 16 (19.05%) and 31 (36.90%) had mild and severe overhydration (OH), respectively; 41.27% (26/63) had a low lean tissue index (LTI). In the PD group, patients with relative OH (Re-OH) > 5.6% had significantly higher systolic blood pressure (SBP) and SBP z score (SBPz). Patients with LTI > 12% had significantly higher body mass index (BMI) and BMI z score (BMIz). Canonical correlation analysis indicated a linear relationship (ρ = 0.708) between BIA-BCM hydration and the clinical hydration indicator and a linear relationship (ρ = 0.995) between the BIA-BCM nutritional indicator and the clinical nutritional indicator. A total of 56% of children on chronic peritoneal dialysis had OH, and 41% had a low LTI. In PD patients, SBP and SBPz were correlated with BIA-BCM Re-OH, and BMI and BMIz were correlated with BIA-BCM LTI. BIA-BCM indicators have good clinical value in evaluating hydration and nutrition.
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Affiliation(s)
- Wei Yuan
- Department of Nephrology, Children’s Hospital -of Fudan University, National Children’s Medical Center, Shanghai, China
- Shanghai Kidney Development & Pediatric Kidney Disease Research Center, Shanghai, China
| | - Minghui Yu
- Department of Nephrology, Children’s Hospital -of Fudan University, National Children’s Medical Center, Shanghai, China
- Shanghai Kidney Development & Pediatric Kidney Disease Research Center, Shanghai, China
| | - Zhiqing Zhang
- Department of Nephrology, Children’s Hospital -of Fudan University, National Children’s Medical Center, Shanghai, China
- Shanghai Kidney Development & Pediatric Kidney Disease Research Center, Shanghai, China
| | - Qianfan Miao
- Department of Nephrology, Children’s Hospital -of Fudan University, National Children’s Medical Center, Shanghai, China
- Shanghai Kidney Development & Pediatric Kidney Disease Research Center, Shanghai, China
| | - Jiaojiao Liu
- Department of Nephrology, Children’s Hospital -of Fudan University, National Children’s Medical Center, Shanghai, China
- Shanghai Kidney Development & Pediatric Kidney Disease Research Center, Shanghai, China
| | - Hui Zhang
- Department of Nephrology, Children’s Hospital -of Fudan University, National Children’s Medical Center, Shanghai, China
- Shanghai Kidney Development & Pediatric Kidney Disease Research Center, Shanghai, China
| | - Qing Zhou
- Department of Nephrology, Children’s Hospital -of Fudan University, National Children’s Medical Center, Shanghai, China
- Shanghai Kidney Development & Pediatric Kidney Disease Research Center, Shanghai, China
| | - Jing Chen
- Department of Nephrology, Children’s Hospital -of Fudan University, National Children’s Medical Center, Shanghai, China
- Shanghai Kidney Development & Pediatric Kidney Disease Research Center, Shanghai, China
| | - Yihui Zhai
- Department of Nephrology, Children’s Hospital -of Fudan University, National Children’s Medical Center, Shanghai, China
- Shanghai Kidney Development & Pediatric Kidney Disease Research Center, Shanghai, China
| | - Xiaoyan Fang
- Department of Nephrology, Children’s Hospital -of Fudan University, National Children’s Medical Center, Shanghai, China
- Shanghai Kidney Development & Pediatric Kidney Disease Research Center, Shanghai, China
| | - Hong Xu
- Department of Nephrology, Children’s Hospital -of Fudan University, National Children’s Medical Center, Shanghai, China
- Shanghai Kidney Development & Pediatric Kidney Disease Research Center, Shanghai, China
- National Key Laboratory of Kidney Diseases, Shanghai, China
| | - Qian Shen
- Department of Nephrology, Children’s Hospital -of Fudan University, National Children’s Medical Center, Shanghai, China
- Shanghai Kidney Development & Pediatric Kidney Disease Research Center, Shanghai, China
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Fadel FI, Salah DM, Mawla MAA, Galal E, Sayed S. Assessment of volume status of pediatric hemodialysis patients. Pediatr Nephrol 2024:10.1007/s00467-024-06409-2. [PMID: 38839693 DOI: 10.1007/s00467-024-06409-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 04/08/2024] [Accepted: 05/11/2024] [Indexed: 06/07/2024]
Abstract
BACKGROUND Accurate volume status assessment and dry weight achievement are the most challenging goals for a nephrologist. We aimed to evaluate the role of ultrasonographic parameters including lung ultrasound and inferior vena cava (IVC) measurements as practical methods of volume status assessment in children on hemodialysis by comparing them with established techniques, such as clinical evaluation and bioimpedance spectroscopy. METHODS A prospective cross-sectional study compared pre- and post-dialysis volume status using bioimpedance spectroscopy (BIS) parameters and clinical data with ultrasonographic lung B-lines and IVC parameters in children on regular hemodialysis. RESULTS A total 60 children (mean age 9.4 ± 2.8 years) were enrolled. Twenty patients (33.3%) were clinically overloaded to varying degrees (17 patients had mild to moderate signs of fluid overload and 3 patients had moderate to severe signs of fluid overload). All other patients (66.7%) were clinically euvolemic. Sonographic parameters were significantly lower post-dialysis than pre-dialysis, including lung B-line count and IVC diameter. IVC collapsibility index mean was significantly higher post-dialysis than pre-dialysis. There was a significant correlation between the lung B-line count, IVC parameters, and BIS-measured overhydration both before and after hemodialysis. Nine patients had ≥ 8 B-lines post-dialysis, only three of them were hypertensive. CONCLUSIONS Clinical criteria alone are not specific for determining accurate fluid status in pediatric hemodialysis patients. Lung B-line score, IVC parameters, and BIS may be complementary to each other and to clinical data. Lung B-lines outperform IVC measurements and BIS in subclinical volume overload detection in pediatric hemodialysis patients.
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Affiliation(s)
- Fatina I Fadel
- Pediatric department, Faculty of Medicine, Cairo University, 4 Extension of Nobar Street, Cairo, Egypt
| | - Doaa M Salah
- Pediatric department, Faculty of Medicine, Cairo University, 4 Extension of Nobar Street, Cairo, Egypt
| | | | - Eman Galal
- Pediatric department, Faculty of Medicine, Cairo University, 4 Extension of Nobar Street, Cairo, Egypt
| | - Shaimaa Sayed
- Pediatric department, Faculty of Medicine, Cairo University, 4 Extension of Nobar Street, Cairo, Egypt.
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Harvey E. Bioimpedance analysis in children on peritoneal dialysis: to fill or not to fill? Pediatr Nephrol 2024; 39:1319-1321. [PMID: 38206433 DOI: 10.1007/s00467-023-06274-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024]
Affiliation(s)
- Elizabeth Harvey
- Hospital for Sick Children, Toronto, Canada.
- University of Toronto, Toronto, Canada.
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Santiago LN, Martins PC, Silva DAS. Utilization of bioelectrical impedance vector analysis (BIVA) in children and adolescents without diagnosed diseases: a systematic review. Physiol Meas 2024; 45:02TR02. [PMID: 38306664 DOI: 10.1088/1361-6579/ad252e] [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] [Received: 08/19/2023] [Accepted: 02/02/2024] [Indexed: 02/04/2024]
Abstract
Introduction. Bioelectrical impedance vector analysis (BIVA) emerges as a technique that utilizes raw parameters of bioelectrical impedance analysis and assumes the use of a reference population for information analysis.Objective. To summarize the reference values, main studies objectives, approaches, pre-test recommendations and technical characteristics of the devices employed in studies utilizing BIVA among children and adolescents without diagnosed diseases.Methods. A systematic search was conducted in nine electronic databases (CINAHL, LILACS, PubMed, SciELO, Scopus, SPORTDiscus, Science Direct, MEDLINE, and Web of Science). Studies with different designs which allowed extracting information regarding reference values of BIVA in children and adolescents without diagnosed diseases, aged 19 years or younger, were included. The systematic review followed PRISMA procedures and was registered in PROSPERO (registration: CRD42023391069).Results. After applying the eligibility criteria, 36 studies were included. Twenty studies (55.6%) analyzed body composition using BIVA, thirteen studies (36.1%) aimed to establish reference values for BIVA, and three studies (8.3%) investigated the association of physical performance with BIVA. There was heterogeneity regarding the reference populations employed by the studies. Fifteen studies used their own sample as a reference (41.6%), four studies used the adult population as a reference (11.1%), and five studies used reference values from athletes (13.9%).Conclusion. Nutricional status and body composition were the main studies objectives. References values were not always adequate or specific for the sample and population. Furthermore, there was no pattern of pre-test recommendations among the studies.
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Affiliation(s)
- Leandro Narciso Santiago
- Research Center in Kinanthropometry and Human Performance, Physical Education Department, Sports Center, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Priscila Custódio Martins
- Research Center in Kinanthropometry and Human Performance, Physical Education Department, Sports Center, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Diego Augusto Santos Silva
- Research Center in Kinanthropometry and Human Performance, Physical Education Department, Sports Center, Federal University of Santa Catarina, Florianopolis, SC, Brazil
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Nikitiuk BE, Rydzewska-Rosołowska A, Kakareko K, Głowińska I, Hryszko T. On Whether Ca-125 Is the Answer for Diagnosing Overhydration, Particularly in End-Stage Kidney Disease Patients-A Systematic Review. Int J Mol Sci 2024; 25:2192. [PMID: 38396869 PMCID: PMC10889175 DOI: 10.3390/ijms25042192] [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] [Received: 01/15/2024] [Revised: 02/04/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Overhydration (OH) is a prevalent medical problem that occurs in patients with kidney failure, but a specific marker has still not been found. Patients requiring kidney replacement therapy suffer from a water imbalance, which is correlated with mortality rates in this population. Currently, clinicians employ techniques such as bioimpedance spectroscopy (BIS) and ultrasound (USG) markers of overhydration or markers of heart and kidney function, namely NT-pro-BNP, GFR, or creatinine levels. New serum markers, including but not limited to Ca-125, galectin-3 (Gal-3), adrenomedullin (AMD), and urocortin-2 (UCN-2), are presently under research and have displayed promising results. Ca-125, which is a protein mainly used in ovarian cancer diagnoses, holds great potential to become an OH marker. It is currently being investigated by cardiologists as it corresponds to the volume status in heart failure (HF) and ventricular hypertrophy, which are also associated with OH. The need to ascertain a more precise marker of overhydration is urgent mainly because physical examinations are exceptionally inaccurate. The signs and symptoms of overhydration, such as edema or a gradual increase in body mass, are not always present, notably in patients with chronic kidney disease. Metabolic disruptions and cachexia can give a false picture of the hydration status. This review paper summarizes the existing knowledge on the assessment of a patient's hydration status, focusing specifically on kidney diseases and the role of Ca-125.
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Affiliation(s)
| | - Alicja Rydzewska-Rosołowska
- 2nd Department of Nephrology, Hypertension, and Internal Medicine with Dialysis Unit, Medical University of Bialystok, 15-276 Bialystok, Poland; (B.E.N.); (K.K.); (I.G.); (T.H.)
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Benefits of BNP/NT-proBNP serum level evaluation for dry weight adjustment in pediatric hemodialysis patients. Pediatr Nephrol 2023; 38:811-818. [PMID: 35758998 DOI: 10.1007/s00467-022-05658-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 06/01/2022] [Accepted: 06/01/2022] [Indexed: 01/19/2023]
Abstract
BACKGROUND Dry weight (DW) adjustment in children on hemodialysis (HD) can be challenging. It relies on clinical evaluation and additional supports. Our aim was to study the benefits of cardiac biomarker assessment, in addition to the more commonly used technique, bioimpedance spectroscopy (BIS), and clinical signs for DW prescription in pediatric HD patients. METHOD Observational study including 41 children on HD in three pediatric HD centers in the Paris region. During one session, BIS was performed before the session and serum levels of BNP and NT-proBNP were analyzed before and after the session. RESULTS Median pre-dialysis level of BNP was 87 ng/L [24-192] and NT-proBNP 968 ng/L [442-4828]. Cardiac biomarker levels showed positive correlation with the BIS hydration status evaluation (p = 0.004). The most appropriate cutoff for pre-dialysis BNP to detect significant overhydration (OH) was 165 ng/L (sensitivity 0.67, specificity 0.84). Based on the BIS evaluation, only 32% of patients with high blood pressure (BP) had OH, whereas in the normal BP group, 33% had significant OH. CONCLUSIONS DW prescription for children on HD should not only rely on clinical evaluation, particularly BP, but should also include additional helpful parameters. BIS is well-validated in children, but it has limitations in non-cooperative patients, and its cost can limit its use in some settings. Cardiac biomarkers, especially BNP, were well-correlated to hydration status evaluated by BIS, and thus could add valuable information for individual patient management and DW assessment. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Mitrosz-Gołębiewska K, Rydzewska-Rosołowska A, Kakareko K, Zbroch E, Hryszko T. Water - A life-giving toxin - A nephrological oxymoron. Health consequences of water and sodium balance disorders. A review article. Adv Med Sci 2022; 67:55-65. [PMID: 34979423 DOI: 10.1016/j.advms.2021.12.002] [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] [Received: 04/13/2021] [Revised: 08/24/2021] [Accepted: 12/15/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND This article aims to reveal misconceptions about methods of assessment of hydration status and impact of the water disorders on the progression of kidney disease or renal dysfunction. MATERIALS AND METHODS The PubMed database was searched for reviews, meta-analyses and original articles on hydration, volume depletion, fluid overload and diagnostic methods of hydration status, which were published in English. RESULTS Based on the results of available literature the relationship between the amount of fluid consumed, and the rate of progression of chronic kidney disease, autosomal dominant polycystic kidney disease, and kidney stones disease was discussed. Selected aspects of the assessment of the hydration level in clinical practice based on physical examination, laboratory tests, and imaging are presented. The subject of in-hospital fluid therapy is discussed. Based on available randomized studies, an attempt was made to assess, which fluids should be selected for intravenous treatment. CONCLUSIONS There is some evidence for the beneficial effect of increased water intake in preventing recurrent cystitis and kidney stones, but there are still no convincing data for chronic kidney disease and autosomal dominant polycystic kidney disease. Further studies are needed to clarify the aforementioned issues and establish a reliable way to assess the volemia and perform suitable fluid therapy.
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Affiliation(s)
- Katarzyna Mitrosz-Gołębiewska
- 2nd Department of Nephrology and Hypertension with Dialysis Unit, Medical University of Bialystok, Bialystok, Poland.
| | - Alicja Rydzewska-Rosołowska
- 2nd Department of Nephrology and Hypertension with Dialysis Unit, Medical University of Bialystok, Bialystok, Poland
| | - Katarzyna Kakareko
- 2nd Department of Nephrology and Hypertension with Dialysis Unit, Medical University of Bialystok, Bialystok, Poland
| | - Edyta Zbroch
- Department of Internal Medicine and Hypertension, Medical University od Bialystok, Bialystok, Poland
| | - Tomasz Hryszko
- 2nd Department of Nephrology and Hypertension with Dialysis Unit, Medical University of Bialystok, Bialystok, Poland
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Yontem A, Cagli C, Yildizdas D, Horoz OO, Ekinci F, Atmis B, Bayazit AK. Bedside sonographic assessments for predicting predialysis fluid overload in children with end-stage kidney disease. Eur J Pediatr 2021; 180:3191-3200. [PMID: 33928452 DOI: 10.1007/s00431-021-04086-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 04/16/2021] [Accepted: 04/21/2021] [Indexed: 10/21/2022]
Abstract
Although the number of studies evaluating methods to predict fluid overload is increasing, the assessment of fluid status in children on dialysis is still fraught with inaccuracies. We aimed to evaluate the predictive capability of lung ultrasounds and the inferior vena cava collapsibility index (cIVC) in predialysis overhydration in children with end-stage kidney disease. Ten children with end-stage kidney disease who were on an intermittent hemodialysis program were included. The hydration status of the patients was clinically evaluated. Moreover, 30 predialysis and 30 postdialysis lung ultrasound, cIVC, and bioimpedance spectroscopy (BIS) measurements were performed. The median age of the participants was 14 (IQR, 13-15) years, and two (20%) were male. There was a strong positive correlation between the predialysis total number of B-lines and predialysis fluid overload (r=0.764, p<0.001). Additionally, there was a moderate negative correlation between predialysis cIVC and predialysis fluid overload (r=-0.599, p=0.002). Although the moderate correlation was determined between the postdialysis fluid overload and total number of B-lines, no correlation was determined using cIVC. Receiver operating characteristic curves demonstrated that the total number of B-lines and cIVC could successfully predict the predialysis fluid overload (relative hydration >7% derived from the BIS; AUROC 0.82 and 0.80, respectively). When both evaluations were combined, if either the total number of B-lines or the cIVC was outside the corresponding cutoff range (>10.5 and ≤23.5, respectively), it was detected in 16 out of 17 sessions (sensitivity 94%). If either one was outside the corresponding cutoff range (total number of B-lines >10.5 and cIVC ≤18.2), the severe predialysis fluid overload was predicted successfully in all eight (100%) sessions. Conclusion: Randomized controlled studies are needed to prove the reliability of the combined use of lung ultrasounds and cIVC in the assessment of predialysis fluid overload. What is Known: • The association of chronic fluid overload with increased morbidity and mortality raises the need for optimal determination of fluid overload in pediatric patients who are dialysis-dependent at a young age. • The linear correlation between the total number of B-lines on lung ultrasound images and fluid overload by weight has been shown. What is New: • This study evaluates the lung ultrasound and inferior vena cava collapsibility index combined in predicting fluid overload in dialytic children. • If either the total number of B-lines or the cIVC was outside the corresponding cutoff range (>10.5 and cIVC ≤18.2, respectively), the severe predialysis fluid overload was predicted successfully in all eight (100%) sessions.
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Affiliation(s)
- Ahmet Yontem
- Faculty of Medicine, Division of Pediatric Intensive Care Unit, Çukurova University, Sarıçam, Adana, Turkey.
| | - Cagla Cagli
- Faculty of Medicine, Division of Pediatric Nephrology, Çukurova University, Sarıçam, Adana, Turkey
| | - Dincer Yildizdas
- Faculty of Medicine, Division of Pediatric Intensive Care Unit, Çukurova University, Sarıçam, Adana, Turkey
| | - Ozden Ozgur Horoz
- Faculty of Medicine, Division of Pediatric Intensive Care Unit, Çukurova University, Sarıçam, Adana, Turkey
| | - Faruk Ekinci
- Faculty of Medicine, Division of Pediatric Intensive Care Unit, Çukurova University, Sarıçam, Adana, Turkey
| | - Bahriye Atmis
- Faculty of Medicine, Division of Pediatric Nephrology, Çukurova University, Sarıçam, Adana, Turkey
| | - Aysun Karabay Bayazit
- Faculty of Medicine, Division of Pediatric Nephrology, Çukurova University, Sarıçam, Adana, Turkey
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9
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Eduardo PM, Mario GL, Carlos César PM, Mayra MA, Sara HY, E BN. Bioelectric, tissue, and molecular characteristics of the gastric mucosa at different times of ischemia. Exp Biol Med (Maywood) 2021; 246:1968-1980. [PMID: 34130514 PMCID: PMC8474982 DOI: 10.1177/15353702211021601] [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] [Received: 01/21/2021] [Accepted: 05/13/2021] [Indexed: 11/16/2022] Open
Abstract
Gastrointestinal ischemia may be presented as a complication associated with late shock detection in patients in critical condition. Prolonged ischemia can cause mucosal integrity to lose its barrier function, triggering alterations that can induce organ dysfunction and lead to death. Electrical impedance spectroscopy has been proposed to identify early alteration in ischemia-induced gastric mucosa in this type of patients. This work analyzed changes in impedance parameters, and tissue and molecular alterations that allow us to identify the time of ischemia in which the gastric mucosa still maintains its barrier function. The animals were randomly distributed in four groups: Control, Ischemia 60, 90, and 120 min. Impedance parameters were measured and predictive values were determined to categorize the degree of injury using a receiver operating characteristic curve. Markers of inflammatory process and apoptosis (iNOS, TNFα, COX-2, and Caspase-3) were analyzed. The largest increase in impedance parameters occurred in the ischemia 90 and 120 min groups, with resistance at low frequencies (RL) and reactance at high frequencies (XH) being the most related to damage, allowing prediction of the occurrence of reversible and irreversible tissue damage. Histological analysis and apoptosis assay showed progressive mucosal deterioration with irreversible damage (p < 0.001) starting from 90 min of ischemia. Furthermore, a significant increase in the expression of iNOS, TNFα, and COX-2 was identified in addition to apoptosis in the gastric mucosa starting from 90 min of ischemia. Tissue damage generated by an ischemia time greater than 60 min induces loss of barrier function in the gastric mucosa.
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Affiliation(s)
- Peña-Mercado Eduardo
- Posgrado en Ciencias Naturales e Ingenieria, Unidad Cuajimalpa,
Universidad Autonoma Metropolitana, CDMX 05340, Mexico
| | - Garcia-Lorenzana Mario
- Departamento de Biologia de la Reproduccion, Unidad Iztapalapa,
Universidad Autonoma Metropolitana, CDMX 09340, Mexico
| | - Patiño-Morales Carlos César
- Laboratorio de Investigacion en Biologia del Desarrollo y
Teratogenesis Experimental, Hospital Infantil de Mexico, Federico Gomez, CDMX
06720, Mexico
| | - Montecillo-Aguado Mayra
- Doctorado en Ciencias Biologicas, Facultad de Medicina,
Universidad Nacional Autonoma de Mexico, CDMX 04510, Mexico
| | - Huerta-Yepez Sara
- Unidad de Investigacion en Enfermedades Hematoncologicas,
Hospital Infantil de Mexico, Federico Gomez, CDMX 06720, Mexico
| | - Beltran Nohra E
- Departamento de Procesos y Tecnologia, Unidad Cuajimalpa,
Universidad Autonoma Metropolitana, CDMX 05340, Mexico
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10
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Hemodiafiltration maintains a sustained improvement in blood pressure compared to conventional hemodialysis in children-the HDF, heart and height (3H) study. Pediatr Nephrol 2021; 36:2393-2403. [PMID: 33629141 DOI: 10.1007/s00467-021-04930-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 11/08/2020] [Accepted: 01/07/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Hypertension is prevalent in children on dialysis and associated with cardiovascular disease. We studied the blood pressure (BP) trends and the evolution of BP over 1 year in children on conventional hemodialysis (HD) vs. hemodiafiltration (HDF). METHODS This is a post hoc analysis of the "3H - HDF-Hearts-Height" dataset, a multicenter, parallel-arm observational study. Seventy-eight children on HD and 55 on HDF who had three 24-h ambulatory BP monitoring (ABPM) measures over 1 year were included. Mean arterial pressure (MAP) was calculated and hypertension defined as 24-h MAP standard deviation score (SDS) ≥95th percentile. RESULTS Poor agreement between pre-dialysis systolic BP-SDS and 24-h MAP was found (mean difference - 0.6; 95% limits of agreement -4.9-3.8). At baseline, 82% on HD and 44% on HDF were hypertensive, with uncontrolled hypertension in 88% vs. 25% respectively; p < 0.001. At 12 months, children on HDF had consistently lower MAP-SDS compared to those on HD (p < 0.001). Over 1-year follow-up, the HD group had mean MAP-SDS increase of +0.98 (95%CI 0.77-1.20; p < 0.0001), whereas the HDF group had a non-significant increase of +0.15 (95%CI -0.10-0.40; p = 0.23). Significant predictors of MAP-SDS were dialysis modality (β = +0.83 [95%CI +0.51 - +1.15] HD vs. HDF, p < 0.0001) and higher inter-dialytic-weight-gain (IDWG)% (β = 0.13 [95%CI 0.06-0.19]; p = 0.0003). CONCLUSIONS Children on HD had a significant and sustained increase in BP over 1 year compared to a stable BP in those on HDF, despite an equivalent dialysis dose. Higher IDWG% was associated with higher 24-h MAP-SDS in both groups.
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Nelms CL, Shaw V, Greenbaum LA, Anderson C, Desloovere A, Haffner D, Oosterveld MJS, Paglialonga F, Polderman N, Qizalbash L, Rees L, Renken-Terhaerdt J, Tuokkola J, Vande Walle J, Shroff R, Warady BA. Assessment of nutritional status in children with kidney diseases-clinical practice recommendations from the Pediatric Renal Nutrition Taskforce. Pediatr Nephrol 2021; 36:995-1010. [PMID: 33319327 PMCID: PMC7910229 DOI: 10.1007/s00467-020-04852-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 10/03/2020] [Accepted: 11/06/2020] [Indexed: 02/07/2023]
Abstract
In children with kidney diseases, an assessment of the child's growth and nutritional status is important to guide the dietary prescription. No single metric can comprehensively describe the nutrition status; therefore, a series of indices and tools are required for evaluation. The Pediatric Renal Nutrition Taskforce (PRNT) is an international team of pediatric renal dietitians and pediatric nephrologists who develop clinical practice recommendations (CPRs) for the nutritional management of children with kidney diseases. Herein, we present CPRs for nutritional assessment, including measurement of anthropometric and biochemical parameters and evaluation of dietary intake. The statements have been graded using the American Academy of Pediatrics grading matrix. Statements with a low grade or those that are opinion-based must be carefully considered and adapted to individual patient needs based on the clinical judgment of the treating physician and dietitian. Audit and research recommendations are provided. The CPRs will be periodically audited and updated by the PRNT.
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Affiliation(s)
| | - Vanessa Shaw
- University College London Great Ormond Street Hospital Institute of Child Health, London, WC1N 3JH, UK
- University of Plymouth, Plymouth, UK
| | - Larry A Greenbaum
- Emory University, Atlanta, GA, USA
- Children's Healthcare of Atlanta, Atlanta, GA, USA
| | - Caroline Anderson
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | | | - Dieter Haffner
- Children's Hospital, Hannover Medical School, Hannover, Germany
| | - Michiel J S Oosterveld
- Emma Children's Hospital, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Fabio Paglialonga
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | | | | | - Lesley Rees
- University College London Great Ormond Street Hospital Institute of Child Health, London, WC1N 3JH, UK
| | - José Renken-Terhaerdt
- Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jetta Tuokkola
- Children's Hospital and Clinical Nutrition Unit, Internal Medicine and Rehabilitation, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | | | - Rukshana Shroff
- University College London Great Ormond Street Hospital Institute of Child Health, London, WC1N 3JH, UK.
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12
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Shroff R. Peritoneal dialysis in children: Reaching milestones but room for growth. Perit Dial Int 2021; 41:137-138. [DOI: 10.1177/0896860821995385] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Rukshana Shroff
- University College London Great Ormond Street Institute of Child Health, London, UK
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Differential assessment of fluid compartments by bioimpedance in pediatric patients with kidney diseases. Pediatr Nephrol 2021; 36:1843-1850. [PMID: 33580407 PMCID: PMC8172513 DOI: 10.1007/s00467-020-04912-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 12/10/2020] [Accepted: 12/24/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND The kidney is central for maintaining water balance. As a corollary, patients with impaired kidney function are prone to pathological fluid volumes. Total body water (TBW) is distributed between the extracellular (ECW) and intracellular fluid compartments (ICW). In clinical practice, the judgment of hydration status does not allow to distinguish between ECW and ICW. Here, we evaluate the hydration status in children with chronic kidney disease by analyzing TBW, ECW, and ICW. METHODS Hydration was quantified using whole-body bioimpedance spectroscopy (BCM) in 128 outpatients (1-25 years, 52 girls). Forty-two were transplanted (TPL), 43 suffered from chronic kidney disease without kidney replacement therapy (CKD), 21 were on peritoneal dialysis (PD), and 22 on hemodialysis (HD). HD patients were investigated before, after, and sequentially during dialysis. RESULTS The ECW and ICW values obtained by BCM were of the same magnitude as those from the literature using isotope dilution. When compared with a healthy control group, TBW was increased in 9 TPL, 9 CKD, 1 PD, and 11 HD patients before but in none after dialysis. The decline of overhydration during dialysis (p < 0.001, n = 22) correlated with the change in body weight (R2 = 0.62). The kinetics of fluid compartment changes assessed twice in six HD patients revealed a reproducible linear decay of the ECW/ICW ratio due to an increase of ICW and a decrease of ECW. CONCLUSION BCM quantifies TBW and acute changes of ECW and ICW in children with chronic kidney failure. The clinical utility of measuring TBW, ECW, and ICW should be defined in the future.
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Clinical Relevance of Fluid Volume Status Assessment by Bioimpedance Spectroscopy in Children Receiving Maintenance Hemodialysis or Peritoneal Dialysis. J Clin Med 2020; 10:jcm10010079. [PMID: 33379300 PMCID: PMC7795279 DOI: 10.3390/jcm10010079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 12/18/2020] [Accepted: 12/24/2020] [Indexed: 12/22/2022] Open
Abstract
Bioimpedance spectroscopy (BIS) is a noninvasive method used to evaluate body fluid volume status in dialysis patients, but reports on its effectiveness in pediatrics are scarce. We investigated the correlation between BIS and clinical characteristics and identified the changes in patients whose dialysis prescription was modified based on BIS. The medical records of children on maintenance dialysis who had undergone BIS between 2017 and 2019 were reviewed. Of the 49 patients, 14 were overhydrated, based on the >15% proportion of overhydration relative to extracellular water (OH/ECW) measured by BIS. Intake of ≥two antihypertensive medications was noted in the majority (85.7%) of children with fluid overload and only in 48.6% of those without fluid overload (p = 0.017). Elevated blood pressure despite medication use was significantly more common in patients with fluid overload than in those without fluid overload (78.6% vs. 45.7%, p = 0.037). Of the 14 overhydrated children, 13 (92.9%) had significant changes in body weight, OH/ECW, the number of antihypertensive drugs, left ventricular end-diastolic diameter, and cardiothoracic ratio after the change in dialysis prescription. BIS is a useful and noninvasive method to assess fluid status in dialysis children. Long-term follow-up and correlation with a more objective clinical indicator of fluid overload is necessary to verify the clinical effectiveness of BIS.
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Teitelbaum I, Glickman J, Neu A, Neumann J, Rivara MB, Shen J, Wallace E, Watnick S, Mehrotra R. KDOQI US Commentary on the 2020 ISPD Practice Recommendations for Prescribing High-Quality Goal-Directed Peritoneal Dialysis. Am J Kidney Dis 2020; 77:157-171. [PMID: 33341315 DOI: 10.1053/j.ajkd.2020.09.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 12/29/2022]
Abstract
The recently published 2020 International Society for Peritoneal Dialysis (ISPD) practice recommendations regarding prescription of high-quality goal-directed peritoneal dialysis differ fundamentally from previous guidelines that focused on "adequacy" of dialysis. The new ISPD publication emphasizes the need for a person-centered approach with shared decision making between the individual performing peritoneal dialysis and the clinical care team while taking a broader view of the various issues faced by that individual. Cognizant of the lack of strong evidence for the recommendations made, they are labeled as "practice points" rather than being graded numerically. This commentary presents the views of a work group convened by the National Kidney Foundation's Kidney Disease Outcomes Quality Initiative (KDOQI) to assess these recommendations and assist clinical providers in the United States in interpreting and implementing them. This will require changes to the current clinical paradigm, including greater resource allocation to allow for enhanced services that provide a more holistic and person-centered assessment of the quality of dialysis delivered.
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Affiliation(s)
- Isaac Teitelbaum
- Division of Nephrology, Department of Medicine, University of Colorado, Aurora, CO
| | - Joel Glickman
- Division of Nephrology, Department of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Alicia Neu
- Division of Pediatric Nephrology, Department of Pediatrics, Johns Hopkins University, Baltimore, MD
| | | | - Matthew B Rivara
- Division of Nephrology, Department of Medicine, University of Washington, Seattle, WA
| | - Jenny Shen
- Division of Nephrology, Department of Medicine, Harbor-UCLA Medical Center, Torrance, CA
| | - Eric Wallace
- Division of Nephrology, Department of Medicine, University of Alabama, Birmingham, AL
| | - Suzanne Watnick
- Division of Nephrology, Department of Medicine, University of Washington, Seattle, WA; Northwest Kidney Centers, Seattle, WA
| | - Rajnish Mehrotra
- Division of Nephrology, Department of Medicine, University of Washington, Seattle, WA.
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16
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Karava V, Stabouli S, Dotis J, Liakopoulos V, Papachristou F, Printza N. Tracking hydration status changes by bioimpedance spectroscopy in children on peritoneal dialysis. Perit Dial Int 2020; 41:217-225. [PMID: 32783508 DOI: 10.1177/0896860820945813] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND This 6-month prospective longitudinal study investigates the association between hydration status changes using bioimpedance spectroscopy (BIS) and systolic blood pressure (SBP), pulse pressure (PP), and serum albumin (sAlb) changes in children on peritoneal dialysis (PD). METHODS Thirteen patients (median age: 12.58 years) were enrolled. Normal hydration, moderate hydration, severe overhydration, and dehydration were defined as -7% ≤ relative overhydration (Re-OH) < +7%, +7% ≤ Re-OH < +15%, Re-OH ≥ +15%, and Re-OH < -7%, respectively. Automated office blood pressure z-score, sAlb, and weight z-score were recorded. RESULTS Fifty-two Re-OH measurements were recorded: three in five, four in five, five in two, and seven in one patient, respectively. SBP was higher and sAlb lower in cases with severe overhydration (9 readings) (p < 0.001, p < 0.001), but distribution of these parameters did not differ between normal hydration/dehydration (28 readings) and moderate overhydration (15 readings) cases. In patients with hydration status change, SBP and PP were higher while sAlb lower in cases with higher hydration status level (p = 0.026, p = 0.05, and p = 0.109, respectively). In all patients, visit-to-visit SBP, PP, and sAlb changes were correlated to Re-OH changes (rs = 0.693, p < 0.001; rs = 0.643, p < 0.001; rs = -0.444, p = 0.008, respectively) but not to weight changes (rs = 0.052, p = 0.754; rs = 0.034, p = 0.838; rs = -0.156, p = 0.378, respectively). Visit-to-visit Re-OH changes, which were >+4% or <-4%, were linearly correlated to SBP (r = 0.858, p < 0.001), PP (r = 0.757, p < 0.001), and sAlb (r = -0.699, p = 0.002) changes. CONCLUSION In children on PD, longitudinal Re-OH changes are superior to weight changes in assessing volume-dependent variations of SBP, PP, and sAlb. Routine BIS application, rather than single BIS measurements, seems useful in the intra-patient monitoring of hydration status.
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Affiliation(s)
- Vasiliki Karava
- Pediatric Nephrology Unit, 1st Department of Pediatrics, 37782Aristotle University of Thessaloniki, Greece
| | - Stella Stabouli
- Pediatric Nephrology Unit, 1st Department of Pediatrics, 37782Aristotle University of Thessaloniki, Greece
| | - John Dotis
- Pediatric Nephrology Unit, 1st Department of Pediatrics, 37782Aristotle University of Thessaloniki, Greece
| | - Vassilios Liakopoulos
- Division of Nephrology and Hypertension, 1st Department of Internal Medicine, 37782Aristotle University of Thessaloniki, Greece
| | - Fotios Papachristou
- Pediatric Nephrology Unit, 1st Department of Pediatrics, 37782Aristotle University of Thessaloniki, Greece
| | - Nikoleta Printza
- Pediatric Nephrology Unit, 1st Department of Pediatrics, 37782Aristotle University of Thessaloniki, Greece
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Warady BA, Schaefer F, Bagga A, Cano F, McCulloch M, Yap HK, Shroff R. Prescribing peritoneal dialysis for high-quality care in children. Perit Dial Int 2020; 40:333-340. [DOI: 10.1177/0896860819893805] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Background: Peritoneal dialysis (PD) remains the most widely used modality for chronic dialysis in children, particularly in younger children and in lower and middle income countries (LMICs). We present guidelines for dialysis initiation, modality selection, small solute clearance, and fluid removal in children on PD. A review of the literature and key studies that support these statements are presented. Methods: An extensive Medline search for all publications on PD in children was performed using predefined search criteria. Results: High-quality randomized trials in children are scarce and current clinical practice largely relies on data extrapolated from adult studies or drawn from observational cohort studies in children. The evidence and strength of the recommendation is GRADE-ed, but in the absence of high-quality evidence, the opinion of the authors is provided and must be carefully considered by the treating physician, and adapted to local expertise and individual patient needs as appropriate. We discuss the timing of dialysis initiation, factors to be considered when selecting a dialysis modality, the assessment and management of volume status on PD, achieving optimal small solute clearance, and the importance of preserving residual kidney function. While optimal dialysis must remain the goal for every patient, a careful discussion with fully informed patients and caregivers is important to understand the patient and family’s expectations of dialysis and reasonable adjustments to the dialysis program may be considered in accordance with a philosophy of shared decision-making. Conclusions: There continues to be very poor evidence in the field of chronic PD in children and these recommendations can at best serve to guide clinical decision-making. In LMICs, every effort should be made to conform to the framework of these statements, taking into account resource limitations.
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Affiliation(s)
- Bradley A Warady
- Division of Pediatric Nephrology, Children’s Mercy, Kansas City, MO, USA
| | - Franz Schaefer
- Center for Pediatrics and Adolescent Medicine, Heidelberg, Germany
| | - Arvind Bagga
- Division of Pediatric Nephrology, All India Institute of Medical Sciences, New Delhi, India
| | - Francisco Cano
- Division of Pediatric Nephrology, Luis Calvo Mackenna Children’s Hospital, University of Chile, Santiago, Chile
| | - Mignon McCulloch
- School of Child and Adolescent Health, Red Cross Children’s Hospital, Cape Town, South Africa
| | - Hui-Kim Yap
- Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Rukshana Shroff
- Great Ormond Street Hospital for Children NHS Foundation Trust, University College London, Institute of Child Health, London, UK
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18
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Rees L. Assessment of dialysis adequacy: beyond urea kinetic measurements. Pediatr Nephrol 2019; 34:61-69. [PMID: 29582148 PMCID: PMC6244854 DOI: 10.1007/s00467-018-3914-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 02/05/2018] [Accepted: 02/06/2018] [Indexed: 12/18/2022]
Abstract
Adequacy of dialysis is a term that has been used for many years based on measurement of small solute clearance using urea and creatinine. This has been shown in some but not all studies in adults to correlate with survival. However, small solute clearance is just one minor part of the effectiveness of dialysis and in fact 'optimum' dialysis, rather than 'adequate' dialysis is what most paediatric nephrologists would want for their patients. Additional ways to assess the success of dialysis in children would include dialysis access complications and longevity, preservation of residual kidney function, body composition, biochemical and haematological control, nutrition and growth, discomfort during the dialysis process and psychosocial adjustment including hospitalisation and school attendance. These criteria need to be balanced against a dialysis programme that has the least possible adverse effects on quality of life.
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Affiliation(s)
- Lesley Rees
- Renal Office, Gt Ormond St Hospital for Children NHS Foundation Trust, WC1N 3JH, London, UK.
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19
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Abstract
Dysregulation of intravascular fluid leads to chronic volume overload in children with end-stage kidney disease (ESKD). Sequelae include left ventricular hypertrophy and remodeling and impaired cardiac function. As a result, cardiovascular complications are the commonest cause of mortality in the pediatric dialysis population. The clinical need to optimize intravascular volume in children with ESKD is clear; however, its assessment and management is the most challenging aspect of the pediatric dialysis prescription. Minimizing chronic fluid overload is a key priority; however, excessive ultrafiltration is toxic to the myocardium and can precipitate intradialytic symptoms. This review outlines emerging objective techniques to enhance the assessment of fluid overload in children on dialysis and outlines evidence for current management strategies to address this clinical problem.
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20
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Bioimpedance Spectroscopy Imprecisely Assesses Lean Body Mass in Pediatric Dialysis Patients. J Pediatr Gastroenterol Nutr 2018; 67:533-537. [PMID: 29916952 DOI: 10.1097/mpg.0000000000002063] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVES Alterations in body compositions are strongly associated with poor outcomes in end-stage renal disease patients. Hence, assessment of lean body mass is crucial for clinically monitoring these patients. The use of multifrequency bioimpedance spectroscopy measurements has also been advocated, but their usefulness in children is questioned. We investigated whether their application is appropriate for lean body mass measurement in pediatric patients receiving chronic dialysis. METHODS Lean body mass estimates as assessed by multifrequency bioimpedance spectroscopy and by deuterium dilution were obtained for 15 patients (mean age 10.9 ± 3.6 years). RESULTS Lean body mass (mean ± standard deviation) determined by bioimpedance was 24.2 ± 10.7 and 24.4 ± 10.3 kg by deuterium technique. Bland-Altman analysis showed a mean (±standard deviation) difference between the 2 methods of -0.25 ± 2.30 kg with 95% limits of agreement of -4.80 to 4.25 kg. In a multiple linear regression model, the hydration status was associated with measurement bias after adjusting for age, sex, weight, and body surface area. CONCLUSIONS Our results show a high level of agreement between measurements by bioimpedance and deuterium technique, but the limits of agreement were wide. These findings do not support the use of bioimpedance to individually assess lean body mass in pediatric dialysis patients with and without overhydration.
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21
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Shroff R, Bayazit A, Stefanidis CJ, Askiti V, Azukaitis K, Canpolat N, Agbas A, Anarat A, Aoun B, Bakkaloglu S, Bhowruth D, Borzych-Dużałka D, Bulut IK, Büscher R, Dempster C, Duzova A, Habbig S, Hayes W, Hegde S, Krid S, Licht C, Litwin M, Mayes M, Mir S, Nemec R, Obrycki L, Paglialonga F, Picca S, Ranchin B, Samaille C, Shenoy M, Sinha M, Smith C, Spasojevic B, Vidal E, Vondrák K, Yilmaz A, Zaloszyc A, Fischbach M, Schaefer F, Schmitt CP. Effect of haemodiafiltration vs conventional haemodialysis on growth and cardiovascular outcomes in children - the HDF, heart and height (3H) study. BMC Nephrol 2018; 19:199. [PMID: 30097064 PMCID: PMC6086045 DOI: 10.1186/s12882-018-0998-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 08/01/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Cardiovascular disease is prevalent in children on dialysis and accounts for almost 30% of all deaths. Randomised trials in adults suggest that haemodiafiltration (HDF) with high convection volumes is associated with reduced cardiovascular mortality compared to high-flux haemodialysis (HD); however paediatric data are scarce. We designed the haemodiafiltration, heart and height (3H) study to test the hypothesis that children on HDF have an improved cardiovascular risk profile, growth and nutritional status and quality of life, compared to those on conventional HD. We performed a non-randomised parallel-arm intervention study within the International Paediatric Haemodialysis Network Registry comparing children on HDF and conventional HD to determine annualised change in cardiovascular end-points and growth. Here we present the 3H study design and baseline characteristics of the study population. METHODS 190 children were screened and 177 (106 on HD and 71 on HDF) recruited from 28 centres in 10 countries. There was no difference in age, underlying diagnosis, comorbidities, previous dialysis therapy, dialysis vintage, residual renal function, type of vascular access or blood flow between HD and HDF groups. High flux dialysers were used in 63% of HD patients and ultra-pure water was available in 52%. HDF patients achieved a median convection volume of 13.3 L/m2; this was associated with the blood flow rate only ((p = 0.0004, r = 0.42) and independent of access type (p = 0.38). DISCUSSION This is the largest study on dialysis outcomes in children that involves deep phenotyping across a wide range of cardiovascular, anthropometric, nutritional and health-related quality of life measures, to test the hypothesis that HDF leads to improved cardiovascular and growth outcomes compared to conventional HD. TRIAL REGISTRATION ClinicalTrials.gov: NCT02063776 . The trial was prospectively registered on the 14 Feb 2014.
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Affiliation(s)
- Rukshana Shroff
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK.
| | | | | | | | | | | | - Ayse Agbas
- Cerrahpasa School of Medicine, Istanbul, Turkey
| | | | - Bilal Aoun
- Armand Trousseau Hospital, Paris, France
| | | | - Devina Bhowruth
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK
| | | | | | | | - Claire Dempster
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK
| | | | | | - Wesley Hayes
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK
| | | | | | | | | | - Mark Mayes
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, WC1N 3JH, UK
| | - Sevgi Mir
- Ege University Faculty of Medicine, Izmir, Turkey
| | - Rose Nemec
- Hospital for Sick Children, Toronto, Canada
| | | | - Fabio Paglialonga
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Stefano Picca
- Bambino Gesù' Children Research Hospital, IRCCS, Rome, Italy
| | - Bruno Ranchin
- Hôpital Femme Mère Enfant, Hospices Civils de Lyon, Bron, France
| | | | - Mohan Shenoy
- Royal Manchester Children's Hospital, Manchester, UK
| | | | | | | | - Enrico Vidal
- Pediatric Dialysis and Transplant Unit, Padova, Italy
| | | | - Alev Yilmaz
- Istanbul University Faculty of Medical, Istanbul, Turkey
| | | | | | - Franz Schaefer
- Center for Pediatrics and Adolescent Medicine, Heidelberg, Germany
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22
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Dasgupta I, Keane D, Lindley E, Shaheen I, Tyerman K, Schaefer F, Wühl E, Müller MJ, Bosy-Westphal A, Fors H, Dahlgren J, Chamney P, Wabel P, Moissl U. Validating the use of bioimpedance spectroscopy for assessment of fluid status in children. Pediatr Nephrol 2018; 33:1601-1607. [PMID: 29869117 PMCID: PMC6061658 DOI: 10.1007/s00467-018-3971-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 03/31/2018] [Accepted: 04/27/2018] [Indexed: 11/26/2022]
Abstract
BACKGROUND Bioimpedance spectroscopy (BIS) with a whole-body model to distinguish excess fluid from major body tissue hydration can provide objective assessment of fluid status. BIS is integrated into the Body Composition Monitor (BCM) and is validated in adults, but not children. This study aimed to (1) assess agreement between BCM-measured total body water (TBW) and a gold standard technique in healthy children, (2) compare TBW_BCM with TBW from Urea Kinetic Modelling (UKM) in haemodialysis children and (3) investigate systematic deviation from zero in measured excess fluid in healthy children across paediatric age range. METHODS TBW_BCM and excess fluid was determined from standard wrist-to-ankle BCM measurement. TBW_D2O was determined from deuterium concentration decline in serial urine samples over 5 days in healthy children. UKM was used to measure body water in children receiving haemodialysis. Agreement between methods was analysed using paired t test and Bland-Altman method comparison. RESULTS In 61 healthy children (6-14 years, 32 male), mean TBW_BCM and TBW_D2O were 21.1 ± 5.6 and 20.5 ± 5.8 L respectively. There was good agreement between TBW_BCM and TBW_D2O (R2 = 0.97). In six haemodialysis children (4-13 years, 4 male), 45 concomitant measurements over 8 months showed good TBW_BCM and TBW_UKM agreement (mean difference - 0.4 L, 2SD = ± 3.0 L). In 634 healthy children (2-17 years, 300 male), BCM-measured overhydration was - 0.1 ± 0.7 L (10-90th percentile - 0.8 to + 0.6 L). There was no correlation between age and OH (p = 0.28). CONCLUSIONS These results suggest BCM can be used in children as young as 2 years to measure normally hydrated weight and assess fluid status.
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Affiliation(s)
| | - David Keane
- Departments of Renal Medicine and Medical Physics, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Elizabeth Lindley
- Departments of Renal Medicine and Medical Physics, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Ihab Shaheen
- Department of Children's Nephrology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Kay Tyerman
- Department of Children's Nephrology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Franz Schaefer
- Pediatric Nephrology Division, Center for Pediatrics and Adolescent Medicine, University of Heidelberg, Heidelberg, Germany
| | - Elke Wühl
- Pediatric Nephrology Division, Center for Pediatrics and Adolescent Medicine, University of Heidelberg, Heidelberg, Germany
| | - Manfred J Müller
- Institute for Human Nutrition and Food Science, Christian-Albrecht University, Kiel, Germany
| | | | - Hans Fors
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Jovanna Dahlgren
- Department of Pediatrics, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Paul Chamney
- Global R&D, Fresenius Medical Care, Bad Homburg, Germany
| | - Peter Wabel
- Global R&D, Fresenius Medical Care, Bad Homburg, Germany
| | - Ulrich Moissl
- Global R&D, Fresenius Medical Care, Bad Homburg, Germany
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