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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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Nishino T, Takahashi K, Ochiai C, Tomori S, Ono S, Mimaki M. Association between serum albumin and body water using a bioelectrical impedance analyzer: a case report of longitudinal variation in a child with initial idiopathic nephrotic syndrome. AME Case Rep 2024; 8:62. [PMID: 39091551 PMCID: PMC11292089 DOI: 10.21037/acr-23-211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/31/2024] [Indexed: 08/04/2024]
Abstract
Background Bioelectrical impedance analysis (BIA) is a commonly used noninvasive technique for body composition assessment with recently expanded indications. This reproducible measurement method uses electrical conductivity to evaluate body composition, including fluid status. In pediatric idiopathic nephrotic syndrome (INS), albumin leaks into the urine, resulting in dysregulated colloid-osmotic pressure in the blood vessels. This results in decreased circulating blood volume and edema. Blood tests are a useful evaluation method; however, it cannot be performed frequently in children because of their invasive nature. Herein, we present a case of a child with INS demonstrating a longitudinal correlation between serum albumin (S-Alb) levels and extracellular water (ECW)/total body water (TBW) ratio. Case Description A 6-year-old boy was admitted to the hospital for INS treatment after informed consent was obtained. He presented with severe proteinuria symptoms and an increased weight of 3 kg before the onset of INS. Standard treatment with prednisolone (PSL) for 28 days was initiated, and his proteinuria resolved on day 7. During the acute course, albumin replacement was conducted thrice for fluid management purposes and did not cause severe intravascular dehydration. The fluid composition was assessed over time; each measurement lasted for approximately 10 minutes and was performed on the same day as the blood tests. Nine measurements were taken, and S-Alb levels and the ECW/TBW ratio (r=-0.72, P<0.04) exhibited a significant negative correlation. Conclusions BIA can potentially predict S-Alb levels objectively and noninvasively within a short period. Although further validation is needed, this measurement can reduce the invasiveness of testing in children with INS.
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Affiliation(s)
- Tomohiko Nishino
- Department of Pediatrics, Teikyo University School of Medicine, Tokyo, Japan
| | - Kazuhiro Takahashi
- Department of Pediatrics, Teikyo University School of Medicine, Tokyo, Japan
| | - Chiharu Ochiai
- Department of Nutrition, Teikyo University School of Medicine, Tokyo, Japan
| | - Shinya Tomori
- Department of Pediatrics, Teikyo University School of Medicine, Tokyo, Japan
| | - Sayaka Ono
- Department of Pediatrics, Teikyo University School of Medicine, Tokyo, Japan
| | - Masakazu Mimaki
- Department of Pediatrics, Teikyo University School of Medicine, Tokyo, Japan
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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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Betti C, Busi I, Cortesi C, Anselmi L, Mendoza-Sagaon M, Simonetti GD. Fluids and body composition during anesthesia in children and adolescents: A pilot study. Eur J Pediatr 2024; 183:2251-2256. [PMID: 38407589 PMCID: PMC11035464 DOI: 10.1007/s00431-024-05490-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/15/2024] [Accepted: 02/18/2024] [Indexed: 02/27/2024]
Abstract
The purpose of this study is to evaluate the intracellular and extracellular volume before and after anesthesia in order to ascertain their variations and determine the potential utility of this information in optimizing intraoperative fluid administration practices. A bioimpedance spectroscopy device (body composition monitor, BCM) was used to measure total body fluid volume, extracellular volume, and intracellular volume. BCM measurements were performed before and after general anesthesia in unselected healthy children and adolescents visiting the Pediatric Institute of Southern Switzerland for low-risk surgical procedures hydrated with an isotonic solution. In 100 children and adolescents aged 7.0 (4.8-11) years (median and interquartile range), the average total body water increased perioperatively with a delta value of 182 (0-383) mL/m2 from pre- to postoperatively, as well as the extracellular water content, which had a similar increase with a delta value of 169 (19-307) mL/m2. The changes in total body water and extracellular water content significantly correlated with the amount of fluids administered. The intracellular water content did not significantly change. Conclusion: Intraoperative administration of isotonic solutions results in a significant fluid accumulation in low-risk schoolchildren during general anesthesia. The results suggest that children without major health problems undergoing short procedures do not need any perioperative intravenous fluid therapy, because they are allowed to take clear fluids up to 1 h prior anesthesia. In future studies, the use of BCM measurements has the potential to be valuable in guiding intraoperative fluid therapy. What is Known: • Most children who undergo common surgical interventions or investigations requiring anesthesia are nowadays hydrated at a rate of 1700 mL/m2/day with an isotonic solution. • The use bioimpedance spectroscopy for the assessment of fluid status in healthy children has already been successfully validated. • The bioimpedance spectroscopy is already currently widely used in various nephrological settings to calculate fluid overload and determine patient's optimal fluid status. What is New: • Routine intraoperative fluid administration results in a significant fluid accumulation during general anesthesia in low-risk surgical procedures. • This observation might be relevant for children and adolescents with conditions predisposing to fluid retention. • In future studies, the use of BCM measurements has the potential to be valuable in guiding intraoperative fluid therapy.
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Affiliation(s)
- Céline Betti
- Pediatric Institute of Southern Switzerland, Ospedale San Giovanni, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Ilaria Busi
- Pediatric Institute of Southern Switzerland, Ospedale San Giovanni, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Cinzia Cortesi
- Pediatric Institute of Southern Switzerland, Ospedale San Giovanni, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Luciano Anselmi
- Pediatric Institute of Southern Switzerland, Ospedale San Giovanni, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Mario Mendoza-Sagaon
- Pediatric Institute of Southern Switzerland, Ospedale San Giovanni, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Giacomo D Simonetti
- Pediatric Institute of Southern Switzerland, Ospedale San Giovanni, Ente Ospedaliero Cantonale, Bellinzona, Switzerland.
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland.
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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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Khin EE, Elmaghrabi AY, Alvarado LA, Modem V, Quigley R. Fluid balance assessment in pediatric hemodialysis patients by using whole-body bioimpedance spectroscopy (WB-BIS). Pediatr Nephrol 2022; 37:2449-2456. [PMID: 35166921 DOI: 10.1007/s00467-022-05469-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 01/14/2022] [Accepted: 01/14/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Fluid overload is a major factor in morbidity and mortality in dialysis patients. Whole-body bioimpedance spectroscopy (WB-BIS) is a noninvasive method for assessing fluid status. We hypothesized that fluid status measurement of changes in total body water (TBW), extracellular fluid (ECF), and intracellular fluid (ICF) by WB-BIS would correlate with the weight (Wt) changes before and after hemodialysis (HD) and the amount of ultrafiltration (UF) in pediatric HD patients. We also examined the relationship between the ECF percent of total body water (ECF%) and ECF/ICF ratio with the pre-HD systolic blood pressure percentile (SBP%ile). METHODS WB-BIS measurements were made both before and after HD on three separate occasions in each patient. Pre- and post-HD Wt, BP, and UF volumes were collected on the day of BIS measurement. RESULTS At total of 96 measurements were obtained from 16 HD patients. There were 6 females (mean age: 13.2 ± 4.5 yrs). UF correlated with changes in weight, TBW and ECF (p < 0.001) but not with ICF changes (p = 0.345). Pre-HD SBP%ile correlated with ECF%. CONCLUSIONS Our findings suggest that WB-BIS can be used to monitor the fluid status in pediatric HD patients. The fluid that is removed from the patient during the HD treatment primarily comes from the ECF and not the ICF. Mobilization of fluid from the ICF appears to be delayed. Patients with significantly higher pre-HD ECF% and ECF/ICF ratio had higher pre-HD systolic BP. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Ei E Khin
- Children's Medical Center, Dallas, TX, USA
- UT-Southwestern Medical Center, Dallas, TX, 75390, USA
- Texas Tech University Health Science Center El Paso, El Paso, TX, USA
| | - Ayah Y Elmaghrabi
- Children's Medical Center, Dallas, TX, USA
- UT-Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Luis A Alvarado
- Texas Tech University Health Science Center El Paso, El Paso, TX, USA
| | - Vinai Modem
- Cook's Children's Hospital, Fort Worth, TX, USA
| | - Raymond Quigley
- Children's Medical Center, Dallas, TX, USA.
- UT-Southwestern Medical Center, Dallas, TX, 75390, USA.
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Muhmann D, Droste M, Schulz J, Linge F, Ladewig L, Eisenberg U, Röder S, Büscher R. Schoolchildren from disadvantaged backgrounds present a loss of lean tissue mass and significant increase of body fat mass during the COVID-19 lockdown in Germany: results from the MEDdirect study. World J Pediatr 2022; 18:363-367. [PMID: 35322341 PMCID: PMC8942149 DOI: 10.1007/s12519-022-00541-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 03/03/2022] [Indexed: 12/05/2022]
Affiliation(s)
- David Muhmann
- University Hospital Essen, Pediatrics II, Hufelandstr. 55, 45147 Essen, Germany
| | - Marvin Droste
- University Hospital Essen, Pediatrics II, Hufelandstr. 55, 45147 Essen, Germany
| | - Jörn Schulz
- Be Strong for Kids E.V, Sundernholz 108, 45134 Essen, Germany
| | - Frederike Linge
- Schule Am Steeler Tor, Engelbertstr. 4, 45127 Essen, Germany
| | - Lea Ladewig
- Schule Am Steeler Tor, Engelbertstr. 4, 45127 Essen, Germany
| | | | - Susanne Röder
- Schule Am Steeler Tor, Engelbertstr. 4, 45127 Essen, Germany
| | - Rainer Büscher
- University Hospital Essen, Pediatrics II, Hufelandstr. 55, 45147, Essen, Germany.
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