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Angeloni NA, Outi I, Alvarez MA, Sterman S, Fernandez Morales J, Masevicius FD. Plasma sodium during the recovery of renal function in critically ill adult patients: Multicenter prospective cohort study. J Crit Care 2024; 81:154544. [PMID: 38402748 DOI: 10.1016/j.jcrc.2024.154544] [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: 11/01/2023] [Revised: 01/24/2024] [Accepted: 02/15/2024] [Indexed: 02/27/2024]
Abstract
BACKGROUND Sodium increases during acute kidney injury (AKI) recovery. Both hypernatremia and positive fluid balances are associated with increased mortality. We aimed to evaluate the association between daily fluid balance and daily plasma sodium during the recovery from AKI among critical patients. METHODS Adult patients with AKI were enrolled in four ICUs and followed up for four days or until ICU discharge or hemodialysis initiation. Day zero was the peak day of creatinine. The primary outcome was daily plasma sodium; the main exposure was daily fluid balance. RESULTS 93 patients were included. The median age was 66 years; 68% were male. Plasma sodium increased in 79 patients (85%), and 52% presented hypernatremia. We found no effect of daily fluid balance on plasma sodium (β -0.26, IC95%: -0.63-0.13; p = 0.19). A higher total sodium variation was observed in patients with lower initial plasma sodium (β -0.40, IC95%: -0.53 to -0.27; p < 0.01), higher initial urea (β 0.07, IC95%: 0.04-0.01; p < 0.01), and higher net sodium balance (β 0.002, IC95%: 0.0001-0.01; p = 0.05). CONCLUSIONS The increase in plasma sodium is common during AKI recovery and can only partially be attributed to the water and electrolyte balances. The incidence of hypernatremia in this population of patients is higher than in the general critically ill patient population.
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Affiliation(s)
- Natalia Alejandra Angeloni
- Unidad de Terapia Intensiva, Sanatorio Anchorena de San Martin, Perdriel 4189, Villa Lynch, Provincia de Buenos Aires, Argentina; Unidad de Cuidados Intensivos, Hospital General de Agudos Juan A. Fernandez, Av. Cerviño 3356, C1425AGP Ciudad Autónoma de Buenos Aires, Argentina; Sanatorio La Trinidad de Ramos Mejía, Av. Rivadavia 13280, Ramos Mejía, Provincia de Buenos Aires, Argentina.
| | - Irene Outi
- Unidad de Terapia Intensiva, Sanatorio Anchorena de San Martin, Perdriel 4189, Villa Lynch, Provincia de Buenos Aires, Argentina
| | - Monica Alejandra Alvarez
- Unidad de Terapia Intensiva, Sanatorio Anchorena de San Martin, Perdriel 4189, Villa Lynch, Provincia de Buenos Aires, Argentina
| | - Sofia Sterman
- Unidad de Cuidados Intensivos, Hospital General de Agudos Juan A. Fernandez, Av. Cerviño 3356, C1425AGP Ciudad Autónoma de Buenos Aires, Argentina
| | - Julio Fernandez Morales
- Sanatorio Otamendi y Miroli, Azcuénaga 870, C1115AAB Ciudad Autónoma de Buenos Aires, Argentina
| | - Fabio Daniel Masevicius
- Sanatorio La Trinidad de Ramos Mejía, Av. Rivadavia 13280, Ramos Mejía, Provincia de Buenos Aires, Argentina; Sanatorio Otamendi y Miroli, Azcuénaga 870, C1115AAB Ciudad Autónoma de Buenos Aires, Argentina
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2
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Wang X, Li X, Sun J, Wang M, Lang W, Xu X. Relationship between sodium level and in-hospital mortality in traumatic brain injury patients of MIMIC IV database. Front Neurol 2024; 15:1349710. [PMID: 38562424 PMCID: PMC10982354 DOI: 10.3389/fneur.2024.1349710] [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: 12/05/2023] [Accepted: 03/08/2024] [Indexed: 04/04/2024] Open
Abstract
Background An association between prognosis and high sodium levels in Traumatic Brain Injury (TBI) patients in Intensive Care Units (ICUs) has been noted, but limited research exists on the ideal sodium level in these patients or the impact on early mortality, using the MIMIC-IV database. Methods A retrospective survey was conducted on TBI patients from the MIMIC-IV database. Patients were divided into two categories based on their highest serum sodium level within 24 h of admission exceeding 145 mmol/L: those with hypernatremia, and those with moderate-to-low sodium levels. Collected covariates encompasses demographic, clinical, laboratory, and intervention variables. A multivariate logistic regression model was implemented to forecast in-hospital mortality. Results The study included 1749 TBI patients, with 209 (11.5%) experiencing in-hospital deaths. A non-linear test exposed an L-shaped correlation between sodium level and in-hospital mortality, with mortality rates increasing after a turning point at 144.1 mmol/L. Compared to the moderate-to-low group's 9.3% mortality rate, the hypernatremia group had a significantly higher mortality rate of 25.3% (crude odds ratio = 3.32, 95% confidence interval: 2.37 ~ 4.64, p < 0.001). After adjusting for all covariates, the hypernatremia group continued to show a significant correlation with higher mortality risk (adjusted odds ratio = 2.19, 95% confidence interval: 1.38 ~ 3.47, p = 0.001). This trend remained consistent regardless of the analyses stratification. Conclusion The study reveals an L-shaped relationship between sodium levels and in-hospital deaths, with a pivotal point at 144.1 mmol/L. TBI patients displaying hypernatremia were independently linked to higher in-hospital mortality, underlining the need for further studies into targeted management of sodium levels in these patients.
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Affiliation(s)
- Xiaoliang Wang
- Neurology Department of Qingdao Municipal Hospital, Nanjing Medical University, Qingdao, Shandong Province, China
| | - Xin Li
- Neurology Department of Qingdao Municipal Hospital, Nanjing Medical University, Qingdao, Shandong Province, China
| | - Jiahao Sun
- Neurology Department of Qingdao Municipal Hospital, Nanjing Medical University, Qingdao, Shandong Province, China
| | - Mengmeng Wang
- Neurology Department of Qingdao Municipal Hospital, Nanjing Medical University, Qingdao, Shandong Province, China
| | - Wenjuan Lang
- Neurology Department of Qingdao Municipal Hospital, Nanjing Medical University, Qingdao, Shandong Province, China
| | - Xin Xu
- Neurology Department of Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
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Sugiyama J, Ryuge A, Mitsubayashi K, Ito M, Matsumoto N, Takeuchi R, Azuma K, Hachiya A, Asano M, Nakamura T. Dapagliflozin induced hypernatremia via osmotic diuresis: a case report. CEN Case Rep 2024; 13:9-13. [PMID: 37074627 PMCID: PMC10834893 DOI: 10.1007/s13730-023-00790-x] [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: 01/27/2023] [Accepted: 04/09/2023] [Indexed: 04/20/2023] Open
Abstract
Sodium-glucose cotransporter 2 (SGLT2) inhibitors have been widely used. They inhibit proximal tubular glucose reabsorption, resulting in glycosuria. Herein, we report the case of a 65-year-old woman who presented with hypernatremia during the perioperative period of a subarachnoid hemorrhage. The patient continued to take dapagliflozin postoperatively and subsequently developed severe hypernatremia. Based on the urinalysis findings, we diagnosed osmotic diuresis due to glycosuria as contributing to hypernatremia. Hypernatremia improved with the discontinuation of dapagliflozin and the administration of a hypotonic infusion. In the perioperative period, physicians should discontinue SGLT2 inhibitors owing to concerns about the development of hypernatremia.
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Affiliation(s)
- Juri Sugiyama
- Department of Nephrology, National Hospital Organization Nagoya Medical Center, 1-1 Sannomaru, Naka-Ku, Nagoya, Aichi, 460-0001, Japan
| | - Akihiro Ryuge
- Department of Nephrology, National Hospital Organization Nagoya Medical Center, 1-1 Sannomaru, Naka-Ku, Nagoya, Aichi, 460-0001, Japan.
| | - Kenta Mitsubayashi
- Department of Nephrology, National Hospital Organization Nagoya Medical Center, 1-1 Sannomaru, Naka-Ku, Nagoya, Aichi, 460-0001, Japan
| | - Masashi Ito
- Department of Neurosurgery, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Naoki Matsumoto
- Department of Nephrology, National Hospital Organization Nagoya Medical Center, 1-1 Sannomaru, Naka-Ku, Nagoya, Aichi, 460-0001, Japan
| | - Riku Takeuchi
- Department of Nephrology, National Hospital Organization Nagoya Medical Center, 1-1 Sannomaru, Naka-Ku, Nagoya, Aichi, 460-0001, Japan
| | - Kiho Azuma
- Department of Nephrology, National Hospital Organization Nagoya Medical Center, 1-1 Sannomaru, Naka-Ku, Nagoya, Aichi, 460-0001, Japan
| | - Asaka Hachiya
- Department of Nephrology, National Hospital Organization Nagoya Medical Center, 1-1 Sannomaru, Naka-Ku, Nagoya, Aichi, 460-0001, Japan
| | - Marina Asano
- Department of Nephrology, National Hospital Organization Nagoya Medical Center, 1-1 Sannomaru, Naka-Ku, Nagoya, Aichi, 460-0001, Japan
| | - Tomonobu Nakamura
- Department of Nephrology, National Hospital Organization Nagoya Medical Center, 1-1 Sannomaru, Naka-Ku, Nagoya, Aichi, 460-0001, Japan
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4
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Ryuge A, Nagamine S, Saito M, Matsumoto N, Asano M. Hypernatremic chloride-depletion metabolic alkalosis successfully treated with high cation-gap amino acids: a case report. CEN Case Rep 2023:10.1007/s13730-023-00837-z. [PMID: 37991678 DOI: 10.1007/s13730-023-00837-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/29/2023] [Indexed: 11/23/2023] Open
Abstract
Normal saline (NS) is recommended for the treatment of chloride-depletion alkalosis (CDA). However, its use in patients with drinking water restrictions or fluid volume deficiencies may lead to hypernatremia. We report the case of a 42-year-old Japanese man with ileus due to sigmoidal volvulus, who presented with CDA. After endoscopic decompression, NS was administered to treat the CDA. Despite the administration of NS, CDA persisted and hypernatremia developed. The infusion was then changed to high cation-gap amino acids (HCG-AA), which improved both metabolic alkalosis and hypernatremia. Thus, HCG-AA may be useful for the treatment of hypernatremia in patients with CDA.
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Affiliation(s)
- Akihiro Ryuge
- Department of Nephrology, National Hospital Organization Nagoya Medical Center, 1-1 Sannomaru, Naka-ku, Nagoya, Aichi, 460-0001, Japan.
| | - Shogo Nagamine
- Department of Nephrology, National Hospital Organization Nagoya Medical Center, 1-1 Sannomaru, Naka-ku, Nagoya, Aichi, 460-0001, Japan
| | - Masashi Saito
- Department of Gastroenterology, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Naoki Matsumoto
- Department of Nephrology, National Hospital Organization Nagoya Medical Center, 1-1 Sannomaru, Naka-ku, Nagoya, Aichi, 460-0001, Japan
| | - Marina Asano
- Department of Nephrology, National Hospital Organization Nagoya Medical Center, 1-1 Sannomaru, Naka-ku, Nagoya, Aichi, 460-0001, Japan
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Collins K, Huen SC. Metabolism and Nutrition in Sepsis: In Need of a Paradigm Shift. Nephron Clin Pract 2023; 147:733-736. [PMID: 37703850 PMCID: PMC11098033 DOI: 10.1159/000534074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 08/14/2023] [Indexed: 09/15/2023] Open
Abstract
BACKGROUND Sepsis continues to cause significant morbidity and mortality despite technological advancements in medical management. While sepsis is defined as organ dysfunction owing to the dysregulated host response to infection, our understanding of the dysregulation of the host response remains incomplete. SUMMARY Many metabolic derangements that occur during sepsis, including those associated with anorexia, hyperglycemia, and proteolysis, have largely been considered maladaptive. Supportive medical and nutritional interventions targeted at correcting these metabolic derangements have not led to improved outcomes, suggesting a reappraisal of our approach to metabolism and nutrition in critically ill septic patients is needed. KEY MESSAGES Explanations of the lack of efficacy of these clinical interventions may include targeting the wrong metric or patient population, or the possibility that some of these metabolic changes could be protective. In this mini-review, we propose a paradigm shift that is needed in metabolism and nutrition management in sepsis.
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Affiliation(s)
- Kristina Collins
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Sarah C. Huen
- Departments of Internal Medicine-Nephrology and Pharmacology, The University of Texas Southwestern Medical Center, Dallas, TX, USA
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6
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Monnerat S, Atila C, Baur F, Santos de Jesus J, Refardt J, Dickenmann M, Christ-Crain M. Effect of protein supplementation on plasma sodium levels in the syndrome of inappropriate antidiuresis: a monocentric, open-label, proof-of-concept study-the TREASURE study. Eur J Endocrinol 2023; 189:252-261. [PMID: 37540987 DOI: 10.1093/ejendo/lvad108] [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: 06/07/2023] [Revised: 07/07/2023] [Accepted: 07/12/2023] [Indexed: 08/06/2023]
Abstract
IMPORTANCE The syndrome of inappropriate antidiuresis (SIAD) can be treated with oral urea; however, compliance is impaired by its poor palatability. OBJECTIVE To investigate whether dietary proteins could increase plasma sodium levels through urea-induced osmotic diuresis. DESIGN An open-label, proof-of-concept trial. SETTING University Hospital of Basel, Switzerland, between October 2021 and February 2023. PARTICIPANTS Outpatients with chronic SIAD. INTERVENTIONS OR EXPOSURES Ninety grams of protein daily for 7 days in the form of protein powder, followed by 30 g of oral urea daily for 7 days after a wash-out period of ≥1 week. MAIN OUTCOMES AND MEASURES The increase in sodium levels from baseline to the end of the 7-day protein supplementation. RESULTS Seventeen patients were included. After 7 days of 90 g daily protein supplementation (n = 17), plasma sodium levels increased from 131 (129-133) to 133 (132-137), that is, by a median of 3 mmol L-1 (0-5) (P = .01). Plasma urea levels increased by 3 mmol L-1 (1.7-4.9) (P < .01), and urine urea to creatinine ratio increased by 21.2 mmol mmol-1 (6.2-29.1) (P < .01). After 7 days of 30 g oral urea (n = 10), plasma sodium levels increased from 132 (130-133) to 134 (131-136), that is, by a median of 2 mmol L-1 (1-3) (P = .06). Plasma urea levels increased by 5.8 mmol L-1 (2.7-9.2) (P < .01), and urine urea to creatinine ratio increased by 31.0 mmol mmol-1 (18.7-45.1) (P < .01). CONCLUSIONS AND RELEVANCE Our findings suggest that protein powder increases plasma sodium levels in patients with chronic SIAD through protein-induced ureagenesis and osmotic diuresis. The effects are comparable with oral urea.
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Affiliation(s)
- Sophie Monnerat
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Cihan Atila
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Fabienne Baur
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Joyce Santos de Jesus
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
| | - Julie Refardt
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
| | - Michael Dickenmann
- Clinic for Transplantation Immunology and Nephrology, University Hospital Basel, Basel, Switzerland
| | - Mirjam Christ-Crain
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
- Department of Clinical Research, University of Basel, Basel, Switzerland
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7
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Cappola AR, Auchus RJ, El-Hajj Fuleihan G, Handelsman DJ, Kalyani RR, McClung M, Stuenkel CA, Thorner MO, Verbalis JG. Hormones and Aging: An Endocrine Society Scientific Statement. J Clin Endocrinol Metab 2023; 108:1835-1874. [PMID: 37326526 DOI: 10.1210/clinem/dgad225] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Indexed: 06/17/2023]
Abstract
Multiple changes occur across various endocrine systems as an individual ages. The understanding of the factors that cause age-related changes and how they should be managed clinically is evolving. This statement reviews the current state of research in the growth hormone, adrenal, ovarian, testicular, and thyroid axes, as well as in osteoporosis, vitamin D deficiency, type 2 diabetes, and water metabolism, with a specific focus on older individuals. Each section describes the natural history and observational data in older individuals, available therapies, clinical trial data on efficacy and safety in older individuals, key points, and scientific gaps. The goal of this statement is to inform future research that refines prevention and treatment strategies in age-associated endocrine conditions, with the goal of improving the health of older individuals.
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Affiliation(s)
- Anne R Cappola
- Division of Endocrinology, Diabetes, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Richard J Auchus
- Departments of Pharmacology and Internal Medicine, Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI 48109, USA
- Endocrinology and Metabolism Section, Medical Service, LTC Charles S. Kettles Veteran Affairs Medical Center, Ann Arbor, MI 48015, USA
| | - Ghada El-Hajj Fuleihan
- Calcium Metabolism and Osteoporosis Program, WHO Collaborating Center for Metabolic Bone Disorders, Division of Endocrinology, Department of Internal Medicine, American University of Beirut, Beirut 1107-2020, Lebanon
| | - David J Handelsman
- ANZAC Research Institute, University of Sydney and Andrology Department, Concord Repatriation General Hospital, Sydney 2139, Australia
| | - Rita R Kalyani
- Division of Endocrinology, Diabetes, and Metabolism, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Michael McClung
- Oregon Osteoporosis Center, Portland, OR 97213, USA
- Mary MacKillop Institute for Health Research, Australian Catholic University, Melbourne, VIC 3000, Australia
| | - Cynthia A Stuenkel
- Department of Medicine, University of California, San Diego, School of Medicine, La Jolla, CA 92093, USA
| | - Michael O Thorner
- Division of Endocrinology and Metabolism, University of Virginia, Charlottesville, VA 22903, USA
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Joseph G Verbalis
- Division of Endocrinology and Metabolism, Georgetown University Medical Center, Washington, DC 20057, USA
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8
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Cowen LE, Hodak SP, Verbalis JG. Age-Associated Abnormalities of Water Homeostasis. Endocrinol Metab Clin North Am 2023; 52:277-293. [PMID: 36948780 DOI: 10.1016/j.ecl.2022.11.002] [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] [Indexed: 02/21/2023]
Abstract
Deficits in renal function, thirst, and responses to osmotic and volume stimulation have been repeatedly demonstrated in older populations. The lessons learned over the past six decades serve to emphasize the fragile nature of water balance characteristic of aging. Older individuals are at increased risk for disturbances of water homeostasis due to both intrinsic disease and iatrogenic causes. These disturbances have real-life clinical implications in terms of neurocognitive effects, falls, hospital readmission and need for long-term care, incidence of bone fracture, osteoporosis, and mortality.
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Affiliation(s)
- Laura E Cowen
- Division of Endocrinology and Metabolism, Georgetown University Medical Center, Washington, DC 20007, USA
| | - Steven P Hodak
- Division of Endocrinology and Metabolism, New York University, New York, NY 10016, USA
| | - Joseph G Verbalis
- Division of Endocrinology and Metabolism, Georgetown University Medical Center, Washington, DC 20007, USA.
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9
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Tobin TW, Thurlow JS, Yuan CM. A Healthy Active Duty Soldier with an Elevated Serum Creatinine. Mil Med 2023; 188:e866-e869. [PMID: 33940616 DOI: 10.1093/milmed/usab163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/08/2021] [Accepted: 04/14/2021] [Indexed: 11/13/2022] Open
Abstract
Creatine products and sports supplements are widely used by active duty soldiers. These products are associated with both acute renal failure and elevated serum creatinine levels without renal injury. We present a case involving an active duty, 26-year-old Caucasian soldier who was evaluated in our clinic for elevated creatinine levels. This patient had no active medical problems and was noted on repeat labs to have significantly elevated creatinine levels. Subsequent investigations led us to conclude these values were not associated with renal injury and were due to ingested supplements.
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Affiliation(s)
- Trevor W Tobin
- Nephrology Service, Department of Medicine, Walter Reed National Military Medical Center, Bethesda, MD 20814, USA
| | - John S Thurlow
- Nephrology Service, Department of Medicine, Walter Reed National Military Medical Center, Bethesda, MD 20814, USA
| | - Christina M Yuan
- Nephrology Service, Department of Medicine, Walter Reed National Military Medical Center, Bethesda, MD 20814, USA
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10
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Patel N, Patel D, Farouk SS, Rein JL. Salt and Water: A Review of Hypernatremia. ADVANCES IN KIDNEY DISEASE AND HEALTH 2023; 30:102-109. [PMID: 36868726 DOI: 10.1053/j.akdh.2022.12.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 12/16/2022] [Accepted: 12/21/2022] [Indexed: 03/05/2023]
Abstract
Serum sodium disorders are generally a marker of water balance in the body. Thus, hypernatremia is most often caused by an overall deficit of total body water. Other unique circumstances may lead to excess salt, without an impact on the body's total water volume. Hypernatremia is commonly acquired in both the hospital and community. As hypernatremia is associated with increased morbidity and mortality, treatment should be initiated promptly. In this review, we will discuss the pathophysiology and management of the main types of hypernatremia, which can be categorized as either a loss of water or gain of sodium that can be mediated by renal or extrarenal mechanisms.
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Affiliation(s)
- Niralee Patel
- Division of Nephrology and Hypertension, Department of Medicine, University of Cincinnati, Cincinnati, OH
| | - Dhwanil Patel
- Division of Nephrology, Overlook Medical Center, Summit, NJ
| | - Samira S Farouk
- Barbara T. Murphy Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Joshua L Rein
- Barbara T. Murphy Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY.
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11
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Catabolism highly influences ICU-acquired hypernatremia in a mainly trauma and surgical cohort. J Crit Care 2023; 76:154282. [PMID: 36857855 DOI: 10.1016/j.jcrc.2023.154282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 01/30/2023] [Accepted: 02/20/2023] [Indexed: 03/02/2023]
Abstract
PURPOSE To further analyse causes and effects of ICU-acquired hypernatremia. METHODS This retrospective, single-centre study, analysed 994 patients regarding ICU-acquired hypernatremia. Non-hypernatremic patients (n = 617) were compared to early-hypernatremic (only before ICU-day 4; n = 87), prolonged-hypernatremic (before and after ICU-day 4; n = 169) and late-hypernatremic patients (only after ICU-day 4; n = 121). Trends in glomerular filtration rate (eGFR), urea-to-creatinine ratio (UCR), fraction of urea in total urine osmolality and urine sodium were compared. Risk factors for i) the development of hypernatremia and ii) mortality were determined. RESULTS Thirty-eight percent (n = 377) developed ICU-acquired hypernatremia. Specifically in the prolonged- and late-group, decreased eGFRs and urine sodium but increased UCR and fractions of urea in urine osmolality were present. Decreased eGFR was a risk factor for the development of hypernatremia in all groups; disease severity and increased catabolism particularly in the prolonged- and late-hypernatremic group. Increased age, SAPS-III and signs of catabolism but not the development of hypernatremia itself was identified as significant risk factor for mortality. CONCLUSIONS Late- and prolonged-hypernatremia is highly related to an increased protein metabolism. Besides excessive catabolism, initial disease severity and a decrease in renal function must be considered when confronted with ICU-acquired hypernatremia.
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12
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Yun G, Baek SH, Kim S. Evaluation and management of hypernatremia in adults: clinical perspectives. Korean J Intern Med 2022; 38:290-302. [PMID: 36578134 PMCID: PMC10175862 DOI: 10.3904/kjim.2022.346] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 11/29/2022] [Indexed: 12/30/2022] Open
Abstract
Hypernatremia is an occasionally encountered electrolyte disorder, which may lead to fatal consequences under improper management. Hypernatremia is a disorder of the homeostatic status regarding body water and sodium contents. This imbalance is the basis for the diagnostic approach to hypernatremia. We summarize the eight diagnostic steps of the traditional approach and introduce new biomarkers: exclude pseudohypernatremia, confirm glucose-corrected sodium concentrations, determine the extracellular volume status, measure urine sodium levels, measure urine volume and osmolality, check ongoing urinary electrolyte free water clearance, determine arginine vasopressin/copeptin levels, and assess other electrolyte disorders. Moreover, we suggest six steps to manage hypernatremia by replacing water deficits, ongoing water losses, and insensible water losses: identify underlying causes, distinguish between acute and chronic hypernatremia, determine the amount and rate of water administration, select the type of replacement solution, adjust the treatment schedule, and consider additional therapy for diabetes insipidus. Physicians may apply some of these steps to all patients with hypernatremia, and can also adapt the regimens for specific causes or situations.
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Affiliation(s)
- Giae Yun
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Seon Ha Baek
- Department of Internal Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Korea
| | - Sejoong Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Internal Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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13
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Shrestha AB, Sapkota UH, Shrestha S, Aryal M, Chand S, Thapa S, Chowdhury F, Salman A, Shrestha S, Shah S, Jaiswal V. Association of hypernatremia with outcomes of COVID-19 patients: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2022; 101:e32535. [PMID: 36595846 PMCID: PMC9794240 DOI: 10.1097/md.0000000000032535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND This systematic review and meta-analysis aimed to assess the association of hypernatremia with the outcomes of COVID-19 patients. METHODS We performed a systematic literature search on PubMed, Google Scholar, and Science Direct until October 2021 and found a total of 131 papers. With meticulous screening finally, 17 papers met the inclusion criteria. COVID-19 patients with sodium levels greater than the reference level were the study population and the outcome of interest was the poor outcome; such as mortality, mechanical ventilation, intensive care unit (ICU) admission, and prolonged hospital stay. The pooled estimate was calculated as the odds ratio (OR). RESULTS There were 19,032 patients with hypernatremia in the 17 studies included. An overall random effect meta-analysis showed that hypernatremia was associated with mortality (OR: 3.18 [1.61, 6.28], P < .0001, I2 = 91.99%), prolong hospitalization (OR: 1.97 [1.37, 2.83], P < .001, I2 = 0.00%) and Ventilation (OR: 5.40 [1.89, 15.42], P < .001, I2 = 77.35%), ICU admission (OR: 3.99 [0.89, 17.78], P = .07, I2 = 86.79%). Meta-regression analysis showed the association of age with the ICU outcome of hypernatremia patients. Whereas, other parameters like male, hypertension, chronic kidney disease, and diabetes mellitus did not significantly influence the odds ratio. CONCLUSION Hypernatremia was markedly associated with poor outcomes in patients with COVID-19. Hence, a blood ionogram is warranted and special attention must be given to hypernatremia COVID-19 patients.
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Affiliation(s)
- Abhigan Babu Shrestha
- M Abdur Rahim Medical College, Dinajpur, Bangladesh
- * Correspondence: Abhigan Babu Shrestha, M Abdur Rahim Medical College, Dinajpur, Bangladesh (e-mail: )
| | | | | | - Manjil Aryal
- M Abdur Rahim Medical College, Dinajpur, Bangladesh
| | | | - Sangharsha Thapa
- Department of Neurology, Jacobs School of Biomedical Sciences, University of Buffalo, Buffalo
| | | | | | - Shumneva Shrestha
- Maharajgunj Medical Campus, Institute of Medicine, Tribhuvan University, Kathmandu, Nepal
| | - Sangam Shah
- Maharajgunj Medical Campus, Institute of Medicine, Tribhuvan University, Kathmandu, Nepal
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14
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Nakatsukasa T, Ishizu T, Ouchi M, Murakoshi N, Sato K, Yamamoto M, Kawanishi K, Seo Y, Ieda M. Sodium Glucose Co-Transporter 2 Inhibitors Improve Renal Congestion and Left Ventricular Fibrosis in Rats With Hypertensive Heart Failure. Circ J 2022; 86:2029-2039. [PMID: 35944977 DOI: 10.1253/circj.cj-22-0105] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Elevated central venous pressure (CVP) in heart failure causes renal congestion, which deteriorates prognosis. Sodium glucose co-transporter 2 inhibitor (SGLT2-i) improves kidney function and heart failure prognosis; however, it is unknown whether they affect renal congestion. This study investigated the effect of SGLT2-i on the kidney and left ventricle using model rats with hypertensive heart failure.Methods and Results: Eight rats were fed a 0.3% low-salt diet (n=7), and 24 rats were fed an 8% high-salt diet, and they were divided into 3 groups of untreated (n=6), SGLT2-i (canagliflozin; n=6), and loop diuretic (furosemide; n=5) groups after 11 weeks of age. At 18 weeks of age, CVP and renal intramedullary pressure (RMP) were monitored directly by catheterization. We performed contrast-enhanced ultrasonography to evaluate intrarenal perfusion. In all high-salt fed groups, systolic blood pressure was elevated (P=0.287). The left ventricular ejection fraction did not differ among high-salt groups. Although CVP decreased in both the furosemide (P=0.032) and the canagliflozin groups (P=0.030), RMP reduction (P=0.003) and preserved renal medulla perfusion were only observed in the canagliflozin group (P=0.001). Histological analysis showed less cast formation in the intrarenal tubule (P=0.032), left ventricle fibrosis (P<0.001), and myocyte thickness (P<0.001) in the canagliflozin group than in the control group. CONCLUSIONS These results suggest that SGLT2-i causes renal decongestion and prevents left ventricular hypertrophy, fibrosis, and dysfunction.
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Affiliation(s)
- Tomofumi Nakatsukasa
- Department of Cardiology, Graduate School of Comprehensive Human Sciences, University of Tsukuba
| | - Tomoko Ishizu
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | - Masumi Ouchi
- Graduate School of Comprehensive Human Sciences, University of Tsukuba
| | | | - Kimi Sato
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
| | | | - Kunio Kawanishi
- Department of Experimental Pathology, Faculty of Medicine, University of Tsukuba
| | - Yoshihiro Seo
- Department of Cardiology, Faculty of Medicine, Nagoya City University Graduate School of Medical Sciences
| | - Masaki Ieda
- Department of Cardiology, Faculty of Medicine, University of Tsukuba
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15
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Nadamuni M, Venable AH, Huen SC. When a calorie isn't just a calorie: a revised look at nutrition in critically ill patients with sepsis and acute kidney injury. Curr Opin Nephrol Hypertens 2022; 31:358-366. [PMID: 35703214 PMCID: PMC9248034 DOI: 10.1097/mnh.0000000000000801] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW To discuss how nutritional management could be optimized to promote protective metabolism in sepsis and associated acute kidney injury. RECENT FINDINGS Recent evidence suggests that sepsis is a metabolically distinct critical illness and that certain metabolic alterations, such as activation of fasting metabolism, may be protective in bacterial sepsis. These findings may explain the lack of survival benefit in recent randomized controlled trials of nutrition therapy for critical illness. These trials are limited by cohort heterogeneity, combining both septic and nonseptic critical illness, and the use of inaccurate caloric estimates to determine energy requirements. These energy estimates are also unable to provide information on specific substrate preferences or the capacity for substrate utilization. As a result, high protein feeding beyond the capacity for protein synthesis could cause harm in septic patients. Excess glucose and insulin exposures suppress fatty acid oxidation, ketogenesis and autophagy, of which emerging evidence suggest are protective against sepsis associated organ damage such as acute kidney injury. SUMMARY Distinguishing pathogenic and protective sepsis-related metabolic changes are critical to enhancing and individualizing nutrition management for critically ill patients.
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Affiliation(s)
| | | | - Sarah C Huen
- Department of Internal Medicine
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX, USA
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16
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Kang WH, Kamaruddin NA, Sukor N. Case Report: Severe Hypernatremia From Ingestion of One's Own Urine. Front Med (Lausanne) 2022; 9:929180. [PMID: 35783646 PMCID: PMC9240661 DOI: 10.3389/fmed.2022.929180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/19/2022] [Indexed: 12/02/2022] Open
Abstract
An often unrecognized cause of hypernatremia is the ingestion of fluids or substances with high osmolality. We hereby report a case of severe hypernatremia with acute kidney injury in a severely debilitated patient with acute gouty arthritis who resorted to ingesting his own urine. Hypernatremia induced by drinking urine could be attributed to many underlying mechanisms, one of the important possible causes is the resultant high serum urea that leads to significant osmotic diuresis and a further increase in free water clearance. To the best of our knowledge this is the first case report that describes this unique cause of hypernatremia.
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Affiliation(s)
- Waye Hann Kang
- Department of Medicine, Faculty of Medicine and Health Sciences, University Tunku Abdul Rahman, Kuala Lumpur, Malaysia
- Department of Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - N. A. Kamaruddin
- Department of Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Norlela Sukor
- Department of Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
- *Correspondence: Norlela Sukor
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17
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Mega-Dose Vitamin C Ameliorates Nonalcoholic Fatty Liver Disease in a Mouse Fast-Food Diet Model. Nutrients 2022; 14:nu14112195. [PMID: 35683997 PMCID: PMC9182669 DOI: 10.3390/nu14112195] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/16/2022] [Accepted: 05/23/2022] [Indexed: 12/15/2022] Open
Abstract
In previous studies, the increasing clinical importance of nonalcoholic fatty liver disease (NAFLD) has been recognized. However, the specific therapeutic strategies or drugs have not been discovered. Vitamin C is a water-soluble antioxidant and is a cofactor in many important biosynthesis pathways. Recently, many researchers have reported that the mega-dose vitamin C treatment had positive effects on various diseases. However, the precise relationship between mega-dose vitamin C and NAFLD has not been completely elucidated. This study has been designed to discover the effects of mega-dose vitamin C on the progression of NAFLD. Twelve-week-old wild-type C57BL6 mice were fed chow diets and high-fat and high-fructose diet (fast-food diet) ad libitum for 11 weeks with or without of vitamin C treatment. Vitamin C was administered in the drinking water (1.5 g/L). In this study, 11 weeks of the mega-dose vitamin C treatment significantly suppressed the development of nonalcoholic steatohepatitis (NASH) independently of the catabolic process. Vitamin C supplements in fast-food diet fed mice significantly decreased diet ingestion and increased water intake. Histopathological analysis revealed that the mice fed a fast-food diet with vitamin C water had a mild renal injury suggesting osmotic nephrosis due to fructose-mediated purine derivatives. These data suggest that the mega-dose vitamin C treatment suppresses high-fructose-diet-mediated NAFLD progression by decreasing diet ingestion and increasing water intake.
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18
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Ramírez-Guerrero G, Müller-Ortiz H, Pedreros-Rosales C. Poliuria en el adulto. Una aproximación diagnóstica basada en la fisiopatología. Rev Clin Esp 2022. [DOI: 10.1016/j.rce.2021.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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19
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Rohrscheib M, Sam R, Raj DS, Argyropoulos CP, Unruh ML, Lew SQ, Ing TS, Levin NW, Tzamaloukas AH. Edelman Revisited: Concepts, Achievements, and Challenges. Front Med (Lausanne) 2022; 8:808765. [PMID: 35083255 PMCID: PMC8784663 DOI: 10.3389/fmed.2021.808765] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/13/2021] [Indexed: 11/13/2022] Open
Abstract
The key message from the 1958 Edelman study states that combinations of external gains or losses of sodium, potassium and water leading to an increase of the fraction (total body sodium plus total body potassium) over total body water will raise the serum sodium concentration ([Na]S), while external gains or losses leading to a decrease in this fraction will lower [Na]S. A variety of studies have supported this concept and current quantitative methods for correcting dysnatremias, including formulas calculating the volume of saline needed for a change in [Na]S are based on it. Not accounting for external losses of sodium, potassium and water during treatment and faulty values for body water inserted in the formulas predicting the change in [Na]S affect the accuracy of these formulas. Newly described factors potentially affecting the change in [Na]S during treatment of dysnatremias include the following: (a) exchanges during development or correction of dysnatremias between osmotically inactive sodium stored in tissues and osmotically active sodium in solution in body fluids; (b) chemical binding of part of body water to macromolecules which would decrease the amount of body water available for osmotic exchanges; and (c) genetic influences on the determination of sodium concentration in body fluids. The effects of these newer developments on the methods of treatment of dysnatremias are not well-established and will need extensive studying. Currently, monitoring of serum sodium concentration remains a critical step during treatment of dysnatremias.
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Affiliation(s)
- Mark Rohrscheib
- Department of Medicine, University of New Mexico School of Medicine, Albuquerque, NM, United States
| | - Ramin Sam
- Department of Medicine, Zuckerberg San Francisco General Hospital and Trauma Center, University of California San Francisco School of Medicine, San Francisco, CA, United States
| | - Dominic S Raj
- Department of Medicine, George Washington University, Washington, DC, United States
| | - Christos P Argyropoulos
- Department of Medicine, University of New Mexico School of Medicine, Albuquerque, NM, United States
| | - Mark L Unruh
- Department of Medicine, University of New Mexico School of Medicine, Albuquerque, NM, United States
| | - Susie Q Lew
- Department of Medicine, George Washington University, Washington, DC, United States
| | - Todd S Ing
- Department of Medicine, Stritch School of Medicine, Loyola University Chicago, Maywood, IL, United States
| | - Nathan W Levin
- Mount Sinai Icahn School of Medicine, New York, NY, United States
| | - Antonios H Tzamaloukas
- Research Service, Department of Medicine, Raymond G. Murphy Veterans Affairs Medical Center and University of New Mexico School of Medicine, Albuquerque, NM, United States
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20
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Ramírez-Guerrero G, Müller-Ortiz H, Pedreros-Rosales C. Polyuria in adults. A diagnostic approach based on pathophysiology. Rev Clin Esp 2021; 222:301-308. [PMID: 34509418 DOI: 10.1016/j.rceng.2021.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 03/18/2021] [Indexed: 10/20/2022]
Abstract
Polyuria is a common clinical condition characterized by a urine output that is inappropriately high (more than 3 L in 24 h) for the patient's blood pressure and plasma sodium levels. From a pathophysiological point of view, it is classified into two types: polyuria due to a greater excretion of solutes (urine osmolality >300 mOsm/L) or due to an inability to increase solute concentration (urine osmolality <150 mOsm/L). Sometimes both mechanisms can coexist (urine osmolality 150-300 mOsm/L). Polyuria is a diagnostic challenge and its proper treatment requires an evaluation of the medical record, determination of urine osmolality, estimation of free water clearance, use of water deprivation tests in aqueous polyuria, and measurement of electrolytes in blood and urine in the case of osmotic polyuria.
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Affiliation(s)
- G Ramírez-Guerrero
- Unidad de Diálisis y Trasplante Renal, Hospital Carlos Van Buren, Valparaíso, Chile; Departamento de Medicina Interna, Facultad de Medicina, Universidad de Valparaíso, Valparaíso, Chile.
| | - H Müller-Ortiz
- Departamento de Medicina Interna, Facultad de Medicina, Universidad de Concepción, Concepción, Bío Bío, Chile; Unidad de Nefrología, Diálisis y Trasplante, Hospital las Higueras de Talcahuano, Talcahuano, Bío Bío, Chile; Instituto de Nefrología Concepción, Concepción, Bío Bío, Chile
| | - C Pedreros-Rosales
- Departamento de Medicina Interna, Facultad de Medicina, Universidad de Concepción, Concepción, Bío Bío, Chile; Unidad de Nefrología, Diálisis y Trasplante, Hospital las Higueras de Talcahuano, Talcahuano, Bío Bío, Chile; Instituto de Nefrología Concepción, Concepción, Bío Bío, Chile
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21
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Voets PJ, Frölke SC, Vogtländer NP, Kaasjager KA. COVID-19 and dysnatremia: A comparison between COVID-19 and non-COVID-19 respiratory illness. SAGE Open Med 2021; 9:20503121211027778. [PMID: 34262763 PMCID: PMC8252341 DOI: 10.1177/20503121211027778] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 06/07/2021] [Indexed: 11/28/2022] Open
Abstract
Objective: To investigate the occurrence of disorders of water and sodium balance in COVID-19 in our clinic. Methods: In this retrospective chart review, patients were included if a polymerase chain test result for SARS-CoV-2 was obtained and if at least one plasma sodium concentration measurement was obtained during the period from March to June 2020. The occurrences of hyponatremia and hypernatremia were compared between 193 SARS-CoV-2-positive and 138 SARS-CoV-2-negative patients. A χ² test was used to determine statistical significance, and the corresponding p-values were calculated. Results: Hypernatremia was significantly more frequently observed in COVID-19 patients, in 38% (74 of 193), versus only 8% in SARS-CoV-2-negative patients (11 of 138) (p < 0.01). Hyponatremia was observed in 34% of the included COVID-19 patients (65 of 193) versus 24% of SARS-CoV-2-negative patients (33 of 138). In 12% of all COVID-19 patients (23 of 193), both hyponatremia and hypernatremia were observed at some point during their admission. Among the non-COVID-19 patients, only 4% showed these plasma sodium concentration fluctuations (5 of 138). The mortality rate among the hospitalized COVID-19 patients was 23% (45 of 193). Correcting for double-counting, more than 71% (32 of 45) of the deceased COVID-19 patients developed dysnatremia (hyponatremia, hypernatremia or both) versus 57% (84 out of 148) of the surviving COVID-19 patients. Conclusion: Disorders of water and sodium balance—and especially hypernatremia—seem to be a common occurrence in COVID-19 patients. This has important implications for the treatment of COVID-19 patients.
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Affiliation(s)
- Philip Jgm Voets
- Department of Nephrology, Gelre Hospital, Apeldoorn, The Netherlands.,Department of Internal Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Sophie C Frölke
- Department of Internal Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Karin Ah Kaasjager
- Department of Internal Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
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22
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Rugg C, Bachler M, Mösenbacher S, Wiewiora E, Schmid S, Kreutziger J, Ströhle M. Early ICU-acquired hypernatraemia is associated with injury severity and preceded by reduced renal sodium and chloride excretion in polytrauma patients. J Crit Care 2021; 65:9-17. [PMID: 34052781 DOI: 10.1016/j.jcrc.2021.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/12/2021] [Accepted: 05/15/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE To further elucidate the origin of early ICU-acquired hypernatraemia. MATERIAL AND METHODS In this retrospective single-centre study, polytrauma patients requiring ICU treatment were analysed. RESULTS Forty-eight (47.5%) of 101 included polytrauma patients developed hypernatraemia within the first 7 days on ICU. They were more severely ill as described by higher SAPS III, ISS, daily SOFA scores and initial norepinephrine requirements as well as longer requirements of mechanical ventilation and ICU treatment in general. The development of hypernatraemia was neither attributable to fluid- or sodium-balances nor renal impairment. Although lower in the hypernatraemic group from day 4 onwards, median creatinine clearances were sufficiently high throughout the observation period. However, in the hypernatraemic group, urine sodium and chloride concentrations prior to the evolvement of hypernatraemia (56 (27-87) mmol/l and 39 (23-77) mmol/l) were significantly decreased when compared to i) the time after developing hypernatraemia (94 (58-134) mmol/l and 78 (36-115) mmol/l; p < 0.001) and ii) the non-hypernatraemic group in general (101 (66-143) mmol/l and 75 (47-109) mmol/l; p < 0.001). CONCLUSIONS Early ICU-acquired hypernatraemia is associated with injury severity and preceded by reduced renal sodium and chloride excretion in polytrauma patients.
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Affiliation(s)
- Christopher Rugg
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
| | - Mirjam Bachler
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
| | - Simon Mösenbacher
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
| | - Elena Wiewiora
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
| | - Stefan Schmid
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
| | - Janett Kreutziger
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
| | - Mathias Ströhle
- Department of Anaesthesiology and Critical Care Medicine, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria.
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23
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Van Regenmortel N, Moers L, Langer T, Roelant E, De Weerdt T, Caironi P, Malbrain MLNG, Elbers P, Van den Wyngaert T, Jorens PG. Fluid-induced harm in the hospital: look beyond volume and start considering sodium. From physiology towards recommendations for daily practice in hospitalized adults. Ann Intensive Care 2021; 11:79. [PMID: 33999276 PMCID: PMC8128950 DOI: 10.1186/s13613-021-00851-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 04/03/2021] [Indexed: 12/21/2022] Open
Abstract
PURPOSE Iatrogenic fluid overload is a potential side effect of intravenous fluid therapy in the hospital. Little attention has been paid to sodium administration as a separate cause of harm. With this narrative review, we aim to substantiate the hypothesis that a considerable amount of fluid-induced harm is caused not only by fluid volume, but also by the sodium that is administered to hospitalized patients. METHODS We show how a regular dietary sodium intake is easily surpassed by the substantial amounts of sodium that are administered during typical hospital stays. The most significant sodium burdens are caused by isotonic maintenance fluid therapy and by fluid creep, defined as the large volume unintentionally administered to patients in the form of dissolved medication. In a section on physiology, we elaborate on the limited renal handling of an acute sodium load. We demonstrate how the subsequent retention of water is an energy-demanding, catabolic process and how free water is needed to excrete large burdens of sodium. We quantify the effect size of sodium-induced fluid retention and discuss its potential clinical impact. Finally, we propose preventive measures, discuss the benefits and risks of low-sodium maintenance fluid therapy, and explore options for reducing the amount of sodium caused by fluid creep. CONCLUSION The sodium burdens caused by isotonic maintenance fluids and fluid creep are responsible for an additional and avoidable derailment of fluid balance, with presumed clinical consequences. Moreover, the handling of sodium overload is characterized by increased catabolism. Easy and effective measures for reducing sodium load and fluid retention include choosing a hypotonic rather than isotonic maintenance fluid strategy (or avoiding these fluids when enough free water is provided through other sources) and dissolving as many medications as possible in glucose 5%.
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Affiliation(s)
- Niels Van Regenmortel
- Department of Intensive Care Medicine, Antwerp University Hospital, Wilrijkstraat 10 Edegem, B-2650, Antwerp, Belgium. .,Department of Intensive Care Medicine, Ziekenhuis Netwerk Antwerpen Campus Stuivenberg, Lange Beeldekensstraat 267, B-2060, Antwerp, Belgium.
| | - Lynn Moers
- Department of Pharmacy, Ziekenhuis Netwerk Antwerpen Campus Stuivenberg, Lange Beeldekensstraat 267, B-2060, Antwerp, Belgium
| | - Thomas Langer
- Department of Medicine and Surgery, University of Milan-Bicocca, Monza, Italy.,Department of Anaesthesia and Intensive Care Medicine, Niguarda Ca' Granda, Milan, Italy
| | - Ella Roelant
- StatUa, Center for Statistics, University of Antwerp, Prinsstraat 13, B-2000, Antwerp, Belgium.,Clinical Trial Center (CTC), CRC Antwerp, Antwerp University Hospital, University of Antwerp, Wilrijkstraat 10, B-2650, Edegem, Belgium
| | - Tim De Weerdt
- Department of Nephrology, Kliniek Sint-Jan, Kruidtuinlaan 32, B-1000, Brussels, Belgium
| | - Pietro Caironi
- Department of Anesthesia and Critical Care, AOU S. Luigi Gonzaga, Department of Oncology, University of Turin, Turin, Italy
| | - Manu L N G Malbrain
- Faculty of Engineering, Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090, Jette, Belgium
| | - Paul Elbers
- Department of Intensive Care Medicine, Research VUmc Intensive Care (REVIVE), Amsterdam Medical Data Science (AMDS), Amsterdam Cardiovascular Sciences (ACS), Amsterdam Infection and Immunity Institute (AI&II), Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
| | - Tim Van den Wyngaert
- Department of Nuclear Medicine, Antwerp University Hospital, Wilrijkstraat 10 Edegem, B-2650, Antwerp, Belgium.,Faculty of Medicine and Health Sciences, University of Antwerp, Universiteitsplein 1 Wilrijk, B-2610, Antwerp, Belgium
| | - Philippe G Jorens
- Department of Intensive Care Medicine, Antwerp University Hospital, Wilrijkstraat 10 Edegem, B-2650, Antwerp, Belgium.,Faculty of Medicine and Health Sciences, University of Antwerp, Universiteitsplein 1 Wilrijk, B-2610, Antwerp, Belgium
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24
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Ing TS, Lew SQ, Tzamaloukas AH, Sam R. Solute-free water excretion and electrolyte-free water excretion are better terms than solute-free water clearance and electrolyte-free water clearance. Int Urol Nephrol 2021; 53:2191-2192. [PMID: 33687641 DOI: 10.1007/s11255-020-02763-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 12/15/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Todd S Ing
- Stritch School of Medicine, Loyola University Chicago, Maywood, IL, USA
| | - Susie Q Lew
- George Washington University School of Medicine, Washington DC, USA
| | - Antonios H Tzamaloukas
- Raymond G. Murphy VA Medical Center and University of New Mexico School of Medicine, Albuquerque, NM, USA
| | - Ramin Sam
- Zuckerberg San Francisco General Hospital and the University of California in San Francisco School of Medicine, San Francisco, CA, USA.
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25
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Renal Function is a Major Determinant of ICU-acquired Hypernatremia: A Balance Study on Sodium Handling. J Transl Int Med 2020; 8:165-176. [PMID: 33062593 PMCID: PMC7534501 DOI: 10.2478/jtim-2020-0026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background and Objectives The development of ICU-acquired hypernatremia (IAH) is almost exclusively attributed to ‘too much salt and too little water’. However, intrinsic mechanisms also have been suggested to play a role. To identify the determinants of IAH, we designed a prospective controlled study. Methods Patients with an anticipated length of stay ICU > 48 hours were included. Patients with hypernatremia on admission and/or on renal replacement therapy were excluded. Patients without IAH were compared with patients with borderline hypernatremia (≥ 143 mmol/L, IAH 143) and more severe hypernatremia (≥ 145 mmol/L, IAH 145). Results We included 89 patients, of which 51% developed IAH 143 and 29% IAH 145. Sodium intake was high in all patients. Fluid balances were slightly positive and comparable between the groups. Patients with IAH 145 were more severely ill on admission, and during admission, their sodium intake, cumulative sodium balances, serum creatinine and copeptin levels were higher. According to the free water clearance, all the patients conserved water. On multivariate analysis, the baseline serum creatinine was an independent risk factor for the development of IAH 143 and IAH 145. Also, the copeptin levels remained significant for IAH 143 and IAH 145. Sodium intake remained only significant for patients with IAH 145. Conclusions Our data support the hypothesis that IAH is due to the combination of higher sodium intake and a urinary concentration deficit, as a manifestation of the renal impairment elicited by severe illness.
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Imaizumi T, Nakatochi M, Fujita Y, Yamamoto R, Watanabe K, Maekawa M, Yamawaka T, Katsuno T, Maruyama S. Glucocorticoid treatment is associated with ICU-acquired hypernatremia: a nested case-control study. Clin Exp Nephrol 2020; 25:131-139. [PMID: 32960424 PMCID: PMC7506169 DOI: 10.1007/s10157-020-01967-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 09/02/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND Hypernatremia is a major electrolyte disorder associated with death among critically ill patients. Glucocorticoid therapy may cause hypernatremia in refractory septic shock patients, but the association between glucocorticoid and intensive care unit (ICU)-acquired hypernatremia (IAH) remains unclear. The aim of this study was to clarify whether glucocorticoid administration was associated with IAH. METHODS This was a nested case-control study using data from an established cohort including 121 IAH cases identified from 1756 patients who were admitted to ICU in a tertiary care facility in Japan. We included patients who were admitted with a normal range of serum sodium concentrations (130-149 mEq/L) from January 1, 2013 to December 31, 2015 and remained in ICU for ≥ 2 days. Hypernatremia was defined as serum sodium concentration ≥ 150 mEq/L. Each case was matched to one control. RESULTS Multivariable conditional logistic regression revealed high-dose glucocorticoid {odds ratio (OR), 4.15 [95% confidence interval (CI) 1.29-13.4]}, acute kidney injury (AKI) [OR, 2.72 (95% CI 1.31-5.62)], and osmotic diuretics [OR, 3.44 (95% CI 1.41-8.39)] to be significantly associated with IAH. The contents and amounts of fluid infusion were not significantly associated with IAH. There were also significant duration-response effects between duration of glucocorticoid use and IAH; however, pulse glucocorticoid administration was not associated with IAH. CONCLUSION In this nested case-control study, we demonstrated a significant association between IAH and high-dose glucocorticoid with significant duration-response effects. Serum sodium concentrations should be monitored carefully in critically ill patients administered prolonged high-dose glucocorticoid.
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Affiliation(s)
- Takahiro Imaizumi
- Department of Nephrology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Masahiro Nakatochi
- Biostatistics and Bioinformatics Section, Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - Yoshiro Fujita
- Department of Nephrology, Chubu Rosai Hospital, Nagoya, Japan
| | - Rie Yamamoto
- Department of Nephrology, Toyohashi Municipal Hospital, Toyohashi, Japan
| | - Kennshi Watanabe
- Department of Nephrology, Toyohashi Municipal Hospital, Toyohashi, Japan
| | - Michitaka Maekawa
- Department of Nephrology, Toyohashi Municipal Hospital, Toyohashi, Japan
| | - Taishi Yamawaka
- Department of Nephrology, Toyohashi Municipal Hospital, Toyohashi, Japan
| | - Takayuki Katsuno
- Department of Nephrology and Rheumatology, Aichi Medical University, Nagakute, Japan
| | - Shoichi Maruyama
- Department of Nephrology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
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Rugg C, Ströhle M, Treml B, Bachler M, Schmid S, Kreutziger J. ICU-Acquired Hypernatremia Is Associated with Persistent Inflammation, Immunosuppression and Catabolism Syndrome. J Clin Med 2020; 9:jcm9093017. [PMID: 32962124 PMCID: PMC7563338 DOI: 10.3390/jcm9093017] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/15/2020] [Accepted: 09/17/2020] [Indexed: 12/20/2022] Open
Abstract
Developing hypernatremia while on intensive care unit (ICU) is a common problem with various undesirable effects. A link to persistent inflammation, immunosuppression and catabolism syndrome (PICS) can be established in two ways. On the one hand, hypernatremia can lead to inflammation and catabolism via hyperosmolar cell stress, and on the other, profound catabolism can lead to hypernatremia via urea-induced osmotic diuresis. In this retrospective single-center study, we examined 115 patients with prolonged ICU stays (≥14 days) and sufficient renal function. Depending on their serum sodium concentrations between ICU day 7 and 21, allocation to a hypernatremic (high) and a nonhypernatremic group (low) took place. Distinct signs of PICS were detectable within the complete cohort. Thirty-three of them (28.7%) suffered from ICU-acquired hypernatremia, which was associated with explicitly higher signs of inflammation and ongoing catabolism as well as a prolonged ICU length of stay. Catabolism was discriminated better by the urea generation rate and the urea-to-creatinine ratio than by serum albumin concentration. An assignable cause for hypernatremia was the urea-induced osmotic diuresis. When dealing with ICU patients requiring prolonged treatment, hypernatremia should at least trigger thoughts on PICS as a contributing factor. In this regard, the urea-to-creatinine ratio is an easily accessible biomarker for catabolism.
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Affiliation(s)
- Christopher Rugg
- Department of General and Surgical Critical Care Medicine, Innsbruck Medical University Hospital, Anichstr. 35, 6020 Innsbruck, Austria; (M.S.); (B.T.); (M.B.); (S.S.); (J.K.)
- Correspondence: ; Tel.: +43-50-504-80271
| | - Mathias Ströhle
- Department of General and Surgical Critical Care Medicine, Innsbruck Medical University Hospital, Anichstr. 35, 6020 Innsbruck, Austria; (M.S.); (B.T.); (M.B.); (S.S.); (J.K.)
| | - Benedikt Treml
- Department of General and Surgical Critical Care Medicine, Innsbruck Medical University Hospital, Anichstr. 35, 6020 Innsbruck, Austria; (M.S.); (B.T.); (M.B.); (S.S.); (J.K.)
| | - Mirjam Bachler
- Department of General and Surgical Critical Care Medicine, Innsbruck Medical University Hospital, Anichstr. 35, 6020 Innsbruck, Austria; (M.S.); (B.T.); (M.B.); (S.S.); (J.K.)
- Institute for Sports Medicine, Alpine Medicine and Health Tourism, UMIT—University for Health Sciences, Medical Informatics and Technology, 6060 Hall in Tirol, Austria
| | - Stefan Schmid
- Department of General and Surgical Critical Care Medicine, Innsbruck Medical University Hospital, Anichstr. 35, 6020 Innsbruck, Austria; (M.S.); (B.T.); (M.B.); (S.S.); (J.K.)
| | - Janett Kreutziger
- Department of General and Surgical Critical Care Medicine, Innsbruck Medical University Hospital, Anichstr. 35, 6020 Innsbruck, Austria; (M.S.); (B.T.); (M.B.); (S.S.); (J.K.)
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van Gelder MK, Ligabue G, Giovanella S, Bianchini E, Simonis F, Hazenbrink DHM, Joles JA, Bajo Rubio MA, Selgas R, Cappelli G, Gerritsen KGF. In vitro efficacy and safety of a system for sorbent-assisted peritoneal dialysis. Am J Physiol Renal Physiol 2020; 319:F162-F170. [PMID: 32475132 DOI: 10.1152/ajprenal.00079.2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
A system for sorbent-assisted peritoneal dialysis (SAPD) was designed to continuously recirculate dialysate via a tidal mode using a single lumen peritoneal catheter with regeneration of spent dialysate by means of sorbent technology. We hypothesize that SAPD treatment will maintain a high plasma-to-dialysate concentration gradient and increase the mass transfer area coefficient of solutes. Thereby, the SAPD system may enhance clearance while reducing the number of exchanges. Application is envisaged at night as a bedside device (12 kg, nighttime system). A wearable system (2.0 kg, daytime system) may further enhance clearance during the day. Urea, creatinine, and phosphate removal were studied with the daytime and nighttime system (n = 3 per system) by recirculating 2 liters of spent peritoneal dialysate via a tidal mode (mean flow rate: 50 and 100 mL/min, respectively) for 8 h in vitro. Time-averaged plasma clearance over 24 h was modeled assuming one 2 liter exchange/day, an increase in mass transfer area coefficient, and 0.9 liters ultrafiltration/day. Urea, creatinine, and phosphate removal was 33.2 ± 4.1, 5.3 ± 0.5, and 6.2 ± 1.8 mmol, respectively, with the daytime system and 204 ± 28, 10.3 ± 2.4, and 11.4 ± 2.1 mmol, respectively, with the nighttime system. Time-averaged plasma clearances of urea, creatinine and phosphate were 9.6 ± 1.1, 9.6 ± 1.7, and 7.0 ± 0.9 mL/min, respectively, with the nighttime system and 10.8 ± 1.1, 13.4 ± 1.8, and 9.7 ± 1.6 mL/min, respectively, with the daytime and nighttime system. SAPD treatment may improve removal of uremic toxins compared with conventional peritoneal dialysis, provided that peritoneal mass transport will increase.
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Affiliation(s)
- Maaike K van Gelder
- Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Giulia Ligabue
- Division of Nephrology, Surgical, Medical, Dental, Morphology Sciences, Transplant, Oncology and Regenerative Medicine Department, University of Modena and Reggio Emilia, Modena, Italy
| | - Silvia Giovanella
- Division of Nephrology, Surgical, Medical, Dental, Morphology Sciences, Transplant, Oncology and Regenerative Medicine Department, University of Modena and Reggio Emilia, Modena, Italy
| | - Elena Bianchini
- Division of Nephrology, Surgical, Medical, Dental, Morphology Sciences, Transplant, Oncology and Regenerative Medicine Department, University of Modena and Reggio Emilia, Modena, Italy
| | | | - Diënty H M Hazenbrink
- Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jaap A Joles
- Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Maria A Bajo Rubio
- Nephrology Service, Hospital Universitario La Paz, Institute for Health Research, Instituto Reina Sofía de Investigación en Nefrología, the Spanish Renal Research Network, Madrid, Spain
| | - Rafael Selgas
- Nephrology Service, Hospital Universitario La Paz, Institute for Health Research, Instituto Reina Sofía de Investigación en Nefrología, the Spanish Renal Research Network, Madrid, Spain
| | - Gianni Cappelli
- Division of Nephrology, Surgical, Medical, Dental, Morphology Sciences, Transplant, Oncology and Regenerative Medicine Department, University of Modena and Reggio Emilia, Modena, Italy
| | - Karin G F Gerritsen
- Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht, The Netherlands
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Hypernatriämie. Med Klin Intensivmed Notfmed 2020; 115:263-274. [DOI: 10.1007/s00063-020-00667-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/20/2020] [Accepted: 02/20/2020] [Indexed: 10/24/2022]
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The Link between Hypermetabolism and Hypernatremia in Severely Burned Patients. Nutrients 2020; 12:nu12030774. [PMID: 32183417 PMCID: PMC7146173 DOI: 10.3390/nu12030774] [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: 02/25/2020] [Revised: 03/10/2020] [Accepted: 03/12/2020] [Indexed: 02/06/2023] Open
Abstract
Hypernatremia is common in critical care, especially in severely burned patients. Its occurrence has been linked to increased mortality. Causes of hypernatremia involve a net gain of sodium or a loss of free water. Renal loss of electrolyte-free water due to urea-induced osmotic diuresis has been described as causative in up to 10% of hypernatremic critical ill patients. In this context, excessive urea production due to protein catabolism acts as major contributor. In severe burn injury, muscle wasting occurs as result of hypermetabolism triggered by ongoing systemic inflammation. In this retrospective study, severely burned patients were analysed for the occurrence of hypernatremia and subsequent signs of hypermetabolism. The urea: creatinine ratio—as a surrogate for hypermetabolism—sufficiently discriminated between two groups. Four of nine hypernatremic burn patients (44%) had a highly elevated urea: creatinine ratio, which was clearly associated with an increased urea production and catabolic index. This hypermetabolism was linked to hypernatremia via an elevated urea- and reduced electrolyte-fraction in renal osmole excretion, which resulted in an increased renal loss of electrolyte-free water. In hypermetabolic severely burned patients, the electrolyte-free water clearance is a major contributor to hypernatremia. A positive correlation to serum sodium concentration was shown.
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Prevalence and Prognostic Impact of Hypernatremia in Sepsis and Septic Shock Patients in the Intensive Care Unit: A Single Centre Experience. ACTA ACUST UNITED AC 2020; 6:52-58. [PMID: 32104731 PMCID: PMC7029404 DOI: 10.2478/jccm-2020-0001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 01/12/2020] [Indexed: 12/12/2022]
Abstract
Introduction Hypernatremia is a commonly associated electrolyte disturbance in sepsis and septic shock patients in the ICU. The objective of this study was to identify the prognostic value of hypernatremia in sepsis and septic shock Material and Methods A prospective study conducted on sepsis and septic shock patients diagnosed prior to admission in the ICU in King Hamad University Hospital, Bahrain from January 1st 2017 to February 28th 2019. Data including age, sex, comorbidities, source of sepsis, sodium levels on days one, three, and seven. Data was correlated with the outcome (survival/death and the length of ICU stay). Results Patients included were 168, 110 survived, and 58 died. Hypernatraemia at day seven was associated with significantly higher mortality (P= 0.03). Hypernatraemia at Day1was associated with a significantly prolonged stay in the ICU (p= 0.039).Multivariate analysis to identify the independent predictors of mortality revealed that immunosuppression and hypernatraemia at Day7 proved to be independent predictors of mortality (P= 0.026 and 0.039 respectively). Conclusion Hypernatremia can be an independent predictor of poor outcome in septic and septic shock patients in the ICU.
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Distenhreft JIQ, Vianna JGP, Scopel GS, Ramos JM, Seguro AC, Luchi WM. The role of urea-induced osmotic diuresis and hypernatremia in a critically ill patient: case report and literature review. ACTA ACUST UNITED AC 2019; 42:106-112. [PMID: 31063175 PMCID: PMC7213928 DOI: 10.1590/2175-8239-jbn-2018-0226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 02/04/2019] [Indexed: 01/28/2023]
Abstract
Hypernatremia is a common electrolyte problem at the intensive care setting, with a prevalence that can reach up to 25%. It is associated with a longer hospital stay and is an independent risk factor for mortality. We report a case of hypernatremia of multifactorial origin in the intensive care setting, emphasizing the role of osmotic diuresis due to excessive urea generation, an underdiagnosed and a not well-known cause of hypernatremia. This scenario may occur in patients using high doses of corticosteroids, with gastrointestinal bleeding, under diets and hyperprotein supplements, and with hypercatabolism, especially during the recovery phase of renal injury. Through the present teaching case, we discuss a clinical approach to the diagnosis of urea-induced osmotic diuresis and hypernatremia, highlighting the utility of the electrolyte-free water clearance concept in understanding the development of hypernatremia.
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Affiliation(s)
| | - Júlia Guasti Pinto Vianna
- Serviço de Nefrologia, Hospital Universitário Cassiano Antonio Moraes, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - Gabriela S Scopel
- Serviço de Nefrologia, Hospital Universitário Cassiano Antonio Moraes, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - Jayme Mendonça Ramos
- Serviço de Nefrologia, Hospital Universitário Cassiano Antonio Moraes, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - Antonio Carlos Seguro
- Laboratório de Investigação Médica, Hospital das Clínicas da Faculdade de Medicina da São Paulo, Universidade de São Paulo, São Paulo, Brasil
| | - Weverton Machado Luchi
- Serviço de Nefrologia, Hospital Universitário Cassiano Antonio Moraes, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
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Wester M, van Gelder MK, Joles JA, Simonis F, Hazenbrink DHM, van Berkel TWM, Vaessen KRD, Boer WH, Verhaar MC, Gerritsen KGF. Removal of urea by electro-oxidation in a miniature dialysis device: a study in awake goats. Am J Physiol Renal Physiol 2018; 315:F1385-F1397. [PMID: 29993277 PMCID: PMC6293304 DOI: 10.1152/ajprenal.00094.2018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 07/09/2018] [Accepted: 07/09/2018] [Indexed: 01/09/2023] Open
Abstract
The key to success in developing a wearable dialysis device is a technique to safely and efficiently regenerate and reuse a small volume of dialysate in a closed-loop system. In a hemodialysis model in goats, we explored whether urea removal by electro-oxidation (EO) could be effectively and safely applied in vivo. A miniature dialysis device was built, containing 1 or 2 "EO units," each with 10 graphite electrodes, with a cumulative electrode surface of 585 cm2 per unit. The units also contained poly(styrene-divinylbenzene) sulfonate beads, FeOOH beads, and activated carbon for respective potassium, phosphate, and chlorine removal. Urea, potassium, and phosphate were infused to create "uremic" conditions. Urea removal was dependent on total electrode surface area [removal of 8 mmol/h (SD 1) and 16 mmol/h (SD 2) and clearance of 12 ml/min (SD 1) and 20 ml/min (SD 3) with 1 and 2 EO units, respectively] and plasma urea concentration but not on flow rate. Extrapolating urea removal with 2 EO units to 24 h would suffice to remove daily urea production, but for intermittent dialysis, additional units would be required. EO had practically no effects on potassium and phosphate removal or electrolyte balance. However, slight ammonium releasewas observed, and some chlorine release at higher dialysate flow rates. Minor effects on acid-base balance were observed, possibly partly due to infusion of chloride. Mild hemolysis occurred, which seemed related to urea infusion. In conclusion, clinically relevant urea removal was achieved in vivo by electro-oxidation. Efficacy and safety testing in a large-animal model with uremia is now indicated.
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Affiliation(s)
- Maarten Wester
- Department of Nephrology and Hypertension, University Medical Center Utrecht and Regenerative Medicine Utrecht, Utrecht University , Utrecht , The Netherlands
| | - Maaike K van Gelder
- Department of Nephrology and Hypertension, University Medical Center Utrecht and Regenerative Medicine Utrecht, Utrecht University , Utrecht , The Netherlands
| | - Jaap A Joles
- Department of Nephrology and Hypertension, University Medical Center Utrecht and Regenerative Medicine Utrecht, Utrecht University , Utrecht , The Netherlands
| | | | - Diënty H M Hazenbrink
- Department of Nephrology and Hypertension, University Medical Center Utrecht and Regenerative Medicine Utrecht, Utrecht University , Utrecht , The Netherlands
| | - Theo W M van Berkel
- Department of Nephrology and Hypertension, University Medical Center Utrecht and Regenerative Medicine Utrecht, Utrecht University , Utrecht , The Netherlands
| | - Koen R D Vaessen
- Central Laboratory Animal Research Facility, Utrecht University , Utrecht , The Netherlands
| | - Walther H Boer
- Department of Nephrology and Hypertension, University Medical Center Utrecht and Regenerative Medicine Utrecht, Utrecht University , Utrecht , The Netherlands
| | - Marianne C Verhaar
- Department of Nephrology and Hypertension, University Medical Center Utrecht and Regenerative Medicine Utrecht, Utrecht University , Utrecht , The Netherlands
| | - Karin G F Gerritsen
- Department of Nephrology and Hypertension, University Medical Center Utrecht and Regenerative Medicine Utrecht, Utrecht University , Utrecht , The Netherlands
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Nagler EV, Haller MC, Van Biesen W, Vanholder R, Craig JC, Webster AC. Interventions for chronic non-hypovolaemic hypotonic hyponatraemia. Cochrane Database Syst Rev 2018; 6:CD010965. [PMID: 29953167 PMCID: PMC6513194 DOI: 10.1002/14651858.cd010965.pub2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Chronic (present > 48 hours) non-hypovolaemic hyponatraemia occurs frequently, can be caused by various conditions, and is associated with shorter survival and longer hospital stays. Many treatments, such as fluid restriction or vasopressin receptor antagonists can be used to improve the hyponatraemia, but whether that translates into improved patient-important outcomes is less certain. OBJECTIVES This review aimed to 1) look at the benefits and harms of interventions for chronic non-hypovolaemic hypotonic hyponatraemia when compared with placebo, no treatment or head-to-head; and 2) determine if benefits and harms vary in absolute or relative terms dependent on the specific compound within a drug class, on the dosage used, or the underlying disorder causing the hyponatraemia. SEARCH METHODS We searched the Cochrane Kidney and Transplant Register of Studies up to 1 December 2017 through contact with the Information Specialist using search terms relevant to this review. Studies in the Register are identified through searches of CENTRAL, MEDLINE, and EMBASE, conference proceedings, the International Clinical Trials Register (ICTRP) Search Portal and ClinicalTrials.gov. We also screened the reference lists of potentially relevant studies, contacted authors, and screened the websites of regulatory agencies. SELECTION CRITERIA We included randomised controlled trials (RCTs) and quasi-RCTs that compared the effects of any intervention with placebo, no treatment, standard care, or any other intervention in patients with chronic non-hypovolaemic hypotonic hyponatraemia. We also included subgroups with hyponatraemia from studies with broader inclusion criteria (e.g. people with chronic heart failure or people with cirrhosis with or without hyponatraemia), provided we could obtain outcomes for participants with hyponatraemia from the report or the study authors. DATA COLLECTION AND ANALYSIS Two authors independently extracted data and assessed risk of bias. We expressed treatment effects as mean difference (MD) for continuous outcomes (health-related quality of life, length of hospital stay, change from baseline in serum sodium concentration, cognitive function), and risk ratio (RR) for dichotomous outcomes (death, response and rapid increase in serum sodium concentration, hypernatraemia, polyuria, hypotension, acute kidney injury, liver function abnormalities) together with 95% confidence intervals (CI). MAIN RESULTS We identified 35 studies, enrolling 3429 participants. Twenty-eight studies (3189 participants) compared a vasopressin receptor antagonist versus placebo, usual care, no treatment, or fluid restriction. In adults with chronic, non-hypovolaemic hypotonic hyponatraemia, vasopressin receptor antagonists have uncertain effects on death at six months (15 studies, 2330 participants: RR 1.11, 95% CI 0.92 to 1.33) due to risk of selective reporting and serious imprecision; and on health-related quality of life because results are at serious risk of performance, selective reporting and attrition bias, and suffer from indirectness related to the validity of the Short Form Health Survey (SF-12) in the setting of hyponatraemia. Vasopressin receptor antagonists may reduce hospital stay (low certainty evidence due to risk of performance bias and imprecision) (3 studies, 610 participants: MD -1.63 days, 95% CI -2.96 to -0.30), and may make little or no difference to cognitive function (low certainty evidence due to indirectness and imprecision). Vasopressin receptor antagonists probably increase the intermediate outcome of serum sodium concentration (21 studies, 2641 participants: MD 4.17 mmol/L, 95% CI 3.18 to 5.16), corresponding to two and a half as many people having a 5 to 6 mmol/L increase in sodium concentration compared with placebo at 4 to 180 days (moderate certainty evidence due to risk of attrition bias) (18 studies, 2014 participants: RR 2.49, 95% CI 1.95 to 3.18). But they probably also increase the risk of rapid serum sodium correction - most commonly defined as > 12 mmol/L/d (moderate certainty evidence due to indirectness) (14 studies, 2058 participants: RR 1.67, 95% CI 1.16 to 2.40) and commonly cause side-effects such as thirst (13 studies, 1666 participants: OR 2.77, 95% CI 1.80 to 4.27) and polyuria (6 studies, 1272 participants): RR 4.69, 95% CI 1.59 to 13.85) (high certainty evidence). The potential for liver toxicity remains uncertain due to large imprecision. Effects were generally consistent across the different agents, suggesting class effect.Data for other interventions such as fluid restriction, urea, mannitol, loop diuretics, corticosteroids, demeclocycline, lithium and phenytoin were largely absent. AUTHORS' CONCLUSIONS In people with chronic hyponatraemia, vasopressin receptor antagonists modestly raise serum sodium concentration at the cost of a 3% increased risk of it being rapid. To date there is very low certainty evidence for patient-important outcomes; the effects on mortality and health-related quality of life are unclear and do not rule out appreciable benefit or harm; there does not appear to be an important effect on cognitive function, but hospital stay may be slightly shorter, although available data are limited. Treatment decisions must weigh the value of an increase in serum sodium concentration against its short-term risks and unknown effects on patient-important outcomes. Evidence for other treatments is largely absent.Further studies assessing standard treatments such as fluid restriction or urea against placebo and one-another would inform practice and are warranted. Given the limited available evidence for patient-important outcomes, any study should include these outcomes in a standardised manner.
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Affiliation(s)
- Evi V Nagler
- Ghent University HospitalRenal Division, Sector Metabolic and Cardiovascular ConditionsDe Pintelaan 185GhentBelgium9000
- Guidance Body of the European Renal Association – European Dialysis and Transplant Association (ERA‐EDTA)European Renal Best Practice (ERBP)LondonUK
| | - Maria C Haller
- Guidance Body of the European Renal Association – European Dialysis and Transplant Association (ERA‐EDTA)European Renal Best Practice (ERBP)LondonUK
- Medical University ViennaSection for Clinical Biometrics, Center for Medical Statistics, Informatics and Intelligent SystemsSpitalgasse 23ViennaAustriaA‐1090
- Ordensklinikum Linz ElisabethinenDepartment of NephrologyFadingerstraße 1LinzAustria4020
| | - Wim Van Biesen
- Ghent University HospitalRenal Division, Sector Metabolic and Cardiovascular ConditionsDe Pintelaan 185GhentBelgium9000
- Guidance Body of the European Renal Association – European Dialysis and Transplant Association (ERA‐EDTA)European Renal Best Practice (ERBP)LondonUK
| | - Raymond Vanholder
- Ghent University HospitalRenal Division, Sector Metabolic and Cardiovascular ConditionsDe Pintelaan 185GhentBelgium9000
- Guidance Body of the European Renal Association – European Dialysis and Transplant Association (ERA‐EDTA)European Renal Best Practice (ERBP)LondonUK
| | - Jonathan C Craig
- The Children's Hospital at WestmeadCochrane Kidney and Transplant, Centre for Kidney ResearchWestmeadNSWAustralia2145
- The University of SydneySydney School of Public HealthEdward Ford Building A27SydneyNSWAustralia2006
- Flinders UniversityCollege of Medicine and Public HealthAdelaideSAAustralia5001
| | - Angela C Webster
- The Children's Hospital at WestmeadCochrane Kidney and Transplant, Centre for Kidney ResearchWestmeadNSWAustralia2145
- The University of SydneySydney School of Public HealthEdward Ford Building A27SydneyNSWAustralia2006
- The University of Sydney at WestmeadCentre for Transplant and Renal Research, Westmead Millennium InstituteWestmeadNSWAustralia2145
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Roumelioti ME, Ing TS, Rondon-Berrios H, Glew RH, Khitan ZJ, Sun Y, Malhotra D, Raj DS, Agaba EI, Murata GH, Shapiro JI, Tzamaloukas AH. Principles of quantitative water and electrolyte replacement of losses from osmotic diuresis. Int Urol Nephrol 2018; 50:1263-1270. [PMID: 29511980 DOI: 10.1007/s11255-018-1822-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 02/04/2018] [Indexed: 02/08/2023]
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Hallow KM, Helmlinger G, Greasley PJ, McMurray JJV, Boulton DW. Why do SGLT2 inhibitors reduce heart failure hospitalization? A differential volume regulation hypothesis. Diabetes Obes Metab 2018; 20:479-487. [PMID: 29024278 DOI: 10.1111/dom.13126] [Citation(s) in RCA: 309] [Impact Index Per Article: 51.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 09/21/2017] [Accepted: 10/09/2017] [Indexed: 12/25/2022]
Abstract
The effect of a sodium glucose cotransporter 2 inhibitor (SGLT2i) in reducing heart failure hospitalization in the EMPA-REG OUTCOMES trial has raised the possibility of using these agents to treat established heart failure. We hypothesize that osmotic diuresis induced by SGLT2 inhibition, a distinctly different diuretic mechanism than that of other diuretic classes, results in greater electrolyte-free water clearance and, ultimately, in greater fluid clearance from the interstitial fluid (IF) space than from the circulation, potentially resulting in congestion relief with minimal impact on blood volume, arterial filling and organ perfusion. We utilize a mathematical model to illustrate that electrolyte-free water clearance results in a greater reduction in IF volume compared to blood volume, and that this difference may be mediated by peripheral sequestration of osmotically inactive sodium. By coupling the model with data on plasma and urinary sodium and water in healthy subjects who received either the SGLT2i dapagliflozin or loop diuretic bumetanide, we predict that dapagliflozin produces a 2-fold greater reduction in IF volume compared to blood volume, while the reduction in IF volume with bumetanide is only 78% of the reduction in blood volume. Heart failure is characterized by excess fluid accumulation, in both the vascular compartment and interstitial space, yet many heart failure patients have arterial underfilling because of low cardiac output, which may be aggravated by conventional diuretic treatment. Thus, we hypothesize that, by reducing IF volume to a greater extent than blood volume, SGLT2 inhibitors might provide better control of congestion without reducing arterial filling and perfusion.
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Affiliation(s)
- Karen M Hallow
- School of Chemical, Materials, and Biomedical Engineering, University of Georgia, Athens, Georgia
- Department of Epidemiology and Biostatistics, University of Georgia, Athens, Georgia
| | - Gabriel Helmlinger
- Quantitative Clinical Pharmacology, Early Clinical Development, Innovative Medicines, AstraZeneca, Waltham, Massachusetts
| | - Peter J Greasley
- Early Clinical Development, Innovative Medicines, AstraZeneca, Gothenburg, Sweden
| | - John J V McMurray
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - David W Boulton
- Quantitative Clinical Pharmacology, Early Clinical Development, Innovative Medicines, AstraZeneca, Gaithersburg, Maryland
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Imaizumi T, Nakatochi M, Fujita Y, Nomura R, Watanabe K, Maekawa M, Yamakawa T, Katsuno T, Maruyama S. The association between intensive care unit-acquired hypernatraemia and mortality in critically ill patients with cerebrovascular diseases: a single-centre cohort study in Japan. BMJ Open 2017; 7:e016248. [PMID: 28821524 PMCID: PMC5629676 DOI: 10.1136/bmjopen-2017-016248] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
OBJECTIVES Hypernatraemia is one of the major electrolyte disorders associated with mortality among critically ill patients in intensive care units (ICUs). It is unclear whether this applies to patients with cerebrovascular diseases in whom high sodium concentrations may be allowed in order to prevent cerebral oedema. This study aimed to examine the association between ICU-acquired hypernatraemia and the prognosis of patients with cerebrovascular diseases. DESIGN A retrospective cohort study. SETTING The incidence of ICU-acquired hypernatraemia was assessed retrospectively in a single tertiary care facility in Japan. PARTICIPANTS Adult patients (≥18 years old) whose length of stay in ICU was >2 days and those whose serum sodium concentrations were 130-149 mEq/L on admission to ICU were included. OUTCOME MEASURES 28-day in-hospital mortality risk was assessed by Cox regression analysis. Hypernatraemia was defined as serum sodium concentration ≥150 mEq/L. Using multivariate analysis, we examined whether ICU-acquired hypernatraemia and the main symptom present at ICU admission were associated with time to death among ICU patients. We also evaluated how the maximum and minimum sodium concentrations during ICU stay were associated with mortality, using restricted cubic splines. RESULTS Of 1756 patients, 121 developed ICU-acquired hypernatraemia. Multivariate Cox proportional hazard analysis revealed an association between ICU-acquired hypernatraemia and 28-day mortality (adjusted HR, 3.07 (95% CI 2.12 to 4.44)). The interaction between ICU-acquired hypernatraemia and cerebrovascular disease was significantly associated with 28-day mortality (HR, 3.03 (95% CI 1.29 to 7.15)). The restricted cubic splines analysis of maximum serum sodium concentration in ICU patients determined a threshold maximum of 147 mEq/L. There was no significant association between minimum sodium concentration and mortality. CONCLUSIONS ICU-acquired hypernatraemia was associated with an increased mortality rate among critically ill patients with cerebrovascular diseases; the threshold maximum serum sodium concentration associated with mortality was 147 mEq/L.
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Affiliation(s)
- Takahiro Imaizumi
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Masahiro Nakatochi
- Statistical Analysis Section, Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Yoshiro Fujita
- Department of Nephrology and Rheumatology, Chubu Rosai Hospital, Nagoya, Aichi, Japan
| | - Rie Nomura
- Department of Nephrology, Toyohashi Municipal Hospital, Toyohashi, Aichi, Japan
| | - Kenshi Watanabe
- Department of Nephrology, Toyohashi Municipal Hospital, Toyohashi, Aichi, Japan
| | - Michitaka Maekawa
- Department of Nephrology, Toyohashi Municipal Hospital, Toyohashi, Aichi, Japan
| | - Taishi Yamakawa
- Department of Nephrology, Toyohashi Municipal Hospital, Toyohashi, Aichi, Japan
| | - Takayuki Katsuno
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Shoichi Maruyama
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
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The Development of Intensive Care Unit Acquired Hypernatremia Is Not Explained by Sodium Overload or Water Deficit: A Retrospective Cohort Study on Water Balance and Sodium Handling. Crit Care Res Pract 2016; 2016:9571583. [PMID: 27703807 PMCID: PMC5040124 DOI: 10.1155/2016/9571583] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 07/27/2016] [Accepted: 08/15/2016] [Indexed: 01/27/2023] Open
Abstract
Background. ICU acquired hypernatremia (IAH, serum sodium concentration (sNa) ≥ 143 mmol/L) is mainly considered iatrogenic, induced by sodium overload and water deficit. Main goal of the current paper was to answer the following questions: Can the development of IAH indeed be explained by sodium intake and water balance? Or can it be explained by renal cation excretion? Methods. Two retrospective studies were conducted: a balance study in 97 ICU patients with and without IAH and a survey on renal cation excretion in 115 patients with IAH. Results. Sodium intake within the first 48 hours of ICU admission was 12.5 [9.3-17.5] g in patients without IAH (n = 50) and 15.8 [9-21.9] g in patients with IAH (n = 47), p = 0.13. Fluid balance was 2.3 [1-3.7] L and 2.5 [0.8-4.2] L, respectively, p = 0.77. Urine cation excretion (urine Na + K) was < sNa in 99 out of 115 patients with IAH. Severity of illness was the only independent variable predicting development of IAH and low cation excretion, respectively. Conclusion. IAH is not explained by sodium intake or fluid balance. Patients with IAH are characterized by low urine cation excretion, despite positive fluid balances. The current paradigm does not seem to explain IAH to the full extent and warrants further studies on sodium handling in ICU patients.
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Hu B, Han Q, Mengke N, He K, Zhang Y, Nie Z, Zeng H. Prognostic value of ICU-acquired hypernatremia in patients with neurological dysfunction. Medicine (Baltimore) 2016; 95:e3840. [PMID: 27583842 PMCID: PMC5008526 DOI: 10.1097/md.0000000000003840] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Many studies have indicated that hypernatremia is associated with increased mortality. In this study, we aimed to explore the relationship between intensive care unit (ICU)-acquired hypernatremia and the prognosis of critically neurological patients.Based on serum sodium level in the ICU, 450 patients were divided into 3 groups: 222 had normal serum sodium, 142 had mild hypernatremia, and 86 had severe hypernatremia. Kaplan-Meier and multivariable binary logistic regression analyses were performed to evaluate the prognostic value of hypernatremia in critically neurological patients. Receiver operating characteristic (ROC) curve was constructed for serum sodium levels to determine their roles in predicting ICU mortality.Hypernatremia was significantly related with age, Glasgow Coma Scale (GCS) score, serum sodium, APACHE II score, and serum creatinine. Moreover, the different treatment outcome including mechanical ventilation, the days of stayed in ICU, and Glasgow Outcome Scale score had correlation with serum sodium levels. Old ages, GCS score, therapeutic intervention scoring system (TISS) score, APACHE II score, serum sodium peak, and so on were all associated with the mortality. In addition, hypernatremia was an independent prognostic factor for critically neurological patients by logistic regression analysis (odds ratio = 1.192, 95% confidence interval = 1.135-1.252, P = 0.000). Moreover, we got the sensitivity of 79.4% and specificity of 74.5% in the ROC analysis between peak serum sodium and the mortality. The area under the ROC curve was 0.844, and the optimal cutoff value was 147.55.Our results showed that ICU-acquired hypernatremia may be a potential prognosis marker for critically neurological patients.
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Affiliation(s)
- Bei Hu
- Southern Medical University, Guangzhou
- Department of Emergency and Critical Care Medicine, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou
| | - Qianpeng Han
- Southern Medical University, Guangzhou
- Department of Emergency and Critical Care Medicine, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou
| | - Nashun Mengke
- Southern Medical University, Guangzhou
- Department of Emergency and Critical Care Medicine, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou
| | - Kairan He
- Department of Emergency and Critical Care Medicine, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou
| | - Yiqin Zhang
- Southern Medical University, Guangzhou
- Department of Emergency and Critical Care Medicine, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou
| | - Zhiqiang Nie
- Department of Cardiovascular Epidemiology, Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Hongke Zeng
- Southern Medical University, Guangzhou
- Department of Emergency and Critical Care Medicine, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou
- Correspondence: Hongke Zeng, Department of Emergency and Critical Care Medicine, Guangdong General Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, Guangdong 510080, China; Southern Medical University, 1063 Shatai Nan road, Guangzhou 510515, China (e-mail: )
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Risk Factors and Outcomes in Patients With Hypernatremia and Sepsis. Am J Med Sci 2016; 351:601-5. [PMID: 27238923 DOI: 10.1016/j.amjms.2016.01.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 11/16/2015] [Accepted: 01/06/2016] [Indexed: 11/22/2022]
Abstract
BACKGROUND Hypernatremia is an uncommon but important electrolyte abnormality in intensive care unit patients. Sepsis is one of the most common causes of intensive care unit admission, but few studies about the role of hypernatremia in sepsis has been published yet. In this study, we aimed to explore the risk factors for developing hypernatremia in patients with sepsis, and the prognosis of patients with sepsis with or without hypernatremia was also assessed. MATERIALS AND METHODS In this retrospective cohort study of 51 septic intensive care unit patients at a single center, we examined the risk factors for the development of hypernatremia and the association of hypernatremia with clinical outcomes using univariate and multivariable analyses. Clinical outcomes such as mortality and hospital duration of patients with or without hypernatremia were also compared. RESULTS Acute Physiology and Chronic Health Evaluation II score (odds ratio = 1.15; 95% CI: 1.022-1.294) was found to be the only independent risk factor for hypernatremia in patients with sepsis. Moreover, patients developing hypernatremia during hospitalization showed significantly higher morbidity and mortality. CONCLUSIONS Acute Physiology and Chronic Health Evaluation II score may be an independent risk factor for hypernatremia in patients with sepsis. Moreover, hypernatremia is strongly associated with worse outcome in sepsis.
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Bhasin B, Velez JCQ. Evaluation of Polyuria: The Roles of Solute Loading and Water Diuresis. Am J Kidney Dis 2016; 67:507-11. [DOI: 10.1053/j.ajkd.2015.10.021] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 10/06/2015] [Indexed: 11/11/2022]
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Liamis G, Filippatos TD, Elisaf MS. Evaluation and treatment of hypernatremia: a practical guide for physicians. Postgrad Med 2016; 128:299-306. [PMID: 26813151 DOI: 10.1080/00325481.2016.1147322] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hypernatremia (serum sodium concentration >145 mEq/L) is a common electrolyte disorder with increased morbidity and mortality especially in the elderly and critically ill patients. The review presents the main pathogenetic mechanisms of hypernatremia, provides specific directions for the evaluation of patients with increased sodium levels and describes a detailed algorithm for the proper correction of hypernatremia. Furthermore, two representative cases of hypovolemic and hypervolemic hypernatremia are presented along with practical clues for their proper evaluation and treatment. Accurate diagnosis and appropriate treatment is crucial since undercorrection or overcorrection of hypernatremia are both associated with poor patients' prognosis.
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Affiliation(s)
- George Liamis
- a Department of Internal Medicine , School of Medicine, University of Ioannina , Ioannina , Greece
| | - Theodosios D Filippatos
- a Department of Internal Medicine , School of Medicine, University of Ioannina , Ioannina , Greece
| | - Moses S Elisaf
- a Department of Internal Medicine , School of Medicine, University of Ioannina , Ioannina , Greece
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Ryuge A, Matsui K, Shibagaki Y. Hyponatremic Chloride-depletion Metabolic Alkalosis Successfully Treated with High Cation-gap Amino Acid. Intern Med 2016; 55:1765-7. [PMID: 27374680 DOI: 10.2169/internalmedicine.55.6356] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Chloride (Cl)-depletion alkalosis (CDA) develops due to the loss of Cl-rich body fluid, i.e., vomiting or diuretics use, and is typically treated with a chloride-rich solution such as normal saline (NS). Although NS is one of the most utilized Cl-rich solutions, high cation-gap amino acid (HCG-AA) predominantly comprises Cl and less sodium, making HCG-AA more efficient in correcting CDA. We herein report a case of CDA with chronic hyponatremia after frequent vomiting, which was successfully treated with HCG-AA without overcorrecting hyponatremia or causing hypervolemia. HCG-AA may be more beneficial than NS for treating hyponatremic or hypervolemic metabolic alkalosis.
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Affiliation(s)
- Akihiro Ryuge
- Department of Nephrology and Hypertension, St. Marianna University School of Medicine, Japan
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Norgan AP, Sarfani S, Kautz JM. 53-Year-Old Man With Hypernatremia and Encephalopathy. Mayo Clin Proc 2015; 90:824-7. [PMID: 26046415 DOI: 10.1016/j.mayocp.2014.10.021] [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: 07/31/2014] [Revised: 10/02/2014] [Accepted: 10/15/2014] [Indexed: 11/20/2022]
Affiliation(s)
- Andrew P Norgan
- Resident in Internal Medicine, Mayo School of Graduate Medical Education, Rochester, MN
| | | | - Jordan M Kautz
- Advisor to resident and medical student and Consultant in General Internal Medicine, Mayo Clinic, Rochester, MN.
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Greenberg JH, Tufro A, Marsenic O. Approach to the Treatment of the Infant With Hyponatremia. Am J Kidney Dis 2015; 65:513-7. [DOI: 10.1053/j.ajkd.2014.10.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 10/02/2014] [Indexed: 11/11/2022]
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VAN DE LOUW A, SHAFFER C, SCHAEFER E. Early intensive care unit-acquired hypernatremia in severe sepsis patients receiving 0.9% saline fluid resuscitation. Acta Anaesthesiol Scand 2014; 58:1007-14. [PMID: 25039806 DOI: 10.1111/aas.12368] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2014] [Indexed: 12/15/2022]
Abstract
BACKGROUND Intensive care unit (ICU)-acquired hypernatremia is associated with increased mortality and ascribed to excessive sodium/insufficient free water intakes. We aimed to determine whether the volume of intravenous 0.9% saline fluid resuscitation was associated with hypernatremia in severe sepsis. METHODS We retrospectively reviewed the charts of patients admitted to our medical ICU over 1 year with severe sepsis, and recorded all fluid intakes and plasma sodium levels (Nap ) for 5 days along with clinical data. ΔNap was defined as the difference between maximal Nap reached and initial Nap . Hypernatremia was defined as Nap > 145 mmoles/l. RESULTS Among 95 patients with severe sepsis, 29 developed hypernatremia within 5 days (31%), reaching a maximum Nap of 149.1 ± 2.5 mmoles/l on average 3.8 ± 1.5 days after admission. For every 50-ml/kg increase in 0.9% saline intake for the first 48 h, the odds of hypernatremia were 1.61 times larger [confidence interval (CI): 0.98-2.62; P = 0.06] and the mean of ΔNap increased by 1.86 mmoles/l (CI: 0.86-2.86; P < 0.001). Compared with non-hypernatremic patients, hypernatremic patients received more 0.9% saline within the first 48 h (111 ± 50 ml/kg vs. 92 ± 42 ml/kg, P < 0.05) and more other fluids from 48 to 96 h (64 ± 38 ml/kg vs. 42 ± 24 ml/kg, P < 0.05). Patients developing hypernatremia had increased length of mechanical ventilation (12.0 ± 12.6 vs. 9.1 ± 7.2 days, P < 0.05) and ICU mortality (38.5% vs. 13%, P < 0.01). CONCLUSIONS Early acquired hypernatremia is a frequent complication in severe sepsis patients and is associated with the volume of 0.9% saline received during the first 48 h of admission.
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Affiliation(s)
- A. VAN DE LOUW
- Division of Pulmonary and Critical Care Medicine; Penn State University College of Medicine; Hershey PA USA
| | - C. SHAFFER
- Division of Pulmonary and Critical Care Medicine; Penn State University College of Medicine; Hershey PA USA
| | - E. SCHAEFER
- Department of Public Health Sciences; Penn State University College of Medicine; Hershey PA USA
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Toor MR, Singla A, DeVita MV, Rosenstock JL, Michelis MF. Characteristics, therapies, and factors influencing outcomes of hospitalized hypernatremic geriatric patients. Int Urol Nephrol 2014; 46:1589-94. [PMID: 24817519 DOI: 10.1007/s11255-014-0721-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 04/21/2014] [Indexed: 12/20/2022]
Abstract
PURPOSE Hypernatremia is a common electrolyte disorder associated with adverse outcomes such as increased length of stay and mortality due to a variety of factors. Our aim was to investigate known factors as well as other variables which we had identified in hospitalized hypernatremic geriatric patients and their relationship to patient outcomes. METHODS A retrospective chart review of all adult hospitalized patients in a 4-month period with a serum sodium level >150 mmol/L was performed. Factors evaluated included use of a nephrology consultation, certain urine laboratory measures, fluids employed, rate of correction, and patient's level of care setting. Outcome measures included length of stay and mortality. RESULTS The patient mortality rate was 52 %. Mean age was 79.6 years (n = 33), and mean initial sodium level was 152.6 mmol/L. Plasma and urine osmolality, and urine sodium concentration were checked in less than 25 % of patients. Fifteen of 18 patients in the ICU expired, whereas only 2 of 15 patients not in the ICU expired (p < 0.0004, OR 32.50, CI 95 % (4.68-225.54)). Of the 23 patients (70 %) who had their serum sodium level corrected, 11 were corrected in ≤3 days and 12 in >3 days, but this difference did not affect mortality rate (45 vs. 50 %, p = 0.99). The mortality rate was similar (60 %, p = 0.52) for those whose serum sodium level never corrected suggesting that correction did not influence outcomes. The fluids chosen for therapy of the hypernatremia were appropriate to the patients volume status. Five of 15 patients who received a nephrology consultation survived, while 11 of 18 patients without a nephrology consultation survived (p = 0.12). The mean length of stay was 25.0 ± 23.9 days and no different for those who expired versus those who survived (25.2 ± 21.2 vs. 24.8 ± 25.9 days, p = 0.96). CONCLUSIONS Hypernatremia is associated with a poor prognosis, and outcomes are still disappointing despite appropriate rates of correction, intensive monitoring, and the involvement of a nephrologist. Strategies directed at avoidance of the development of hypernatremia and attention to concomitant disease may provide significant patient benefit.
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Affiliation(s)
- Muhammad R Toor
- Nephrology, Lenox Hill Hospital, 100 East 77th Street, New York, NY, 10075, USA,
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Nagler EV, Haller MC, Van Biesen W, Vanholder R, Craig JC, Webster AC. Interventions for chronic non-hypovolaemic hypotonic hyponatraemia. Hippokratia 2014. [DOI: 10.1002/14651858.cd010965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Evi V Nagler
- University Hospital Ghent; Renal Division, Department of Internal Medicine; De Pintelaan 185 Ghent Belgium 9000
- European Renal Best Practice (ERBP), guidance issuing body of the European Renal Association - European Dialysis and Transplant Association (ERA-EDTA); Ghent Belgium
| | - Maria C Haller
- European Renal Best Practice (ERBP), guidance issuing body of the European Renal Association - European Dialysis and Transplant Association (ERA-EDTA); Ghent Belgium
- Krankenhaus Elisabethinen Linz; Department for Internal Medicine III, Nephrology & Hypertension Diseases, Transplantation Medicine & Rheumatology; Fadingerstrasse 1 Linz Austria 4040
| | - Wim Van Biesen
- University Hospital Ghent; Renal Division, Department of Internal Medicine; De Pintelaan 185 Ghent Belgium 9000
- guidance issuing body of the European Renal Association - European Dialysis and Transplant Association (ERA-EDTA); European Renal Best Practice (ERBP); Ghent Belgium
| | - Raymond Vanholder
- University Hospital Ghent; Renal Division, Department of Internal Medicine; De Pintelaan 185 Ghent Belgium 9000
- European Renal Best Practice (ERBP), guidance issuing body of the European Renal Association - European Dialysis and Transplant Association (ERA-EDTA); Ghent Belgium
| | - Jonathan C Craig
- The University of Sydney; Sydney School of Public Health; Edward Ford Building A27 Sydney NSW Australia 2006
- The Children's Hospital at Westmead; Cochrane Renal Group, Centre for Kidney Research; Westmead NSW Australia 2145
| | - Angela C Webster
- The University of Sydney; Sydney School of Public Health; Edward Ford Building A27 Sydney NSW Australia 2006
- The Children's Hospital at Westmead; Cochrane Renal Group, Centre for Kidney Research; Westmead NSW Australia 2145
- The University of Sydney at Westmead; Centre for Transplant and Renal Research, Westmead Millennium Institute; Westmead NSW Australia 2145
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Anderson A, Barrett EJ. Severe hypernatremia from a urea-induced diuresis due to body protein wasting in an insulin-resistant type 2 diabetic patient. J Clin Endocrinol Metab 2013; 98:1800-2. [PMID: 23493436 PMCID: PMC5393463 DOI: 10.1210/jc.2012-3225] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Hypernatremia is encountered after pituitary or hypothalamic surgery and typically is secondary to vasopressin deficiency resulting in increased free water clearance with inadequate water replacement. OBJECTIVE We report a type 2 diabetic patient with severe hypernatremia (Na⁺ = 161 mEq/L) after hypothalamic surgery. Unexpectedly, this was accompanied by persistent urinary hypertonicity and negative total but positive electrolyte free water clearance. MAIN OUTCOME MEASURE Measurement of urinary electrolytes and urea revealed that an osmotic diuresis induced by urea derived principally by breakdown of endogenous protein was causative. Body protein losses over 48 hours were estimated to exceed 2 kg of lean mass. High-dose glucocorticoid, insulin resistance, and a postsurgical catabolic stress likely contributed. CONCLUSION In surgically severely stressed individuals, proteolysis of endogenous protein can strongly impact body water metabolism and contribute to severe hypernatremia.
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Affiliation(s)
- Amy Anderson
- Division of Endocrinology, Department of Medicine, University of Virginia, School of Medicine, Charlottesville, Virginia 22908, USA
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