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Published in: Trials 1/2017

Open Access 01-12-2017 | Study protocol

Efficacy and safety of rapid intermittent correction compared with slow continuous correction with hypertonic saline in patients with moderately severe or severe symptomatic hyponatremia: study protocol for a randomized controlled trial (SALSA trial)

Authors: Anna Lee, You Hwan Jo, Kyuseok Kim, Soyeon Ahn, Yun Kyu Oh, Huijai Lee, Jonghwan Shin, Ho Jun Chin, Ki Young Na, Jung Bok Lee, Seon Ha Baek, Sejoong Kim

Published in: Trials | Issue 1/2017

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Abstract

Background

Hyponatremia is the most common electrolyte imbalance encountered in clinical practice, associated with increased mortality and length of hospital stay. However, no high-quality evidence regarding whether hypertonic saline is best administered as a continuous infusion or a bolus injection has been found to date. Therefore, in the current study, we will evaluate the efficacy and safety of rapid intermittent correction compared with slow continuous correction with hypertonic saline in patients with moderately severe or severe symptomatic hyponatremia.

Methods/design

This is a prospective, investigator-initiated, multicenter, open-label, randomized controlled study with two experimental therapy groups. A total of 178 patients with severe symptomatic hyponatremia will be enrolled and randomly assigned to receive either rapid intermittent bolus or slow continuous infusion management with hypertonic saline. The primary outcome is the incidence of overcorrection at any given period over 2 days. The secondary outcomes will include the efficacy and safety of two other approaches to the treatment of hyponatremia with 3% hypertonic saline.

Discussion

This is the first clinical trial to investigate the efficacy and safety of rapid intermittent correction compared with slow continuous correction with hypertonic saline in patients with moderately severe or severe hyponatremia.

Trial registration

ClinicalTrials.gov, identifier number: NCT02887469. Registered on 1 August 2016.
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Literature
1.
go back to reference Spasovski G, Vanholder R, Allolio B, Annane D, Ball S, Bichet D, et al. Clinical practice guideline on diagnosis and treatment of hyponatraemia. Eur J Endocrinol. 2014;170(3):G1–G47.CrossRefPubMed Spasovski G, Vanholder R, Allolio B, Annane D, Ball S, Bichet D, et al. Clinical practice guideline on diagnosis and treatment of hyponatraemia. Eur J Endocrinol. 2014;170(3):G1–G47.CrossRefPubMed
2.
go back to reference Decaux G. Is asymptomatic hyponatremia really asymptomatic? Am J Med. 2006;119(7 Suppl 1):S79–82.CrossRefPubMed Decaux G. Is asymptomatic hyponatremia really asymptomatic? Am J Med. 2006;119(7 Suppl 1):S79–82.CrossRefPubMed
3.
4.
go back to reference Kokko JP. Symptomatic hyponatremia with hypoxia is a medical emergency. Kidney Int. 2006;69(8):1291–3.CrossRefPubMed Kokko JP. Symptomatic hyponatremia with hypoxia is a medical emergency. Kidney Int. 2006;69(8):1291–3.CrossRefPubMed
5.
go back to reference Fujisawa H, Sugimura Y, Takagi H, Mizoguchi H, Takeuchi H, Izumida H, et al. Chronic hyponatremia causes neurologic and psychologic impairments. J Am Soc Nephrol. 2016;27(3):766–80.CrossRefPubMed Fujisawa H, Sugimura Y, Takagi H, Mizoguchi H, Takeuchi H, Izumida H, et al. Chronic hyponatremia causes neurologic and psychologic impairments. J Am Soc Nephrol. 2016;27(3):766–80.CrossRefPubMed
6.
go back to reference Tzamaloukas AH, Malhotra D, Rosen BH, Raj DS, Murata GH, Shapiro JI. Principles of management of severe hyponatremia. J Am Heart Assoc. 2013;2(1):e005199.CrossRefPubMedPubMedCentral Tzamaloukas AH, Malhotra D, Rosen BH, Raj DS, Murata GH, Shapiro JI. Principles of management of severe hyponatremia. J Am Heart Assoc. 2013;2(1):e005199.CrossRefPubMedPubMedCentral
7.
go back to reference Berl T. Treating hyponatremia: damned if we do and damned if we don’t. Kidney Int. 1990;37(3):1006–18.CrossRefPubMed Berl T. Treating hyponatremia: damned if we do and damned if we don’t. Kidney Int. 1990;37(3):1006–18.CrossRefPubMed
8.
go back to reference Sterns RH, Riggs JE, Schochet Jr SS. Osmotic demyelination syndrome following correction of hyponatremia. N Engl J Med. 1986;314(24):1535–42.CrossRefPubMed Sterns RH, Riggs JE, Schochet Jr SS. Osmotic demyelination syndrome following correction of hyponatremia. N Engl J Med. 1986;314(24):1535–42.CrossRefPubMed
9.
go back to reference Verbalis JG, Martinez AJ. Neurological and neuropathological sequelae of correction of chronic hyponatremia. Kidney Int. 1991;39(6):1274–82.CrossRefPubMed Verbalis JG, Martinez AJ. Neurological and neuropathological sequelae of correction of chronic hyponatremia. Kidney Int. 1991;39(6):1274–82.CrossRefPubMed
10.
go back to reference Mohmand HK, Issa D, Ahmad Z, Cappuccio JD, Kouides RW, Sterns RH. Hypertonic saline for hyponatremia: risk of inadvertent overcorrection. Clin J Am Soc Nephrol. 2007;2(6):1110–7.CrossRefPubMed Mohmand HK, Issa D, Ahmad Z, Cappuccio JD, Kouides RW, Sterns RH. Hypertonic saline for hyponatremia: risk of inadvertent overcorrection. Clin J Am Soc Nephrol. 2007;2(6):1110–7.CrossRefPubMed
12.
go back to reference Ayus JC, Krothapalli RK, Arieff AI. Treatment of symptomatic hyponatremia and its relation to brain damage. A prospective study. N Engl J Med. 1987;317(19):1190–5.CrossRefPubMed Ayus JC, Krothapalli RK, Arieff AI. Treatment of symptomatic hyponatremia and its relation to brain damage. A prospective study. N Engl J Med. 1987;317(19):1190–5.CrossRefPubMed
13.
go back to reference Hsu YJ, Chiu JS, Lu KC, Chau T, Lin SH. Biochemical and etiological characteristics of acute hyponatremia in the emergency department. J Emerg Med. 2005;29(4):369–74.CrossRefPubMed Hsu YJ, Chiu JS, Lu KC, Chau T, Lin SH. Biochemical and etiological characteristics of acute hyponatremia in the emergency department. J Emerg Med. 2005;29(4):369–74.CrossRefPubMed
14.
go back to reference Worthley LI, Thomas PD. Treatment of hyponatraemic seizures with intravenous 29.2% saline. Br Med J (Clin Res Ed). 1986;292(6514):168–70.CrossRef Worthley LI, Thomas PD. Treatment of hyponatraemic seizures with intravenous 29.2% saline. Br Med J (Clin Res Ed). 1986;292(6514):168–70.CrossRef
15.
go back to reference Verbalis JG, Goldsmith SR, Greenberg A, Korzelius C, Schrier RW, Sterns RH, et al. Diagnosis, evaluation, and treatment of hyponatremia: expert panel recommendations. Am J Med. 2013;126(10 Suppl 1):S1–S42.CrossRefPubMed Verbalis JG, Goldsmith SR, Greenberg A, Korzelius C, Schrier RW, Sterns RH, et al. Diagnosis, evaluation, and treatment of hyponatremia: expert panel recommendations. Am J Med. 2013;126(10 Suppl 1):S1–S42.CrossRefPubMed
16.
go back to reference Ball SG, Iqbal Z. Diagnosis and treatment of hyponatraemia. Best Pract Res Clin Endocrinol Metab. 2016;30(2):161–73.CrossRefPubMed Ball SG, Iqbal Z. Diagnosis and treatment of hyponatraemia. Best Pract Res Clin Endocrinol Metab. 2016;30(2):161–73.CrossRefPubMed
17.
18.
go back to reference Rogers IR, Hook G, Stuempfle KJ, Hoffman MD, Hew-Butler T. An intervention study of oral versus intravenous hypertonic saline administration in ultramarathon runners with exercise-associated hyponatremia: a preliminary randomized trial. Clin J Sport Med. 2011;21(3):200–3.CrossRefPubMed Rogers IR, Hook G, Stuempfle KJ, Hoffman MD, Hew-Butler T. An intervention study of oral versus intravenous hypertonic saline administration in ultramarathon runners with exercise-associated hyponatremia: a preliminary randomized trial. Clin J Sport Med. 2011;21(3):200–3.CrossRefPubMed
19.
go back to reference Ayus JC, Arieff A, Moritz ML. Hyponatremia in marathon runners. N Engl J Med. 2005;353(4):427–8. author reply 427-428.CrossRefPubMed Ayus JC, Arieff A, Moritz ML. Hyponatremia in marathon runners. N Engl J Med. 2005;353(4):427–8. author reply 427-428.CrossRefPubMed
20.
go back to reference Moritz ML, Ayus JC. 100 cc 3% sodium chloride bolus: a novel treatment for hyponatremic encephalopathy. Metab Brain Dis. 2010;25(1):91–6.CrossRefPubMed Moritz ML, Ayus JC. 100 cc 3% sodium chloride bolus: a novel treatment for hyponatremic encephalopathy. Metab Brain Dis. 2010;25(1):91–6.CrossRefPubMed
21.
go back to reference Moritz ML, Ayus JC. New aspects in the pathogenesis, prevention, and treatment of hyponatremic encephalopathy in children. Pediatr Nephrol. 2010;25(7):1225–38.CrossRefPubMed Moritz ML, Ayus JC. New aspects in the pathogenesis, prevention, and treatment of hyponatremic encephalopathy in children. Pediatr Nephrol. 2010;25(7):1225–38.CrossRefPubMed
22.
go back to reference Hew-Butler T, Ayus JC, Kipps C, Maughan RJ, Mettler S, Meeuwisse WH, et al. Statement of the Second International Exercise-Associated Hyponatremia Consensus Development Conference, New Zealand, 2007. Clin J Sport Med. 2008;18(2):111–21.CrossRefPubMed Hew-Butler T, Ayus JC, Kipps C, Maughan RJ, Mettler S, Meeuwisse WH, et al. Statement of the Second International Exercise-Associated Hyponatremia Consensus Development Conference, New Zealand, 2007. Clin J Sport Med. 2008;18(2):111–21.CrossRefPubMed
23.
go back to reference Moritz ML, Ayus JC. Hospital-acquired hyponatremia—why are hypotonic parenteral fluids still being used? Nat Clin Pract Nephrol. 2007;3(7):374–82.CrossRefPubMed Moritz ML, Ayus JC. Hospital-acquired hyponatremia—why are hypotonic parenteral fluids still being used? Nat Clin Pract Nephrol. 2007;3(7):374–82.CrossRefPubMed
24.
go back to reference Chan AW, Tetzlaff JM, Altman DG, Laupacis A, Gotzsche PC, Krleza-Jeric K, et al. SPIRIT 2013 statement: defining standard protocol items for clinical trials. Ann Intern Med. 2013;158(3):200–7.CrossRefPubMedPubMedCentral Chan AW, Tetzlaff JM, Altman DG, Laupacis A, Gotzsche PC, Krleza-Jeric K, et al. SPIRIT 2013 statement: defining standard protocol items for clinical trials. Ann Intern Med. 2013;158(3):200–7.CrossRefPubMedPubMedCentral
25.
go back to reference Hillier TA, Abbott RD, Barrett EJ. Hyponatremia: evaluating the correction factor for hyperglycemia. Am J Med. 1999;106(4):399–403.CrossRefPubMed Hillier TA, Abbott RD, Barrett EJ. Hyponatremia: evaluating the correction factor for hyperglycemia. Am J Med. 1999;106(4):399–403.CrossRefPubMed
26.
go back to reference Moritz ML, Ayus JC. The pathophysiology and treatment of hyponatraemic encephalopathy: an update. Nephrol Dial Transplant. 2003;18(12):2486–91.CrossRefPubMed Moritz ML, Ayus JC. The pathophysiology and treatment of hyponatraemic encephalopathy: an update. Nephrol Dial Transplant. 2003;18(12):2486–91.CrossRefPubMed
27.
go back to reference Rose BD, PT. Clinical physiology of acid-base and electrolyte disorders. 5th ed. New York: McGraw-Hill; 2001. Rose BD, PT. Clinical physiology of acid-base and electrolyte disorders. 5th ed. New York: McGraw-Hill; 2001.
28.
go back to reference Levey AS, Stevens LA, Schmid CH, Zhang YL, Castro 3rd AF, Feldman HI, et al. A new equation to estimate glomerular filtration rate. Ann Intern Med. 2009;150(9):604–12.CrossRefPubMedPubMedCentral Levey AS, Stevens LA, Schmid CH, Zhang YL, Castro 3rd AF, Feldman HI, et al. A new equation to estimate glomerular filtration rate. Ann Intern Med. 2009;150(9):604–12.CrossRefPubMedPubMedCentral
29.
go back to reference Ellison DH, Berl T. Clinical practice. The syndrome of inappropriate antidiuresis. N Engl J Med. 2007;356(20):2064–72.CrossRefPubMed Ellison DH, Berl T. Clinical practice. The syndrome of inappropriate antidiuresis. N Engl J Med. 2007;356(20):2064–72.CrossRefPubMed
30.
go back to reference Sterns RH, Cappuccio JD, Silver SM, Cohen EP. Neurologic sequelae after treatment of severe hyponatremia: a multicenter perspective. J Am Soc Nephrol. 1994;4(8):1522–30.PubMed Sterns RH, Cappuccio JD, Silver SM, Cohen EP. Neurologic sequelae after treatment of severe hyponatremia: a multicenter perspective. J Am Soc Nephrol. 1994;4(8):1522–30.PubMed
31.
go back to reference Cluitmans FH, Meinders AE. Management of severe hyponatremia: rapid or slow correction? Am J Med. 1990;88(2):161–6.CrossRefPubMed Cluitmans FH, Meinders AE. Management of severe hyponatremia: rapid or slow correction? Am J Med. 1990;88(2):161–6.CrossRefPubMed
33.
go back to reference Dellabarca C, Servilla KS, Hart B, Murata GH, Tzamaloukas AH. Osmotic myelinolysis following chronic hyponatremia corrected at an overall rate consistent with current recommendations. Int Urol Nephrol. 2005;37(1):171–3.CrossRefPubMed Dellabarca C, Servilla KS, Hart B, Murata GH, Tzamaloukas AH. Osmotic myelinolysis following chronic hyponatremia corrected at an overall rate consistent with current recommendations. Int Urol Nephrol. 2005;37(1):171–3.CrossRefPubMed
Metadata
Title
Efficacy and safety of rapid intermittent correction compared with slow continuous correction with hypertonic saline in patients with moderately severe or severe symptomatic hyponatremia: study protocol for a randomized controlled trial (SALSA trial)
Authors
Anna Lee
You Hwan Jo
Kyuseok Kim
Soyeon Ahn
Yun Kyu Oh
Huijai Lee
Jonghwan Shin
Ho Jun Chin
Ki Young Na
Jung Bok Lee
Seon Ha Baek
Sejoong Kim
Publication date
01-12-2017
Publisher
BioMed Central
Published in
Trials / Issue 1/2017
Electronic ISSN: 1745-6215
DOI
https://doi.org/10.1186/s13063-017-1865-z

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