The Volume Status among Hyponatremic admitted Patients

Assessment of Volume Status in Hyponatremic Patients in Tertiary Care Hospital

Authors

  • Shoukat Memon Indus Hospital and Health Network karachi

DOI:

https://doi.org/10.53778/pjkd83268

Keywords:

Hypovolemia, Hyponatremia, Urinary sodium, Volume Status

Abstract

 Introduction: The kidneys play a vital role in the management of hyponatremic patients with fluid disturbances. This task becomes  more challenging in presence of comorbidities like chronic kidney disease or congestive heart failure. Accurate assessment of volume status and urinary sodium excretion is essential part for the correct management.. Both impaired renal function and compromised left ventricular function complicate the accurate evaluation of a patient's fluid status.

Method: This cross-sectional prospective study was conducted over 262 adult patients  with hyponatremia at The Indus Hospital, Karachi from 2017 to 2020. The patient's volume status at the time of enrollment was categorized as normovolemic, hypovolemic, or hypervolemic based on clinical examination. Spot urine sodium, chloride, potassium, urine and serum osmolality, serum urea, and Random blood sugar were all done.

Results: There was a total of 262 patients in which 123 (46.9%) were male and 139 (53.1%) were female. The mean age was 54.1 ± 16.4 years. The overall comorbid burden was high 227(86.64%), in which hypertension and CKD contributed more.

Out of 262 patients, half of them suffered from hypovolemia 131(50%). Spot urine sodium (>20 meq) was found in 219(83.58/%) patients, in which predominant volume status was hypovolemia 104(47.5%). Moreover, among those who could not survive were 28 (10.7%), in which hypovolemia contributed more than other volume status 12(42.85%).

Conclusion: Hypovolemia came out to be the predominant volume status among hyponatremic patients with high comorbid burden. Majority excreted more sodium in spot urine sample despite of hypovolemia in majority.

References

Frontera JA, Valdes E, Huang J, Lewis A, Lord AS, Zhou T, Kahn DE, Melmed K, Czeisler BM, Yaghi S, Scher E. Prevalence and impact of hyponatremia in patients with coronavirus disease 2019 in New York City. Critical care medicine. 2020 Sep 1.

Asadollahi K, Beeching N, Gill G. Hyponatraemia as a risk factor for hospital mortality. Journal of the Association of Physicians. 2006 Dec 1;99(12):877-80.

Ravel VA, Streja E, Mehrotra R, Sim JJ, Harley K, Ayus JC, Amin AN, Brunelli SM, Kovesdy CP, Kalantar-Zadeh K, Rhee CM. Serum sodium and mortality in a national peritoneal dialysis cohort. Nephrology Dialysis Transplantation. 2017 Jul 1;32(7):1224-33.

Rhee CM, Ravel VA, Ayus JC, Sim JJ, Streja E, Mehrotra R, Amin AN, Nguyen DV, Brunelli SM, Kovesdy CP, Kalantar-Zadeh K. Pre-dialysis serum sodium and mortality in a national incident hemodialysis cohort. Nephrology Dialysis Transplantation. 2016 Jun 1;31(6):992-1001.

Schrier RW. Diagnostic value of urinary sodium, chloride, urea, and flow. Journal of the American Society of Nephrology. 2011 Sep 1;22(9):1610-3.

McGee S, Abernethy III WB, Simel DL. Is this patient hypovolemic?. Jama. 1999 Mar 17;281(11):1022-

Cumming K, Hoyle GE, Hutchison JD, Soiza RL. Prevalence, incidence and etiology of hyponatremia in elderly patients with fragility fractures. PloS one. 2014 Feb 5;9(2):e88272.

Zhang R, Wang S, Zhang M, Cui L. Hyponatremia in patients with chronic kidney disease. Hemodialysis International. 2017 Jan;21(1):3-10.

Chen TK, Knicely DH, Grams ME. Chronic kidney disease diagnosis and management: a review. Jama. 2019 Oct 1;322(13):1294-304.

Hung SC, Kuo KL, Peng CH, Wu CH, Lien YC, Wang YC, Tarng DC. Volume overload correlates with cardiovascular risk factors in patients with chronic kidney disease. Kidney international. 2014 Mar 1;85(3):703-9.

Sahay M, Sahay R. Hyponatremia: A practical approach. Indian journal of endocrinology and metabolism. 2014 Nov;18(6):760.

Zhang R, Wang S, Zhang M, Cui L. Hyponatremia in patients with chronic kidney disease. Hemodialysis International. 2017 Jan;21(1):3-10.

Overgaard-Steensen C, Larsson A, Bluhme H, Tønnesen E, Frøkiaer J, Ring T. Edelman's equation is valid in acute hyponatremia in a porcine model: plasma sodium concentration is determined by external balances of water and cations. Am J Physiol RegulIntegr Comp Physiol. 2010 Jan;298(1):R120-9.

Kitiwan BK, Vasunilashorn SM, Baer HJ, Mukamal K, Juraschek SP. The association of urine osmolality with decreased kidney function and/or albuminuria in the United States. BMC nephrology. 2021 Dec;22:1-1.

Sands JM. Regulation of urea transporter proteins in kidney and liver. The Mount Sinai journal of medicine, New York. 2000 Mar 1;67(2):112-9.

Chakraverty R, Samanta K, Mandal P, Karmakar S. Mechanism of action of diuretic and anti-diuretic drugs. InHow Synthetic Drugs Work 2023 Jan 1 (pp. 369-390). Academic Press.

Arima H, Barzi F, Chalmers J. Mortality patterns in hypertension. Journal of hypertension. 2011 Dec 1;29:S3-7.

Adamczak M, Surma S, Więcek A. Hyponatremia in patients with arterial hypertension: pathophysiology and management. Archives of Medical Science: AMS. 2023;19(6):1630.

Horowitz B, Miskulin D, Zager P. Epidemiology of hypertension in CKD. Advances in chronic kidney disease. 2015 Mar 1;22(2):88-95.

Tonelli M, Wiebe N, Culleton B, House A, Rabbat C, Fok M, McAlister F, Garg AX. Chronic kidney disease and mortality risk: a systematic review. J Am Soc Nephrol. 2006;17:2034–2047.

Farmakis D, Filippatos G, Parissis J, Kremastinos DT, Gheorghiade M. Hyponatremia in heart failure. Heart failure reviews. 2009 Jun 1;14(2):5920.

Oren RM. Hyponatremia in congestive heart failure. The American journal of cardiology. 2005 May 2;95(9):2-7.

Ahmad F, Hadi A, Iqbal MA, ullah Khan I, Adnan Y, Haq MR, Ahmad S, Hafizullah M. Frequency of hyponatremia and in-hospital clinical outcomes in these patients hospitalized for heart failure. Journal of Postgraduate Medical Institute (Peshawar-Pakistan). 2014;28(4).

Kumar S, Rubin S, Mather PJ, Whellan DJ. Hyponatremia and vasopressin antagonism in congestive heart failure. Clinical Cardiology: An International Indexed and Peer‐Reviewed Journal for Advances in the Treatment of Cardiovascular Disease. 2007 Nov;30(11):546-51.

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Published

2024-09-29