Changes in Serum Creatinine Levels Can Help Distinguish Hypovolemic From Euvolemic Hyponatremia

NCT ID: NCT04744987

Last Updated: 2022-08-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

122 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-07-30

Study Completion Date

2020-10-30

Brief Summary

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Retrospective study that analyzes the changes in serum creatinine as a tool to correctly classify the volemic status volemic status (euvolemia vs hypovolemia) of the patients with hyponatremia.

Detailed Description

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This study evaluates the usefulness of the changes in serum creatinine in differentiating between euvolemia and hypovolemia in hyponatremic patients. Changes in serum creatinine were retrospectively analyzed . The latter was calculated subtracting the serum creatinine value of eunatremia from that of hyponatremia, and was categorized as an increase when it was "positive", or "decrease/no change" when it was negative or equal to zero. The percentual change in serum creatinine was also calculated.

Two groups of patients were selected for the current study. First group was conformed by patients with hypovolemic hyponatremia, and second group by patients with euvolemic hyponatremia. Data from eunatremia as well as the hyponatremic episode were collected. Both groups were matched in Receiver operating characteristic curve analyzes where both arithmetical and percentual changes in serum creatinine were assessed and cut-off points were selected for an additional Odd Ratio analysis.

Conditions

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Hyponatremia Hypovolemia SIADH

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

RETROSPECTIVE

Study Groups

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Hypovolemic hyponatremia

Patients with any cause of hypovolemic hyponatremia were included.

No interventions assigned to this group

Euvolemic hyponatremia

Only patients with euvolemic hyponatremia secondary to Syndrome of inappropriate antidiuresis were included.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Patients with hypovolemic hyponatremia secondary to any cause
* Patients with euvolemic hyponatremia caused by Syndrome of inappropriate antidiuresis
* Complete clinical volemia assessment during hyponatremia.
* Presence of serum creatinine measured in eunatremia as well as in hyponatremic episodes.

Exclusion Criteria

* Pregnants.
* Patients with a prior history of diabetes, advanced chronic kidney disease (glomerular filtrate rate below 30 ml/min), cirrhosis, or heart failure were excluded.
* Patients with hypervolemic hyponatremia.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hospital San Carlos, Madrid

OTHER

Sponsor Role lead

Responsible Party

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Jorge Gabriel Ruiz Sánchez

Principal investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Isabelle Runkle, MDPhD

Role: STUDY_DIRECTOR

Hospital San Carlos, Madrid

Jorge G Ruiz, MD

Role: PRINCIPAL_INVESTIGATOR

Hospital San Carlos, Madrid

Locations

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Servicio de Endocrinología y Nutrición. Hospital Clínico San Carlos

Madrid, , Spain

Site Status

Countries

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Spain

References

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Ruiz-Sanchez JG, Meneses D, Alvarez-Escola C, Cuesta M, Calle-Pascual AL, Runkle I. The Effect of the Dose of Isotonic Saline on the Correction of Serum Sodium in the Treatment of Hypovolemic Hyponatremia. J Clin Med. 2020 Nov 5;9(11):3567. doi: 10.3390/jcm9113567.

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Other Identifiers

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creatinine-hyponatremia

Identifier Type: -

Identifier Source: org_study_id

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