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CompletedNCT02012660Updated Apr 29, 2015

Relationship Between Heat Wave and Hyponatremia

An observational study in Hyponatremia, sponsored by University Hospital, Geneva. Completed at 1 site in Switzerland. Open to participants aged 16 Years and older. Per ClinicalTrials.gov, last updated 2015-04-29.

Sponsored by University Hospital, Geneva · Observational

Study type
Observational
Time perspective
Retrospective
Enrollment
28,734
Ages
16 Years and older
Sex
All
01

Study summary

The objective of this study is to explore the relationship between moderate to severe hyponatremia and heat.

Read the detailed description

We will explore the relationship between heat wave and moderate and severe hyponatremia in a population of adult patients admitted in the emergency department of a primary and tertiary care teaching urban hospital. We will compare the prevalence of hyponatremia between summer and winter periods. We will describe the types of observed hyponatremia and describe the characteristics of the patients suffering of moderate to severe hyponatremia.

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Conditions studied

  • Hyponatremia

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03

In context

Hyponatremia

155 studies on the registry are indexed under Hyponatremia; 17 are open to participants now.

This study's enrollment of 28,734 is above the median of 180 across 57 observational studies indexed under Hyponatremia.

Browse Hyponatremia studies →

Lead sponsor

University Hospital, Geneva is the lead sponsor of 372 studies on the registry; 68 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
16 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Adults admitted to the emergency departement of a primary and tertiary care teaching hospital

Inclusion criteria

  • all adults (> 16 y) with blood natremia measured

Exclusion criteria

Exclusion Criteria:

  • Patients without measure of natremia in the emergency department
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Study design

Time perspective
Retrospective
Enrollment
28,734 participants (actual)
Patient registry
No

Groups and cohorts

  • Hyponatremia, seasonality

    Summer months = June, July, August Winter months = December, January, February

    Other: Seasonality

Interventions

  • OtherSeasonality

    The impact of high temperature during summer months on the prevalence of hyponatremia will be explores.

    Also known as: Summer = June, July, August, Winter = December, January, February

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What researchers measure

Primary outcomes

  1. Number of patients with moderate to severe hyponatremia

    Moderate to severe hyponatremia is defined as Sodium blood levels \< 125 mmol/L

    Time frame: Natremia measured at admission in the ED

Secondary outcomes

  1. Mortality

    Time frame: December 2011 to August 2013

  2. Hospital length of stay

    Time frame: December 2011 to August 2013

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Study locations

1 site
  • Geneva University
    Geneva, 1200, Switzerland
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 29, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02012660
Lead sponsor
University Hospital, Geneva
Responsible party
Olivier T. Rutschmann (MD, University Hospital, Geneva) — Principal investigator
First posted
Dec 16, 2013
Start date
Feb 2014
Primary completion
Apr 2015
Completion
Apr 2015
Last update
Apr 29, 2015

Study contacts

Olivier T Rutschmann, MD, MPH
principal investigator · University Hospital, Geneva

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2015. You cannot join it, but the record below documents what was studied.

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