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Contribution à l'étude du rôle de l’hyponatrémie légère et chronique dans la survenue de la chute grave du sujet âgé fragile admis en unité de Médecine d'Urgence de la Personne Agée (MUPA)

Abstract : Falls are a precursor to the loss of autonomy and represent a major public health problem. Falls involve multiple factors determining the risk of falling. A better knowledge of the risk factors of falls is important in order to prevent falls as well as loss of autonomy in the elderly. Among these risk factors, biological factors are poorly studied. Better knowing these biological factors would better guide the etiological diagnosis of the fall and therefore target personalized preventive actions and define environmental interventions (physical activity, nutritional counseling) or medical, to prevent the risk of falling and the loss of autonomy. Hyponatremia is the most common electrolyte disorder in geriatric practice. It is defined by a serum Na concentration of less than 136 mmol/L. Hyponatremia can be divided into 3 stages: mild chronic hyponatremia, moderate hyponatremia, and severe hyponatremia. Recent studies have shown that mild chronic hyponatremia may present significant clinical signs in patients and may be associated with impaired cognitive functions, gait disturbances and even fractures. What is the prevalence of mild chronic hyponatremia in patients admitted to MUPA unit? What is the association between mild chronic hyponatremia and falls in our population? Prevalence of mild chronic hyponatremia is particularly high at MUPA unit. Patients admitted to MUPA unit with mild chronic hyponatremia at the first blood test performed on arrival have a higher risk of serious falls. Mild chronic hyponatremia may be considered as a risk factor for serious falls in the elderly
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Sophie Boyer. Contribution à l'étude du rôle de l’hyponatrémie légère et chronique dans la survenue de la chute grave du sujet âgé fragile admis en unité de Médecine d'Urgence de la Personne Agée (MUPA). Médecine humaine et pathologie. Université de Limoges, 2018. Français. ⟨NNT : 2018LIMO0067⟩. ⟨tel-02411568v2⟩

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