Aspectos prácticos para la clasificación, diagnóstico y manejo de hiponatremia en el paciente hospitalizado / Practical aspects for the classification and management of hyponatremia in the hospitalized patient

Resumen La hiponatremia es el trastorno hidroelectrolítico más frecuente observado en pacientes hospitalizados y es importante resaltar que se ha asociado a morbilidad y mortalidad de estos. Esta entidad representa un proceso fisiopatológico relacionado con una alteración en la homeostasis del agua, en la cual los pacientes presentan síntomas en su mayoría neurológicos, que se correlacionan con el nivel de sodio y el tiempo de aparición del trastorno. Se realizó una búsqueda en las bases de datos PubMed y Lilacs de monografías, artículos de revisión y artículos originales con el objetivo de revisar aspectos sobre la clínica, diagnóstico y manejo de la entidad. Para el diagnóstico, la batería de estudios se solicita en función del contexto clínico, actuando temprano y permitiendo la corrección del trastorno de acuerdo al escenario respectivo. La hiponatremia es un problema médico frecuente que bajo un abordaje práctico y sencillo permite tomar decisiones clínicas de forma oportuna. MÉD.UIS. 2020;33(2):85-93.

Abstract Hyponatremia is the most frequent hydroelectrolytic disorder observed in hospitalized patients and it is important to note that it has been associated with morbidity and mortality in this patients. This entity represents a pathophysiological process related to an alteration in water homeostasis, in which patients present symptoms mostly neurological, that correlate with the sodium level and the time of onset of the disorder. A search of the PubMed and Lilacs databases of monographies, review articles and originals articles was performed with the objective to review clinical, diagnostic and management aspects of this entity. For diagnosis, the clinical laboratory studies are requested depending on the clinical context, acting early and allowing correction of the disorder according to the respective scenario. Hyponatremia is a frequent medical problem that requires a practical and simple approach favoring clinical decisions in a timely manner. MÉD.UIS. 2020;33(2):85-93.

[Acute myocardial infarction without obstructive coronary disease secondary to thyrotoxicosis due to toxic multinodular goiter]. / Infarto agudo de miocardio sin enfermedad coronaria obstructiva secundario a tirotoxicosis por bocio multinodular tóxico.

Acute myocardial infarction in the absence of obstructive coronary artery disease (MINOCA) represents a diagnostic challenge in clinical practice. Documentation of an ischemic substrate is necessary for its diagnostic approach, with a treatment that must be specific according to the identified etiology. A group of these patients presents ischemia secondary to an alteration in the oxygen supply/demand ratio. We present the case of a female adult patient, with severe hyperthyroidism and thyrotoxicosis, who develops an acute coronary syndrome, with elevated troponin T and normal coronary arteries on coronariography. Treatment was aimed at treating the triggering cause, initially pharmacologically and later surgically, with a total resolution of the condition, symptomatic improvement in the patient, and a decrease in cardiac biomarkers.