Matej Vnučák, Simona Horná, Renáta Michalová ml., Margita Belicová, Marián Mokáň
We classify hyponatraemia as a condition, when the plasmatic natrium level is below the lower norm (according to European
society it is classified with the plasmatic level lower than 135 mmol/L) and presents a therapeutical challenge
in patients with acute decompensated heart failure - a simple substitution is not possible due to its delicate balance of
electrolytes with increased intravascular volume and subsequent deepening of decompensation. In the following article
we present a case study of a 79-year old polymorbid patient hospitalized at the 1st Internal Clinic of Jessenius Faculty
of Medicine and University Hospital Martin with a a concomitant diagnosis of decompensated heart failure and hyponatraemia
of a severe grade without evident symptomatology.