Hip fracture post-operation dysnatremia and Na+-courses in different cognitive and functional patient groups

Yichayaou Beloosesky, Avital Hershkovitz, Benyamin Solovey, Moshe Salai, Avraham Weiss

Research output: Contribution to journalArticlepeer-review

Abstract

The aim of the study was to investigate Na +-course of hip fracture patients in relation to demographic and clinical parameters. Data on 155 older hip fracture patients were analyzed retrospectively. Clinical parameters and serum Na + on admission (Na1), during 24h pre-op. (Na2), during 24h post-op. (Na3), and pre-discharge (Na4) were recorded. Hyponatremia and hypernatremia rates pre- and post-operation were 26.5%, 2.6%, 24.5% and 5.8%. Higher Na3 (138.76±4.4mEq/l) vs. Na1 (137.69±4.5mEq/l) (p=0.004) and correlation between age and Na3 (p=0.021) was found. Mean serum Na + of impaired mental status (IMS) vs. normal patients and of partially/independent vs. dependent patients were higher (p<0.05). More complications occurred in IMS patients tending to higher Na3 in patients with complications. No differences in Na +-courses were found according to sex or co-morbidities. Dysnatremia is highly prevalent in older hip fracture patients. A distinct post-operative increase in serum Na + was found, higher in the cognitively and functionally impaired patients. It seems that the Na + increase characterizes more IMS patients who suffer more complications, but does not necessarily indicate complications. We recommend surveillance of serum Na +, particularly in cognitively and functionally impaired older patients in whom the risk of hypernatremia and complications is higher.

Original languageEnglish
Pages (from-to)179-182
Number of pages4
JournalArchives of Gerontology and Geriatrics
Volume53
Issue number2
DOIs
StatePublished - Sep 2011

Keywords

  • Cognition and dysnatremia
  • Dysnatremia
  • Hip fracture
  • Older people

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