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Minerva Psichiatrica 2008 September;49(3):185-9

Copyright © 2008 EDIZIONI MINERVA MEDICA

language: English

Role of serum potassium changes in anxiety assessment among patients undergoing elective abdominal surgery

Sadrolsadat S. H. 1, Shoroghi M. 2, Beharen K. 3, Farahbakhsh F. 4, Akhondzadeh S. 5, Sheikhvatan M. 6, Abbasi A. 6

1 Department of Anesthesia, Sina Hospital Tehran University, Tehran, Iran 2 Department of Anesthesia Razi Hospital, Medical Sciences University of Tehran, Tehran, Iran 3 Department of Anesthesia Ali-Ebn Abitaleb Hospital University of Rafsanjan, Rafsanjan, Iran 4 Department of Anaesthesia Jondishapoor Medical University, Ahvaz, Iran 5 Department of Psychiatrics Roozbeh Hospital, Medical Sciences University of Tehran, Tehran, Iran 6 Department of Cardiology Tehran Heart Center, Medical Sciences University of Tehran, Tehran, Iran


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Aim. Preoperative anxiety is a very common disease that adversely affects a patient’s physical and psychological outcome and depletion of potassium stores has a major role in this outcome. The aim of this study was to evaluate the impact of the anxiety on potassium changes in patients undergoing elective abdominal surgery.
Methods. One hundred patients undergoing various elective abdominal surgeries were enrolled in this study. Fifty patients were premedicated with 10 mg diazepam (oral) and midazolam (intramuscular), as case group and 50 patients received placebo (as control group) 24 hours before surgery. Serum potassium levels were evaluated using Hamilton Anxiety Scaling (HAMA) in all patients immediately and 24 hours before operation; diazepam and midazolam were administered to patients, and they were questioned about their anxiety levels immediately before induction of anesthesia.
Results. The mean of anxiety scale in the case group was statistically lower than in the placebo group (21.64±11.04 vs 29.78±9.37, P<0.0001). No statistically significant differences in the mean of baseline and final potassium levels between two groups were reported, whereas reduction in serum potassium level was higher in the control group (P<0.0001).
Conclusion. This study suggests that the measurement of serum potassium should be considered in the management of preoperative anxiety among patients undergoing surgical procedures.

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