Objective: To determine the frequency of hyponatremic complications and fluid overload during hystroscopic surgery.
Design and setting:A prospective study in a tertiary care facility.
Materials and methods: The study included 60 women who were scheduled for operative hysteroscopy for a variety of indications using the conventional unipolar electrosurgical device. Fluid intra vasation into the patients circulation was carefully monitored during the entire procedure. Biochemical assay of sodium level at the start and every 5 minutes during the procedure and 1,3 and 6 hours postoperatively was done. single linear regression was used to assess the association between the fall in serum sodium and other parameters.
Results A fall in serum sodium concentration occured in 90% of the cases with variable degrees and the mean amount of fluid deficit was 701+345ml. the statistically significant decline in serum sodium was directly correlated with the fluid deficit.