[Does hyponatremia predict post-transurethral resection of the prostate syndrome?]

The florid post-TUR syndrome observed in one of our patients prompted us to conduct a prospective study on 100 males undergoing TUR to determine the natremia levels that could herald the presentation of this syndrome. Several parameters were evaluated, including pre- and post-operative serum sodium levels, total volume of irrigant used, and the weight of the resected prostate. Although the natremia levels dropped significantly in 4 patients, only the patient who had motivated this study developed symptoms and evidently no conclusions can be drawn on the basis of a single observation.