• O Istre, K Skajaa, A P Schjoensby, and A Forman.
• Department of Obstetrics and Gynecology, Hamar County Hospital, Norway.
• Obstet Gynecol. 1992 Aug 1;80(2):218-22.

ObjectiveWe evaluated the postoperative changes in serum electrolytes in relation to the amount of irrigating fluid absorption and the occurrence of nausea and vomiting after transcervical resection of endometrium and submucous fibroids.MethodsFrom May 1989 to October 1991, 101 consecutive patients were operated on for menometrorrhagia with transcervical resection of endometrium and submucous fibroids using glycine 1.5% for uterine irrigation. The deficit of glycine was assessed during and at the end of the operation. During the postoperative course, attention was paid to the occurrence of cerebral confusion, nausea (defined by at least one incident of vomiting), and dyspnea. The serum levels of sodium, potassium, and chloride were assessed before the operation, at the end of the procedure, and after 4, 8, and 12 hours.ResultsNo marked water intoxication or signs of volume overload were seen, but 33% of the patients had nausea and vomiting in the postoperative period. These patients showed a more pronounced postoperative decrease in serum sodium (P = .0001) and a larger glycine deficit (P = .004) than did patients without nausea. The postoperative decrease in serum sodium correlated significantly to the glycine deficit (R2 = 0.83, P less than .001).ConclusionPostoperative hyponatremia after transcervical resection of the endometrium correlated with the deficit of irrigant fluid but not with the operation time or the total amount of irrigant fluid used. We recommend that serum sodium be controlled and corrected if necessary postoperatively in patients with nausea and vomiting.

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