Abstract
ABSTRACT
Four cases of severe hyponatremia occurring during operative hysteroscopy and resulting in a 50% death rate are presented. Either glycine 1.5% or sorbitol 3% was used for uterine irrigation in each circumstance. Although careful monitoring of fluid intake and output is important, more precise methods of tracking medium intrusion into the vascular space may be required. Serial serum sodium, central venous pressure, and plasma osmolality determinations are recommended to establish a timely diagnosis of hyponatremia and hypoosmolality. Rapid and aggressive management of significant hyponatremia (Na < 120 mmol/liter) should be instituted using 3%-5% sodium chloride solution and furosemide to attain the goal of elevating serum sodium to 130–135 mmol/liter with 24 h. Young women appear to be more susceptible to the sequelae of postoperative hyponatremia, e.g., cerebral edema, than are their male counterparts because of efficiency differences in their cerebral sodium pump function. Liquid distending media with osmolalities in the range of 280 mOsm/liter would offer a greater margin of patient safety than either sorbitol or glycine for operative hysteroscopy. (J GYNECOL SURG 9:137, 1993)
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