Human reproduction
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Randomized Controlled Trial Clinical Trial
Carbon dioxide versus normal saline in outpatient hysteroscopy.
The aim of this prospective randomized study was to measure patients' discomfort after hysteroscopy with CO(2) or normal saline. ⋯ CO(2) and normal saline were comparable with regard to patient discomfort, but in terms of the high frequency of abnormal uterine bleeding, normal saline may be the most appropriate distension medium for outpatient hysteroscopy.