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  • Title: A comparison of hysterosalpingo-foam sonography (HyFoSy) and hysterosalpingo-contrast sonography with saline medium (HyCoSy) in the assessment of tubal patency.
    Author: Lim SL, Jung JJ, Yu SL, Rajesh H.
    Journal: Eur J Obstet Gynecol Reprod Biol; 2015 Dec; 195():168-172. PubMed ID: 26547487.
    Abstract:
    OBJECTIVE: A randomized controlled selective cross-over trial was performed to compare the diagnostic yield and efficacy of ExEm foam (HyFoSy) with saline medium (HyCoSy) as a contrast agent for hysterosalping-contrast sonography in subfertile patients. STUDY DESIGN: 40 patients were randomized into HyCoSy with saline medium and HyFoSy with ExEm foam. Tubal patency were assessed according to pre-determined objective criteria that classified tubes based on degree of certainty in tubal patency. Selective cross-over testing with the other medium was performed in patients who had at least one possibly occluded or unexaminable tube on the initial test. RESULTS: 80 tubes were evaluated. On initial testing, the proportion of tubes that were classified as patent was higher with HyFoSy compared to HyCoSy (70.0% vs 40.0%, p=0.01). A higher proportion of patients in the HyCoSy group required crossover testing [80.0% (16/20) vs 45.0% (9/20), p=0.02]. On cross-over testing, 41.7% (10/24) of possibly occluded or unexaminable tubes in the HyCoSy group were re-classified as patent when examined with Ex-Em foam, compared to 8.3% (1/12) of possibly occluded or unexaminable tubes in the HyFoSy group (p=0.03). CONCLUSION: ExEm foam medium (HyFoSy) might improve the diagnostic yield and efficacy over saline medium (HyCoSy) for hysterosalpingsonography.
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