STUDY OBJECTIVE: To investigate histologic structures of intrauterine septa resected hysteroscopically. DESIGN: Prospective, consecutive study (Canadian Task Force classification II-2). SETTING: University-affiliated hospital. PATIENTS: Seventy-six women evaluated for uterine septa and infertility. INTERVENTIONS: All patients with diagnosis of uterine septum detected by transvaginal color Doppler (TVCD) underwent operative hysteroscopy in which the most prominent part of the septum was encircled with a hysteroscopic loop electrode and removed. Specimens were sent for histopathologic evaluation. The rest of the septum was divided by monopolar needle electrode until the uterine cavity assumed a globular shape. MEASUREMENTS AND MAIN RESULTS: In 63 women (82.8%) preoperative TVCD revealed septal vascularity typical for radial arteries with mean resistance flow of 0.64 +/- 0.06, and enlarged sunusoidal and capillary spaces. Histopathologic results revealed fibromuscular tissue with moderately more connective tissue in 55 cases (72.3%) and myometrial tissue in 21 (27.6%). There was no statistically significant difference (p >0.05) in frequency of septa between patients with primary and secondary infertility. CONCLUSION: Intrauterine septa consisted of the same type of tissue as normal myometrium, with many muscular fibers. We suspect that muscular tissue within the uterine septum is a potential cause of irregular contractility and consequently increased abortion rate in these patients. (J Am Assoc Gynecol Laparosc 8(1):111-116, 2001)
STUDY OBJECTIVE: To investigate histologic structures of intrauterine septa resected hysteroscopically. DESIGN: Prospective, consecutive study (Canadian Task Force classification II-2). SETTING: University-affiliated hospital. PATIENTS: Seventy-six women evaluated for uterine septa and infertility. INTERVENTIONS: All patients with diagnosis of uterine septum detected by transvaginal color Doppler (TVCD) underwent operative hysteroscopy in which the most prominent part of the septum was encircled with a hysteroscopic loop electrode and removed. Specimens were sent for histopathologic evaluation. The rest of the septum was divided by monopolar needle electrode until the uterine cavity assumed a globular shape. MEASUREMENTS AND MAIN RESULTS: In 63 women (82.8%) preoperative TVCD revealed septal vascularity typical for radial arteries with mean resistance flow of 0.64 +/- 0.06, and enlarged sunusoidal and capillary spaces. Histopathologic results revealed fibromuscular tissue with moderately more connective tissue in 55 cases (72.3%) and myometrial tissue in 21 (27.6%). There was no statistically significant difference (p >0.05) in frequency of septa between patients with primary and secondary infertility. CONCLUSION: Intrauterine septa consisted of the same type of tissue as normal myometrium, with many muscular fibers. We suspect that muscular tissue within the uterine septum is a potential cause of irregular contractility and consequently increased abortion rate in these patients. (J Am Assoc Gynecol Laparosc 8(1):111-116, 2001)
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