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Rev Bras Ginecol Obstet. 2010;32(11):549-555
DOI 10.1590/S0100-72032010001100006
PURPOSE: the purpose of this research was to evaluate the morphological aspects and vasculature of the corpus luteum (CL) based on ultrasound parameters during early pregnancy and to assess their relationship with early pregnancy loss. METHODS: this was a prospective cohort study of 90 pregnant patients between 6 and 8 weeks plus 6 days weeks of gestation. We included women at low risk, without acute or chronic systemic disease and with spontaneous conception. Exclusion criteria: use of drugs or smoking, drugs inducing ovulation, history of more than one abortion, no heartbeat visible in the embryo and impossibility of visualization of the corpus luteum. The size, volume, morphological aspects, resistive index, and peak systolic velocity of the corpus luteum were measured by transvaginal sonography. RESULTS: ninety patients were included in the study. Maternal age ranged from 15 to 41 years (mean 28.6±5.8 years). The corpus luteum could be visualized in 87 patients (96.7%), 79 patients had normal pregnancies (90.1%), whereas spontaneous losses occurred in 8 cases (9.9%). In a comparison of the survivors and losses, there was no difference in mean CL diameter (21.8 versus 20.0 mm; p=0.108, Mann-Whitney test), mean CL volume (4.2 versus 3.0 cm³; p=0.076, Mann-Whitney test), mean resistive index (0.55 versus 0,58; p=0.220, Mann-Whitney test), peak systolic velocity (15 versus 15 cm/s; p=0.757, Mann-Whitney test). There was a positive relation between maternal age and resistive index. CONCLUSIONS: no apparent correlation was found between the morphological and vascular aspects of the corpus luteum in early normal pregnancies and first-trimester pregnancy losses.
Summary
Rev Bras Ginecol Obstet. 2010;32(11):549-555
DOI 10.1590/S0100-72032010001100006
PURPOSE: the purpose of this research was to evaluate the morphological aspects and vasculature of the corpus luteum (CL) based on ultrasound parameters during early pregnancy and to assess their relationship with early pregnancy loss. METHODS: this was a prospective cohort study of 90 pregnant patients between 6 and 8 weeks plus 6 days weeks of gestation. We included women at low risk, without acute or chronic systemic disease and with spontaneous conception. Exclusion criteria: use of drugs or smoking, drugs inducing ovulation, history of more than one abortion, no heartbeat visible in the embryo and impossibility of visualization of the corpus luteum. The size, volume, morphological aspects, resistive index, and peak systolic velocity of the corpus luteum were measured by transvaginal sonography. RESULTS: ninety patients were included in the study. Maternal age ranged from 15 to 41 years (mean 28.6±5.8 years). The corpus luteum could be visualized in 87 patients (96.7%), 79 patients had normal pregnancies (90.1%), whereas spontaneous losses occurred in 8 cases (9.9%). In a comparison of the survivors and losses, there was no difference in mean CL diameter (21.8 versus 20.0 mm; p=0.108, Mann-Whitney test), mean CL volume (4.2 versus 3.0 cm³; p=0.076, Mann-Whitney test), mean resistive index (0.55 versus 0,58; p=0.220, Mann-Whitney test), peak systolic velocity (15 versus 15 cm/s; p=0.757, Mann-Whitney test). There was a positive relation between maternal age and resistive index. CONCLUSIONS: no apparent correlation was found between the morphological and vascular aspects of the corpus luteum in early normal pregnancies and first-trimester pregnancy losses.
Summary
Rev Bras Ginecol Obstet. 2006;28(11):633-642
DOI 10.1590/S0100-72032006001100002
PURPOSE: to verify the sensitivity, specificity and accuracy of some ultrasonographic measurements in the diagnosis of stress urinary incontinence (SUI). METHODS: transvaginal ultrasound measurements of the bladder neck descent, urethral mobility and urethrovesical funneling caused by urination effort were performed in 40 women with SUI and in 40 women from a control group. Age, parity and the number of pregnancies were different in both groups. Several cut points were performed to evaluate the sensitivity, specificity and accuracy of these measurements as a diagnostic tool for SUI. The urodynamic results were used as gold standard. Univariated analysis was done using Yates chi2 Test and Pearson chi2 Test. RESULTS: in the best cut point for bladder neck descent measurements, sensitivity was 40%, specificity was 72% and accuracy was 57%; in the best cut point for urethral mobility measurements, sensitivity was 40%, specificity was 70% and accuracy was 55%; in the best cut point for urethrovesical funneling measurements, sensitivity was 58%, specificity was 48% and accuracy was 52%; in the best cut point for the addition of the differences of these three measurements, sensitivity was 32%, specificity was 62% and accuracy was 48%. CONCLUSION: vaginal ultrasonography was not a valid diagnostic method for stress urinary incontinence in the present study.
Summary
Rev Bras Ginecol Obstet. 2006;28(11):633-642
DOI 10.1590/S0100-72032006001100002
PURPOSE: to verify the sensitivity, specificity and accuracy of some ultrasonographic measurements in the diagnosis of stress urinary incontinence (SUI). METHODS: transvaginal ultrasound measurements of the bladder neck descent, urethral mobility and urethrovesical funneling caused by urination effort were performed in 40 women with SUI and in 40 women from a control group. Age, parity and the number of pregnancies were different in both groups. Several cut points were performed to evaluate the sensitivity, specificity and accuracy of these measurements as a diagnostic tool for SUI. The urodynamic results were used as gold standard. Univariated analysis was done using Yates chi2 Test and Pearson chi2 Test. RESULTS: in the best cut point for bladder neck descent measurements, sensitivity was 40%, specificity was 72% and accuracy was 57%; in the best cut point for urethral mobility measurements, sensitivity was 40%, specificity was 70% and accuracy was 55%; in the best cut point for urethrovesical funneling measurements, sensitivity was 58%, specificity was 48% and accuracy was 52%; in the best cut point for the addition of the differences of these three measurements, sensitivity was 32%, specificity was 62% and accuracy was 48%. CONCLUSION: vaginal ultrasonography was not a valid diagnostic method for stress urinary incontinence in the present study.
