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      Positive correlation between serum and peritoneal fluid CA-125 levels in women with pelvic endometriosis Translated title: Correlação positiva entre os níveis séricos e no fluido peritonial de CA-125 em mulheres com endometriose pélvica

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          ABSTRACT

          CONTEXT AND OBJECTIVE:

          One of the diagnostic markers of endometriosis is CA-125, and elevated levels of this are caused by high concentrations in the ectopic endometrium. The objective of this study was to correlate CA-125 levels in serum and peritoneal fluid from women with and without pelvic endometriosis.

          DESIGN AND SETTING:

          This was a prospective, cross-sectional, controlled study of consecutive pa tients undergoing laparoscopy for infertility, pelvic pain or tubal ligation, during early follicular phase, at the university hospital of Faculdade de Medicina de Ribeirão Preto.

          METHODS:

          Fifty-two patients were divided into two groups: endometriosis group, consisting of 35 patients with biopsy-confirmed pelvic endometriosis, and control group, consisting of 17 patients without endometriosis. CA-125 levels in serum samples and peritoneal fluid were determined by chemiluminescence.

          RESULTS:

          CA-125 levels in serum and peritoneal fluid were higher in patients with advanced pelvic endometriosis (means of 39.1 ± 45.8 U/ml versus 10.5 ± 5.9 U/ml in serum, p < 0.005; 1,469.4 ± 1,350.4 U/ml versus 888.7 ± 784.3 U/ml in peritoneal fluid, p < 0.05), and showed a positive correlation between each other (correlation coefficient (r) = 0.4880). Women with more advanced degrees of endometriosis showed higher CA-125 levels in both serum and peritoneal fluid (p = 0.0001).

          CONCLUSION:

          There is a positive correlation between serum and peritoneal fluid values of CA-125 in women with and without endometriosis, and their levels are higher in peritoneal fluid. Advanced endometriosis is related to higher levels in both serum and peritoneal fluid.

          Resumo

          CONTEXTO E OBJETIVO:

          Um dos marcadores diagnósticos de endometriose é o CA-125, e seus níveis elevados são devidos à alta concentração no endométrio ectópico. O objetivo deste estudo foi correlacionar os níveis de CA-125 no soro e fluido peritonial de mulheres com e sem endometriose pélvica.

          TIPO DE ESTUDO E LOCAL:

          Estudo prospectivo, longitudinal, controlado, de pacientes consecutivas submetidas a laparoscopia por infertilidade, dor pélvica ou laqueadura tubária, durante a fase folicular precoce no Hospital Universitário da Faculdade de Medicina de Ribeirão Preto.

          MÉTODOS:

          Cinqüenta e duas pacientes foram divididas em dois grupos: grupo endometriose, com 35 pacientes com biópsia confirmada de endometriose pélvica, e grupo controle, com 17 pacientes sem endometriose. Níveis de CA-125 em amostras no soro e fluido peritonial foram determinadas por quimiluminescência.

          RESULTADOS:

          Os níveis de CA-125 no soro e fluido peritonial foram mais altos nas pacientes com endometriose pélvica avançada (média 39,1 ± 45,8 U/ml versus 10,5 ± 5,9 U/ml no soro, p < 0,005, 1469,4 ± 1350,4 U/ml versus 888,7 ± 784,3 U/ml no fluido peritonial, p < 0,05), e o estudo mostrou uma correlação positiva entre eles (coeficiente de correlação = 0,4880). Mulheres com estágios mais avançados de endometriose mostraram níveis de CA-125 maiores em ambos soro e fluido peritonial (p = 0,0001).

          CONCLUSÃO:

          Há uma correlação positiva entre os valores de CA-125 no soro e no fluido peritonial em pacientes com e sem endometriose e seus níveis são maiores no fluido peritonial. Endometriose avançada é relacionada com níveis mais altos de CA-125 em ambos soro e fluido peritonial.

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          Most cited references48

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          Revised American Society for Reproductive Medicine classification of endometriosis: 1996.

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            The performance of CA-125 measurement in the detection of endometriosis: a meta-analysis.

            To assess the diagnostic performance of serum CA-125 measurement in the detection of endometriosis. Meta-analysis. Twenty-three studies comparing serum CA-125 levels and laparoscopically confirmed endometriosis. Serum CA-125 measurement and laparoscopy. Sensitivity and specificity of serum CA-125 measurement in the diagnosis of endometriosis with laparoscopy as the reference standard. The estimated summary receiver operating characteristic curves showed that the performance of serum CA-125 measurement in the diagnosis of endometriosis grade I/IV is limited, whereas its performance in the diagnosis of endometriosis grade III/IV is better. Despite its limited diagnostic performance, we believe that the routine use of serum CA-125 measurement in patients with infertility might be justified. In contrast to laparoscopy, serum CA-125 measurement is an inexpensive test that is not a burden for the patient. It could identify a subgroup of patients who are more likely to benefit from early laparoscopy. Studies reporting on the mutual dependence between serum CA-125 measurement and data from the history and physical examination are needed.
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              Endometriosis and pelvic pain: relation to disease stage and localization.

              To determine whether prevalence and severity of pain symptoms are related to endometriosis stage and site, with particular reference to deep infiltrating vaginal lesions. Systematic assessment of chronic pelvic pain symptoms. University hospital endometriosis center. A total of 244 consecutive symptomatic patients with endometriosis diagnosed at laparoscopy or laparotomy. Assessment of dysmenorrhea and nonmenstrual pain by means of a 10-point linear analog scale, a 7-point multidimensional rating scale, and a 3-point verbal scale; evaluation of deep dyspareunia with the first and third systems only. Prevalence and severity of pain symptoms in relation to endometriosis stage and site of lesions. Correlation between revised American Fertility Society score and symptoms severity, as well as between two pain scales to assess dysmenorrhea and nonmenstrual pain. Eighty-eight women had stage I and II disease and 156 had stage III and IV disease. Only ovarian endometriosis was present in 108 patients, only peritoneal implants were present in 37, combined ovarian and peritoneal lesions were present in 57, and histologically confirmed vaginal endometriosis was present in 42. The frequency and severity of deep dyspareunia and the frequency of dysmenorrhea were less in patients with only ovarian endometriosis than in those with lesions at other sites. Patients with vaginal endometriosis had a significantly increased risk of deep dyspareunia compared with those whose lesions were at other sites (odds ratio, 2.55; 95% confidence interval, 1.21 to 5.39). Stage per se, independent of lesion site, was not correlated with frequency and severity of dysmenorrhea and nonmenstrual pain. The severity of deep dyspareunia was related inversely to the endometriosis score (Spearman correlation coefficients for linear analog and verbal rating scales, respectively, -0.22 and -0.20). Kendall test by ranks revealed a correlation between linear analog and multidimensional pain scales in the rating of both dysmenorrhea and nonmenstrual pain (respectively, tau-b, 0.59 and tau-b, 0.68). Endometriosis stage in the current classification was not related consistently to pain symptoms. The presence of vaginal lesions was associated frequently with severe deep dyspareunia. Dysmenorrhea and nonmenstrual pelvic pain were assessed with equal accuracy by a linear analog and a multidimensional scale.
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                Author and article information

                Journal
                Sao Paulo Med J
                Sao Paulo Med J
                Sao Paulo Med J
                São Paulo Medical Journal
                Associação Paulista de Medicina - APM
                1516-3180
                1806-9460
                04 May 2006
                2006
                : 124
                : 4
                : 223-237
                Author notes
                [Address for correspondence: ] Rui Alberto Ferriani Av. Bandeirantes, 3900 — 8 o andar Ribeirão Preto (SP) — Brasil — CEP 14049-900 Tel. (+55 16) 602-2804 — Fax (+55 16) 633-0946 E-mail: raferria@ 123456fmrp.usp.br E-mail: juliocrs@ 123456convex.com.br

                Conflict of interest: Not declared

                Article
                10.1590/S1516-31802006000400010
                11065374
                17086305
                b6119001-afca-49ca-8286-5e095a395b1c

                This is an open access article distributed under the terms of the Creative Commons license.

                History
                : 16 November 2005
                : 18 November 2005
                : 04 July 2006
                Page count
                Figures: 2, Tables: 2, Equations: 0, References: 28, Pages: 5
                Categories
                Original Article

                endometriosis,ca-125 antigen,estradiol,laparoscopy,infertility,endometriose,antígeno ca-125,laparoscopia,infertilidade

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