Immunoglobulin G antisperm antibodies and prediction of spontaneous pregnancy  

Oleh:

Leushuis, Esther ; Steeg, Jan Willem van der ; Steures, Pieternel

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Fertility and Sterility (keterangan: ada di ClinicalKey) vol. 92 no. 05 (Nov. 2009), page 1659-1665.
Topik: Mixed agglutination reaction; antisperm antibodies; prospective cohort; subfertility; spontaneous pregnancy; ongoing pregnancy

Ketersediaan

Perpustakaan FK Nomor Panggil: F02.K.2009.04 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Objective To investigate the predictive capacity of immunoglobulin G ASA (direct MAR test) for spontaneous ongoing pregnancy in subfertile couples. Design Prospective cohort study. Setting Nine fertility centers in The Netherlands. Patient(s) Consecutive ovulatory subfertile couples. Intervention(s) A basic fertility workup, including a mixed agglutination reaction test for IgG (MAR test) at first semen analysis. Main Outcome Measure(s) Spontaneous conception resulting in ongoing pregnancy. Result(s) We included 1,794 couples, of which 283 (16%) had a spontaneous ongoing pregnancy within 1 year. When a threshold 50% was used for an abnormal test result, the MAR test was positive in 3% of the couples. In the univariable analysis, a positive MAR test =50% reduced, albeit not statistically significant, the probability of spontaneous pregnancy (hazard ratio [HR] 0.76, 95% confidence interval [CI] 0.34 to 1.7). In the multivariable analysis, a positive MAR test =50% had no contribution in the prediction of spontaneous pregnancy (HR 0.99, 95% CI 0.40 to 2.4). Conclusion(s) This large cohort study shows that the MAR test is not able to predict spontaneous pregnancy chances. Its routine use in the basic fertility workup for identification of couples with low spontaneous pregnancy chances is not justified.

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