{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,21]],"date-time":"2026-04-21T10:31:22Z","timestamp":1776767482245,"version":"3.51.2"},"reference-count":27,"publisher":"The Korean Society for Reproductive Medicine","issue":"1","license":[{"start":{"date-parts":[[2024,1,12]],"date-time":"2024-01-12T00:00:00Z","timestamp":1705017600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["ecerm.org"],"crossmark-restriction":true},"short-container-title":["Clin Exp Reprod Med"],"published-print":{"date-parts":[[2024,3,1]]},"abstract":"<jats:p>Objective: This study was conducted to investigate the impact of previous delivery mode on pregnancy outcomes in patients with secondary infertility after frozen-thawed embryo transfer.Methods: This prospective observational study included 140 patients experiencing secondary infertility. Of these, 70 patients had a previous cesarean delivery (CD), while the remaining 70 patients had a previous normal vaginal delivery (NVD). The primary outcome was the implantation rate. The secondary outcomes included rates of clinical pregnancy, chemical pregnancy, miscarriage, and ectopic pregnancy.Results: The comparison of all fertility outcomes between the two groups revealed no statistically significant differences. The implantation rate was 40.4% in the CD group and 41.7% in the NVD group (&lt;i&gt;p&lt;\/i&gt;=0.842). The clinical pregnancy rate was 50% in the CD group and 49.3% in the NVD group (&lt;i&gt;p&lt;\/i&gt;=0.932), while the chemical pregnancy rate was 14.6% in the CD group and 19% in the NVD group (&lt;i&gt;p&lt;\/i&gt;=0.591). The miscarriage rates in the CD and NVD groups were 20% and 17.6%, respectively (&lt;i&gt;p&lt;\/i&gt;=0.803). One case of tubal ectopic pregnancy occurred in the NVD group (1.4%).Conclusion: The mode of prior delivery did not significantly impact pregnancy outcomes following frozen-thawed embryo transfer.<\/jats:p>","DOI":"10.5653\/cerm.2023.06163","type":"journal-article","created":{"date-parts":[[2024,1,12]],"date-time":"2024-01-12T01:04:18Z","timestamp":1705021458000},"page":"63-68","update-policy":"https:\/\/doi.org\/10.5653\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Effect of prior cesarean delivery on the outcomes of intracytoplasmic sperm injection"],"prefix":"10.5653","volume":"51","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6739-8381","authenticated-orcid":true,"given":"Suzan Atteya","family":"Gewida","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohamed Salah Eldeen 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