{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,18]],"date-time":"2026-01-18T22:12:53Z","timestamp":1768774373497,"version":"3.49.0"},"reference-count":21,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2014,4,4]],"date-time":"2014-04-04T00:00:00Z","timestamp":1396569600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["World j. surg."],"published-print":{"date-parts":[[2014,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Breast cancer is increasingly reported in young premenopausal women in Asia. Adjuvant chemotherapy improves survival; however, it has a unique consequence of ovarian failure in premenopausal patients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective<\/jats:title><jats:p>This study\u2019s aim was to find the incidence of chemotherapy\u2010induced ovarian failure (CIOF) and reversible amenorrhea in premenopausal non\u2010metastatic breast cancer patients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Method<\/jats:title><jats:p>This mixed retrospective and prospective study follows premenopausal breast cancer patients receiving chemotherapy between 2008 and 2012. Patients in the prospective arm were followed up with menstrual history and serum ovarian hormones (follicle\u2010stimulating hormone [FSH] and estradiol) until 1 year post\u2010chemotherapy, and patients in the retrospective arm were contacted for their menstrual history.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The mean age of the 102 subjects was 43.3 years. Of the patients, 93.1 and 77.9 % were amenorrheic at completion of chemotherapy and at 12\u00a0months post\u2010chemotherapy, respectively. Of those who developed amenorrhea, 24.6 % regained menstruation, on average after 7.86 (range 1\u201315) months post\u2010chemotherapy. Age was the only statistically significant risk factor. CIOF and reversible amenorrhea was 57 and 50 % at &lt;35 years, 95 and 31.6 % at 35\u201345 years, and 97.9 and 14.9 % at &gt;50 years, respectively. The 33 prospective patients\u2019 estradiol and FSH levels seem to correlate well with onset of amenorrhea, with a falling estradiol and rising FSH trend. Tamoxifen use was associated with elevated estradiol levels 1 year post\u2010chemotherapy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This study found a high incidence of CIOF, with a relatively low rate of reversible amenorrhea. Premenopausal patients should be counselled prior to treatment and education and support provided.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00268-014-2542-y","type":"journal-article","created":{"date-parts":[[2014,4,3]],"date-time":"2014-04-03T19:42:00Z","timestamp":1396554120000},"page":"2288-2296","source":"Crossref","is-referenced-by-count":34,"title":["Incidence of Chemotherapy\u2010Induced Ovarian Failure in Premenopausal Women Undergoing Chemotherapy for Breast Cancer"],"prefix":"10.1002","volume":"38","author":[{"given":"V.","family":"Tiong","sequence":"first","affiliation":[{"name":"Department of Surgery University Malaya 50603 Kuala Lumpur Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A. M.","family":"Rozita","sequence":"additional","affiliation":[{"name":"Clinical Oncology Unit University Malaya 50603 Kuala Lumpur Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N. A.","family":"Taib","sequence":"additional","affiliation":[{"name":"Department of Surgery University Malaya 50603 Kuala Lumpur Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C. H.","family":"Yip","sequence":"additional","affiliation":[{"name":"Department of Surgery University Malaya 50603 Kuala Lumpur Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C. 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