title: Characteristics of the menstrual cycle at the time of surgery for breast cancer.
abstract: Hormone measurements during the menstrual cycle were assessed in six premenopausal women undergoing breast cancer surgery and ten controls to determine whether the stress of diagnosis and surgery influenced cycle characteristics. There was hormonal evidence for normal ovulation in all cancer and control women, although the length of the luteal phase of the cycle was prolonged because of a delay in menstruation in two cancer patients. The timing of surgery in the cycle did not influence the hormonal data. The hormonal characteristics of the menstrual cycle thus appear to be normally preserved in women during the month in which breast cancer surgery is performed.
authors.affiliation: Department of Endocrinology, University of Auckland School of Medicine, New Zealand.
authors.forename: I M
authors.initials: IM
authors.lastname: Holdaway
authors.forename: B H
authors.initials: BH
authors.lastname: Mason
authors.forename: A E
authors.initials: AE
authors.lastname: Lethaby
authors.forename: J E
authors.initials: JE
authors.lastname: Harman
authors.forename: J T
authors.initials: JT
authors.lastname: France
authors.forename: B S
authors.initials: BS
authors.lastname: Knox
mesh_terms: D001943:Breast Neoplasms / Q000097:blood* / Q000601:surgery*; D004958:Estradiol / Q000097:blood*; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood*; D006801:Humans; D007124:Immunoenzyme Techniques; D007986:Luteinizing Hormone / Q000097:blood*; D008597:Menstrual Cycle / Q000097:blood*; D010060:Ovulation; D011374:Progesterone / Q000097:blood*; D011863:Radioimmunoassay; D012016:Reference Values; D012680:Sensitivity and Specificity; D013312:Stress, Physiological; D013315:Stress, Psychological
chemical_list: D011374:Progesterone; D004958:Estradiol; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone