The most common cancer type in women is breast cancer and the lifetime risk for breast cancer is 12% (1). The clinical feature of breast cancer is very heterogeneous because of the variable prognostic factors impact its behaviour (2). To know prognostic factors may help to estimate the prognosis and to choose the most appropriate treatment modality. Age, histopathologic subtypes, tumour size, tumour grade, lymph node involvement, extracapsular extension (ECE), lymphovascular invasion (LVI), and hormonal receptor status are the most important conventional prognostic factors (3).In addition to these factors, to know proliferation pattern of tumour is important for the treatment decision. In routine clinical practice, immunohistochemical evaluation of Ki-67 is frequently utilised to assess proliferative features of tumour cells. Except resting phase (G0), Ki-67 is detected in all proliferative phases of the cell cycle (G1, S, G2, and M). Ki-67 existing cells can be immunochemically marked, imaged, counted and showed as a percentage of total cells (4). It has been used for many years for breast cancer; it is currently utilised to distinguish between Luminal A-like and Luminal B-like subtypes in ER+/HER2-breast cancer and physicians frequently use Ki-67 index for making a decision on adjuvant treatment (5-7).In spite of consistent data about Ki-67 index, the relationship between Ki-67 index and the other prognostic factors remains uncertain. The results of studies evaluating the association between Ki-67 and tumour grade in breast cancer have been varied. Some of the research-
Lesions of brain metastasis from prostate cancer had a large variety of imaging presentation and it is very difficult to distinguish them from the other brain metastasis originating from other types of cancer. Presence of a disseminated disease, high PSA level and high Gleason score can be useful parameters for the prediction of brain metastasis from prostate cancer.
Objective: To find out the effect of estradiol with progesterone for luteal phase support in IVF-ICSI cycles. Materials and Methods: Patients were accepted for treatment in the ART unit of Selcuk University, Meram Faculty of Medicine, between January 2001 and March 2003. The study was done in a prospective manner. The age range of 252 women was 19–41 years and the total number of cycles was 310. All patients were treated with a long ovulation induction protocol. Patients were treated and divided into two groups in a randomized manner: group I used only 600 mg/day divided into three equal doses of micronized progesterone vaginally, and group II used transdermal estradiol 100 µg/day + 600 mg/day vaginal micronized progesterone. Results: 310 ICSI cycles were carried out in 252 infertile couples between January 2001 and March 2003. From 22 of these cycles, oocytes were retrieved but no embryos were developed. In the remaining 288 cycles there were embryo transfers. All embryo development was achieved by ICSI treatment. In 148 out of 288 cycles, the luteal phase was supported only by vaginal micronized progesterone (group I). On the other hand, the remaining 140 cycles received vaginal micronized progesterone plus transdermal estradiol 100 µg/day (group II). The number of β-hCG-positive results in group I and group II were 20 (13.5 %) and 54 (38.5%) respectively. Conclusion: Adding estradiol to progesterone for luteal phase support in ICSI-ET cycles may increase implantation and pregnancy rates.
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