Assessment of a double freezing approach in the management of surplus embryos in IVF

Publication date: Available online 8 December 2018Source: Reproductive BioMedicine OnlineAuthor(s): Jacob Farhi, Shai Elizur, Michal Yonish, Daniel S Seidman, Adrian Shulman, Eyal Schiff, Raoul OrvietoAbstractResearch questionWhat pregnancy rates are achieved after transfer of cryopreserved double slow-frozen embryos in IVF cycles? Patients in whom surplus thawed cleaved embryos (day 2 or 3) were grown to the blastocyst stage, re-frozen and then re-thawed for transfer (double freezing) were included.DesignData were collected on all patients who had undergone the above procedure at the IVF unit of Assuta Ramat Hachayal Hospital, Tel Aviv, during a 7-year period. For each patient in the study group, the two-consecutive, matched-by-age patients treated with frozen–thawed single blastocyst transfer were selected to form a 2:1 ratio control group. All embryos were frozen using the slow freeze protocol.ResultsA total of 54 patients had 70 embryos that were re-frozen at the blastocyst stage. Twenty-eight of these blastocysts were thawed and 27 underwent transfer to 25 patients. A single embryo was transferred to 23 patients and two embryos were transferred to two patients. The survival rate of the second thawing was 96.4% (27/28). Clinical pregnancy rate was 16% (4/25) and implantation rate was 14.8% (4/27). In the study group, pregnancies were achieved in 22 out of the 25 patients using IVF treatment, indicating good receptivity of the uterus. In the control group, the implan...
Source: Reproductive BioMedicine Online - Category: Reproduction Medicine Source Type: research

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Abstract OBJECTIVE: to analyze the social conditions and life projects of non-pregnant adolescents, pregnant adolescents and pregnant women who are victims of domestic violence. METHODS: This is a exploratory, descriptive and comparative study of a quantitative and qualitative character. Ninety adolescents between 12 and 18 years old participated in the study, consisting of three groups: Group A (30 non-pregnant adolescents with no history of violence); Group B (30 pregnant adolescents with no history of violence); and Group C (30 pregnant adolescents with a history of violence). The tools used were a questio...
Source: Revista Brasileira de Enfermagem - Category: Nursing Authors: Tags: Rev Bras Enferm Source Type: research
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Source: Social Science and Medicine - Category: Psychiatry & Psychology Source Type: research
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Source: Revista gaucha de enfermagem EENFUFRGS - Category: Nursing Tags: Rev Gaucha Enferm Source Type: research
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Source: Infezioni in Medicina - Category: Infectious Diseases Tags: Infez Med Source Type: research
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Source: Advances in Dermatology and Allergology - Category: Dermatology Tags: Postepy Dermatol Alergol Source Type: research
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Authors: Martinez GM, Abma JC Abstract Monitoring sexual activity and contraceptive use among teenagers aged 15-19 in the United States informs understanding of the risk of pregnancy. By 2018, the U.S. birth rate for teenagers dropped 72% from its peak in 1991 (1), paralleling a decline in the teen pregnancy rate (1,2). While this represents progress toward national goals, these rates are still higher than those in other developed countries (3,4). Using data from the 2002 through 2015-2017 National Survey of Family Growth (NSFG), this report provides trends and national estimates of sexual activity and contraceptiv...
Source: NCHS data brief - Category: American Health Tags: NCHS Data Brief Source Type: research
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Source: European Archives of Psychiatry and Clinical Neuroscience - Category: Psychiatry Tags: Eur Arch Psychiatry Clin Neurosci Source Type: research
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Source: Epidemiology and Psychiatric Sciences - Category: Psychiatry Tags: Epidemiol Psychiatr Sci Source Type: research
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