Evidence map›Paper›PMID 35403417›Full record

Observational studyJBRA assisted reproduction2022

Patients undergoing elective and oncofertility preservation respond similarly to controlled ovarian stimulation for fertility preservation.

Ariane Tieko Frare Kira, Marta Ribeiro Hentschke, Natália Fontoura de Vasconcelos, Talita Colombo, Vanessa Devens Trindade, Alvaro Petracco, Bartira Ercília Pinheiro da Costa, Mariangela Badalotti

Open access · bronzeAbstract readObservational Study
In one paragraph

Observational study in JBRA assisted reproduction, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 33% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Ariane Tieko Frare KiraFertilitat - Reproductive Medicine Center, Porto Alegre, Brazil.
Marta Ribeiro HentschkeFertilitat - Reproductive Medicine Center, Porto Alegre, Brazil.
Natália Fontoura de VasconcelosSchool of Medicine, Pontifical Catholic University of Rio Grande do Sul, PUCRS.
Talita ColomboFertilitat - Reproductive Medicine Center, Porto Alegre, Brazil.
Vanessa Devens TrindadeFertilitat - Reproductive Medicine Center, Porto Alegre, Brazil.
Alvaro PetraccoFertilitat - Reproductive Medicine Center, Porto Alegre, Brazil.
Bartira Ercília Pinheiro da CostaSchool of Medicine, Pontifical Catholic University of Rio Grande do Sul, PUCRS.
Mariangela BadalottiFertilitat - Reproductive Medicine Center, Porto Alegre, Brazil.
Fertility Medical Group · BRPontifícia Universidade Católica do Rio Grande do Sul · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveOutcome data for oocyte vitrification for fertility preservation are still scarce despite the scientific and technological advances. Studies suggest that patients with cancer have worse outcomes regarding mature vitrified oocytes when compared to healthy patients. Thus, the objective of this study was to evaluate and compare the oocyte vitrification response in patients undergoing elective and oncofertility preservation.

methodsThe ovarian stimulation response was verified by a cross-sectional and observational study, analyzing data from 367 patients between 2009 and 2018, which were divided into elective group (EG; n=327) and oncofertility group (OFG; n=40). The number of follicles, oocytes, mature oocytes, and duration of the cycle was evaluated, which were compared with clinical and ovarian stimulus data between groups.

resultsA significant difference in women's age (31.3±5.8 vs. 37.0±2.9 years; p<0.01) and basal values of Follicle Stimulating Hormone (FSH), (4.0 [3.3 - 6.2] vs. 9.0 [5.4 - 9.9] mIU/mL; p<0.01) were observed. When adjusting data for age, FSH and Gonadotropin-releasing Hormone protocols, no significant difference in the number of vitrified mature oocytes between the two groups were observed (6.0 [3.0-11.0] vs. 7.0 [3.0-12.0]; p=0.11).

conclusionsThus, patients undergoing elective and oncofertility preservation seem to respond similarly to controlled ovarian stimulation for fertility preservation. Breast cancer was the most frequent in the OFG (67%).

Indexed as

Breast NeoplasmsFertility PreservationAdultCross-Sectional StudiesCryopreservationFemaleFollicle Stimulating HormoneHumansOocyte RetrievalOocytesOvulation InductionRetrospective StudiesFollicle Stimulating Hormonecryopreservationfertility preservationneoplasmsoncofertilityovarian stimulation

Identifiers

PMID35403417
PMCPMC9355427
OpenAlexW4223559363

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.