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Record W2045174755 · doi:10.1136/bmj.327.7420.920

Assisted conception. III–Problems with assisted conception

2003· review· en· W2045174755 on OpenAlexaff
Peter Braude

Bibliographic record

VenueBMJ · 2003
Typereview
Languageen
FieldMedicine
TopicOvarian function and disorders
Canadian institutionsSt. Thomas Hospital
Fundersnot available
KeywordsOvarian hyperstimulation syndromePolycystic ovaryMedicineGynecologyMenotropinsPregnancyOvulationOvulation inductionInternal medicineBiologyHormoneIn vitro fertilisation

Abstract

fetched live from OpenAlex

Problems associated with assisted conception can be clinical, ethical, or psychological. This article covers medical problems (such as ovarian hyperstimulation syndrome (OHSS) and ectopic pregnancy), ethical questions that arise from situations such as the creation of surplus embryos, and difficult decisions that have to be made, such as when to advise a couple to stop treatment. View this table: Presentation of OHSS OHSS is arguably the most serious risk of treatment with gonadotrophins. It is not clear why OHSS occurs, although it is particularly severe with the use of gonadotrophin releasing hormone analogues and polycystic ovary syndrome. It generally develops if the patient has had an excessive response to gonadotrophins and has produced a large number (20 or more) follicles with its associatedexcessive rise in oestrogen production. OHSS occurs after exogenous human chorionic gonadotrophin has been administered, or when human chorionic gonadotrophin rises endogenously after a treatment cycle has been successful and an embryo has implanted. OHSS presents with substantial enlargement of the ovaries, which are filled with enlarging follicles (despite drainage at the time of egg collection) causing abdominal pain, distension, and extravascular fluid extravasation, which results in ascites and haemoconcentration. In the severest OHSS pleural effusions may develop and arterial or venous thromboses can occur because of hypercoagulability. View this table: Management of OHSS ![][1] Ultrasound scan showing an enlarged ovary (10 cm x 6 cm) and fluid in the pouch of Douglas and the uterovesical pouch Superovulation regimens should be designed and monitored to minimise OHSS. However, because of its idiosyncratic nature, the syndrome cannot be avoided completely. Indeed, it can occur simply by using clomifene to induce ovulation in sensitive patients, such as those with polycystic ovary syndrome. OHSS should be managed in a specialist hospital, preferably one with an in vitro fertilisation unit, where there will be the appropriate expertise to deal … [1]: /embed/graphic-1.gif

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Review · Consensus signal: Review
Teacher disagreement score0.866
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0020.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0030.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.086
GPT teacher head0.354
Teacher spread0.268 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; both teacher heads agree on what is shown here.

Study designNot applicable
Domainnot available
GenreReview

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations20
Published2003
Admission routes1
Has abstractyes

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