Evidence map›Paper›PMID 9604764›Full record

ArticleJournal of assisted reproduction and genetics1998

Successful use of a laser for human embryo biopsy in preimplantation genetic diagnosis: report of two cases.

M Boada, M Carrera, C De La Iglesia, M Sandalinas, P N Barri, A Veiga

Registry-linked trialAbstract readCase Reports
In one paragraph

Article in Journal of assisted reproduction and genetics, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07691073 (The Impact of Ovarian Stimulation With hMG on Embryo Quality in Advanced Age Women. A Randomized Controlled Trial), which is not on this map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
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.

NCT07691073 phase4not yet recruitingnot on this mapstarted 2026, after this paper: background citation

The Impact of Ovarian Stimulation With hMG on Embryo Quality in Advanced Age Women. A Randomized Controlled Trial

TypeinterventionalSponsorFundacion DexeusRan2026 to 2029Enrolled240ConditionsInfertilityArms10 mcg of follitropin-delta + 150 of hMG, 5 mcg of follitropin-delta + 225 of hMG
3 · Its place in the literature

Who cites it

13 citing papers in PubMed.

  1. Article
  2. Observational
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Birth after transfer of frozen-thawed vitrified biopsied blastocysts.Journal of assisted reproduction and genetics · 2007
    Article
  12. Article
  13. Preimplantation genetics.Journal of assisted reproduction and genetics · 1998
    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

6 authors.

M BoadaDepartament d'Obstetrícia i Ginecologia, Institut Universitari Dexeus, Barcelona, Spain.
M Carrera
C De La Iglesia
M Sandalinas
P N Barri
A Veiga

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe use of Tyrode's acid to drill the zona pellucida for embryo biopsy is the most widely used methodology in preimplantation genetic diagnosis. Instead of this, we propose the use of a 1.48-micron diode noncontact laser, which is quicker, simpler, and safer.

methodsThe laser beam was tangentially guided to the zona pellucida of the embryo. Depending on zona pellucida measurement, two to four consecutive shots of 8-22 msec were necessary to drill the zona pellucida of the 13 embryos biopsied for two patients (hemophilia carriers).

resultsFemale embryos were replaced into the uterus of the patients (1.5 embryos/replacement). One single pregnancy was established (33.3% implantation rate). Coculture of untransferable embryos showed a blastocyst rate of 66.7% (4/6) for male embryos and 25% (1/4) for abnormal ones.

conclusionsThese results demonstrate the safety and usefulness of laser methodology in preimplantation genetic diagnosis.

Indexed as

LasersAdultBiopsy, NeedleEmbryo, MammalianFemaleHemophilia AHumansIn Situ Hybridization, FluorescencePregnancyPreimplantation DiagnosisZona Pellucida

Identifiers

PMID9604764
PMCPMC3454754

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Registered trials

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