Evidence map›Paper›PMID 34674658›Full record

ArticleBMC pregnancy and childbirth2021

Abdominal ectopic pregnancy following a frozen embryo transfer cycle: a case report.

Yan Li, Jiaxuan Geng, Qiaohua He, Jin Lu, Jin Xu, Ying Zhang, Cuilian Zhang

Abstract readCase Reports
In one paragraph

Article in BMC pregnancy and childbirth, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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.

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

4 citing papers in PubMed.

  1. Abdominal ectopic pregnancy at 17 weeks: a case report.Journal of surgical case reports · 2026
    Article
  2. Article
  3. Article
  4. An abdominal ectopic pregnancy followingJournal of surgical case reports · 2022
    Article
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

7 authors.

Yan LiReproductive Medical Center, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Weiwu Road, Zhengzhou, 450003, Henan, China.
Jiaxuan GengReproductive Medical Center, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Weiwu Road, Zhengzhou, 450003, Henan, China.
Qiaohua HeReproductive Medical Center, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Weiwu Road, Zhengzhou, 450003, Henan, China.
Jin LuReproductive Medical Center, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Weiwu Road, Zhengzhou, 450003, Henan, China.
Jin XuReproductive Medical Center, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Weiwu Road, Zhengzhou, 450003, Henan, China.
Ying ZhangReproductive Medical Center, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Weiwu Road, Zhengzhou, 450003, Henan, China.
Cuilian ZhangReproductive Medical Center, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Weiwu Road, Zhengzhou, 450003, Henan, China. xuyifendou@yeah.net.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAbdominal ectopic pregnancy (AEP) is a rare form of ectopic pregnancy. As the number of in-vitro fertilization (IVF) procedures continues to increase, the incidence of AEP will also rise. However, the rarity and atypical presentation of AEP make early diagnosis challenging. CASE PRESENTATION: Herein, we report an AEP following frozen-thawed embryo transfer (FET) in an artificial cycle. The patient was misdiagnosed with implantation failure when the serum human chorionic gonadotropin (hCG) level was detected as 2.59mIU/ml at fourteenth day after embryo transfer. Therefore, she was suggested to stop luteal phase support. However, a ruptured AEP was developed 33 days following embryo transfer, which was diagnosed by laparoscopic surgery.

conclusionsThe case highlighted the delayed serum β-hCG and massive intraperitoneal hemorrhage may be clues to make early diagnosis of AEP. Clinicians must attach great importance to close monitoring and bear in mind the possibility of abdominal pregnancy.

Indexed as

AdultChorionic Gonadotropin, beta Subunit, HumanDiagnostic ErrorsEmbryo TransferFemaleFertilization in VitroHumansPregnancyPregnancy, AbdominalPregnancy, EctopicChorionic Gonadotropin, beta Subunit, HumanAbdominal ectopic pregnancyArtificial cycleCase reportFrozen embryo transferHuman chorionic gonadotropin

Identifiers

PMID34674658
PMCPMC8532271

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Registered trials

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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.