Evidence map›Paper›PMID 25923652›Full record

ArticlePloS one2015

Fetal calcifications are associated with chromosomal abnormalities.

Ellika Sahlin, Meeli Sirotkina, Andreas Marnerides, Erik Iwarsson, Nikos Papadogiannakis

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. 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
2.9field-weighted citation impact, top 9% 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

4 citing papers in PubMed, 12 citations in OpenAlex.

  1. Trisomy 18 with widespread calcinosis cutis.Skin health and disease · 2025
    Article
  2. Article
  3. Coronary calcification in adults with Turner syndrome.Genetics in medicine : official journal of the American College of Medical Genetics · 2018
    Article
  4. 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

5 authors at 2 institutions in 1 country.

Ellika SahlinDepartment of Molecular Medicine and Surgery and Center for Molecular Medicine, Karolinska Institutet, CMM L8:02, Karolinska University Hospital, S-171 76, Stockholm, Sweden.
Meeli SirotkinaCenter for Perinatal Pathology and Department of Pathology, Karolinska University Hospital, Huddinge and Karolinska Institutet, S-141 86, Stockholm, Sweden.
Andreas MarneridesCenter for Perinatal Pathology and Department of Pathology, Karolinska University Hospital, Huddinge and Karolinska Institutet, S-141 86, Stockholm, Sweden.
Erik IwarssonDepartment of Molecular Medicine and Surgery and Center for Molecular Medicine, Karolinska Institutet, CMM L8:02, Karolinska University Hospital, S-171 76, Stockholm, Sweden.
Nikos PapadogiannakisCenter for Perinatal Pathology and Department of Pathology, Karolinska University Hospital, Huddinge and Karolinska Institutet, S-141 86, Stockholm, Sweden.
Karolinska Institutet · SEKarolinska University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe biological importance of calcifications occasionally noted in fetal tissues (mainly liver) at autopsy or ultrasound is largely unexplored. Previous reports hint at an association to infection, circulatory compromise, malformations or chromosomal abnormalities. To identify factors associated with calcifications, we have performed a case-control study on the largest cohort of fetuses with calcifications described thus far.

methodsOne-hundred and fifty-one fetuses with calcifications and 302 matched controls were selected from the archives of the Department of Pathology, Karolinska University Hospital. Chromosome analysis by karyotyping or quantitative fluorescence-polymerase chain reaction was performed. Autopsy and placenta reports were scrutinized for presence of malformations and signs of infection.

resultsCalcifications were mainly located in the liver, but also in heart, bowel, and other tissues. Fetuses with calcifications showed a significantly higher proportion of chromosomal abnormalities than controls; 50% vs. 20% (p<0.001). The most frequent aberrations among cases included trisomy 21 (33%), trisomy 18 (22%), and monosomy X (18%). A similar distribution was seen among controls. When comparing cases and controls with chromosomal abnormalities, the cases had a significantly higher prevalence of malformations (95% vs. 77%, p=0.004). Analyzed the other way around, cases with malformations had a significantly higher proportion of chromosomal abnormalities compared with controls, (66% vs. 31%, p<0.001).

conclusionThe presence of fetal calcifications is associated with high risk of chromosomal abnormality in combination with malformations. Identification of a calcification together with a malformation at autopsy more than doubles the probability of detecting a chromosomal abnormality, compared with identification of a malformation only. We propose that identification of a fetal tissue calcification at autopsy, and potentially also at ultrasound examination, should infer special attention towards co-existence of malformations, as this would be a strong indicator for a chromosomal abnormality.

Indexed as

Chromosome AberrationsCalcinosisCase-Control StudiesChromosome DisordersChromosomes, Human, Pair 18Down SyndromeFemaleFetal DiseasesGestational AgeHumansKaryotypePregnancyRetrospective StudiesTrisomyTurner Syndrome

Identifiers

PMID25923652
PMCPMC4414523
OpenAlexW2074595598

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.