Evidence map›Paper›PMID 31638829›Full record

SynthesisCirculation. Genomic and precision medicine2019

New Case Detection by Cascade Testing in Familial Hypercholesterolemia: A Systematic Review of the Literature.

Christopher Lee, Miriannie Rivera-Valerio, Hana Bangash, Larry Prokop, Iftikhar J Kullo

Open access · bronzeAbstract readSystematic Review
In one paragraph

Synthesis in Circulation. Genomic and precision medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 2 pooled it
6.8field-weighted citation impact, top 2% 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

45 citing papers in PubMed, 2 syntheses or guidelines pooled it, 79 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. A randomized controlled trial of genetic testing and cascade screening in familial hypercholesterolemia.Genetics in medicine : official journal of the American College of Medical Genetics · 2021
    Trial
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Attitudes toward returning pathogenicGenetics in medicine open · 2025
    Article
  13. Article
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  18. Article
  19. Obesity: An Impact with Cardiovascular and Cerebrovascular Diseases.Indian journal of clinical biochemistry : IJCB · 2024
    Review
  20. 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 1 institution in 1 country.

Christopher LeeDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
Miriannie Rivera-ValerioDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
Hana BangashDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
Larry ProkopDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
Iftikhar J KulloDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN.
Mayo Clinic in Arizona · US

Funding

Genomic Basis of Susceptibility to COVID-19 Infection and its ComplicationsU01HG006379 · NHGRI · MAYO CLINIC ROCHESTER · PI Richard R. Sharp · 2011 to 2026
$16.5M
Patient-Oriented Research in Genomic Discovery and ImplementationK24HL137010 · NHLBI · MAYO CLINIC ROCHESTER · PI KULLO, IFTIKHAR J · 2017 to 2021
$590k
NHGRI NIH HHS U01 HG006379NHLBI NIH HHS K24 HL137010
6 · The paper itself

Abstract

backgroundThe prevalence of familial hypercholesterolemia is 1 in 250, but <10% of patients are diagnosed. Cascade testing enables early detection of cases through systematic family tracing. Establishment of familial hypercholesterolemia cascade testing programs in the US could be informed by approaches used elsewhere.

methodsWe conducted a systematic review of published studies in the English language of cascade testing for familial hypercholesterolemia, which reported the number of index cases and number of relatives tested and specified methods of contacting relatives and testing modalities methods utilized. For each study, we calculated yield (proportion of relatives who test positive) and new cases per index case, to facilitate comparison.

resultsWe identified 10 studies from the literature that met inclusion criteria; the mean number of probands and relatives per study was 242 and 826, respectively. The average yield was 44.76% with a range of 30% to 60.5%, and the mean new cases per index case was 1.65 with a range of 0.22 to 8.0. New cases per index case tended to be greater in studies that used direct contact versus indirect contact (2.06 versus 0.86), tested beyond first-degree relatives versus only first-degree relatives (3.65 versus 0.80), used active sample collection versus collection at clinic (4.11 versus 1.06), and utilized genetic testing versus biochemical testing (2.47 versus 0.42).

conclusionsNew case detection in familial hypercholesterolemia cascade testing programs tended to be higher with direct contact of relatives, testing beyond first-degree relatives, in-home-based sample collection, and genetic testing. These findings should be helpful for establishing cascade testing programs in the United States.

Indexed as

Apolipoproteins BGenetic TestingHumansHyperlipoproteinemia Type IIMutationPedigreeProprotein Convertase 9Receptors, LDLApolipoproteins BLDLR protein, humanPCSK9 protein, humanProprotein Convertase 9Receptors, LDLcholesterolhumanshyperlipoproteinemia type IIprevalencesystematic review

Identifiers

PMID31638829
PMCPMC9875692
OpenAlexW2982075015

What OpenQuestion holds

Textmetadata
LicenceTDM
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.