Evidence map›Paper›PMID 32385832›Full record

ArticleJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology2021

Estimation of prevalence of transthyretin (ATTR) cardiac amyloidosis in an Australian subpopulation using bone scans with echocardiography and clinical correlation.

Claire Cuscaden, Stuart C Ramsay, Sandhir Prasad, Bruce Goodwin, Jye Smith

Abstract read
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In one paragraph

Article in Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 3 pooled it
1.8field-weighted citation impact, top 14% 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

22 citing papers in PubMed, 3 syntheses or guidelines pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Incidental Cardiac Uptake onDiseases (Basel, Switzerland) · 2026
    Review
  6. Article
  7. Article
  8. Article
  9. Scientific reports · 2023
    Article
  10. Review
  11. Radiology · 2023
    Review
  12. Review
  13. Review
  14. Article
  15. Radiopharmaceutical supply disruptions and the use ofJournal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2022
    Review
  16. Review
  17. Variability in bone-seeking tracers and imaging protocols for the diagnosis of cardiac amyloidosis: The more the merrier?Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2022
    Article
  18. ESC heart failure · 2022
    Review
  19. Wild-type transthyretin cardiac amyloidosis: When is a rare disease no longer a rare disease?Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2021
    Article
  20. Tc-99m HMDP versus MDP discrepancy in cardiac amyloidosis.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2021
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

Claire Cuscaden *Department of Medical Imaging, Princess Alexandra Hospital, 199 Ipswich Rd, Woolloongabba, QLD, 4102, Australia.
Stuart C Ramsay *Department of Nuclear Medicine and Specialised PET Service, Royal Brisbane and Women's Hospital (RBWH), Ned Hanlon Building, Herston, QLD, 4029, Australia. stuart.ramsay1@jcu.edu.au.ORCID 0000-0001-7009-4864
Sandhir PrasadDepartment of Cardiology, RBWH, Herston, QLD, 4029, Australia.
Bruce GoodwinDepartment of Nuclear Medicine, Queensland Children's Hospital, 501 Stanley St, South Brisbane, QLD, 4101, Australia.
Jye SmithDepartment of Nuclear Medicine and Specialised PET Service, Royal Brisbane and Women's Hospital (RBWH), Ned Hanlon Building, Herston, QLD, 4029, Australia.
Royal Brisbane and Women's Hospital · AUChildren's Health Queensland Hospital and Health Service · AUThe University of Queensland · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBone scans differentiate transthyretin (ATTR) cardiac amyloidosis from light chain amyloidosis and other causes of increased left ventricular (LV) wall thickness. We examined the prevalence and implications of cardiac uptake in the general population.

methodsPatients were included based on having undertaken a bone scan for non-cardiac indications using Technetium 99m hydroxymethylene diphosphonate (HMDP) or Technetium 99m methylene diphosphonate (MDP). Blinded image review was undertaken. Positive was defined as cardiac uptake ≥ rib AND heart/whole body ratio (H/WB) > 0.0388. Echocardiography and clinical records were reviewed.

results6918 patients were included. 15/3472 HMDP scans were positive (14 males, 1 female): none in individuals aged < 65; 1.44% in males and 0.17% in females ≥ 65; 6.15% in males and 1.69% in females ≥ 85. Only 1/3446 MDP scans were positive. All HMDP positive patients had increased septal wall thickness on echocardiography. H/WB correlated positively with LV mass, and negatively with LV ejection fraction. No individual had an explanation other than ATTR for their positive scan.

conclusionIn this Australian subpopulation, the prevalence of positive bone scans consistent with cardiac ATTR is 0% in individuals aged < 65. Prevalence increased with age, reaching 6.15% in men ≥ 85. The amount of HMDP uptake correlated with echocardiographic features of more advanced cardiac involvement. MDP does not appear useful in ATTR.

Indexed as

EchocardiographyPrealbuminAgedAged, 80 and overAmyloidosisAustraliaBone and BonesCardiomyopathiesCorrelation of DataDiphosphonatesFemaleHumansMaleMiddle AgedOrganotechnetium CompoundsPrevalenceDiphosphonatesOrganotechnetium CompoundsPrealbuminRadiopharmaceuticalstechnetium 99m methylene bisphosphonatetechnetium Tc 99m hydroxymethylene diphosphonateTechnetium Tc 99m MedronateTTR protein, humanATTR transthyretin cardiac amyloidosisBone scan

Identifiers

PMID32385832
OpenAlexW3023246377

What OpenQuestion holds

Textmetadata
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.