Evidence map›Paper›PMID 35942912›Full record

ReviewXenotransplantation2022

The first clinical pig heart transplant: Was IVIg or pig cytomegalovirus detrimental to the outcome?

David K C Cooper, Takayuki Yamamoto, Hidetaka Hara, Richard N Pierson

Open access · greenAbstract readReview
In one paragraph

Review in Xenotransplantation, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
8.7field-weighted citation impact, top 1% 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

17 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Clinical Pig Heart Xenotransplantation-Where Do We Go From Here?Transplant international : official journal of the European Society for Organ Transplantation · 2024
    Article
  5. Article
  6. Milestones on the path to clinical pig organ xenotransplantation.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2023
    Review
  7. Review
  8. Review
  9. Review
  10. Bioethics and xenotransplantation from pig to human.Clinics (Sao Paulo, Brazil) · 2023
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. 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

4 authors at 2 institutions in 2 countries.

David K C CooperCenter for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts, USA.
Takayuki YamamotoCenter for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts, USA.
Hidetaka HaraYunnan Xenotransplantation Engineering Research Center, Yunnan Agricultural University, Kunming, Yunnan, China.ORCID 0000-0002-4179-7365
Richard N PiersonCenter for Transplantation Sciences, Department of Surgery, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts, USA.
Harvard University · USYunnan Agricultural University · CN

Funding

Prolonging life-supported pig kidney and heart graft survival in baboons by suppressing inflammationU19AI090959 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI COOPER, DAVID KC · 2010 to 2024
$26.3M
CRISPR-Modified Cardiac Xenograft TransplantationU01AI153612 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI PIERSON, RICHARD N · 2021 to 2024
$3.2M
CRISPR-Modified Cardiac Xenograft TransplantationR01AI153612 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI PIERSON, RICHARD N · 2020 to 2020
$796k
NIAID NIH HHS AI090959NIAID NIH HHS AI153612NIAID NIH HHS R01 AI153612NIAID NIH HHS U01 AI153612NIAID NIH HHS U19 AI090959
6 · The paper itself

Abstract

The clinical course of the first patient to receive a gene-edited pig heart transplant was recently reported by the University of Maryland team. Although the pig heart functioned well for >40 days, serum anti-pig antibodies then increased, and the patient sadly died after 60 days. Because of his debilitated pre-transplant state, the patient never thrived despite excellent graft function for several weeks, and the cause of his demise continues to be uncertain. A few days before an increase in anti-pig antibodies was observed, the patient had received intravenous human immunoglobulin (IVIg), and whether this played a role in his cardiac deterioration has been discussed. Furthermore, mcfDNA testing indicated an increase in pig cytomegalovirus (CMV), and its possible role in the development of cardiac dysfunction has also been considered. On the basis of the limited data provided in the publication and on our previous investigations into whether IVIg contains anti-TKO pig antibodies and therefore might be deleterious to TKO pig organ xenografts, we suggest that the steady rise in anti-pig antibody titer was more consistent with the failure of the immunosuppressive regimen to prevent elicited anti-TKO pig antibody production, rather than from the passive transfusion of IVIg or the presence of pig CMV in the graft. Although the outcome of the Maryland experience was disappointing, valuable lessons were learned. Our attention was drawn to the potential risks of heart transplantation in a "deconditioned" patient, the administration of IVIg, the transmission of pig CMV, and of the difficulties in interpreting myocardial biopsy findings.

Indexed as

Cytomegalovirus InfectionsHeart TransplantationCytomegalovirusGraft RejectionHumansImmunoglobulins, IntravenousTransplantation, HeterologousImmunoglobulins, Intravenousantibody-mediatedclinicalcytomegalovirusgenetically modifiedheartIVIgpigrejectionxenotransplantation

Identifiers

PMID35942912
PMCPMC10124764
OpenAlexW4290756034

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.