Evidence map›Paper›PMID 33394273›Full record

ArticleBreast cancer research and treatment2021

Cardiotoxicity during long-term trastuzumab use in patients with HER2-positive metastatic breast cancer: who needs cardiac monitoring?

N I Bouwer, T G Steenbruggen, J van Rosmalen, H N Rier, J J E M Kitzen, M L van Bekkum, A J Ten Tije, P C de Jong, J C Drooger, C Holterhues and 6 more

Open access · hybridAbstract read
In one paragraph

Article in Breast cancer research and treatment, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 7% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Review
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  4. Signaling pathways and potential therapeutic agents in trastuzumab-induced cardiotoxicity.Apoptosis : an international journal on programmed cell death · 2026
    Review
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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

16 authors at 9 institutions in 1 country.

N I BouwerDepartment of Internal Medicine, Albert Schweitzer Hospital, 3300 AK, Dordrecht, South-Holland, The Netherlands. n.i.bouwer@asz.nl.ORCID http://orcid.org/0000-0002-2048-2233
T G SteenbruggenDepartment of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.
J van RosmalenDepartment of Biostatistics, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands.
H N RierDepartment of Medical Oncology, Erasmus MC, Cancer Institute, Rotterdam, The Netherlands.
J J E M KitzenDepartment of Internal Medicine, Albert Schweitzer Hospital, 3300 AK, Dordrecht, South-Holland, The Netherlands.
M L van BekkumDepartment of Medical Oncology, Reinier de Graaf Hospital, Delft, The Netherlands.
A J Ten TijeDepartment of Medical Oncology, Amphia Hospital, Breda, The Netherlands.
P C de JongDepartment of Medical Oncology, Sint Antonius Hospital, Utrecht, The Netherlands.
J C DroogerDepartment of Medical Oncology, Ikazia Hospital, Rotterdam, The Netherlands.
C HolterhuesDepartment of Medical Oncology, Haga Hospital, The Hague, The Netherlands.
C H SmorenburgDepartment of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.
M J M KofflardDepartment of Cardiology, Albert Schweitzer Hospital, Dordrecht, The Netherlands.
E BoersmaDepartment of Cardiology, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands.
G S SonkeDepartment of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.
M-D LevinDepartment of Internal Medicine, Albert Schweitzer Hospital, 3300 AK, Dordrecht, South-Holland, The Netherlands.
A JagerDepartment of Medical Oncology, Erasmus MC, Cancer Institute, Rotterdam, The Netherlands.
Albert Schweitzer Ziekenhuis · NLThe Netherlands Cancer Institute · NLErasmus MC · NLErasmus MC Cancer Institute · NLAmphia Ziekenhuis · NLHaga Hospital · NLIkazia Ziekenhuis · NLReinier de Graaf Hospital · NLSt. Antonius Ziekenhuis · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePatients with HER2-positive metastatic breast cancer (MBC) usually receive many years of trastuzumab treatment. It is unknown whether these patients require continuous left ventricular ejection fraction (LVEF) monitoring. We studied a real-world cohort to identify risk factors for cardiotoxicity to select patients in whom LVEF monitoring could be omitted.

methodsWe included patients with HER2-positive MBC who received > 1 cycle of trastuzumab-based therapy in eight Dutch hospitals between 2000 and 2014. Cardiotoxicity was defined as LVEF < 50% that declined > 10%-points and was categorized into non-severe cardiotoxicity (LVEF 40-50%) and severe cardiotoxicity (LVEF < 40%). Multivariable Cox and mixed model analyses were performed to identify risk factors associated with cardiotoxicity. Additionally, we explored the reversibility of cardiotoxicity in patients who continued trastuzumab.

resultsIn total, 429 patients were included. Median follow-up for cardiotoxicity was 15 months (interquartile range 8-31 months). The yearly incidence of non-severe + severe cardiotoxicity in the first and second year was 11.7% and 9.1%, respectively, which decreased thereafter. The yearly incidence of severe cardiotoxicity was low (2.8%) and stable over time. In non-smoking patients with baseline LVEF > 60% and no cardiotoxicity during prior neoadjuvant/adjuvant treatment, the cumulative incidence of severe cardiotoxicity was 3.1% after 4 years of trastuzumab. Despite continuing trastuzumab, LVEF decline was reversible in 56% of patients with non-severe cardiotoxicity and in 33% with severe cardiotoxicity.

conclusionsSerial cardiac monitoring can be safely omitted in non-smoking patients with baseline LVEF > 60% and without cardiotoxicity during prior neoadjuvant/adjuvant treatment.

Indexed as

Breast NeoplasmsCardiotoxicityErb-b2 Receptor Tyrosine KinasesFemaleHumansStroke VolumeTrastuzumabVentricular Function, LeftErb-b2 Receptor Tyrosine KinasesTrastuzumabCardiotoxicityHER2-positive metastatic breast cancerLVEF monitoringScreening for cardiotoxicityTrastuzumab treatment

Identifiers

PMID33394273
PMCPMC8019427
OpenAlexW3118577092

What OpenQuestion holds

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LicenceCC BY
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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.