Evidence map›Paper›PMID 35601798›Full record

ArticleClinical and translational radiation oncology2022

Proton therapy of a pregnant patient with nasopharyngeal carcinoma.

Joosje H Heimovaara, Jeroen Blommaert, Jeffrey Free, René A Bolt, Elske M Gort, Tom Depuydt, Cristina Boso Martinez, Mirthe H Schoots, Mathilde van Gerwen, Marry van den Heuvel-Eibrink and 5 more

Open access · goldAbstract readCase Reports
In one paragraph

Article in Clinical and translational radiation oncology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 24% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Guideline
  2. A case report of radiotherapy for head and neck cancer in a pregnant woman: dosimetric optimization andTechnical innovations & patient support in radiation oncology · 2026
    Article
  3. Article
  4. Pediatric Nasopharyngeal Carcinoma (NPC).Current oncology reports · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Challenges and opportunities for proton therapy during pregnancy.Acta obstetricia et gynecologica Scandinavica · 2024
    Article
  11. Article
  12. Cancer in pregnancy: treatment effects.Abdominal radiology (New York) · 2023
    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

15 authors at 5 institutions in 2 countries.

Joosje H HeimovaaraDepartment of Oncology, KU Leuven, Leuven, Belgium.
Jeroen BlommaertDepartment of Oncology, KU Leuven, Leuven, Belgium.
Jeffrey FreeDepartment of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
René A BoltDepartment of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
Elske M GortDepartment of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
Tom DepuydtDepartment of Oncology, KU Leuven, Leuven, Belgium.
Cristina Boso MartinezDepartment of Radiation Oncology, University Hospitals Leuven, Leuven, Belgium.
Mirthe H SchootsDepartment of Pathology and Medical Biology, Pathology Section, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
Mathilde van GerwenDepartment of Gynecologic Oncology, Netherlands Cancer Institute and Amsterdam University Medical Center, Amsterdam, the Netherlands.
Marry van den Heuvel-EibrinkPrincess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands.
Johannes A LangendijkDepartment of Radiation Oncology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
Carolien P SchröderDepartment of Medical Oncology, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands.
Frédéric AmantDepartment of Oncology, KU Leuven, Leuven, Belgium.
Sanne J GordijnDepartment of Obstetrics and Gynecology, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands.
Edwin OldehinkelDepartment of Oncology, KU Leuven, Leuven, Belgium.
KU Leuven · BEUniversity of Groningen · NLUniversity Medical Center Groningen · NLPrincess Máxima Center · NLThe Netherlands Cancer Institute · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and purpose: Radiotherapy during pregnancy is rarely administered due to lack of data and practical challenges. This is the first detailed report of proton therapy as cancer treatment for a pregnant patient with nasopharyngeal carcinoma. Materials and methods: Pencil beam scanning proton therapy was prescribed to a pregnant patient to a total dose of 70 Gy (RBE) to the therapeutic CTV and 54.25 Gy to the prophylactic CTV, delivered in 35 fractions with a simultaneous integrated boost technique. Results: Phantom measurements showed a thirty-fold decrease in fetal radiation dose when using proton compared to photon therapy, with a total fetal dose of 5.5 mSv for the complete proton treatment, compared to 185 and 298 mSv for the photon treatment with and without lead shielding, respectively. After adminstering proton therapy during pregnancy, at 39 weeks of gestation, a healthy boy with a birthweight on the 83th percentile was delivered. Pediatric follow-up at 2 months of age of the offspring showed normal growth and age-adequate motor development with no signs of neurological problems. MR follow-up of the tumor 3 months after the end of treatment showed complete remission. Conclusion: This case demonstrates the potential of proton therapy for treatment during pregnancy.Compared to photon therapy, proton therapy can significantly limit fetal dose, while simultaneously offering a more optimized treatment to the patient.

Identifiers

PMID35601798
PMCPMC9114153
OpenAlexW4225373679

What OpenQuestion holds

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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.