Evidence map›Paper›PMID 11773180›Full record

ArticleJournal of clinical oncology : official journal of the American Society of Clinical Oncology2002

Increased risk of ischemic stroke after radiotherapy on the neck in patients younger than 60 years.

Lucille D A Dorresteijn, Arnoud C Kappelle, Willem Boogerd, Willem J Klokman, Alfons J M Balm, Ronald B Keus, Flora E van Leeuwen, Harry Bartelink

2 registry-linked trialsAbstract read
PubMed Publisher
In one paragraph

Article in Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 124 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
124citing papers in PubMed, 4 pooled it
7.5field-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.

NCT02114697 phase4terminatedstarted 2014, after this paper: background citation

Accelerated Atherosclerosis in High Risk Population Groups: An Assessment by Magnetic Resonance Imaging

Ran2014Enrolled9Registered outcomes1Posted comparisons0ConditionsAtherosclerosisArmsLifestyle Modification, Statin therapy
Open the trial in the graph
NCT00388713 unknown statusnot on this mapstarted 2006, after this paper: background citation

Radiation Induced Atherosclerosis in Breast Cancer Patients

TypeobservationalSponsorHadassah Medical OrganizationRan2006 to 2010Enrolled350ConditionsAbnormalities, Radiation-Induced, Atherosclerosis, Breast CancerArmscarotid intima-media thickening ultrasound
3 · Its place in the literature

Who cites it

124 citing papers in PubMed, 4 syntheses or guidelines pooled it, 324 citations in OpenAlex.

  1. Stroke Risk in Head and Neck Cancer: A Meta-analysis of Reconstructed Individual Patient Survival Data.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2025
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  7. Diagnostic Performance of Duplex Ultrasonography in Post-Radiation Common Carotid Artery Stenosis: A Cross-Sectional Validation Study.Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2026
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  15. Radiation Vasculopathy.Cerebrovascular diseases extra · 2025
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  17. Radiation-Induced Macrovessel/Microvessel Disease.Arteriosclerosis, thrombosis, and vascular biology · 2024
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64 more citing papers are in PubMed but not listed here.

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

8 authors at 1 institution in 1 country.

Lucille D A DorresteijnDepartment of Neuro-Oncology, Netherlands Cancer Institute/Antoni van Leeuwenhoekhuis, Plesmanlaan 121, 1066 CX Amsterdam, the Netherlands.
Arnoud C Kappelle
Willem Boogerd
Willem J Klokman
Alfons J M Balm
Ronald B Keus
Flora E van Leeuwen
Harry Bartelink
Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo estimate the risk of ischemic stroke in patients irradiated for head and neck tumors. PATIENTS AND

methodsThe incidence of ischemic stroke was determined in 367 patients with head and neck tumors (162 larynx carcinomas, 114 pleomorphic adenomas, and 91 parotid carcinomas) who had been treated with local radiotherapy (RT) at an age younger than 60 years. Relative risk (RR) of ischemic stroke was determined by comparison with population rates from a stroke-incidence register, adjusted for sex and age. Other risk factors for stroke (hypertension, smoking, hypercholesterolemia, diabetes mellitus [DM]) were registered. The median follow-up time after RT was 7.7 years (3,011 person-years of follow-up).

resultsFourteen cases of stroke occurred (expected, 2.5; RR, 5.6; 95% confidence interval [CI], 3.1 to 9.4): eight in patients with laryngeal carcinoma (expected,1.56; RR, 5.1; 95% CI, 2.2 to 10.1), four in pleomorphic adenoma patients (expected, 0.71; RR, 5.7; 95% CI, 1.5 to 14.5), and two in parotid carcinoma patients (expected, 0.24; RR, 8.5, 95% CI, 1.0 to 30.6). Five of six strokes in patients irradiated for a parotid tumor occurred at the ipsilateral side. Analysis of other risk factors for cerebrovascular disease showed hypertension and DM to cause an increase of the RR after RT. After more than 10 years' follow-up, the RR was 10.1 (95% CI, 4.4 to 20.0). The 15-year cumulative risk of stroke after RT on the neck was 12.0% (95% CI, 6.5% to 21.4%).

conclusionThis is the first study to demonstrate an increased risk of stroke after RT on the neck. During medical follow-up, preventive measures should be taken to reduce the impact of the risk factors for cerebrovascular disease, to decrease stroke in these patients.

Indexed as

Actuarial AnalysisAdultAgedAge FactorsFemaleHead and Neck NeoplasmsHumansIncidenceMaleMiddle AgedNetherlandsRadiation InjuriesRetrospective StudiesRiskStroke

Identifiers

PMID11773180
OpenAlexW2050196300

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.