Evidence map›Paper›PMID 33886946›Full record

ArticleJournal of applied oral science : revista FOB2021

Prevalence of hyposalivation and associated factors in survivors of head and neck cancer treated with radiotherapy.

Riéli Elis Schulz, Laura Izabel Lampert Bonzanini, Gabriela Barbieri Ortigara, Eloisa Barbieri Soldera, Cristiane Cademartori Danesi, Raquel Pippi Antoniazzi, Kívia Linhares Ferrazzo

Open access · diamondAbstract read
In one paragraph

Article in Journal of applied oral science : revista FOB, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Predictors of survival among head and neck cancer patients after radiotherapy based on health-related quality of life indices and symptoms-specific outcomes: a systematic review.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2025
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  14. Long-term swallow outcomes and factors affecting swallowing dysfunction and quality of life among oral cancer patients: a prospective observational study.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2023
    Observational
  15. Trismus, health-related quality of life, and trismus-related symptoms up to 5 years post-radiotherapy for head and neck cancer treated between 2007 and 2012.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2023
    Article
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

7 authors at 1 institution in 1 country.

Riéli Elis SchulzUniversidade Federal de Santa Maria, Santa Maria, RS, Brasil.ORCID http://orcid.org/0000-0001-6357-0092
Laura Izabel Lampert BonzaniniUniversidade Federal de Santa Maria, Santa Maria, RS, Brasil.ORCID http://orcid.org/0000-0002-6482-1399
Gabriela Barbieri OrtigaraUniversidade Federal de Santa Maria, Santa Maria, RS, Brasil.ORCID http://orcid.org/0000-0002-7873-0420
Eloisa Barbieri SolderaUniversidade Federal de Santa Maria, Santa Maria, RS, Brasil.ORCID http://orcid.org/0000-0002-0701-8305
Cristiane Cademartori DanesiUniversidade Federal de Santa Maria, Faculdade de Odontologia, Departamento de Patologia, Santa Maria, RS, Brasil.ORCID http://orcid.org/0000-0001-9170-5791
Raquel Pippi AntoniazziUniversidade Federal de Santa Maria, Faculdade de Odontologia, Departamento de Estomatologia, Santa Maria, RS, Brasil.ORCID http://orcid.org/0000-0003-0282-6896
Kívia Linhares FerrazzoUniversidade Federal de Santa Maria, Faculdade de Odontologia, Departamento de Patologia, Santa Maria, RS, Brasil.ORCID http://orcid.org/0000-0002-6651-5651
Universidade Federal de Santa Maria · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hyposalivation and sensation of dry mouth (xerostomia) are one of the most common adverse effects in the treatment of patients with head and neck cancer.

objectiveThis study evaluates the prevalence of late hyposalivation and associated factors in survivors of squamous cell carcinoma of the oral cavity, oropharynx, hypopharynx, or larynx treated with radiotherapy with or without concomitant chemotherapy. METHODOLOGY: A cross-sectional study was conducted with 88 patients who had concluded radiotherapy at least three months before the study, at a referral center for the treatment of head and neck cancer in the Southern region of Brazil. Hyposalivation was evaluated based on the stimulated salivary flow rate using the spitting method. Multivariate analysis using binary logistic regression was performed to determine the associations between hyposalivation and clinical and demographic variables.

resultsHyposalivation was found in 78.41% of the sample and the mean radiation dose was 63.01 Gy (±9.58). In the crude model of the multivariate analysis, hyposalivation was associated with higher doses of radiation (p=0.038), treatment with concomitant radiotherapy and chemotherapy (p=0.005), and time elapsed since the end of radiotherapy (p=0.025). In the adjusted model of the multivariate analysis, hyposalivation was only associated with dose and time elapsed. Patient who received higher doses of radiation had a 4.25-fold greater chance of presenting hyposalivation, whereas a longer time elapsed since the end of radiotherapy exerted a 75% protective effect against the occurrence of hyposalivation.

conclusionHyposalivation is a highly prevalence late-onset side effect of radiotherapy in patients treated for head and neck cancer, with a greater chance of occurrence among those who received higher doses of radiation and those who ended therapy less than 22 months before our study. Concomitant chemotherapy and radiotherapy does not seem to increase the chances of hyposalivation compared to radiotherapy alone.

Indexed as

Head and Neck NeoplasmsXerostomiaBrazilCross-Sectional StudiesHumansPrevalenceSurvivors

Identifiers

PMID33886946
PMCPMC8075291
OpenAlexW3156214320

What OpenQuestion holds

Textmetadata
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.