Evidence map›Paper›PMID 35183194›Full record

ArticleRadiation oncology (London, England)2022

Preoperative spirometry and BMI in deep inspiration breath-hold radiotherapy: the early detection of cardiac and lung dose predictors without radiation exposure.

Yutaro Koide, Hidetoshi Shimizu, Takahiro Aoyama, Tomoki Kitagawa, Risei Miyauchi, Yui Watanabe, Hiroyuki Tachibana, Takeshi Kodaira

Open access · goldAbstract read
In one paragraph

Article in Radiation oncology (London, England), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

8 citing papers in PubMed, 7 citations in OpenAlex.

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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

8 authors at 1 institution in 1 country.

Yutaro KoideDepartment of Radiation Oncology, Aichi Cancer Center, Kanokoden 1-1, Chikusa-ku, Nagoya, Aichi, Japan. ykoide@aichi-cc.jp.ORCID http://orcid.org/0000-0001-8066-8753
Hidetoshi ShimizuDepartment of Radiation Oncology, Aichi Cancer Center, Kanokoden 1-1, Chikusa-ku, Nagoya, Aichi, Japan.
Takahiro AoyamaDepartment of Radiation Oncology, Aichi Cancer Center, Kanokoden 1-1, Chikusa-ku, Nagoya, Aichi, Japan.
Tomoki KitagawaDepartment of Radiation Oncology, Aichi Cancer Center, Kanokoden 1-1, Chikusa-ku, Nagoya, Aichi, Japan.
Risei MiyauchiDepartment of Radiation Oncology, Aichi Cancer Center, Kanokoden 1-1, Chikusa-ku, Nagoya, Aichi, Japan.
Yui WatanabeDepartment of Radiation Oncology, Aichi Cancer Center, Kanokoden 1-1, Chikusa-ku, Nagoya, Aichi, Japan.
Hiroyuki TachibanaDepartment of Radiation Oncology, Aichi Cancer Center, Kanokoden 1-1, Chikusa-ku, Nagoya, Aichi, Japan.
Takeshi KodairaDepartment of Radiation Oncology, Aichi Cancer Center, Kanokoden 1-1, Chikusa-ku, Nagoya, Aichi, Japan.
Aichi Cancer Center · JP

Funding

Japan Society for the Promotion of Science 20K16402
6 · The paper itself

Abstract

backgroundThis study aimed to investigate preoperative spirometry and BMI as early predictors of the mean heart and lung dose (MHD, MLD) in deep inspiration breath-hold (DIBH) radiotherapy.

methodsLeft-sided breast cancer patients underwent breast-conserving surgery followed by DIBH radiotherapy enrolled. Patients who were not available for preoperative spirometry were excluded. One hundred eligible patients were performed free-breathing (FB-) CT and DIBH-CT for plan comparison. We completed the correlative and multivariate analysis to develop the linear regression models for dose prediction. The residuals were calculated to explore the unpreferable subgroups and compare the prediction accuracy.

resultsAmong the parameters, vital capacity (VC) and BMI showed the strongest negative correlation with MHD (r = - 0.33) and MLD (r = - 0.34), respectively. They were also significant in multivariate analysis (P < 0.001). Elderly and less VC were independent predictors of increasing absolute residuals (AR). The VC model showed no significant difference in AR compared to the model using the CT parameter of lung volume in FB (LV-FB): median AR of the LV-FB model vs. the VC model was 0.12 vs. 0.11 Gy (P = 0.79). On the other hand, the median AR of the MLD model was 0.38 Gy, showing no specific subgroups of larger AR.

conclusionPreoperative spirometry and BMI are significant predictors of MHD and MLD, respectively. Although elderly and low-VC patients may have larger predictive variations, spirometry might be a substitute for LV-FB as a predictor of MHD.

Indexed as

SpirometryAdultAgedBreath HoldingFemaleHeartHumansLungMiddle AgedPreoperative PeriodRadiotherapyRadiotherapy DosageTime FactorsUnilateral Breast NeoplasmsBreast cancerDeep inspiration breath-holdPulmonary function testRadiotherapySpirometry

Identifiers

PMID35183194
PMCPMC8858484
OpenAlexW4212920796

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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.