Evidence map›Paper›PMID 26391237›Full record

Trial reportRadiation oncology (London, England)2015

Cardiac dose reduction with deep inspiration breath hold for left-sided breast cancer radiotherapy patients with and without regional nodal irradiation.

Rosanna Yeung, Leigh Conroy, Karen Long, Daphne Walrath, Haocheng Li, Wendy Smith, Alana Hudson, Tien Phan

Abstract readClinical Trial
In one paragraph

Trial report in Radiation oncology (London, England), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

54 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  9. Patient coaching for deep inspiration breath hold decreases set-up duration and left anterior descending artery dose for left-sided breast cancer radiotherapy.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2025
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  13. Stereoscopic X-ray image and thermo-optical surface guidance for breast cancer radiotherapy in deep inspiration breath-hold.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2024
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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.

Rosanna YeungDivision of Radiation Oncology, Department of Oncology, University of Calgary,, 2500 University Dr NW, Calgary, Alberta, T2N 1 N4, Canada. Rosanna.Yeung@albertahealthservices.ca.
Leigh ConroyDepartment of Medical Physics, Tom Baker Cancer Centre, 1331 29 Street Northwest, Calgary, AB, T2N 4 N2, Canada. Leigh.Conroy@albertahealthservices.ca.
Karen LongDepartment of Radiation Therapy, Tom Baker Cancer Centre, 1331 29 Street Northwest, Calgary, AB, T2N 4 N2, Canada. Karen.Long2@albertahealthservices.ca.
Daphne WalrathDepartment of Radiation Therapy, Tom Baker Cancer Centre, 1331 29 Street Northwest, Calgary, AB, T2N 4 N2, Canada. Daphne.Walrath@albertahealthservices.ca.
Haocheng LiDepartments of Oncology and Community Health Sciences, University of Calgary, 2500 University Dr NW, Calgary, Alberta, T2N 1 N4, Canada. Haocheng.Li@ucalgary.ca.
Wendy SmithDepartment of Medical Physics, Tom Baker Cancer Centre, 1331 29 Street Northwest, Calgary, AB, T2N 4 N2, Canada. Wendy.Smith@albertahealthservices.ca.
Alana HudsonDepartment of Medical Physics, Tom Baker Cancer Centre, 1331 29 Street Northwest, Calgary, AB, T2N 4 N2, Canada. Alana.Hudson@albertahealthservices.ca.
Tien PhanDivision of Radiation Oncology, Department of Oncology, University of Calgary,, 2500 University Dr NW, Calgary, Alberta, T2N 1 N4, Canada. Tien.Phan@albertahealthservices.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDeep inspiration breath hold (DIBH) reduces heart and left anterior descending artery (LAD) dose during left-sided breast radiation therapy (RT); however there is limited information about which patients derive the most benefit from DIBH. The primary objective of this study was to determine which patients benefit the most from DIBH by comparing percent reduction in mean cardiac dose conferred by DIBH for patients treated with whole breast RT ± boost (WBRT) versus those receiving breast/chest wall plus regional nodal irradiation, including internal mammary chain (IMC) nodes (B/CWRT + RNI) using a modified wide tangent technique. A secondary objective was to determine if DIBH was required to meet a proposed heart dose constraint of Dmean < 4 Gy in these two cohorts.

methodsTwenty consecutive patients underwent CT simulation both free breathing (FB) and DIBH. Patients were grouped into two cohorts: WBRT (n = 11) and B/CWRT + RNI (n = 9). 3D-conformal plans were developed and FB was compared to DIBH for each cohort using Wilcoxon signed-rank tests for continuous variables and McNemar's test for discrete variables. The percent relative reduction conferred by DIBH in mean heart and LAD dose, as well as lung V20 were compared between the two cohorts using Wilcox rank-sum testing. The significance level was set at 0.05 with Bonferroni correction for multiple testing.

resultsAll patients had comparable target coverage on DIBH and FB. DIBH statistically significantly reduced mean heart and LAD dose for both cohorts. Percent reduction in mean heart and LAD dose with DIBH was significantly larger in the B/CWRT + RNI cohort compared to WBRT group (relative reduction in mean heart and LAD dose: 55.9 % and 72.1 % versus 29.2 % and 43.5 %, p < 0.02). All patients in the WBRT group and five patients (56 %) in the B/CWBRT + RNI group met heart Dmean <4 Gy with FB. All patients met this constraint with DIBH.

conclusionsAll patients receiving WBRT met Dmean Heart < 4 Gy on FB, while only slightly over half of patients receiving B/CWRT + RNI were able to meet this constraint in FB. DIBH allowed a greater reduction in mean heart and LAD dose in patients receiving B/CWRT + RNI, including IMC nodes than patients receiving WBRT. These findings suggest greatest benefit from DIBH treatment for patients receiving regional nodal irradiation.

Indexed as

Breath HoldingAdultAgedAged, 80 and overFemaleHeartHumansInhalationLymph NodesMiddle AgedOrgans at RiskRadiation InjuriesRadiotherapyRadiotherapy DosageRadiotherapy Planning, Computer-AssistedUnilateral Breast Neoplasms

Identifiers

PMID26391237
PMCPMC4578779

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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.