Evidence map›Paper›PMID 25896887›Full record

ArticleRadiation oncology (London, England)2015

Assessment of myocardial metabolic disorder associated with mediastinal radiotherapy for esophageal cancer -a pilot study.

Rei Umezawa, Kentaro Takanami, Noriyuki Kadoya, Yujiro Nakajima, Masahide Saito, Hideki Ota, Haruo Matsushita, Toshiyuki Sugawara, Masaki Kubozono, Takaya Yamamoto and 5 more

Open access · goldAbstract read
In one paragraph

Article 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 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% 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, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Comparison of dosimetric parameters and toxicity in esophageal cancer patients undergoing 3D conformal radiotherapy or VMAT.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2016
    Article
  8. 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

15 authors at 1 institution in 1 country.

Rei UmezawaDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan. reirei513@hotmail.com.
Kentaro TakanamiDepartment of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Japan. pfpmf6212000@yahoo.co.jp.
Noriyuki KadoyaDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan. kadoya.n@rad.med.tohoku.ac.jp.
Yujiro NakajimaDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan. y.nakajima@med.tohoku.ac.jp.
Masahide SaitoDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan. m.saito@med.tohoku.ac.jp.
Hideki OtaDepartment of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Japan. otahide@gmail.com.
Haruo MatsushitaDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan. harumatsu2001@yahoo.co.jp.
Toshiyuki SugawaraDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan. sugatosi772288@yahoo.co.jp.
Masaki KubozonoDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan. satoharuapple@yahoo.co.jp.
Takaya YamamotoDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan. priere_for@yahoo.co.jp.
Yojiro IshikawaDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan. y02614111@yahoo.co.jp.
Ken TakedaDepartment of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan. takedak41@yahoo.co.jp.
Yasuyuki TakiDepartment of Developmental Cognitive Neuroscience Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan. ytaki@idac.tohoku.ac.jp.
Kei TakaseDepartment of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Japan. ktakase@rad.med.tohoku.ac.jp.
Keiichi JinguDepartment of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan. kjingurad@yahoo.co.jp.
Tohoku University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo evaluate the dose-effect relations for myocardial metabolic disorders after mediastinal radiotherapy (RT) by performing iodine-123 β-methyl-iodophenyl pentadecanoic acid (I-123 BMIPP) scintigraphy.

methodsBetween 2011 and 2012, we performed I-123 BMIPP scintigraphy for patients with esophageal cancer before and six months after curative mediastinal RT. Single photon emission computed tomography (SPECT) images of pre-RT and post-RT were registered into RT dose distributions. The myocardium was contoured, and the regional RT dose was calculated. Normalization is required to compare pre- and post-RT SPECT images because the uptake pattern is changed due to the breathing level. Normalization was applied on the mean of SPECT counts in regions of the myocardium receiving less than 5 Gy. Relative values in each dose region (interval of 5 Gy) were calculated on the basis of this normalization for each patient. The reduction in the percent of relative values was calculated.

resultsFive patients were enrolled in this study. None of the patients had a past history of cardiac disease. The left ventricle was partially involved in RT fields in all patients. The patients received RT with median total doses of 60-66 Gy for the primary tumor and metastatic lymph nodes. Concomitant chemotherapy consisting of cisplatin or nedaplatin and 5-fluorouracil with RT was performed in 4 patients. All patients had reduced uptake corresponding to RT fields. Dose-effect relations for reduced uptake tended to be observed at 6 months after RT with mean decreases of 8.96% in regions at 10-15 Gy, 12.6% in regions at 20-25 Gy, 15.6% in regions at 30-35 Gy, 19.0% in regions at 40-45 Gy and 16.0% in regions at 50-55 Gy.

conclusionsDose-effect relations for myocardial metabolic disorders tended to be observed. We may need to make an effort to reduce high-dose mediastinal RT to the myocardium in RT planning.

Indexed as

AgedAged, 80 and overChemoradiotherapyDose-Response Relationship, RadiationEsophageal NeoplasmsFatty AcidsHeart DiseasesHumansIodine RadioisotopesIodobenzenesMaleMediastinal NeoplasmsMetabolic DiseasesMyocardiumPilot ProjectsRadiation InjuriesFatty AcidsIodine RadioisotopesIodobenzenesiodofiltic acid

Identifiers

PMID25896887
PMCPMC4407329
OpenAlexW2047246694

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.