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Lung metastases treated with stereotactic body radiotherapy: the RSSearch® patient Registry’s experience

Overview of attention for article published in Radiation Oncology, February 2017
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  • In the top 5% of all research outputs scored by Altmetric
  • One of the highest-scoring outputs from this source (#1 of 1,164)
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (90th percentile)

Mentioned by

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54 news outlets
twitter
3 tweeters
facebook
1 Facebook page

Citations

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65 Dimensions

Readers on

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71 Mendeley
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Title
Lung metastases treated with stereotactic body radiotherapy: the RSSearch® patient Registry’s experience
Published in
Radiation Oncology, February 2017
DOI 10.1186/s13014-017-0773-4
Pubmed ID
Authors

Anthony Ricco, Joanne Davis, William Rate, Jun Yang, David Perry, John Pablo, David D‘Ambrosio, Sanjeev Sharma, Srinath Sundararaman, James Kolker, Kimberly M. Creach, Rachelle Lanciano

Abstract

To report overall survival and local control for patients identified in the RSSearch® Patient Registry with metastatic cancer to the lung treated with SBRT. Seven hundred two patients were identified with lung metastases in the RSSearch® Registry. Of these patients, 577 patients had SBRT dose and fractionation information available. Patients were excluded if they received prior surgery, radiation, or radiofrequency ablation to the SBRT treated area. Between April 2004-July 2015, 447 patients treated with SBRT at 30 academic and community-based centers were evaluable for overall survival (OS). Three hundred four patients with 327 lesions were evaluable for local control (LC). All doses were converted to Monte Carlo equivalents and subsequent BED Gy10 for dose response analysis. Median age was 69 years (range, 18-93 years). Median Karnofsky performance status (KPS) was 90 (range 25/75% 80-100). 49.2% of patients had prior systemic therapy. Median metastasis volume was 10.58 cc (range 25/75% 3.7-25.54 cc). Site of primary tumor included colorectal (25.7%), lung (16.6%), head and neck (11.4%), breast (9.2%), kidney (8.1%), skin (6.5%) and other (22.1%). Median dose was 50 Gy (range 25/75% 48-54) delivered in 3 fractions (range 25/75% 3-5) with a median BED of 100Gy10 (range 25/75% 81-136). Median OS for the entire group was 26 months, with actuarial 1-, 3-, and 5-year OS of 74.1%, 33.3, and 21.8%, respectively. Patients with head and neck and breast cancers had longer median OS of 37 and 32 months respectively, compared to colorectal (30 months) and lung (26 months) which corresponded to 3-year actuarial OS of 51.8 and 47.9% for head and neck and breast respectively, compared to 35.8% for colorectal and 31.2% for lung. The median LC for all patients was 53 months, with actuarial 1-, 3-, and 5-year LC rates of 80.4, 58.9, and 46.3%, respectively. There was no difference in LC by primary histologic type (p = 0.49). Improved LC was observed for lung metastases that received SBRT doses of BED ≥100Gy10 with 3-year LC rate of 77.1% compared to 45% for lung metastases treated with BED < 100Gy10 (p = 0.01). Smaller tumor volumes (<11 cc) had improved LC compared to tumor volumes > 11 cc. (p = 0.005) Two-year LC rates for tumor volumes < 11 cc, 11-27 cc and > 27 cc were 72.9, 64.2 and 45.6%, respectively. This correlated with improved OS with 2-year OS rates of 62.4, 60.9 and 46.2% for tumor volumes < 11 cc, 11-27 cc and > 27 cc, respectively (p = 0.0023). In a subset of patients who received BED ≥100Gy10, 2-year LC rates for tumor volumes < 11 cc, 11-27 cc and > 27 cc were 82.8, 58.9 and 68.6%, respectively (p = 0.0244), and 2-year OS rates were 66.0, 58.8 and 28.5%, respectively (p = 0.0081). Excellent OS and LC is achievable with SBRT utilizing BED ≥100Gy10 for lung metastases according to the RSSearch® Registry data. Patients with small lung metastases (volumes < 11 cc) had better LC and OS when using SBRT doses of BED ≥100Gy10. Further studies to evaluate a difference, if any, between various tumor types will require a larger number of patients.

Twitter Demographics

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Mendeley readers

The data shown below were compiled from readership statistics for 71 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 71 100%

Demographic breakdown

Readers by professional status Count As %
Other 11 15%
Student > Postgraduate 10 14%
Student > Doctoral Student 9 13%
Researcher 7 10%
Student > Bachelor 6 8%
Other 12 17%
Unknown 16 23%
Readers by discipline Count As %
Medicine and Dentistry 40 56%
Nursing and Health Professions 3 4%
Physics and Astronomy 2 3%
Linguistics 1 1%
Biochemistry, Genetics and Molecular Biology 1 1%
Other 5 7%
Unknown 19 27%

Attention Score in Context

This research output has an Altmetric Attention Score of 427. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 31 March 2017.
All research outputs
#14,888
of 9,272,034 outputs
Outputs from Radiation Oncology
#1
of 1,164 outputs
Outputs of similar age
#1,192
of 255,180 outputs
Outputs of similar age from Radiation Oncology
#1
of 11 outputs
Altmetric has tracked 9,272,034 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 1,164 research outputs from this source. They receive a mean Attention Score of 1.9. This one has done particularly well, scoring higher than 99% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 255,180 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 11 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 90% of its contemporaries.