Evidence map›Paper›PMID 34600541›Full record

ArticleJournal of translational medicine2021

Factors affecting improvement of neurologic status evaluated by Quantitative Myasthenia Gravis Score for patients with thymomatous myasthenia gravis after extended thymectomy.

Zhu Haoshuai, Zou Jianyong, Yang Lei, Zeng Bo, Jiefei Xiao, Xin Zhang, Zhenguang Chen, Su Chunhua

Abstract read
In one paragraph

Article in Journal of translational medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–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

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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

5 citing papers in PubMed.

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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.

Zhu HaoshuaiDepartment of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Zhongshan 2ed road, Guangzhou city, Guangdong province, China.
Zou JianyongDepartment of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Zhongshan 2ed road, Guangzhou city, Guangdong province, China.
Yang LeiDepartment of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Zhongshan 2ed road, Guangzhou city, Guangdong province, China.
Zeng BoDepartment of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Zhongshan 2ed road, Guangzhou city, Guangdong province, China.
Jiefei XiaoDepartment of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Zhongshan 2ed road, Guangzhou city, Guangdong province, China.
Xin ZhangDepartment of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Zhongshan 2ed road, Guangzhou city, Guangdong province, China.
Zhenguang ChenDepartment of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Zhongshan 2ed road, Guangzhou city, Guangdong province, China.
Su ChunhuaDepartment of Thoracic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Zhongshan 2ed road, Guangzhou city, Guangdong province, China. suchh@mail.sysu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe length of time for clinical improvement of patients with thymomatous myasthenia gravis (MG) after extended thymectomy is not clear. The purpose of this study was to determine the length of time after thymectomy in patients with thymomatous MG to achieve a 3-point reduction of Quantitative Myasthenia Gravis Score (QMGS), and identify variables associated with a failure to achieve the reduction.

methodsThe records of patients with thymomatous MG who underwent extended thymectomy from January 2005 to December 2018 were retrospectively reviewed. The primary end point was a reduction of 3 points of QMGs and the secondary end point was another reduction of 3 points of QMGs.

resultsA total of 481 patients were included in the analysis, the mean age of the patients was 41.63 ± 8.55 years, and approximately 60% were male. The median time to achieve a 3 point decrease in QMGS was 6 months, and the median time to achieve another 3 point decrease was 30 months. Multivariable analysis indicated that age ≥ 42 years and Masaoka-Koga stage > I were associated with a lower probability of achieving a 3 point decrease in QMGS (HR = 0.55 and 0.65, respectively). Likewise, multivariable analysis indicated that age ≥ 42 years and Masaoka-Koga stage > I were associated with a lower probability of achieving a second 3 point decrease in QMGS (HR = 0.53 and 0.53, respectively).

conclusionsIn patients with thymomatous MG who receive thymectomy, age ≥ 42 years and Masaoka-Koga stage > I are associated with a worse prognosis and failure to achieve a 3 point decrease in QMGS.

Indexed as

Myasthenia GravisThymomaThymus NeoplasmsAdultHumansMaleMiddle AgedRetrospective StudiesThymectomyTreatment OutcomeMasaoka-Koga stageMyasthenia gravisMyasthenia gravis scoreNeurological outcomeThymectomyThymoma

Identifiers

PMID34600541
PMCPMC8487513

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