Evidence map›Paper›PMID 34795911›Full record

ArticleJournal of thoracic disease2021

Comparison of surgical difficulty in patients with resectable non-small cell lung cancer under different neoadjuvant treatment modes: a retrospective cohort study.

Fan Zhang, Bin Qiu, Ying Ji, Wei Guo, Ning Li, Qi Xue, Shugeng Gao, Jie He

Open access · diamondAbstract read
In one paragraph

Article in Journal of thoracic disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 13% 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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. "What really works for us?" exploring therapeutic strategies for non-small cell lung cancer: an umbrella review of systematic reviews and meta-analyses.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. [Progress of Neoadjuvant Immunotherapy for Non-small Cell Lung Cancer].Zhongguo fei ai za zhi = Chinese journal of lung cancer · 2022
    Article
  12. Article
  13. Article
  14. 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

8 authors at 2 institutions in 2 countries.

Fan Zhang *Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Bin Qiu *Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Ying JiDepartment of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Wei GuoDepartment of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Ning LiDepartment of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Qi XueDepartment of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Shugeng GaoDepartment of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Jie HeDepartment of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Chinese Academy of Medical Sciences & Peking Union Medical College · CNNational Clinical Research · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies have reported on the efficacy and safety of neoadjuvant use of a programmed cell death 1 (PD-1) antibody, sintilimab, in patients with non-small cell lung cancer (NSCLC). This study aimed to further evaluate the difficulty of this surgery and the postoperative complication rates in patients with NSCLC receiving neoadjuvant sintilimab.

methodsPatients who received neoadjuvant sintilimab (200 mg) in the Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital from March 2018 to March 2019 were enrolled in the neoadjuvant immunotherapy group (NI group). Another two cohorts who did not receive sintilimab were retrospectively selected by propensity score matching (PSM) at a ratio of 1:1 in the upfront surgery (M-US) and neoadjuvant chemotherapy (M-NC) groups. The postoperative complication rate, postoperative days (PODs), and other detailed objective indicators were compared by

resultsThirty-seven patients were enrolled in each group. Postoperative complications were greater in the NI group (37.8%) than in the M-US (10.8%; P=0.013) or in the M-NC group (16.2%; P=0.036). The number of PODs (7) was greater in the NI group than in the M-US group (P=0.005). The total number of dissected lymph nodes was lower in the NI group than in the M-US group (P<0.001) or in the M-NC group (P<0.001). Lymph node dissection (LND) in the NI group was more difficult than in the M-US group (P=0.015), but intrathoracic adhesion, tumor invasion, and whole procedure difficulty were similar.

conclusionsThe administration of neoadjuvant sintilimab increased complications but did not increase the difficulty of surgery. Fewer lymph nodes were dissected in the NI group.

Indexed as

lymph node dissection (LND)Neoadjuvant immunotherapynon-small cell lung cancer (NSCLC)postoperative complicationssubjective evaluation of surgery difficulty

Identifiers

PMID34795911
PMCPMC8575808
OpenAlexW3204438329

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.