Evidence map›Paper›PMID 35242857›Full record

ArticleAnnals of translational medicine2022

Learning curve for uniportal video-assisted thoracoscopic anatomical segmentectomy.

Lei Chen, Yumei Shen, Shanzhou Duan, Xing Jin, Yifei Wang, Yonghua Sang, Yongbing Chen

Open access · diamondAbstract read
In one paragraph

Article in Annals of translational medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 11% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. Review
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  4. Surgical Safety of Uniportal versus Multiportal VATS Segmentectomy during Institutional Adoption: Differential Impact by Lobar Location.Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia · 2026
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  9. Uniportal video-assisted thoracic surgery: segmentectomy versus lobectomy-early outcomes.European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery · 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

7 authors at 2 institutions in 1 country.

Lei Chen *Department of Thoracic Surgery, the Second Affiliated Hospital of Soochow University, Suzhou, China.
Yumei Shen *Operation Room Department, the Second Affiliated Hospital of Soochow University, Suzhou, China.
Shanzhou Duan *Department of Thoracic Surgery, the Second Affiliated Hospital of Soochow University, Suzhou, China.
Xing JinDepartment of Thoracic Surgery, the Second Affiliated Hospital of Soochow University, Suzhou, China.
Yifei WangDepartment of Thoracic Surgery, the Second Affiliated Hospital of Soochow University, Suzhou, China.
Yonghua Sang *Department of Thoracic Surgery, the Second Affiliated Hospital of Soochow University, Suzhou, China.
Yongbing Chen *Department of Thoracic Surgery, the Second Affiliated Hospital of Soochow University, Suzhou, China.
Soochow University · CNSecond Affiliated Hospital of Soochow University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAnatomical segmentectomy by uniportal video-assisted thoracoscopic surgery (U-VATS) is a delicate surgical procedure. Hitherto, only few studies have assessed the learning curves of anatomical segmentectomy by U-VATS, with varying data available. The present study aimed to investigate the learning curve and clinical advantages for U-VATS segmentectomy.

methodsThe medical records of patients who underwent U-VATS or non-U-VATS segmentectomy between August 2017 and May 2020 were retrospectively reviewed. Cumulative sum (CUSUM) analysis was employed to illustrate the learning curve of U-VATS segmentectomy. Perioperative parameters were used to determine the structural intervals of the learning curve, and to compare U-VATS and non-U-VATS segmentectomy.

resultsIn total, 122 patients receiving U-VATS segmentectomy and 98 patients receiving non-VATS segmentectomy were included. Of these, 116 patients underwent successful U-VATS segmentectomy, while the other six patients underwent conversions. The structural intervals of 20-29 cases and 58-63 cases were determined as the threshold according to the CUSUM analyses. The learning process of U-VATS segmentectomy was therefore divided into three phases. Interestingly, the perioperative parameters differed significantly between Phases 1 and 3, including operative time (Op-T), postoperative hospital stays (Po-Hst), postoperative thoracic drainage (Po-D), and operative failure (Po-F) rates (P<0.05). Moreover, U-VATS segmentectomy in Phase 3 was associated with significantly shorter Po-Hst and Op-T, less Po-D, and reduced postoperative pain compared with non-U-VATS (P<0.05).

conclusionsU-VATS segmentectomy is an ideal alternative to non-U-VATS segmentectomy. Surgeons can preliminarily complete U-VATS anatomical segmentectomy after performing 20-29 cases, and can master the surgical techniques after completing 58-63 cases.

Indexed as

anatomical segmentectomycumulative sum analysislearning curveUniportal video-assisted thoracoscopic surgery (U-VATS)

Identifiers

PMID35242857
PMCPMC8825550
OpenAlexW4205781420

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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.