Evidence map›Paper›PMID 27484067›Full record

ArticleSurgery today2017

Does segmentectomy really preserve the pulmonary function better than lobectomy for patients with early-stage lung cancer?

Hidemi Suzuki, Junichi Morimoto, Teruaki Mizobuchi, Taiki Fujiwara, Kaoru Nagato, Takahiro Nakajima, Takekazu Iwata, Shigetoshi Yoshida, Ichiro Yoshino

Abstract read
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In one paragraph

Article in Surgery today, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 5 pooled it
3.6field-weighted citation impact, top 7% 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

38 citing papers in PubMed, 5 syntheses or guidelines pooled it, 51 citations in OpenAlex.

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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

9 authors at 1 institution in 1 country.

Hidemi SuzukiDepartment of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan. hidemisuzukidesu@yahoo.co.jp.
Junichi MorimotoDepartment of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
Teruaki MizobuchiDepartment of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
Taiki FujiwaraDepartment of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
Kaoru NagatoDepartment of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
Takahiro NakajimaDepartment of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
Takekazu IwataDepartment of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
Shigetoshi YoshidaDepartment of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
Ichiro YoshinoDepartment of General Thoracic Surgery, Chiba University Graduate School of Medicine, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
Chiba University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeRecently, segmentectomy has been considered as an alternative to lobectomy in early peripheral non-small lung cancer (NSCLC); however, controversy has remained regarding the long-term functional advantage after segmentectomy. The aim of this study was to analyze the postoperative lung function after segmentectomy and lobectomy for non-small cell lung cancer.

methodsPatients with p-T1aN0M0 NSCLC who had undergone segmentectomy (n = 37) or lobectomy (n = 33) were retrospectively analyzed. The ratios of postoperative to preoperative forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1) were defined as the recovery rates. The radiological lung volume and weight were evaluated before and more than 6 months after surgery, and the postoperative values were compared with the predicted values that were calculated from the preoperative values, subtracting the resected lobes or segments.

resultsThe clinical characteristics, including the preoperative lung function showed no significant differences between the groups. No statistical differences were recognized in the trend lines for recovery ratios of FVC and FEV1.0 (P = 0.96 and P = 0.33). The recovery ratios for radiologic lung volume and weight showed no significant differences (P = 0.46 and P = 0.22). The postoperative lung volume and weight were almost the same as the predicted values after segmentectomy, whereas those after lobectomy were significantly higher than the predicted values.

conclusionsNo functional advantage for segmentectomy was observed during long-term follow-up, possibly due to compensatory lung growth after lobectomy.

Indexed as

Respiratory Function TestsAgedCarcinoma, Non-Small-Cell LungFemaleForced Expiratory VolumeHumansLungLung NeoplasmsMaleMiddle AgedNeoplasm StagingOrgan Sparing TreatmentsPneumonectomyRetrospective StudiesTomography, X-Ray ComputedTreatment OutcomeCompensatory growthLobectomyNon-small cell lung cancerPulmonary functionSegmentectomy

Identifiers

PMID27484067
OpenAlexW2477736299

What OpenQuestion holds

Textmetadata
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.