Evidence map›Paper›PMID 42752675›Full record

ArticleSurgery today2026

Predictive significance of preoperative prognostic nutritional index after surgery for clinical T4 lung cancer.

Isamu Watanabe, Kazuya Takamochi, Aritoshi Hattori, Mariko Fukui, Takeshi Matsunaga, Hisashi Tomita, Kenji Suzuki

Abstract read
PubMed Publisher
In one paragraph

Article in Surgery today, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Isamu WatanabeDepartment of General Thoracic Surgery, Juntendo University School of Medicine, 1-3 Hongo 3-Chome, Bunkyo-Ku, Tokyo, 113-8431, Japan.
Kazuya TakamochiDepartment of General Thoracic Surgery, Juntendo University School of Medicine, 1-3 Hongo 3-Chome, Bunkyo-Ku, Tokyo, 113-8431, Japan.
Aritoshi HattoriDepartment of General Thoracic Surgery, Juntendo University School of Medicine, 1-3 Hongo 3-Chome, Bunkyo-Ku, Tokyo, 113-8431, Japan.
Mariko FukuiDepartment of General Thoracic Surgery, Juntendo University School of Medicine, 1-3 Hongo 3-Chome, Bunkyo-Ku, Tokyo, 113-8431, Japan.
Takeshi MatsunagaDepartment of General Thoracic Surgery, Juntendo University School of Medicine, 1-3 Hongo 3-Chome, Bunkyo-Ku, Tokyo, 113-8431, Japan.
Hisashi TomitaDepartment of General Thoracic Surgery, Juntendo University School of Medicine, 1-3 Hongo 3-Chome, Bunkyo-Ku, Tokyo, 113-8431, Japan.
Kenji SuzukiDepartment of General Thoracic Surgery, Juntendo University School of Medicine, 1-3 Hongo 3-Chome, Bunkyo-Ku, Tokyo, 113-8431, Japan. kjsuzuki@juntendo.ac.jp.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study explored the clinical and prognostic value of the preoperative prognostic nutritional index (PNI) in patients undergoing surgery for clinical (c)T4 lung cancer, focusing on postoperative morbidity, recurrence, and the survival.

methodsData from 120 patients who underwent resection for cT4 lung cancer (July 2008 and December 2015) were retrospectively reviewed. The patients were divided into low- (≤ 45, n = 63) and high- (> 45, n = 57) PNI groups. The primary outcomes included complication rate, recurrence-free survival (RFS), and overall survival (OS).

resultsThe median age of the patients was 68 years (82% male). Pneumonectomy was performed in 30% of patients, and R0 resection was achieved in 88%. Thirty-day mortality was 3.3%. A low PNI was associated with more severe complications (P = 0.024), reoperation (P = 0.032), non-infectious complications (P = 0.041), and longer hospital stay (P = 0.009). The 5-year RFS and OS rates were lower in the low-PNI group (RFS: 29.2% vs. 48.1%, P = 0.033; OS: 38.5% vs. 55.4%, P = 0.012). A low PNI independently predicted poorer OS (hazard ratio [HR], 1.69; 95% confidence interval [CI], 1.02-2.79; P = 0.040). Non-lung cancer-related mortality was higher in the low-PNI group than in the high-PNI group (27.5% vs. 11.5%, P = 0.041), mainly due to respiratory complications.

conclusionsThe preoperative PNI predicts postoperative morbidity and long-term outcomes in patients with cT4 lung cancer, aiding risk stratification and management.

Indexed as

Clinical T4 lung cancerOverall survivalPostoperative complicationPrognostic nutritional indexThoracic surgery

Identifiers

PMID42752675

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.