Evidence map›Paper›PMID 37065561›Full record

ArticleJournal of thoracic disease2023

A retrospective analysis of treatment selection and risk factors of treatment failure and recurrence in patients with spontaneous pneumothorax.

Takahito Nakano, Hiroyuki Kaneda, Kento Fukumoto, Hiroshi Matsui, Yohei Taniguchi, Tomohito Saito, Tomohiro Murakawa

Open access · diamondAbstract read
In one paragraph

Article in Journal of thoracic disease, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 31% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 2 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. 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

7 authors at 1 institution in 1 country.

Takahito NakanoDepartment of Thoracic Surgery, Kansai Medical University, Hirakata, Japan.
Hiroyuki KanedaDepartment of Thoracic Surgery, Kansai Medical University, Hirakata, Japan.
Kento FukumotoDepartment of Thoracic Surgery, Kansai Medical University, Hirakata, Japan.
Hiroshi MatsuiDepartment of Thoracic Surgery, Kansai Medical University, Hirakata, Japan.
Yohei TaniguchiDepartment of Thoracic Surgery, Kansai Medical University, Hirakata, Japan.
Tomohito SaitoDepartment of Thoracic Surgery, Kansai Medical University, Hirakata, Japan.
Tomohiro MurakawaDepartment of Thoracic Surgery, Kansai Medical University, Hirakata, Japan.
Kansai Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Conservative observation with/without oxygen supplementation, aspiration, or tube drainage is selected as an initial treatment for spontaneous pneumothorax. In this study, we examined the efficacy of initial management for cessation of air leak and prevention of recurrence, with consideration of the degree of lung collapse. Methods: Spontaneous pneumothorax in patients who underwent initial management in our institute between January 2006 and December 2015 were included in this retrospective, single-institutional study. Multivariate analyses were conducted to identify risk factors related to the treatment failure after initial treatment and those related to ipsilateral recurrence after last treatment. Results: Of 668 episodes of 522 patients, 198 events were initially treated by observation, 22 by aspiration, and 448 by tube drainage. Successive outcome for cessation of air leak in initial treatment was achieved in 170 (85.9%), 18 (81.8%), and 289 (64.5%) events, respectively. In the multivariate analysis for predicting failure after first treatment, previous episode of ipsilateral pneumothorax [odds ratio (OR) 1.9; 95% confidence interval (CI): 1.3-2.9; P<0.01], high degree of lung collapse (OR 2.1; 95% CI: 1.1-4.2; P=0.032), and bulla formation (OR 2.6; 95% CI: 1.7-4.1; P<0.0001) were the significant risk factors for treatment failure. Recurrence of ipsilateral pneumothorax was observed in 126 (18.9%) cases: 18 of 153 cases (11.8%) in the observation group, 3 of 18 cases in the aspiration group (16.7%), 67 of 262 cases in the tube drainage group (25.6%), 15 of 63 cases in the pleurodesis group (23.8%), and 23 of 170 cases in the surgery group (13.5%). In the multivariate analysis for predicting recurrence, previous episode of ipsilateral pneumothorax was a significant risk factor [hazard ratio (HR) 1.8; 95% CI: 1.2-2.5; P<0.001]. Conclusions: Predictive factors for failure after initial treatment were recurrence of ipsilateral pneumothorax, high degree of lung collapse, and radiological evidence of bullae. The predictive factor for recurrence after the last treatment was the previous episode of ipsilateral pneumothorax. Observation was superior to tube drainage in success rate to cease air leak and recurrence rate, although this effect was not statistically significant.

Indexed as

air leakageinterventionobservationPneumothoraxrecurrence

Identifiers

PMID37065561
PMCPMC10089842
OpenAlexW4323339009

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.