Evidence map›Paper›PMID 30674327›Full record

ArticleJournal of cardiothoracic surgery2019

Adult lung transplantation case-volume and in-hospital and long-term mortality in Korea.

Susie Yoon, Eun Jin Jang, Ga Hee Kim, Dal Ho Kim, Tae-Yoon Lim, Hannah Lee, Ho Geol Ryu

Abstract read
In one paragraph

Article in Journal of cardiothoracic surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. 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.

Susie YoonDepartment of Anaesthesiology and Pain Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
Eun Jin JangDepartment of Information Statistics, Andong National University, 1375 Gyeongdong-ro, Andong-si, Gyeongsangbuk-do, 36729, South Korea.
Ga Hee KimDepartment of Statistics, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea.
Dal Ho KimDepartment of Statistics, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea.
Tae-Yoon LimDepartment of Anaesthesiology and Pain Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
Hannah LeeDepartment of Anaesthesiology and Pain Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
Ho Geol RyuDepartment of Anaesthesiology and Pain Medicine, Seoul National University College of Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea. hogeol@gmail.com.ORCID http://orcid.org/0000-0001-8952-6049

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe inverse relationship between case-volume and surgical mortality has been reported in complex surgical procedures. The aim of this study was to evaluate the effect of case-volume on mortality after lung transplantation in Korea.

methodsThe National Health Insurance Service data was used to analyse all adult lung transplantations in Korea between 2007 and 2016. Institutions were categorized into low-volume (< 5 lung transplantations/year) centers or high-volume (≥ 5 lung transplantations/year) centers. Risk-adjusted in-hospital mortality and long-term survival according to case-volume was evaluated.

resultsA total of 315 adult recipients underwent lung transplantation at 7 centers. The odds ratio for in-hospital mortality in low-volume centers was similar to high-volume centers (OR, 1.496; 95% CI, 0.81-2.76; p = 0.197). Log-rank analysis of Kaplan-Meier curves according to case-volume also did not show a difference in long-term survival between high- and low-volume centers (p = 0.052).

conclusionsThere was no association between case-volume and in-hospital mortality after lung transplantation in Korea, although there was a tendency towards better long-term survival associated with high-volume centers.

Indexed as

AdultCohort StudiesFemaleHospital MortalityHospitals, High-VolumeHospitals, Low-VolumeHumansLung TransplantationMaleMiddle AgedRepublic of KoreaRetrospective StudiesSurvival AnalysisYoung AdultCase-volumeIn-hospital mortalityLung transplantation

Identifiers

PMID30674327
PMCPMC6343357

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.