Evidence map›Paper›PMID 34844592›Full record

ArticleBMC pulmonary medicine2021

Waiting time and mortality rate on lung transplant candidates in Japan: a single-center retrospective cohort study.

Takashi Hirama, Miki Akiba, Tatsuaki Watanabe, Yui Watanabe, Hirotsugu Notsuda, Hisashi Oishi, Hiromichi Niikawa, Yoshinori Okada

Abstract read
In one paragraph

Article in BMC pulmonary medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

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  11. Efficacy and safety of mRNA SARS-CoV-2 vaccines in lung transplant recipients.Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy · 2022
    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

8 authors.

Takashi HiramaDepartment of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University Hospital, 4-1 Seiryomachi, Sendai, Miyagi, 980-8575, Japan. takashi.hirama.b5@tohoku.ac.jp.ORCID http://orcid.org/0000-0002-9390-5057
Miki AkibaDivision of Organ Transplantation, Tohoku University Hospital, 1-1 Seiryomachi, Sendai, Miyagi, 980-8574, Japan.ORCID http://orcid.org/0000-0002-1679-1180
Tatsuaki WatanabeDepartment of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University Hospital, 4-1 Seiryomachi, Sendai, Miyagi, 980-8575, Japan.ORCID http://orcid.org/0000-0001-9104-6175
Yui WatanabeDepartment of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University Hospital, 4-1 Seiryomachi, Sendai, Miyagi, 980-8575, Japan.ORCID http://orcid.org/0000-0003-0155-8754
Hirotsugu NotsudaDepartment of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University Hospital, 4-1 Seiryomachi, Sendai, Miyagi, 980-8575, Japan.ORCID http://orcid.org/0000-0003-4601-2528
Hisashi OishiDepartment of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University Hospital, 4-1 Seiryomachi, Sendai, Miyagi, 980-8575, Japan.ORCID http://orcid.org/0000-0002-1381-6362
Hiromichi NiikawaDepartment of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University Hospital, 4-1 Seiryomachi, Sendai, Miyagi, 980-8575, Japan.ORCID http://orcid.org/0000-0001-7761-6637
Yoshinori OkadaDepartment of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University Hospital, 4-1 Seiryomachi, Sendai, Miyagi, 980-8575, Japan.ORCID http://orcid.org/0000-0001-7739-7657

Funding

Japan Society for the Promotion of Science 20K08509Takeda Science Foundation The visionary researchYoung Investigators of Tohoku University Hospital The Clinical Research Promotion Program
6 · The paper itself

Abstract

backgroundAs lung transplantation (LTX) is a valuable treatment procedure for end-stage pulmonary disease, delayed referral to a transplant center should be avoided. We aimed to conduct a single-center analysis of the survival time after listing for LTX and waitlist mortality in each disease category in a Japanese population.

methodsWe included patients listed for LTX at Tohoku University Hospital from January 2007 to December 2020 who were followed up until March 2021. Pulmonary disease was categorized into the Obstructive, Vascular, Suppurative, Fibrosis, and Allogeneic groups. Risk factors for waitlist mortality were assessed using a Cox proportional hazards model. The Kaplan-Meier method was used to model time to death.

resultsWe included 269 LTX candidates. Of those, 100, 72, and 97 patients were transplanted, waiting, and dead, respectively. The median time to LTX and time to death were 796 days (interquartile range [IQR] 579-1056) and 323 days (IQR 129-528), respectively. The Fibrosis group showed the highest mortality (50.9%; p < .001), followed by the Allogeneic (35.0%), Suppurative (33.3%), Vascular (32.1%), and Obstructive (13.1%) groups. The Fibrosis group showed a remarkable risk for waitlist mortality (hazard ratio 3.32, 95% CI 2.11-4.85).

conclusionsIn Japan, the waiting time is extremely long and candidates with Fibrosis have high mortality. There is a need to document outcomes based on the underlying disease for listed LTX candidates to help determine the optimal timing for listing patients based on the estimated local waiting time.

Indexed as

AdultAgedFemaleHumansJapanLung DiseasesLung TransplantationMaleMiddle AgedRisk FactorsTimeWaiting ListsJapanJapan Organ Transplant NetworkLung transplantationMortalityWaiting time

Identifiers

PMID34844592
PMCPMC8630869

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Registered trials

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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.