Evidence map›Paper›PMID 40049724›Full record

Observational studyThe European respiratory journal2025

Survival trends in patients with chronic thromboembolic pulmonary hypertension: an observational study.

Takatoyo Kiko, Ryotaro Asano, Yusuke Yoshikawa, Hiroyuki Endo, Shinya Fujisaki, Ryo Takano, Mitsumasa Akao, Naruhiro Nishi, Hiroya Hayashi, Soshiro Ogata and 10 more

Abstract readObservational Study
In one paragraph

Observational study in The European respiratory journal, 2025. 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. Observational
  2. Article
  3. Article
  4. Review
  5. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

20 authors.

Takatoyo KikoDivision of Pulmonary Circulation, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan.
Ryotaro AsanoDivision of Pulmonary Circulation, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan.
Yusuke YoshikawaDepartment of Biostatistics, National Cerebral and Cardiovascular Center, Osaka, Japan.
Hiroyuki EndoDivision of Pulmonary Circulation, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan.
Shinya FujisakiDivision of Pulmonary Circulation, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan.ORCID https://orcid.org/0009-0006-4477-2637
Ryo TakanoDivision of Pulmonary Circulation, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan.ORCID https://orcid.org/0000-0003-4078-3479
Mitsumasa AkaoDivision of Pulmonary Circulation, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan.
Naruhiro NishiDivision of Pulmonary Circulation, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan.
Hiroya HayashiDivision of Pulmonary Circulation, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan.
Soshiro OgataDepartment of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center, Osaka, Japan.
Akiyuki KotokuDepartment of Radiology, National Cerebral and Cardiovascular Center, Osaka, Japan.
Hiroki HorinouchiDepartment of Radiology, National Cerebral and Cardiovascular Center, Osaka, Japan.
Yosuke InoueDepartment of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, Osaka, Japan.
Jin UedaDivision of Pulmonary Circulation, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan.
Yoshimasa SeikeDepartment of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, Osaka, Japan.
Akihiro TsujiDivision of Pulmonary Circulation, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan.
Tetsuya FukudaDepartment of Radiology, National Cerebral and Cardiovascular Center, Osaka, Japan.
Kunihiro NishimuraDepartment of Preventive Medicine and Epidemiology, National Cerebral and Cardiovascular Center, Osaka, Japan.
Hitoshi MatsudaDepartment of Cardiovascular Surgery, National Cerebral and Cardiovascular Center, Osaka, Japan.
Takeshi OgoDivision of Pulmonary Circulation, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan tak@ncvc.go.jp.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTreatment options for patients with chronic thromboembolic hypertension (CTEPH) have increased over the past decade. However, it is unknown whether the outcomes of patients with CTEPH have changed as well.

methodsThis retrospective study analysed the data of 834 patients with CTEPH, categorised into early (April 1980-December 1999), middle (January 2000-September 2010) and current (October 2010-December 2023) eras. The primary end-point was all-cause mortality. Multivariable Cox proportional hazards models were used to assess changes in all-cause mortality after adjusting for confounding variables.

results95, 210 and 529 patients were from the early, middle and current eras, respectively. The proportion of patients who did not receive CTEPH therapy decreased from 65% in the early era to 36% and 3% in the middle and current eras, respectively. Meanwhile, the adoption of multimodal treatment increased from 0% to 58% over time. The Kaplan-Meier analysis revealed significant improvements in overall survival (log-rank p<0.001). The 5-year survival rates improved from 68% in the early era to 85% and 93% in the middle and current eras, respectively. The adjusted hazard ratios for mortality were 0.291 (95% CI 0.154-0.550; p<0.001) for the early

conclusionThe long-term prognosis of patients with CTEPH has significantly improved in recent decades.

Indexed as

Hypertension, PulmonaryPulmonary EmbolismAdultAgedChronic DiseaseFemaleHumansKaplan-Meier EstimateMaleMiddle AgedMultivariate AnalysisProportional Hazards ModelsRetrospective StudiesSurvival Rate

Identifiers

PMID40049724
PMCPMC12256805

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.