ArticleQuantitative imaging in medicine and surgery2026
Intraoperative quantitative angiography predicts midterm left subclavian artery patency after thoracic endovascular aortic repair.
Article in Quantitative imaging in medicine and surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Thoracic endovascular aortic repair (TEVAR) frequently requires coverage of the left subclavian artery (LSA) to achieve an adequate proximal landing zone, which carries the risk of LSA occlusion and associated ischaemic complications. No validated real-time intraoperative tool currently exists to assess LSA hemodynamics during TEVAR. This study aimed to identify hemodynamic predictors associated with midterm LSA patency after TEVAR involving LSA management. Methods: Patients who underwent TEVAR for aortic pathologies between April 2018 and December 2020 were retrospectively enrolled. Quantitative assessment of LSA blood flow before and after TEVAR was conducted using the angiography post-processing software, iFlow. Two key hemodynamic parameters, the differential of delayed time to peak (diff.dTTP) and peak ratio (diff.Pr) in the proximal (P), middle (M), and distal (D) areas of the LSA were extracted. LSA patency was determined through follow-up computed tomography angiography (CTA). Cox regression analysis was used to identify hemodynamic predictors for LSA patency. Results: A total of 94 patients [median age, 61 years; interquartile range (IQR), 51.00-65.75 years; 83.0% male] were included, with 7 patients (7.4%) experiencing LSA occlusion during follow-up (median duration, 1,242 days; IQR, 968-1,356 days). The diff.dTTPs were identified as independent risk factors for midterm LSA occlusion [diff.dTTP.P: hazard ratio (HR) =30.0, P<0.001; diff.dTTP.M: HR =6.1, P<0.001; diff.dTTP.D: HR =5.1, P<0.001]. These hemodynamic parameters provided incremental prognostic value for midterm LSA occlusion [diff.dTTP.P: area under the curve (AUC) =0.957; diff.dTTP.M: AUC =0.921; diff.dTTP.D: AUC =0.938]. Conclusions: iFlow provides a real-time quantitative approach for evaluating LSA hemodynamics during TEVAR. The diff.dTTP values can predict midterm LSA patency and may guide LSA management strategies during TEVAR.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.