Evidence map›Paper›PMID 37012019›Full record

ArticleBMJ open2023

Prediction of preoperative in-hospital mortality rate in patients with acute aortic dissection by machine learning: a two-centre, retrospective cohort study.

Zhaoyu Wu, Yixuan Li, Zhijue Xu, Haichun Liu, Kai Liu, Peng Qiu, Tao Chen, Xinwu Lu

Abstract read
In one paragraph

Article in BMJ open, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
–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

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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

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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.

Zhaoyu Wu *Department of Vascular Surgery, Shanghai Jiao Tong University School of Medicine Affiliated to Ninth People's Hospital, Shanghai, China.
Yixuan Li *Big Data Research Lab, University of Waterloo, Waterloo, Ontario, Canada.
Zhijue Xu *Department of Vascular Surgery, Shanghai Jiao Tong University School of Medicine Affiliated to Ninth People's Hospital, Shanghai, China.
Haichun LiuDepartment of Automation, Shanghai Jiao Tong University, Shanghai, China.
Kai LiuBig Data Research Lab, University of Waterloo, Waterloo, Ontario, Canada.
Peng QiuDepartment of Vascular Surgery, Shanghai Jiao Tong University School of Medicine Affiliated to Ninth People's Hospital, Shanghai, China luxinwu@shsmu.edu.cn t66chen@uwaterloo.ca hiiigh4@163.com.
Tao ChenBig Data Research Lab, University of Waterloo, Waterloo, Ontario, Canada luxinwu@shsmu.edu.cn t66chen@uwaterloo.ca hiiigh4@163.com.
Xinwu LuDepartment of Vascular Surgery, Shanghai Jiao Tong University School of Medicine Affiliated to Ninth People's Hospital, Shanghai, China luxinwu@shsmu.edu.cn t66chen@uwaterloo.ca hiiigh4@163.com.ORCID 0000-0001-6503-5210

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo conduct a comprehensive analysis of demographic information, medical history, and blood pressure (BP) and heart rate (HR) variability during hospitalisation so as to establish a predictive model for preoperative in-hospital mortality of patients with acute aortic dissection (AD) by using machine learning techniques.

designRetrospective cohort study.

settingData were collected from the electronic records and the databases of Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine and the First Affiliated Hospital of Anhui Medical University between 2004 and 2018.

participants380 inpatients diagnosed with acute AD were included in the study. PRIMARY OUTCOME: Preoperative in-hospital mortality rate.

resultsA total of 55 patients (14.47%) died in the hospital before surgery. The results of the areas under the receiver operating characteristic curves, decision curve analysis and calibration curves indicated that the eXtreme Gradient Boosting (XGBoost) model had the highest accuracy and robustness. According to the SHapley Additive exPlanations analysis of the XGBoost model, Stanford type A, maximum aortic diameter >5.5 cm, high variability in HR, high variability in diastolic BP and involvement of the aortic arch had the greatest impact on the occurrence of in-hospital deaths before surgery. Moreover, the predictive model can accurately predict the preoperative in-hospital mortality rate at the individual level.

conclusionIn the current study, we successfully constructed machine learning models to predict the preoperative in-hospital mortality of patients with acute AD, which can help identify high-risk patients and optimise the clinical decision-making. Further applications in clinical practice require the validation of these models using a large-sample, prospective database. TRIAL REGISTRATION NUMBER: ChiCTR1900025818.

Indexed as

Aortic DissectionInpatientsChinaHospital MortalityHumansMachine LearningRetrospective Studiesstatistics & research methodsvascular medicinevascular surgery

Identifiers

PMID37012019
PMCPMC10083797

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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.