The roles of the main pulmonary artery diameter, ascending aorta diameter, and their ratio in the prognosis of dyspneic patients

İsmail Erkan Aydin; Nalan Kozaci

doi:10.17944/interdiscip.1790148

The roles of the main pulmonary artery diameter, ascending aorta diameter, and their ratio in the prognosis of dyspneic patients

Abstract

Objective: This study aimed to evaluate the prognostic significance of the main pulmonary artery diameter (mPAD), ascending aorta diameter (AAD), and the mPAD/AAD ratio in dyspneic patients. Method: In this retrospective study, patients aged >18 years who presented to the emergency department (ED) with dyspnea and underwent thoracic computed tomography (CT) between July 1, 2021, and December 31, 2022, were included. Demographic data, clinical outcomes, and radiological measurements were analyzed. Results: A total of 372 patients were enrolled, of whom 59 (16%) died during hospitalization. Non-survivors had significantly higher mPAD and mPAD/AAD ratios compared with survivors. Receiver operating characteristic analysis demonstrated that mPAD was the strongest predictor of in-hospital mortality, with an area under the curve of 0.72. Using a cut-off value of ≥29 mm, mPAD yielded a sensitivity of 81%, specificity of 52%, positive predictive value (PPV) of 24%, and negative predictive value (NPV) of 94%. Conclusion: The mPAD and the mPAD/AAD ratio can be used as reliable indicators of prognosis in patients presenting with dyspnea, such as predicting the need for mechanical ventilation, intensive care unit admission, and in-hospital mortality.

Keywords

Supporting Institution

None.

Ethical Statement

Ethics Committee Approval: Alanya Alaaddin Keykubat University Clinical Research Ethics Committee, Decision number: 2-15 Date: February 15, 2023.

Thanks

None.

References

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Details

Primary Language

English

Subjects

Emergency Medicine

Journal Section

Research Article

Authors

İsmail Erkan Aydin
0000-0003-3552-5459
Türkiye

Nalan Kozaci ^*
0000-0001-7758-3839
Türkiye

Publication Date

April 16, 2026

Submission Date

September 24, 2025

Acceptance Date

December 21, 2025

Published in Issue

Year 2026 Volume: 17 Number: 57

DOI

https://doi.org/10.17944/interdiscip.1790148

IZ

https://izlik.org/JA29SN65PB

Cite

RIS / Bibtex

APA

Aydin, İ. E., & Kozaci, N. (2026). The roles of the main pulmonary artery diameter, ascending aorta diameter, and their ratio in the prognosis of dyspneic patients. Interdisciplinary Medical Journal, 17(57), 19-24. https://doi.org/10.17944/interdiscip.1790148

AMA

1.Aydin İE, Kozaci N. The roles of the main pulmonary artery diameter, ascending aorta diameter, and their ratio in the prognosis of dyspneic patients. Interdiscip Med J. 2026;17(57):19-24. doi:10.17944/interdiscip.1790148

Chicago

Aydin, İsmail Erkan, and Nalan Kozaci. 2026. “The Roles of the Main Pulmonary Artery Diameter, Ascending Aorta Diameter, and Their Ratio in the Prognosis of Dyspneic Patients”. Interdisciplinary Medical Journal 17 (57): 19-24. https://doi.org/10.17944/interdiscip.1790148.

EndNote

Aydin İE, Kozaci N (April 1, 2026) The roles of the main pulmonary artery diameter, ascending aorta diameter, and their ratio in the prognosis of dyspneic patients. Interdisciplinary Medical Journal 17 57 19–24.

IEEE

[1]İ. E. Aydin and N. Kozaci, “The roles of the main pulmonary artery diameter, ascending aorta diameter, and their ratio in the prognosis of dyspneic patients”, Interdiscip Med J, vol. 17, no. 57, pp. 19–24, Apr. 2026, doi: 10.17944/interdiscip.1790148.

ISNAD

Aydin, İsmail Erkan - Kozaci, Nalan. “The Roles of the Main Pulmonary Artery Diameter, Ascending Aorta Diameter, and Their Ratio in the Prognosis of Dyspneic Patients”. Interdisciplinary Medical Journal 17/57 (April 1, 2026): 19-24. https://doi.org/10.17944/interdiscip.1790148.

JAMA

1.Aydin İE, Kozaci N. The roles of the main pulmonary artery diameter, ascending aorta diameter, and their ratio in the prognosis of dyspneic patients. Interdiscip Med J. 2026;17:19–24.

MLA

Aydin, İsmail Erkan, and Nalan Kozaci. “The Roles of the Main Pulmonary Artery Diameter, Ascending Aorta Diameter, and Their Ratio in the Prognosis of Dyspneic Patients”. Interdisciplinary Medical Journal, vol. 17, no. 57, Apr. 2026, pp. 19-24, doi:10.17944/interdiscip.1790148.

Vancouver

1.İsmail Erkan Aydin, Nalan Kozaci. The roles of the main pulmonary artery diameter, ascending aorta diameter, and their ratio in the prognosis of dyspneic patients. Interdiscip Med J. 2026 Apr. 1;17(57):19-24. doi:10.17944/interdiscip.1790148