PMID- 37305473 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230613 IS - 2405-8440 (Print) IS - 2405-8440 (Electronic) IS - 2405-8440 (Linking) VI - 9 IP - 5 DP - 2023 May TI - Longitudinal analysis of thoracic aortic expansion in non-syndromic real-world patients. PG - e15823 LID - 10.1016/j.heliyon.2023.e15823 [doi] LID - e15823 AB - Remodeling of the thoracic aorta is commonly seen and viewed as a precursor to an aortic aneurysm. However, while aneurysms have been shown to expand at a rate of approximately 1 mm annually, the expansion of the pre-aneurysmal aorta is poorly characterized, especially in relation to age, gender, and aortic size per se. We identified patients that had undergone echocardiography at least twice at a large university medical center. Diagnosis codes, medications, and blood test results were obtained from hospital records. Syndromic patients were excluded (e.g., Marfan's syndrome, bicuspid aortic valve). Final population comprised n = 24,928 patients (median age 61.2 years (inter-quartile range (IQR): 50.6-71.5); 55.8% males) that had undergone a median of 3 echocardiograms (2-4; range 2-27) during a median of 4.0 years (IQR: 2.3-6.2). Hypertension was present in 39.6% of patients and diabetes in 20.7%, median LV ejection fraction was 56.0% (IQR: 41.0-62.0). Aortic size measurements were analyzed in mixed models while clustering on individual patients. Mean expansion was determined for sinus of Valsalva as 1.93 (95% confidence interval; CI(95): 1.87-1.99) mm per decade, and for ascending aorta as 1.76 (CI(95): 1.70-1.82) mm per decade. Faster expansion was found in males, with larger aortic size, and younger age (p for interaction <0.05 for all). In conclusion, expansion of the thoracic aorta, in real world, non-syndromic patients, is slow and averages <2 mm per decade. This will help to inform management of this large patient group. CI - (c) 2023 The Authors. FAU - Ng, Josiah AU - Ng J AD - Yong Loo Lin School of Medicine, National University of Singapore, Singapore. FAU - Ewe, See Hooi AU - Ewe SH AD - Department of Cardiology, National Heart Centre Singapore, Singapore. FAU - Tan, Ju Le AU - Tan JL AD - Department of Cardiology, National Heart Centre Singapore, Singapore. FAU - Chao, Victor Tt AU - Chao VT AD - Department of Cardiology, National Heart Centre Singapore, Singapore. FAU - Ding, Zee Pin AU - Ding ZP AD - Department of Cardiology, National Heart Centre Singapore, Singapore. FAU - Ling, Lieng-Hsi AU - Ling LH AD - Yong Loo Lin School of Medicine, National University of Singapore, Singapore. AD - Department of Cardiology, National University Heart Centre Singapore, Singapore. FAU - Sin, Kenny Yk AU - Sin KY AD - Department of Cardiology, National Heart Centre Singapore, Singapore. FAU - Chua, Terrance Sj AU - Chua TS AD - Department of Cardiology, National Heart Centre Singapore, Singapore. FAU - Sahlen, Anders AU - Sahlen A AD - Department of Cardiology, National Heart Centre Singapore, Singapore. AD - Karolinska Institutet, Stockholm, Sweden. LA - eng PT - Journal Article DEP - 20230425 PL - England TA - Heliyon JT - Heliyon JID - 101672560 PMC - PMC10256846 OTO - NOTNLM OT - Aorta OT - Arterial disease OT - Echocardiography COIS- The authors declare the following financial interests/personal relationships which may be considered as potential competing interests. EDAT- 2023/06/12 06:42 MHDA- 2023/06/12 06:43 PMCR- 2023/04/25 CRDT- 2023/06/12 04:24 PHST- 2023/03/18 00:00 [received] PHST- 2023/04/17 00:00 [revised] PHST- 2023/04/24 00:00 [accepted] PHST- 2023/06/12 06:43 [medline] PHST- 2023/06/12 06:42 [pubmed] PHST- 2023/06/12 04:24 [entrez] PHST- 2023/04/25 00:00 [pmc-release] AID - S2405-8440(23)03030-X [pii] AID - e15823 [pii] AID - 10.1016/j.heliyon.2023.e15823 [doi] PST - epublish SO - Heliyon. 2023 Apr 25;9(5):e15823. doi: 10.1016/j.heliyon.2023.e15823. eCollection 2023 May.