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. 2025 Apr 16;15(4):656.
doi: 10.3390/life15040656.

Association of Plasma Renin Activity with Risk of Late Hypertension in Pediatric Patients with Early Aortic Coarctation Repair: A Retrospective Study

Irina-Maria Margarint  1 , Tammam Youssef  2 , Iulian Rotaru  2 , Alexandru Popescu  2 , Olguta Untaru  2 , Cristina Filip  1 , Ovidiu Stiru  1 , Ancuta-Alina Constantin  1 , Vlad Anton Iliescu  1 , Radu Vladareanu  1
Affiliations

Association of Plasma Renin Activity with Risk of Late Hypertension in Pediatric Patients with Early Aortic Coarctation Repair: A Retrospective Study

Irina-Maria Margarint et al. Life (Basel). .

Abstract

Background: Coarctation of the aorta (CoA) represents 5% to 7% of all congenital heart diseases. Surgery and interventional methods offer great short-term results, but the occurrence of postoperative hypertension associated with cardiovascular and cerebral vascular disease increases mortality and morbidity in the long term. This study aims to investigate risk factors associated with postoperative hypertension in pediatric patients with early repair of isolated aortic coarctation.

Subjects and methods: A total of 41 patients with isolated aortic coarctation were included. The mean age was 35.3 ± 46.34 days. Early repair under one month was performed in 65.9% of patients. In all except two patients, end-to-end anastomosis was used. A follow-up at two years revealed an incidence of 58.5% of hypertension. Using logistic regression, preoperative renin plasma concentration above the upper normal level (46.1 μUI/mL) was independently associated with the occurrence of hypertension (OR = 2.49, 95% CI = 2.001-5.03, p = 0.001).

Conclusion: Coarctation of the aorta is not just a simple mechanical obstruction of the aorta and should be seen and managed as a systemic disease. Abnormal preoperative renin concentrations were independently associated with the occurrence of HT at follow-up, suggesting that vascular dysfunction could play a role in hypertension development after successful CoA repair, negatively influencing the long-term prognostic of these patients.

Keywords: aortic coarctation; hypertension; neonates; renin–angiotensin system; vascular dysfunction.

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Conflict of interest statement

The authors declare no conflicts of interest.

Figures

Figure 1
Figure 1
The total number of patients included in the study after applying exclusion criteria.
See this image and copyright information in PMC

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