Endovascular treatment of aortic coarctation: long-term effects on hypertension

Carmine Musto1, Alberta Cifarelli, Edoardo Pucci

  • 1Interventional Cardiology Unit, S. Camillo/Forlanini Hospital, Circonvallazione Gianicolense, 87, 00151 Rome, Italy.

Insights

Endovascular treatment for aortic coarctation (CoA) is safe in adolescents and adults, but 33% experienced persistent hypertension. Long-term monitoring, including exercise tests, is crucial for managing blood pressure after CoA repair.

Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Pediatric Cardiology

Background:

  • Aortic coarctation (CoA) management via endovascular techniques is established as safe.
  • Limited data exist on the long-term efficacy of endovascular CoA treatment in resolving hypertension.
  • Adolescent and adult patients with CoA require evaluation for long-term outcomes after endovascular intervention.

Purpose of the Study:

  • To assess the immediate and long-term clinical and hemodynamic outcomes of endovascular treatment for aortic coarctation (CoA) in adolescent and adult patients.
  • To evaluate the effectiveness of endovascular CoA repair in managing hypertension.
  • To determine the safety and durability of transcatheter interventions for CoA.

Main Methods:

  • A consecutive series of 21 adolescent and adult patients with CoA underwent successful transcatheter intervention.
  • Follow-up included cardiological examinations, blood pressure (BP) assessment, echocardiography, 24-hour ambulatory BP monitoring (ABP), exercise testing, and spiral computed tomography.
  • Hemodynamic parameters, including CoA diameter, stenosis degree, and Doppler gradient, were measured pre- and post-intervention.

Main Results:

  • Successful endovascular repair significantly reduced CoA diameter and stenosis, with Doppler gradients decreasing from 58.8+/-16.9 to 10.5+/-4.9 mmHg (p<0.001).
  • Left ventricular mass also decreased post-intervention (p<0.001).
  • Despite treatment, 33% of patients (7/21) exhibited persistent hypertension at follow-up, with 14% hypertensive on ABP monitoring and 22% showing pathological BP response during exercise tests. The mean number of antihypertensive medications decreased from 1.5 to 0.5 (p<0.05).

Conclusions:

  • Endovascular treatment for native or recurrent aortic coarctation in adolescents and adults is a safe procedure.
  • A significant proportion (33%) of patients experience persistent hypertension post-intervention, underscoring the need for lifelong monitoring.
  • Meticulous clinical follow-up, including exercise testing, is essential to monitor blood pressure response and assess effort tolerance in patients treated for CoA.
Abstract

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