Aortic Root Geometric and Dynamic Changes After Device Closure of Interatrial Shunts - 02/08/19
, Martina Nassif, MD a, Rianne H.A.C.M. de Bruin-Bon, BSc a, Ali M. Al-Amin, MD b, Mohammed S. El-Baz, MD b, Sahar A.O. El-Shedoudy, MD c, Barbara J.M. Mulder, MD, PhD a, d, Robbert J. de Winter, MD, PhD a, Berto J. Bouma, MD, PhD aAbstract |
Background |
The spatial relationship between atrial septal occluders and the aorta and the subsequent impact on the geometry and mechanics of the aortic root have been underinvestigated. The aim of this study was to evaluate occluder-aorta interaction after device closure of an atrial septal defect (ASD) or a patent foramen ovale (PFO) using three-dimensional transesophageal echocardiography and two-dimensional speckle-tracking echocardiography.
Methods |
In 65 adult patients (mean age, 47 ± 14 years; 71% women) who underwent ASD (n = 35) or PFO (n = 30) closure with the Amplatzer Septal Occluder or Amplatzer PFO Occluder, occluder-aorta contact was evaluated on three-dimensional transesophageal echocardiography and defined as continuous, intermittent, or absent. Sinus of Valsalva diameter, height, eccentricity, and strain were measured before and immediately after occluder implantation.
Results |
The occluder/total septal length and occluder/body surface area ratios were significantly larger after PFO than after ASD closure. The occluder was in contact with the aorta in 93.8% of cases (ASD, 91.4%; PFO, 96.7%). After ASD closure, occluder-aorta contact was very common, in patients with an aortic rim < 5 mm (100%) and those with an aortic rim ≥ 5 mm (79%). However, continuous occluder-aorta contact was more frequent in those with an aortic rim < 5 mm (95% vs 50%). Factors influencing aortic root strain after occluder implantation included the pattern of occluder-aorta relationship and the occluder/body surface area ratio.
Conclusions |
Most interatrial septal occluders are in contact with the aortic root, even in patients with ASDs with a sufficient aortic rim and in patients with PFOs. However, continuous occluder-aorta contact is more likely in patients with ASDs with a deficient aortic rim. The pattern of occluder-aorta relationship and the occluder/body surface area ratio affect aortic root strain.
Le texte complet de cet article est disponible en PDF.Highlights |
• | Contact between an ASD/PFO occluder and the aorta is more common than desirable. |
• | Occluder-aorta contact is not confined to ASD patients with deficient aortic rims. |
• | Three-dimensional TEE and ST imaging can assess occluder-aorta interaction. |
• | Occluder-aorta contact and occluder/BSA ratio influence the pattern of aortic change. |
Keywords : Device erosion, Echocardiography, 2D strain, 3D echocardiography, Atrial septal defect, Patent foramen ovale
Abbreviations : 2D, 3D, ASD, BSA, Dmax, GCS, LAX, PFO, SAX, SOV, ST, TEE, TSL
Plan
| Dr. de Winter's institution (Academic Medical Center, Amsterdam, The Netherlands) received an unrestricted institutional educational research grant from St. Jude Medical (now Abbott Vascular). Drs. Abdelghani and Nassif contributed equally to this work. |
Vol 32 - N° 8
P. 1016 - août 2019 Retour au numéro
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