Aortic Valve Repair Using HAART 300 Geometric Annuloplasty Ring: A Review and Echocardiographic Case Series

Malposition of an Internal Aortic Annuloplasty Ring After Acute Type A Aortic Dissection Repair

Poor tissue quality of adventitia and intima makes aortic root repair complex in patients with acute type A aortic dissection. The management of aortic root repair remains controversial. Internal aortic annuloplasty devices provide a standardized aortic valve repair technique to reduce and prevent annular dilation, while the modified Florida sleeve (mFS) procedure is an aortic root remodeling technique that does not require coronary artery reimplantation. However, little is known about the long-term durability of internal aortic annuloplasty with the hemispheric aortic annuloplasty remodeling ring (HARRT) combined with a mFS procedure in acute type A aortic dissection repair. A 52-year-old man had initial type A aortic dissection repair with an internal aortic annuloplasty ring and a mFS technique. He presented with dyspnea on exertion and intermittent chest pain one year later. Transesophageal echocardiogram revealed malposition of aortic annuloplasty ring and severe aortic insufficiency. He underwent a redo sternotomy with aortic valve replacement. Intraoperative findings demonstrated the aortic annuloplasty ring had dislodged from under the left and right coronary annulus and was adherent to the base of the noncoronary leaflet. The annuloplasty ring and aortic valve leaflets were excised and replaced with a mechanical aortic valve.

An Unusual Cause of Aortic Regurgitation in a Patient With Bicuspid Aortic Valve

Aortic fibrous strands are considered residual tissue from aortic valve development. Rupture of these strands is an important albeit uncommon cause of aortic regurgitation (AR). The authors describe a 67-year-old man who was admitted to the authors' hospital with sudden onset shortness of breath and diagnosed with severe AR. The patient was scheduled for Bentall surgery. The transesophageal echocardiogram (TEE) found multiple fibrous strands that were present in multiple locations of the aortic valve, some of which were ruptured. Ruptured fibrous strands are in the differential diagnosis in patients presenting with acute AR without a more conventional explanation, and TEE is instrumental in securing the diagnosis.