Abstract:
:The objectives of the study were to evaluate the impact of aortic angulation (AA) on success of transcatheter aortic valve replacement (TAVR) with a new generation self-expandable prosthesis (Medtronic Evolut R®). Specific anatomical conditions, such as for example the presence of a horizontal aorta with elevated AA, have seemed to pose a significant challenge for the correct positioning and consequent functioning of self-expandable TAVR prostheses. We assessed 146 patients treated with Evolut R. AA was measured at computed tomography and two groups were identified using as cutoff the mean AA value. Acute outcomes were collected and compared. AA mean value was 49.6 ± 9.4° (AA ≥ 50°: 76 and AA < 50°: 70 patients). Risk profile (Logistic euroSCORE: AA ≥ 50°: 15.7; 75% IQR: 11.1-22.1 vs. AA < 50°: 14.7; 75% IQR: 10.7-24.0; p = 0.8) was equivalent. Perioperative results were similar: valve resheathing (AA ≥ 50°: 21.0% vs. AA < 50°: 24.2%; p = 0.6), recapturing (AA ≥ 50°: 19.7% vs. AA < 50°: 25.7%; p = 0.3), fluoroscopy time (AA ≥ 50°: 11.1 IQR: 8.6-17.0 min. vs. AA < 50°: 11.0 IQR: 8.0-15.7 min.; p = 0.9), and contrast agent use (AA ≥ 50°: 99.0 ± 41.8 ml. vs. AA < 50°: 104.2 ± 38.5 ml.; p = 0.4). At discharge, moderate paravalvular leak was present in 8/76 (10.5%) of the AA ≥ 50° and 6/70 (8.6%) of the AA < 50° (p = 0.7) patients. Severe paravalvular leak, implantation of a second valve, and/or conversion to surgery did not occur. Early safety (AA ≥ 50°: 7.8% vs. AA < 50°: 5.7%; p = 0.6) was similar in the two groups. AA did not affect procedural outcomes and valve performance of the Evolut R prosthesis.
journal_name
Heart Vesselsjournal_title
Heart and vesselsauthors
D'Ancona G,Kische S,El-Mawardy M,Dißmann M,Heinze H,Zohlnhöfer-Momm D,Gürer H,Ince Hdoi
10.1007/s00380-019-01436-8subject
Has Abstractpub_date
2019-12-01 00:00:00pages
1969-1975issue
12eissn
0910-8327issn
1615-2573pii
10.1007/s00380-019-01436-8journal_volume
34pub_type
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