PMID- 37899719 OWN - NLM STAT- MEDLINE DCOM- 20231219 LR - 20231219 IS - 1969-6213 (Electronic) IS - 1774-024X (Print) IS - 1774-024X (Linking) VI - 19 IP - 11 DP - 2023 Dec 18 TI - Deformation of transcatheter heart valves with mitral valve-in-valve. PG - e937-e947 LID - EIJ-D-23-00614 [pii] LID - 10.4244/EIJ-D-23-00614 [doi] AB - BACKGROUND: The use of oversizing in mitral valve-in-valve (MViV) procedures can lead to non-uniform expansion of transcatheter heart valves (THV). This may have implications for THV durability. AIMS: The objective of this study was to assess the extent and predictors of THV deformation in MViV procedures. METHODS: We examined 33 patients who underwent MViV with SAPIEN prostheses. The extent of THV deformation (deformation index, eccentricity, neosinus volume, asymmetric leaflet expansion and vertical deformation) and hypoattenuating leaflet thickening (HALT) were assessed using cardiac computed tomography (CT), performed prospectively at 30 days post-procedure. For descriptive purposes, the THV deformation index was calculated, with values >1.00 representing a more hourglass shape. RESULTS: Non-uniform underexpansion of THV was common after MViV implantation, with a median expansion area of 74.0% (interquartile range 68.1-84.1) at the narrowest level and a THV deformation index of 1.21 (1.13-1.29), but circularity was maintained with eccentricity ranging from 0.24 to 0.28. The degree of oversizing was a key factor associated with greater underexpansion and a higher deformation index (beta=-0.634; p<0.001; beta=0.594; p<0.001, respectively). Overall, the incidence of HALT on the 30-day postprocedural CT was 27.3% (9 of 33). Most patients (32 of 33) were on anticoagulation therapy, but the prothrombin time and international normalised ratio (PT-INR) at the time of the CT scan was <2.5 in 23 of 32 patients. Among patients with a PT-INR of <2.5, HALT was predominantly observed with a high THV deformation index of >/=1.18. CONCLUSIONS: THV deformation, i.e., underexpansion and an hourglass shape, commonly occurs after MViV implantation and is negatively affected by excessive oversizing. Optimising THV expansion during MViV could potentially prevent HALT. FAU - Fukui, Miho AU - Fukui M AD - Cardiovascular Imaging Research Center and Core Lab, Minneapolis Heart Institute Foundation, Minneapolis, MN, USA. FAU - Okada, Atsushi AU - Okada A AD - Valve Science Center, Minneapolis Heart Institute Foundation, Minneapolis, MN, USA. FAU - Burns, Marcus R AU - Burns MR AD - Allina Health Minneapolis Heart Institute - Minneapolis, Abbott Northwestern Hospital, Minneapolis, MN, USA. FAU - Sato, Hirotomo AU - Sato H AD - Valve Science Center, Minneapolis Heart Institute Foundation, Minneapolis, MN, USA. FAU - Thao, Kiahltone R AU - Thao KR AD - Valve Science Center, Minneapolis Heart Institute Foundation, Minneapolis, MN, USA. FAU - Wang, Cheng AU - Wang C AD - Valve Science Center, Minneapolis Heart Institute Foundation, Minneapolis, MN, USA. FAU - Koike, Hideki AU - Koike H AD - Cardiovascular Imaging Research Center and Core Lab, Minneapolis Heart Institute Foundation, Minneapolis, MN, USA. FAU - Hamid, Nadira AU - Hamid N AD - Valve Science Center, Minneapolis Heart Institute Foundation, Minneapolis, MN, USA. AD - Allina Health Minneapolis Heart Institute - Minneapolis, Abbott Northwestern Hospital, Minneapolis, MN, USA. FAU - Enriquez-Sarano, Maurice AU - Enriquez-Sarano M AD - Valve Science Center, Minneapolis Heart Institute Foundation, Minneapolis, MN, USA. FAU - Lesser, John R AU - Lesser JR AD - Valve Science Center, Minneapolis Heart Institute Foundation, Minneapolis, MN, USA. AD - Allina Health Minneapolis Heart Institute - Minneapolis, Abbott Northwestern Hospital, Minneapolis, MN, USA. FAU - Cavalcante, Joao L AU - Cavalcante JL AD - Cardiovascular Imaging Research Center and Core Lab, Minneapolis Heart Institute Foundation, Minneapolis, MN, USA. AD - Allina Health Minneapolis Heart Institute - Minneapolis, Abbott Northwestern Hospital, Minneapolis, MN, USA. FAU - Sorajja, Paul AU - Sorajja P AD - Valve Science Center, Minneapolis Heart Institute Foundation, Minneapolis, MN, USA. AD - Allina Health Minneapolis Heart Institute - Minneapolis, Abbott Northwestern Hospital, Minneapolis, MN, USA. FAU - Bapat, Vinayak N AU - Bapat VN AD - Valve Science Center, Minneapolis Heart Institute Foundation, Minneapolis, MN, USA. AD - Allina Health Minneapolis Heart Institute - Minneapolis, Abbott Northwestern Hospital, Minneapolis, MN, USA. LA - eng PT - Journal Article DEP - 20231218 PL - France TA - EuroIntervention JT - EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology JID - 101251040 SB - IM MH - Humans MH - *Aortic Valve Stenosis/surgery MH - Mitral Valve/diagnostic imaging/surgery MH - Treatment Outcome MH - *Heart Valve Prosthesis MH - *Transcatheter Aortic Valve Replacement MH - Prosthesis Design MH - Aortic Valve/surgery PMC - PMC10719737 COIS- J.L. Cavalcante has received consulting fees from 4C Medical, Abbott Structural, Anteris, Aria CV, Boston Scientific, Edwards Lifesciences, HighLife, Medtronic, VDyne, W.L. Gore & Associates, and Xylocor; and has received research grant support from Abbott Northwestern Hospital Foundation. P. Sorajja has received consulting fees from 4C Medical, Abbott Structural, Anteris, Boston Scientific, Edwards Lifesciences, Evolution Medical, Foldax, GLG, Medtronic, Philips, Siemens, Shifamed, W.L. Gore & Associates, VDyne, and xDot Medical; and has received institutional research grant support from Abbott Structural, Medtronic, and Boston Scientific. M. Enriquez-Sarano has received consulting fees from CryoLife, Edwards Lifesciences, HighLife, and ChemImage. V.N. Bapat has received consulting fees from Abbott Structural, Medtronic, Boston Scientific, Edwards Lifesciences, 4C Medical, and Anteris. The other authors have no conflicts of interest to declare. EDAT- 2023/10/30 06:47 MHDA- 2023/12/19 06:41 PMCR- 2024/12/18 CRDT- 2023/10/30 04:14 PHST- 2024/12/18 00:00 [pmc-release] PHST- 2023/12/19 06:41 [medline] PHST- 2023/10/30 06:47 [pubmed] PHST- 2023/10/30 04:14 [entrez] AID - EIJ-D-23-00614 [pii] AID - 10.4244/EIJ-D-23-00614 [doi] PST - epublish SO - EuroIntervention. 2023 Dec 18;19(11):e937-e947. doi: 10.4244/EIJ-D-23-00614.