Table 3.

TAV-in-TAV registries.

	Redo TAVR registry (23)	Transit registry (24)	Global REDO-TAVI (25)	TVT 2021 (26) Sapien platform	TVT registry 2022 (27) Evolut platform	National registry 2023 (28) BEV
Number of patients	138	172	165	591	292	1,320
Mean age, years	79.2	79.9	80	78.5	78.6	78
STS risk score, %	6.9	6.1	6.83	8.9	10.4
Indication for TAV-in-TAV	Mainly SVD	SVD	SVD		Mainly SVD
Index THV failure mode	AS: 37% AR: 29.7% Combined: 32.6%	AS: 33% AR: 56% Combined: 11%	AS: 34.5 AR: 35.2 Combined: 29.7		AS: 44% AR: 62.1%
Device success, %	85.5	79.7			94.5
Post procedural mean gradient, mmHg	12.6	10.9		14.6	11.9
30-day mortality, %	1.4	7	3	4.9	3.2	4.7
1 year mortality, %	11.7	10	11.9	15.6	17.7	17.5
30-day stroke, %	0.7	3.5	0.6	2.4	3.1	2
Coronary obstruction, %	0.7	0	1.2	0.5	0	0.3