Anemia and risk of periprocedural cerebral injury detected by diffusion-weighted magnetic resonance imaging in patients undergoing transcatheter aortic valve replacement

Stella Ng, Qi-feng Zhu, Ju-bo Jiang, Chun-hui Liu, Jia-qi Fan, Ye-ming Xu, Xian-bao Liu, Jian-an Wang

Table 2 Procedural data and periprocedural clinical outcome following TAVR

Variables All patients (n=158) Anemic patients (n=85) Non-anemic patients (n=73) P-value Procedural data Valve type 0.768 Self-expanding 126 (79.7) 68 (80.0) 58 (79.5) Balloon-expandable 29 (18.4) 16 (18.8) 13 (17.8) Mechanically-expandable 3 (1.9) 1 (1.2) 2 (2.7) Pre-dilatation 152 (96.2) 83 (97.6) 69 (94.5) 0.416 Post-dilatation 79 (50.0) 40 (47.1) 39 (53.4) 0.425 Duration of procedure, minutes 64.41±32.67 64.60±30.49 64.19±35.26 0.938 Mortality In-hospital 0 (0) 0 (0) 0 (0) - 30-day 0 (0) 0 (0) 0 (0) - 1-year 5 (3.2) 4 (4.7) 1 (1.4) 0.374 Length of stay, days 7 (7-9) 8 (4-12) 7 (5-9) <0.001 Myocardial infarction 0 (0) 0 (0) 0 (0) - Stroke 5 (3.2) 4 (4.7) 1 (1.4) 0.374 Disabling stroke 0 (0) 0 (0) 0 (0) - Non-disabling stroke 5 (3.2) 4 (4.7) 1 (1.4) 0.374 Bleeding 39 (24.7) 21 (24.7) 18 (24.7) 0.994 Blood transfusion 12 (7.6) 10 (11.8) 2 (2.7) 0.033 Acute kidney injury 3 (1.9) 2 (2.4) 1 (1.4) 1.000 Vascular complication 17 (10.8) 10 (11.8) 7 (9.6) 0.660 New atrial fibrillation 6 (3.8) 3 (3.5) 3 (4.1) 1.000 New LBBB 21 (13.3) 11 (12.9) 10 (13.7) 0.889 New atrioventricular block 20 (12.7) 11 (12.9) 9 (12.3) 0.908 New pacemaker implantation 3 (1.9) 1 (1.2) 2 (2.7) 0.596 Pre-discharge hemoglobin, g/dL 10.5±1.9 9.6±1.7 11.6±1.5 <0.001