Table 2.
Cardiovascular Magnetic Resonance Imaging Assessment of LA/LV Parameters in Patients With HOCM With and Without AF
| All Patients | Patients With HOCM | |||
|---|---|---|---|---|
| (n=40) | With AF | Without AF | P Value | |
| (n=6) | (n=34) | |||
| Indices of LV remodeling | ||||
| Septal wall thickness, mm | 24.7±4.2 | 25.8±1.3 | 24.7±4.5 | 0.252 |
| LV end‐diastolic diameter, mm | 45.3±3.4 | 43.7±4.7 | 45±4 | 0.478 |
| LVMI, g/m2 | 97±30.1 | 85.3±25.2 | 99.2±30.8 | 0.304 |
| LVEF, % | 64±6.6 | 63.2±10.8 | 64.5±5.8 | 0.778 |
| LVEDVi, mL/m2 | 86.9±23.3 | 90.8±18.4 | 85.7±23.7 | 0.240 |
| LVESVi, mL/m2 | 29.1±10.1 | 25.4±7.4 | 29.4±10.3 | 0.344 |
| PFR, mL/s | 264±105 | 211±40.6 | 272±110 | 0.024 |
| PFR index, s | 2.9±1.4 | 1.98±0.7 | 3.06±1.37 | 0.070 |
| AT, s | 143.6±45 | 167.3±52.2 | 140±41.9 | 0.158 |
| DT, s | 172.1±65.2 | 166.2±51.5 | 177.2±69.5 | 0.713 |
| Indices of LA remodeling | ||||
| LA diameter, mm | 41.5±8.8 | 48.8±6.4 | 40.2±8.8 | 0.028 |
| LAVmax index, mL/m2 | 65.5±20.8 | 86.6±23.9 | 61.8±18.1 | 0.005 |
| LAVmin index, mL/m2 | 40.3±19.6 | 66.5±23.7 | 35.6±14.9 | 0.004 |
| LATEF, % | 40.8±12.2 | 24.3±7.6 | 43.7±10.5 | <0.001 |
| LAPEF, % | 21.6±16.1 | 13.3±3.6 | 23.1±17 | 0.173 |
| LAAEF, % | 26.4±12 | 12.4±10.6 | 29±10.5 | 0.001 |
| PER‐E, mL | 112.1±59.1 | 81.4±18.5 | 117.5±62.3 | 0.01 |
| PER‐E index, /s | 1.3±0.6 | 1.2±0.4 | 1.3±0.6 | 0.587 |
| PER‐A, mL | 147±77.4 | 98.6±74.6 | 156.5±75.6 | 0.91 |
| PER‐A index, /s | 1.7±0.9 | 1.3±0.9 | 1.8±0.9 | 0.384 |
AT indicates acceleration time; DT, deceleration time; HOCM, hypertrophic obstructive cardiomyopathy; LA, left atrial; LAAEF, active left atrial ejection fraction; LAPEF, passive left atrial ejection fraction; LATEF, total left atrial ejection fraction; LAV, left atrial volume; LV, left ventricular; LVEDVI, left ventricular end‐diastolic volume index; LVEF, left ventricular ejection fraction; LVESVI, left ventricular end‐systolic volume index; LVMI, left ventricle mass index; PER‐A, atrial peak emptying rate A; PER‐A index, atrial peak emptying rate A normalized by left ventricular filling volume; PER‐E, early peak emptying rate; PER‐E index, early peak emptying rate normalized by left ventricular filling volume; PFR, peak filling rate; and PFR index, peak filling rate normalized by left ventricular filling volume.