Introduction
Methods
Cardiovascular magnetic resonance imaging
Statistical analyses
Results
Study population
Variable | Study population n = 67* | Cardiovascular events n = 23* | No cardiovascular events n = 44* | p value |
---|---|---|---|---|
Age (years) | 69 (64, 73) | 71 (67, 75) | 67 (58, 73) | 0.030 |
Sex male/female | 24/43 | 10/13 | 14/30 | 0.345 |
NYHA class | 47 × II (70%) 20 × III (30%) | 15 × II (65%) 8 × III (35%) | 32 × II (73%) 12 × III (27%) | 0.524 |
Atrial Fibrillation | 21 (31%) | 14 (61%) | 7 (16%) | < 0.001 |
H2FPEF Score | 4 (3, 5) | 5 (4, 7) | 3 (2, 5) | < 0.001 |
HFA-PEFF Score | 4 (3, 6) | 5 (3, 6) | 4 (2, 5) | 0.103 |
Cardiovascular risk factors | ||||
Active smoking | 9 (13%) | 4 (17%) | 5 (11%) | 0.492 |
Hypertension | 53 (79%) | 18 (78%) | 35 (80%) | 0.902 |
Hyperlipoproteinemia | 42 (63%) | 15 (65%) | 27 (61%) | 0.757 |
Diabetes | 9 (13%) | 4 (17%) | 5 (11%) | 0.492 |
Body mass index (kg/m2 BSA) | 28.1 (26.1, 32.7) | 28.9 (26.8, 32.7) | 27.7 (25.4, 32.8) | 0.492 |
Laboratory testing | ||||
NT-proBNP (ng/l) | 123 (68, 268) | 191 (108, 430) | 88 (62, 180) | 0.005 |
Creatinine (mg/dl) | 0.85 (0.73, 1.03) | 1.03 (0.83, 1.12) | 0.78 (0.71, 0.98) | 0.002 |
Echocardiography | ||||
E/eʹ rest | 10.7 (9.0, 12.8) | 11.4 (9.4, 13.0) | 10.0 (8.5, 12.8) | 0.132 |
E/e' stress | 12.1 (10.3, 15.3) | 12.1 (10.7, 14.5) | 12.2 (10.0, 15.6) | 0.941 |
LAVI (ml/m2 BSA) | 38.2 (34.1, 50.0) | 46.0 (38.4, 59.6) | 36.1 (30.6, 43.3) | < 0.001 |
TAPSE (mm) | 23.3 (20.8, 26.5) | 21.7 (19.4, 27.2) | 23.7 (21.7, 26.4) | 0.349 |
PAPsys (mmHg) | 24.2 (21.5, 30.3) | 27.2 (21.7, 31.0) | 23.9 (21.0, 29.2) | 0.194 |
Right heart catheterization | ||||
PCWP rest (mmHg) | 11 (8, 14) | 12 (9, 18) | 10 (6, 13) | 0.018 |
PCWP stress (mmHg) | 23 (18, 27) | 26 (21, 30) | 22 (14, 26) | 0.020 |
PA mean rest (mmHg) | 19 (16, 23) | 21 (19, 26) | 18 (15, 21) | 0.005 |
PA mean stress (mmHg) | 39 (33, 44) | 43 (38, 50) | 37 (30, 42) | 0.003 |
PA pO2 rest (%) | 74 (71, 77) | 72 (70, 76) | 75 (72, 77) | 0.095 |
PA pO2 stress (%) | 47 (39, 51) | 46 (35, 50) | 47 (42, 52) | 0.282 |
Cardiac Index rest (l/m2 BSA) | 2.9 (2.5, 3.2) | 2.7 (2.5, 3.6) | 2.9 (2.6, 3.2) | 0.602 |
Cardiac Index stress (l/m2 BSA) | 5.3 (4.3, 6.4) | 5.6 (4.0, 6.3) | 5.3 (4.3, 6.4) | 0.787 |
Functional alterations
Variable | Cardiovascular events | No cardiovascular events | p value |
---|---|---|---|
n = 23a | n = 44a | ||
Echocardiography | |||
STE LV GLS rest | − 15.9 (− 11.9, − 18.9) | − 15.5 (− 13.2, − 19.2) | 0.899 |
STE LV GLS stress | − 14.4 (− 9.3, − 17.0) | − 15.5 (− 13.8, − 19.7) | 0.233 |
STE LA Es rest | 15.9 (10.2, 25.5) | 30.3 (25.9, 33.6) | < 0.001 |
STE LA Es stress | 15.3 (9.6, 27.3) | 29.0 (21.4, 36.4) | 0.004 |
Conventional cardiovascular magnetic resonance | |||
FT LV GLS | − 19.8 (− 18.7, − 22.3) | − 20.8 (− 19.2, − 23.3) | 0.205 |
FT LV GCS | − 36.4 (− 29.4, − 39.4) | − 34.4 (− 30.9, − 37.1) | 0.501 |
FT LV GRS | 68.3 (60.1, 74.6) | 62.8 (52.6, 70.9) | 0.066 |
FT RV GLS | − 24.6 (− 20.4, − 26.6) | − 22.8 (− 19.9, − 26.1) | 0.376 |
FT LA Es | 23.1 (14.3, 30.8) | 33.9 (27.9, 40.6) | < 0.001 |
FT LA Ee | 9.9 (7.8, 13.2) | 16.4 (12.0, 21.6) | < 0.001 |
FT LA Ea | 11.3 (6.6, 16.4) | 16.9 (13.4, 20.9) | 0.002 |
Native T1 myocardium (ms) | 1196 (1183, 1224) | 1212 (1186, 1248) | 0.224 |
Native T1 septum (ms) | 1208 (1167, 1231) | 1203 (1179, 1230) | 0.792 |
ECV myocardium | 25.9 (24.0, 28.2) | 25.6 (24.2, 27.5) | 0.840 |
ECV septum | 25.0 (23.2, 28.4) | 25.3 (23.3, 26.9) | 0.962 |
Real-time cardiovascular magnetic resonance | |||
LV LAS Rest | 13.2 (11.2, 14.2) | 14.2 (12.1, 16.2) | 0.028 |
LV LAS Stress | 16.1 (12.6, 19.0) | 18.0 (14.4, 20.0) | 0.146 |
LA EF Rest | 32.0 (22.3, 37.8) | 38.8 (34.3, 43.1) | 0.002 |
LA EF Stress | 32.3 (19.0, 42.7) | 42.2 (35.9, 49.5) | 0.002 |
LA LAS Rest | 13.7 (9.3, 17.8) | 21.6 (17.2, 26.3) | < 0.001 |
LA LAS Stress | 17.6 (9.0, 26.3) | 25.7 (18.4, 30.2) | 0.006 |
Prognostic implication
Variable | Hazard ratio (95% CI) | p value | AUCa |
---|---|---|---|
Clinical | |||
Age | 1.05 (1.00–1.11) | 0.041 | 0.66 (0.53–0.79) |
H2FPEF Score | 1.49 (1.23–1.81) | < 0.001 | 0.79 (0.69–0.90) |
HFA-PEFF | 1.29 (0.97–1.71) | 0.075 | 0.62 (0.48–0.76) |
Laboratory testing | |||
NT-proBNP (ng/l) | 1.00 (1.00–1.00) | < 0.001 | 0.71 (0.58–0.84) |
Echocardiographya | |||
E/eʹ rest | 1.07 (1.01–1.15) | 0.035 | 0.61 (0.47–0.76) |
LAVI (ml/m2 BSA) | 1.05 (1.02–1.07) | < 0.001 | 0.77 (0.65–0.88) |
STE LV GLS rest | 1.03 (0.91–1.16) | 0.697 | 0.51 (0.34–0.69) |
STE LV GLS exercise | 1.02 (0.95–1.09) | 0.636 | 0.61 (0.44–0.78) |
STE LA Es rest | 0.88 (0.84–0.93) | < 0.001 | 0.86 (0.73–0.98) |
STE LA Es exercise | 0.92 (0.87–0.97) | 0.004 | 0.77 (0.62–0.91) |
Right heart catheterisation | |||
PCWP rest (mmHg) | 1.13 (1.04–1.23) | 0.004 | 0.68 (0.55–0.81) |
PCWP stress (mmHg) | 1.06 (1.01–1.10) | 0.013 | 0.67 (0.54–0.81) |
PA mean rest (mmHg) | 1.08 (1.02–1.14) | 0.005 | 0.71 (0.58–0.84) |
PA mean stress (mmHg) | 1.04 (1.01–1.08) | 0.006 | 0.72 (0.59–0.85) |
Conventional cardiovascular magnetic resonance | |||
FT LV GLS | 1.08 (0.96–1.22) | 0.203 | 0.60 (0.44–0.75) |
FT LV GCS | 1.00 (0.98–1.02) | 0.822 | 0.55 (0.40–0.70) |
FT LV GRS | 1.02 (0.99–1.04) | 0.171 | 0.64 (0.50–0.77) |
FT RV GLS | 0.96 (0.89–1.03) | 0.253 | 0.57 (0.42–0.72) |
FT LA Es | 0.92 (0.89–0.96) | < 0.001 | 0.78 (0.65–0.91) |
FT LA Ee | 0.87 (0.80–0.94) | < 0.001 | 0.76 (0.64–0.89) |
FT LA Ea | 0.91 (0.85–0.97) | 0.003 | 0.73 (0.59–0.87) |
Real-time cardiovascular magnetic resonance | |||
LV LAS Rest | 0.84 (0.72–0.98) | 0.029 | 0.66 (0.53–0.80) |
LV LAS Stress | 0.92 (0.83–1.02) | 0.323 | 0.61 (0.46–0.76) |
LA EF Rest | 0.93 (0.89–0.96) | < 0.001 | 0.74 (0.60–0.87) |
LA EF Stress | 0.93 (0.90–0.97) | < 0.001 | 0.73 (0.60–0.86) |
LA LAS Rest | 0.86 (0.80–0.93) | < 0.001 | 0.80 (0.67–0.93) |
LA LAS Stress | 0.92 (0.88–0.97) | 0.002 | 0.71 (0.56–0.85) |
Variable | NCD n = 34a HR (95% CI), p value | masked HFpEF n = 18* HR (95% CI), p value | overt HFpEF n = 15* HR (95% CI), p value |
---|---|---|---|
Echocardiography | |||
STE LA Es rest | 0.80 (0.67–0.96), p = 0.018 | 0.89 (0.81–0.98), p = 0.016 | 0.88 (0.78–0.99), p = 0.032 |
STE LA Es exercise | 0.96 (0.87–1.06), p = 0.422 | 0.91 (0.81–1.03), p = 0.137 | 0.91 (0.82–1.02), p = 0.120 |
Conventional CMR at rest | |||
FT LA Es | 0.86 (0.74–0.99), p = 0.038 | 0.95 (0.88–1.02), p = 0.157 | 0.93 (0.86–1.01), p = 0.074 |
FT LA Ee | 0.85 (0.73–1.00), p = 0.054 | 0.93 (0.81–1.07), p = 0.326 | 0.87 (0.74–1.02), p = 0.095 |
FT LA Ea | 0.93 (0.81–1.08), p = 0.335 | 0.94 (0.86–1.04), p = 0.230 | 0.90 (0.77–1.05), p = 0.165 |
RT-CMR at rest and stress | |||
LA EF Rest | 0.90 (0.80–1.01), p = 0.080 | 0.91 (0.83–1.00), p = 0.050 | 0.97 (0.91–1.03), p = 0.310 |
LA EF Stress | 0.91 (0.82–1.01), p = 0.071 | 0.91 (0.84–0.99), p = 0.034 | 0.97 (0.91–1.04), p = 0.434 |
LA LAS Rest | 0.89 (0.78–1.02), p = 0.101 | 0.88 (0.78–0.99), p = 0.037 | 0.80 (0.67–0.96), p = 0.017 |
LA LAS Stress | 0.96 (0.84–1.09), p = 0.501 | 0.82 (0.71–0.95), p = 0.009 | 0.96 (0.86–1.07), p = 0.454 |