Model-Based Quantification of Left Ventricular Diastolic Function in Critically Ill Patients with Atrial Fibrillation from Routine Data: A Feasibility Study
Table 1
Summary of patient characteristics and results for both models. The results were rounded to three significant figures where applicable.
Patient
Age
Rhythm
Mean RR ± SD (s)
Mean PP ± SD (mmHg)
FVE simple model
β simple model ± EE(ml−1)
α simple model ± EE(ml/mmHg)
FVE expanded model
β expanded model ± EE(ml−1)
α expanded model (ml/mmHg)
mgh013
73
AF
0.787 ± 0.06
72.1 ± 7.89
0.36
0.0755 ± 0.0215
3.86 ± 3.58
0.48
0.0136 ± 0.00205
0.711 ± 0.621
mgh019
79
AF
0.75 ± 0.11
46.5 ± 12.9
0.5
0.0649 ± 0.104
3.71 ± 8.11
0.82
0.150 ± 0.0244
0.684 ± 0.237
mgh023
78
AF
0.794 ± 0.19
108.3 ± 18.3
0.73
0.0347 ± 0.0050
2.80 ± 2.14
0.91
0.0124 ± 0.00113
1.25 ± 0.985
mgh027
73
AF
0.671 ± 0.175
70.6 ± 19.1
0.45
0.0700 ± 0.0343
4.07 ± 2.48
0.64
0.0471 ± 0.0104
1.70 ± 0.594
mgh032
78
AF
0.733 ± 0.15
76.0 ± 15.6
0.82
0.0378 ± 0.0103
3.01 ± 3.39
0.93
0.0198 ± 0.00415
0.880 ± 2.36
mgh105
86
AF
0.628 ± 0.16
51.5 ± 8.70
0.53
0.128 ± 0.0655
7.60 ± 11.5
0.73
0.0368 ± 0.00916
5.37 ± 3.88
mgh126
46
AF
0.830 ± 0.203
55.9 ± 8.47
0.77
0.0218 ± 0.0051
4.70 ± 5.87
0.87
0.0335 ± 0.00855
4.98 ± 4.13
mgh129
63
AF
0.420 ± 0.08
80.8 ± 22.0
0.51
0.0574 ± 0.0269
1.03 ± 2.68
0.74
0.0472 ± 0.00516
0.529 ± 0.398
mgh130
73
AF
0.856 ± 0.05
59.7 ± 4.06
0.5
0.105 ± 0.0621
5.62 ± 10.38
0.74
0.0052 ± 0.00112
0.622 ± 0.177
mgh135
65
AF
0.549 ± 0.11
88.9 ± 11.8
0.44
0.0523 ± 0.0089
0.324 ± 0.432
0.47
0.0553 ± 0.0220
0.333 ± 0.463
mgh139
64
AF
0.608 ± 0.13
82.4 ± 13.8
0.7
0.0387 ± 0.0084
2.33 ± 1.41
0.834
0.0187 ± 0.00796
0.652 ± 0.749
mgh141
73
AF
0.714 ± 0.14
56.9 ± 12.7
0.41
0.0125 ± 0.0034
0.252 ± 0.069
0.58
0.0112 ± 0.00237
0.461 ± 0.208
mgh144
71
AF
0.735 ± 0.12
74.1 ± 7.69
0.52
0.0538 ± 0.0137
5.64 ± 2.27
0.76
0.0441 ± 0.0112
2.40 ± 3.69
mgh145
81
AF
0.578 ± 0.09
49.1 ± 10.6
0.13
0.0459 ± 0.0062
0.482 ± 0.151
0.14
0.0672 ± 0.0286
2.57 ± 3.85
mgh146
87
AF
0.637 ± 0.08
97.7 ± 8.94
0.34
0.0736 ± 0.0388
3.59 ± 14.83
0.46
0.0347 ± 0.00548
0.560 ± 0.260
mgh147
76
AF
0.533 ± 0.11
70.1 ± 24.6
0.61
0.0340 ± 0.0092
0.511 ± 0.481
0.86
0.0328 ± 0.00424
0.211 ± 0.215
mgh149
67
AF
0.706 ± 0.09
78.7 ± 8.15
0.64
0.194 ± 0.0845
5.18 ± 7.46
0.89
0.0110 ± 0.00173
0.955 ± 0.596
mgh059
25
S
0.717 ± 0.04
44.7 ± 2.73
0.02
0.160 ± 0.516
44.89 ± 177
0.09
0.118 ± 0.0823
19.8 ± 12.2
mgh079
20
S
0.813 ± 0.02
50.4 ± 2.64
0
0.0862 ± 0.241
10.93 ± 9.51
0.01
0.124 ± 0.0942
31.4 ± 24.6
mgh152
67
S
0.764 ± 0.02
78.4 ± 3.33
0.03
0.0409 ± 0.0226
27.7 ± 51.0
0.1
0.0880 ± 0.211
4.71 ± 3.12
AF = atrial fibrillation; S = sinus; RR = ECG R‐peak intervals; PP = pulse pressure; SD = standard deviation; FVE = fraction of variation explained; β = left ventricular diastolic stiffness; α = aortic compliance; EE = error estimate.
