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Variable (N (%))
|
Collaterals absent
|
Collaterals present
|
P value
|
|---|
|
(n = 102)
|
(n = 20)
|
|---|
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Demographics
| | | |
|
Age (years), mean ± SD
|
61.38 ± 11.86
|
61.20 ± 11.28
|
0.95
|
|
Male
|
67 (65.7 %)
|
15 (75.0 %)
|
0.42
|
|
Black
|
11 (10.8 %)
|
0 (0.0 %)
|
0.12
|
|
Blood pressure (mmHg), mean ± SD
| | | |
|
Systolic
|
129.77 ± 23.44
|
119.15 ± 18.88
|
0.06
|
|
Diastolic
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70.40 ± 13.88
|
69.20 ± 10.13
|
0.72
|
|
Medical History
| | | |
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Acute coronary syndrome on presentation
|
34 (33.3 %)
|
9 (45.0 %)
|
0.32
|
|
Prior myocardial infarction
|
26 (25.5 %)
|
10 (50.0 %)
|
0.03
|
|
Hypertension
|
78 (76.5 %)
|
17 (85.0 %)
|
0.41
|
|
Diabetes
|
38 (37.3 %)
|
8 (40.0 %)
|
0.82
|
|
Chronic dialysis
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8 (7.8 %)
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0 (0.0 %)
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0.20
|
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Congestive heart failure
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26 (25.5 %)
|
6 (30.0 %)
|
0.68
|
|
Chronic obstructive lung disease
|
8 (7.8 %)
|
0 (0.0 %)
|
0.20
|
|
Peripheral vascular disease
|
6 (5.9 %)
|
4 (20.0 %)
|
0.04
|
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Hyperlipidemia
|
75 (73.5 %)
|
16 (80.0 %)
|
0.54
|
|
Angiographic Findings
| | | |
|
Number of diseased vessels, median [IQR]
|
1.0 [0.0, 1.0]
|
2.0 [1.0, 2.5]
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<0.001
|
|
Multi-vessel coronary disease
|
20 (19.6 %)
|
14 (70.0 %)
|
<0.001
|
|
Gensini score, median [IQR]
|
22.25 [19.50, 30.50]
|
66.50 [56.25, 92.00]
|
<0.001
|
|
Percent area stenosis (%), median [IQR]
|
4.7 [3.6, 6.1]
|
0.7 [5.0,9.0]
|
<0.001
|
|
Labs, mean ± SD
| | | |
|
Ejection fraction (%), median [IQR]
|
57.5 [45.0, 65.0]
|
55.0 [38.0, 64.0]
|
0.53
|
|
Hemoglobin, (g/dL)
|
13.25 ± 1.82
|
12.76 ± 2.01
|
0.28
|
|
White blood count (1000/mm3), median [IQR]
|
7.66 [6.13, 8.93]
|
8.17 [6.96, 9.40]
|
0.22
|
|
LDL cholesterol (mg/dL)
|
88.55 ± 33.58
|
79.75 ± 45.45
|
0.34
|
|
Serum creatinine (mg/dL), median [IQR]
|
1.05 [0.83, 1.30]
|
1.05 [0.89, 1.41]
|
0.61
|
|
Estimated glomerular filtration rate, (mL/min)
|
68.15 ± 30.43
|
69.28 ± 31.03
|
0.88
|
