Table 1.
Baseline demographic, clinical, and preoperative ultrasound characteristics of all 300 patients in the study cohort
| Variable | All Patients |
|---|---|
| N of patients | 300 |
| Age, yr, mean±SD | 53±15 |
| Sex, men (%) | 185 (62%) |
| Race, black (%) | 246 (82%) |
| Diabetes mellitus, N (%) | 157 (52%) |
| Coronary artery disease, N (%) | 70 (23%) |
| Peripheral vascular disease, N (%) | 41 (14%) |
| Cerebrovascular disease, N (%) | 58 (19%) |
| LVEF<55% on echocardiogram, N (%)a | 60 (20%) |
| Obesity (BMI≥30 kg/m2), N (%) | 139 (46%) |
| AVF location, upper arm, N (%) | 217 (72%) |
| Systolic BP, mm Hg, mean±SD | 146±25 |
| Diastolic BP, mm Hg, mean±SDb | 82±17 |
| Preoperative arterial diameter, mm, mean±SDc | 3.9±1.3 |
| Preoperative venous diameter, mm, mean±SDd | 3.9±1.1 |
| Brachial artery blood flow, ml/min, median [IQR]e | 53 [35–76] |
BMI, body mass index.
a
Echocardiogram data available for 235 patients (78%).
b
Diastolic BP data available for 298 patients (99%).
c
Preoperative arterial diameter data available for 292 patients (97%).
d
Preoperative venous diameter data available for 295 patients (98%).
e
Brachial artery blood flow data available for 298 patients (99%).