Research Article

Glycemic Control Status and Long-Term Clinical Outcomes in Diabetic Chronic Total Occlusion Patients: An Observational Study

Table 2

Baseline characteristics in propensity score-matched population.

Clinical characteristicsHbA1c < 7.0 (n = 353)HbA1c ≥ 7.0 (n = 353) value

Age (year)59.28 ± 9.4859.82 ± 9.670.458
Male276 (78.2)276 (78.2)1.000
Hypertension240 (68.0)241 (68.3)0.936
Dyslipidemia116 (32.9)130 (36.8)0.269
PVD5 (1.4)10 (2.8)0.192
Prior MI184 (52.1)184 (52.1)1.000
Prior PCI63 (17.8)65 (18.4)0.845
Prior stroke15 (4.2)19 (5.4)0.482
Heart failure93 (26.3)106 (30.0)0.277
Systolic heart failure43 (12.2)48 (13.6)0.574
Diastolic heart failure50 (14.2)58 (16.4)0.403
CKD5 (1.4)6 (1.7)0.761
COPD/asthma1 (0.3)2 (0.6)1.000
Hyperuricemia70 (19.8)71 (20.1)0.925
Smoking167 (47.3)169 (47.9)0.880
Drinking51 (14.4)46 (13.0)0.585
BMI (kg/m2)26.53 ± 3.1426.49 ± 3.100.863

Laboratory examination
 LVEF (%)61.00 (56.00–66.00)61.00 (55.00–66.00)0.692
 RWMA105 (29.7)105 (29.7)1.000
 Baseline fasting blood glucose (mmol/L)7.22 (6.09–8.50)7.38 (6.15–9.15)0.052
 Baseline HbA1c7.20 (6.70–7.60)7.30 (6.80–7.90)0.002
 Baseline HbA1c ≥ 7.0194 (54.96)230 (65.16)
 Triglyceride (mg/dL)1.63 (1.20–2.33)1.63 (1.20–2.33)0.865
 HDL-C (mg/dL)0.93 (0.81–1.05)0.94 (0.82–1.10)0.549
 LDL-C (mg/dL)2.31 (1.85–3.05)2.34 (1.93–3.06)0.270

Medical treatment
 Aspirin348 (98.6)344 (97.5)0.280
 P2Y12 inhibitor317 (89.8)316 (89.5)0.902
 Statin333 (94.3)334 (94.6)0.869
 Nitrites140 (39.7)141 (39.9)0.939
 Beta-blocker270 (76.5)271 (76.8)0.929
 CCB92 (26.1)85 (24.1)0.543
 ACEI/ARB202 (57.2)199 (56.4)0.820
 Insulin110 (31.2)130 (36.8)0.112
 Sulfonylureas78 (22.1)64 (18.1)0.189
 Nateglinide22 (6.2)21 (5.9)0.875
 Biguanides140 (39.7)145 (41.1)0.701
 Thiazolidinediones62 (17.6)58 (16.4)0.689
 Alpha-glucosidase inhibitor146 (41.4)134 (38.0)0.356

Angiographic characteristics
 CTO location
  LAD112 (31.7)110 (31.2)0.871
  LCX99 (28.0)88 (24.9)0.348
  RCA142 (40.2)155 (43.9)0.322

Number of diseased vessels
 193 (26.3)90 (25.5)0.797
 2138 (39.1)136 (38.5)0.877
 3122 (34.6)127 (36.0)0.694
Syntax score#21.00 (17.50–26.50)21.00 (17.50–24.50)0.766
Rentrop grade ≥ 2#257 (83.2)256 (82.6)0.845
Abrupt stump#152 (49.2)155 (50.0)0.840
Calcification#66 (21.4)73 (23.5)0.514
Bending ≥ 45°#119 (38.5)130 (41.9)0.385
CTO length ≥ 20 mm#158 (51.1)171 (55.2)0.315

Procedural characteristics
 Retrograde approach29 (15.0)22 (11.5)0.302

Values are n (%), mean ± SD, or median with interquartile range. ACEI/ARB: angiotensin-converting enzyme inhibitor/angiotensin-receptor blocker; BMI: body mass index; CABG: coronary artery bypass grafting; CCB: calcium-channel blocker; CKD: chronic kidney disease; COPD: chronic obstructive pulmonary disease; CTO: chronic total occlusion; HCY: homocysteine; HDL-C: high-density lipoprotein cholesterol; HF: heart failure; LAD: left anterior descending coronary artery; LCX: left circumflex artery; LDL-C: low-density lipoprotein cholesterol; LVEF: left ventricular ejection fraction; MI: myocardial infarction; MT: medical therapy; PCI: percutaneous transluminal coronary intervention; PVD: peripheral vascular disease; RCA: right coronary artery; RWMA: regional wall motion abnormality; TC: total cholesterol. #Cine angiogram records got from 619 (87.68%) individuals. Only patients who were treated with PCI.