Research Article

Clinical Characteristics and Long-Term Prognosis of Elderly Valvular Heart Disease Patients with Diabetes Mellitus: Five-Year Experience from a Single-Center Study of Southern China

Table 1

Baseline characteristics stratified by presence of diabetes mellitus in elderly VHD patients.

Overall (n = 532)Diabetes (n = 155)Nondiabetes (n = 377) value

Age (years)75.0 (70.0–80.0)75.0 (71.5–79.0)75.0 (70.0–80.0)0.556
Male, n (%)291 (54.7%)90 (58.1%)201 (53.3%)0.317
Medical history
 COPD, n (%)116 (21.8%)30 (19.4%)86 (22.8%)0.380
 Atrial fibrillation, n (%)232 (43.6%)77 (49.7%)155 (41.1%)0.070
 Hypertension, n (%)358 (67.3%)127 (81.9%)231 (61.3%)<0.001
 Chronic kidney disease, n (%)66 (12.4%)25 (16.1%)41 (10.9%)0.095
 Congenital VHD, n (%)42 (7.9%)9 (5.8%)33 (8.8%)0.252
 Ischemic VHD, n (%)151 (28.4%)50 (32.3%)101 (26.8%)0.204
 Infective VHD, n (%)7 (1.3%)2 (1.3%)5 (1.3%)>0.999
 Degenerative VHD, n (%)206 (38.7%)62 (40.0%)144 (38.2%)0.698
 Rheumatic VHD, n (%)92 (17.3%)26 (16.8%)66 (17.5%)0.839
NYHA class, n (%)0.726
 I30 (5.6%)8 (5.2%)22 (5.8%)
 II274 (51.5%)86 (55.5%)188 (49.9%)
 III184 (34.6%)49 (31.6%)135 (35.8%)
 IV37 (7.0%)11 (7.1%)26 (6.9%)
NYHA class > 2, n (%)221 (41.5%)60 (38.7%)161 (42.7%)0.349
Echocardiographic findings
 LAd (mm)40.0 (35.0–46.0)41.9 (37.0–47.5)40.0 (35.0–45.0)0.021
 LVDd (mm)47.5 (43.0–54.3)47.0 (42.0–52.0)48.0 (43.0–56.0)0.168
 LVSd (mm)29.0 (25.0–36.0)28.0 (25.0–33.0)30.0 (25.0–37.0)0.123
 LVEF (%)63.5 (55.0–68.0)64.0 (57.5–68.0)63.0 (53.0–69.0)0.522
LVEF < 50%, n (%)101 (19.0%)25 (16.1%)76 (20.2%)0.522
Mitral regurgitation, n (%)0.07195
 None107 (20.1%)28 (18.1%)79 (21.0%)
 Mild175 (32.9%)53 (34.2%)122 (32.4%)
 Moderate92 (17.3%)36 (23.2%)56 (14.9%)
 Severe158 (29.7%)38 (24.5%)120 (31.8%)
Mitral stenosis, n (%)0.2481
 None437 (82.1%)120 (77.4%)317 (84.1%)
 Mild35 (6.6%)11 (7.1%)24 (6.4%)
 Moderate27 (5.1%)11 (7.1%)16 (4.2%)
 Severe33 (6.2%)13 (8.4%)20 (5.3%)
Aortic regurgitation, n (%)0.1219
 None159 (29.9%)39 (25.2%)120 (31.8%)
 Mild233 (43.8%)77 (49.7%)156 (41.4%)
 Moderate90 (16.9%)29 (18.7%)61 (16.2%)
 Severe50 (9.4%)10 (6.5%)40 (10.6%)
Aortic stenosis, n (%)0.8668
 None437 (82.1%)125 (80.6%)312 (82.8%)
 Mild55 (10.3%)16 (10.3%)39 (10.3%)
 Moderate17 (3.2%)6 (3.9%)11 (2.9%)
 Severe23 (4.3%)8 (5.2%)15 (4.0%)
Medication
β-Blockers, n (%)367 (69.0%)108 (69.7%)259 (68.7%)0.825
 ACEI/ARB, n (%)163 (30.6%)55 (35.5%)108 (28.7%)0.120
 Antithrombotic drugs, n (%)234 (44.0%)78 (50.3%)156 (41.4%)0.059
 Diuretic agents, n (%)109 (20.5%)29 (18.7%)80 (21.2%)0.515

Note. Data were expressed as n (%) or median (interquartile range). COPD, chronic obstructive pulmonary disease; ACEI, angiotensin-converting enzyme inhibitors; ARB, angiotensin receptor blockers; NYHA, New York Heart Association; LAd, left atrium diameter; LVDd, left ventricular internal diameter at end-diastole; LVSd, left ventricular internal diameter at end-systole; LVEF, left ventricular ejection fraction; and VHD, valvular heart disease.