Research Article

Differential Gene Expression Profile of Renin-Angiotensin System in the Left Atrium in Mitral Regurgitation Patients

Table 2

Baseline clinical characteristics of the study subjects.

MR ()AVD ()NC () value

Age (years)57 ± 1160 ± 1249 ± 120.053
Male (%)5 (27.8%)9 (75.0%)10 (62.5%)0.024
Smoking (%)2 (5.6%)1 (8.3%)2 (12.5%)0.772
Body mass index (kg/m2)23.7 ± 2.625.3 ± 3.423.6 ± 3.40.168
Hypertension (%)8 (44.4%)7 (58.3%)0 (0.0%)0.002
Diabetes mellitus (%)3 (16.7%)1 (8.3%)0 (0.0%)0.227
Hyperlipidemia (%)6 (33.3%)3 (25.0%)NA0.704a
NYHA0.324a
 Functional class I (%)2 (11.1%)3 (25.0%)
 Functional class II (%)7 (38.9%)5 (41.7%)
 Functional class III (%)9 (50.0%)3 (25.0%)
 Functional class IV (%)0 (0.0%)1 (8.3%)
Aortic valve disease (%)0 (0.0%)12 (100.0%)
Tricuspid regurgitation (%)7 (38.9%)1 (8.3%)0.099a
β-Blockers (%)3 (16.7%)2 (16.7%)1.000a
Calcium channel blockers (%)5 (27.8%)5 (41.7%)0.461a
Angiotensin-converting enzyme inhibitors or angiotensin II receptor blockers (%)14 (77.8%)4 (33.3%)0.024a
Systolic blood pressure (mmHg)127.3 ± 21.7131.5 ± 17.0124.3 ± 12.30.672
Diastolic blood pressure (mmHg)77.8 ± 11.271.6 ± 7.775.6 ± 8.70.364
Heart rate (beats/min)78.2 ± 12.671.1 ± 10.678.9 ± 9.10.162
Creatinine (mg/dL)0.9 ± 0.60.9 ± 0.20.8 ± 0.20.089
eGFR (mL/min/1.73 m2)86.2 ± 22.379.0 ± 17.392.4 ± 17.10.093
White blood cell count (103/μL)6.1 ± 1.75.8 ± 1.56.0 ± 1.40.775
Left atrial diameter (mm)43.7 ± 5.138.8 ± 4.7NA0.019a
Left atrial maximal volume (mL)86.4 ± 38.858.8 ± 38.0NA0.083a
Left atrial ejection fraction (%)51.6 ± 14.444.7 ± 19.5NA0.376a
Left ventricular end-diastolic diameter (mm)56.3 ± 6.458.3 ± 11.9NA0.384a
Left ventricular ejection fraction (%)67.7 ± 11.062.2 ± 12.9NA0.396a

Data are presented as mean ± SD or number (percentage); AVD: aortic valve disease; MR: mitral regurgitation; NC: control subjects without valve disease and heart failure; NYHA: New York Heart Association; a value: MR vs. AVD.