Research Article

Prognostic Value of Left Ventricular Diastolic Dysfunction in Patients Undergoing Cardiac Catheterization for Coronary Artery Disease

Table 2

Clinical and hemodynamic features of patient subgroups stratified by left ventricular relaxation time constant (Tau) and peak early diastolic mitral annular velocity ( ).

Tau
≤48 ms>48 ms Value≥5.8 cm/s<5.8 cm/s value
( )( )( )( )

Age, year NS <0.001
Men76%82%NS80%75%NS
Body mass index, kg/m2 NS NS
Hypertension47%53%NS52%49%NS
Diabetes40%41%NS35%53%<0.05
Dyslipidemia80%94%<0.0183%91%NS
Previous myocardial infarction48%76%<0.00153%75%<0.01
Previous coronary revascularization42%53%NS44%52%NS
Coronary revascularization after the index cardiac catheterization18%31%<0.0519%33%<0.05
Serum creatinine, mg/dL NS NS
Medications
 Angiotensin converting enzyme inhibitors/angiotensin receptor blockers39%48%NS38%55%<0.05
β-blocker30%56%<0.00141%41%NS
 Calcium blocker35%29%NS37%23%<0.05
 Statins52%66%NS58%60%NS
 Antiplatelet agents77%87%<0.0581%82%NS
Number of coronary arteries narrowed<0.01<0.01
 032%15%31%12%
 126%26%26%26%
 >142%59%43%62%
Heart rate, beat/min <0.001 NS
Systolic aortic pressure, mmHg <0.05 0.07
Diastolic aortic pressure, mmHg NS NS
Left ventricular end-diastolic pressure, mmHg <0.001 NS
Relaxation time constant (Tau), ms <0.001 <0.01
Left ventricular end-diastolic volume index, mL/m2 <0.001 <0.001
Left ventricular end-systolic volume index, mL/m2 <0.001 <0.001
Ejection fraction, % <0.001 <0.001