Abstract
Aim
The aim was to evaluate left ventricular (LV) systolic function in patients with isolated mitral stenosis (MS) using 2D speckle tracking echocardiography.
Methods
24 patients (39.50 ± 5.55 years, 17 females) with isolated MS (MVA: 1.35 ± 0.16 cm2) with preserved LV systolic function and sinus rhythm were compared to 12 matched healthy control subjects (36.42 ± 5.99 years, 8 females). Conventional echocardiography was performed to both groups. Longitudinal strain and Circumferential strain echocardiography were obtained. Peak systolic strain was measured from the mean strain profile for a total of 17 segments of the LV for the longitudinal strain and 16 segments for the circumferential strain. Global longitudinal (G.L.) and circumferential strain (G.C.) were calculated separately as the average of the sum of the studied segments.
Results
The global longitudinal strain of the cases group ranged from -11 – -17% with a mean value of -14.67 ± -1.69% and that of the control group ranged from -15 – -20% with a mean value of -17.83 ± -1.53% with a statistically significant difference between the two groups.
In our study, there was a negative but non-significant correlation between LV GLSS and LA diameter (r = -0.054, p = 0.802), Echo score (r = -0.018, p = 0.933) and PASP (r = 0.021, p = 0.922) in patients group.
Also, the correlation was negative but non-significant between LV GCSS and LA diameter (r = -0.142, p = 0.507), Echo score (r = -0.200, p = 0.349) and PASP (r = -0.155, p = 0.471) in patients group.
Conclusion
• 2D speckle tracking echocardiography can detect subclinical LV systolic dysfunction which cannot be recognized by 2D conventional echocardiography.
• Isolated rheumatic MS may be associated with subclinical LV systolic dysfunction.