TY - JOUR
T1 - Effects of isolated obesity on left and right ventricular function
T2 - A tissue doppler and strain rate imaging study
AU - Orhan, Ahmet L.
AU - Uslu, Nevzat
AU - Dayi, Sennur U.
AU - Nurkalem, Zekeriya
AU - Uzun, Fatih
AU - Erer, Hatice B.
AU - Hasdemir, Hakan
AU - Emre, Ayse
AU - Karakus, Gultekin
AU - Soran, Ozlem
AU - Gorcsan, John
AU - Eren, Mehmet
PY - 2010/3
Y1 - 2010/3
N2 - Objective: To determine the subclinical effects of isolated obesity and its duration on cardiac function by using routine echocardiography and tissue Doppler myocardial strain rate. Methods: Forty-nine subjects were enrolled in this study; 29 with isolated obesity defined as a body mass index ≥30 kg/m2 with no other cardiovascular comorbidities, and 20 nonobese controls. All subjects underwent two-dimensional and Doppler echocardiography including tissue Doppler imaging and myocardial strain rate. Results: The average duration of obesity was 12.1 years (4-18 years). Abnormalities of left ventricular (LV) wall thickness, mass, diastolic function, and left atrial size were detected in obese individuals, despite having preserved ejection fractions. The LV global longitudinal peak strain rate was significantly lower in obese subjects compared to nonobese control subjects (1.07 ± 0.14 vs. 1.38 ± 0.12, P < 0.001). Using multivariate analysis, the duration of obesity (ß = -0.76, P < 0.001), body mass index (ß = -0.35, P = 0.023), and age (ß = -0.29, P = 0.009) were independent predictors of the decreased LV global longitudinal peak strain rate, while the duration of obesity (ß = -0.66, P < 0.001) and body mass index (ß = -0.28, P = 0.037) were independent predictors of the decreased right ventricular (RV) peak strain rate. Conclusion: The presence and the duration of obesity were associated with impairment of subclinical biventricular systolic and diastolic function. These findings have the potential to increase awareness of subclinical cardiac manifestations in patients with isolated obesity and influence their early management.
AB - Objective: To determine the subclinical effects of isolated obesity and its duration on cardiac function by using routine echocardiography and tissue Doppler myocardial strain rate. Methods: Forty-nine subjects were enrolled in this study; 29 with isolated obesity defined as a body mass index ≥30 kg/m2 with no other cardiovascular comorbidities, and 20 nonobese controls. All subjects underwent two-dimensional and Doppler echocardiography including tissue Doppler imaging and myocardial strain rate. Results: The average duration of obesity was 12.1 years (4-18 years). Abnormalities of left ventricular (LV) wall thickness, mass, diastolic function, and left atrial size were detected in obese individuals, despite having preserved ejection fractions. The LV global longitudinal peak strain rate was significantly lower in obese subjects compared to nonobese control subjects (1.07 ± 0.14 vs. 1.38 ± 0.12, P < 0.001). Using multivariate analysis, the duration of obesity (ß = -0.76, P < 0.001), body mass index (ß = -0.35, P = 0.023), and age (ß = -0.29, P = 0.009) were independent predictors of the decreased LV global longitudinal peak strain rate, while the duration of obesity (ß = -0.66, P < 0.001) and body mass index (ß = -0.28, P = 0.037) were independent predictors of the decreased right ventricular (RV) peak strain rate. Conclusion: The presence and the duration of obesity were associated with impairment of subclinical biventricular systolic and diastolic function. These findings have the potential to increase awareness of subclinical cardiac manifestations in patients with isolated obesity and influence their early management.
KW - Diastolic function
KW - Obesity
KW - Strain rate imaging
KW - Systolic function
UR - http://www.scopus.com/inward/record.url?scp=77949754966&partnerID=8YFLogxK
U2 - 10.1111/j.1540-8175.2009.01024.x
DO - 10.1111/j.1540-8175.2009.01024.x
M3 - Article
C2 - 20070359
AN - SCOPUS:77949754966
SN - 0742-2822
VL - 27
SP - 236
EP - 243
JO - Echocardiography
JF - Echocardiography
IS - 3
ER -