Three-Dimensional Speckle-Tracking Echocardiography-Derived Tricuspid Annular Properties in Acromegaly-Results from the MAGYAR-Path Study.

INTRODUCTION

Acromegaly is an endocrine pathology characterized by the overproduction of human growth hormone. The present study aimed to analyze three-dimensional speckle-tracking echocardiography (3DSTE)-derived tricuspid annular (TA) properties in detail in patients with acromegaly and to compare the findings to those of matched healthy controls.

METHODS

The present study consisted of 29 patients with acromegaly (mean age: 55.9 ± 14.5 years, 21 males), of which 13 had an active disease. The control population comprised 57 healthy subjects (mean age: 53.2 ± 8.4 years, 38 males).

RESULTS

In the presence of acromegaly, left atrial and end-diastolic left ventricular (LV) sizes were dilated, and LV ejection fraction was increased, which was accompanied by thickened interventricular septum and LV posterior wall as compared with matched healthy controls. The presence of grade 1 mitral (MR) and tricuspid (TR) regurgitations were more frequent in acromegaly than in controls, regardless of disease activity. Higher than grade 1 MR/TR was uncommon in acromegaly. The 3DSTE-derived all end-diastolic (2.47 ± 0.27 cm vs. 2.23 ± 0.27 cm; 8.73 ± 1.77 cm vs. 6.67 ± 1.40 cm; 11.56 ± 1.34 cm vs. 10.20 ± 1.10 cm, < 0.001 for all) and end-systolic (1.97 ± 0.27 cm vs. 1.77 ± 0.28 cm; 6.24 ± 1.61 cm vs. 5.01 ± 1.42 cm; 9.80 ± 1.35 cm vs. 8.72 ± 1.10 cm, < 0.001 for all) TA diameters, areas, and perimeters proved to be dilated, while TA functional parameters including TA fractional area change (28.77 ± 9.80% vs. 27.64 ± 15.34%, = 0.720) and fractional shortening (20.60 ± 9.08% vs. 20.51 ± 8.81%, = 0.822) were normal in acromegaly regardless of whether acromegaly was active or not. RA volumes respecting the cardiac cycle were dilated in acromegaly as compared with those of healthy controls regardless of disease activity and were associated with respective changes in TA dimensions.

CONCLUSIONS

In the presented acromegaly patients, significant TA dilation with preserved function could be detected regardless of disease activity. RA volumes and TA dimensions are correlated in acromegaly.