Acromegalic cardiopathy: a left ventricular scintigraphic study.
In order to study "acromegalic cardiomyopathy", cardiac function was examined, using gated radionuclide ventriculography, in 18 acromegalic patients and 21 control subjects with no clinical evidence of cardiac involvement. In these acromegalic subjects, while the Ejection Fraction (EF) did not appear to be significantly different, the Peak Filling Rate (PFR) was reduced while the Time to Peak Filling Rate (TPFR) resulted significantly greater than in control subjects. These findings indicate that chronic growth hormone (GH) hypersecretion, as observed in acromegaly, deteriorate the cardiac ventricular relaxation (diastolic phase) while it has no influence on contractility (systolic phase).
Sicolo
N
N
Cattedra di Endocrinologia, Università di Padova, Italy.
Bui
F
F
Sicolo
M
M
Varotto
L
L
Martini
C
C
Macor
C
C
Federspil
G
G
D000172:Acromegaly / Q000150:complications* / Q000503:physiopathology; D000368:Aged; D013006:Growth Hormone / Q000378:metabolism; D006331:Heart Diseases / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D009200:Myocardial Contraction; D011877:Radionuclide Imaging; D013318:Stroke Volume; D016277:Ventricular Function, Left
D013006:Growth Hormone