The assessment of left ventricular systolic asynchrony in patients with primary hyperparathyroidism.
Echocardiography
; 28(9): 955-60, 2011 Oct.
Article
in En
| MEDLINE
| ID: mdl-21827546
ABSTRACT
OBJECTIVES:
Primary hyperparathyroidism (PHP) is associated with a variety of cardiovascular disturbances such as left ventricular (LV) hypertrophy, diastolic cardiac dysfunction, and hypertension. LV asynchrony is defined as the loss of the simultaneous peak contraction of corresponding cardiac segments. The objective of this study was to assess systolic asynchrony in patients with overt hyperparthyroidism.METHODS:
Asynchrony was evaluated in 22 patients with PHP and 24 controls. All the patients and controls were subjected to a tissue synchronization imaging (TSI). The time to regional peak systolic tissue velocity (Ts) in LV by the six-basal-six-midsegmental model was measured on ejection phase TSI images and four TSI parameters of systolic asynchrony were computed.RESULTS:
All TSI parameters of LV asynchrony increased in patients with PHP patients compared to the controls the standard deviation (SD) of the 12 LV segments Ts (37.3±20.6 vs. 21.5±11.1, P=0.01); the maximal difference in Ts between any 2 of the 12 LV segments (111.2±59.8 vs. 70.2±32.1, P=0.01); the SD of the 6 basal LV segments (42.9±36.4 vs. 18.5±13, P=0.003); and the maximal difference in Ts between any 2 of the 6 basal LV segments (89.6±50.5 vs. 48±31.1, P=0.003).CONCLUSION:
Patients with PHP show an evidence of LV asynchrony by TSI. Asynchrony may contribute to the harmful cardiovascular effects of PHP.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Echocardiography, Doppler
/
Ventricular Dysfunction, Left
/
Hyperparathyroidism, Primary
Type of study:
Observational_studies
/
Risk_factors_studies
Limits:
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Echocardiography
Journal subject:
CARDIOLOGIA
/
DIAGNOSTICO POR IMAGEM
Year:
2011
Type:
Article
Affiliation country:
Turkey