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Severe sleep apnea-hypopnea syndrome is related to left ventricle dysfunction and hypertrophy in acromegalic patients.
Endocrinología y Nutrición : órgano de la Sociedad Española de Endocrinología y Nutrición 2015 October
OBJECTIVE: To assess whether sleep apnea-hypopnea syndrome (SAHS) is a risk factor for development of acromegalic cardiomyopathy.
METHODS: A descriptive, cross-sectional study of 32 patients with acromegaly (15 categorized as non-controlled-NCA and 17 as controlled-CA) compared to 20 matched controls (by sex, age, and BMI) referred to the pulmonology department for suspected SAHS. Polysomnography, echocardiography (M-mode, 2-dimensional, and Doppler), and 12-lead electrocardiography were performed in all participants. Development of cardiac morbidity (ischemia heart disease or heart failure) was evaluated after 7 years.
RESULTS: SAHS was diagnosed in 81.3% of patients with acromegaly and 85% of controls. Mild SAHS was more common in CA than in NCA patients (31.3% vs. 0%, p=0.048). There was a trend to greater prevalence of left ventricular diastolic dysfunction (LVDD) in acromegalic patients as compared to controls (58.1% vs. 30%, p=0.05). Presence of severe SAHS in patients with acromegaly was related to greater risk of LVDD (90.9% vs. 40%, p=0.008; OR 2.3 [1.3-4.0]), LV hypertrophy (55.6% vs. 10.5%, p=0.02; OR 5.3 [1.3-22.2]), and cardiac events (87.5% vs. 35.6%; p=0.01; OR 7.53 [1.07-53.24]).
CONCLUSION: SAHS is highly prevalent in patients with acromegaly. Only in these patients was severe SAHS associated to hypertrophy, LV diastolic dysfunction, and cardiac events.
METHODS: A descriptive, cross-sectional study of 32 patients with acromegaly (15 categorized as non-controlled-NCA and 17 as controlled-CA) compared to 20 matched controls (by sex, age, and BMI) referred to the pulmonology department for suspected SAHS. Polysomnography, echocardiography (M-mode, 2-dimensional, and Doppler), and 12-lead electrocardiography were performed in all participants. Development of cardiac morbidity (ischemia heart disease or heart failure) was evaluated after 7 years.
RESULTS: SAHS was diagnosed in 81.3% of patients with acromegaly and 85% of controls. Mild SAHS was more common in CA than in NCA patients (31.3% vs. 0%, p=0.048). There was a trend to greater prevalence of left ventricular diastolic dysfunction (LVDD) in acromegalic patients as compared to controls (58.1% vs. 30%, p=0.05). Presence of severe SAHS in patients with acromegaly was related to greater risk of LVDD (90.9% vs. 40%, p=0.008; OR 2.3 [1.3-4.0]), LV hypertrophy (55.6% vs. 10.5%, p=0.02; OR 5.3 [1.3-22.2]), and cardiac events (87.5% vs. 35.6%; p=0.01; OR 7.53 [1.07-53.24]).
CONCLUSION: SAHS is highly prevalent in patients with acromegaly. Only in these patients was severe SAHS associated to hypertrophy, LV diastolic dysfunction, and cardiac events.
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