I. Acromegaly
II. Thyroid Diseases
III. Adrenal Disorders

cardiac output increase significantly. Virtually all cases of acromegaly are caused by a chromophobic or eosinophilic adenoma of the pituitary. Rarely, it is caused by excessive secretion of the somatostatin-releasing hormone from the hypothalamus.

GLOSSARY
angina chest pain caused by temporary lack of blood to an
area of heart muscle cells, usually caused by severe obstruction
of the artery supplying blood to the segment of cells. arrhythmia general term for an irregularity or rapidity of the
heartbeat, an abnormal heart rhythm. cardiomyopathy heart muscle disease. heart failure failure of the heart to pump sufficient blood from
the chambers into the aorta; inadequate supply of blood
reaches organs and tissues. myocardial infarction death of an area of heart muscle due to
blockage of a coronary artery by blood clot and atheroma;
medical term for heart attack or coronary thrombosis. myocardium heart muscle. tachycardia increase in heart rate exceeding 100 beats per
minute.

• I. ACROMEGALY
  The anterior pituitary gland secretes at least seven polypeptide hormones. Two of these hormones are released by the hypothalamus: somatostatin-releasing hormone which stimulates growth hormone secretion and somato-statin which regulates the release of growth hormone from the anterior pituitary. Growth hormone regulates an individual’s growth. It also increases the heart rate and myocardial contractility. Specific receptors for growth hormone in the myocardium promote cardiac remodel¬ing, increased contractility, and myocytic hypertrophy. Excess growth hormone secretion causes acromegaly. With this disease, the left ventricle mass, stroke volume, and
• II. THYROID DISEASES
  A. Thyrotoxicosis
• III. ADRENAL DISORDERS
  A. Cushing’s Syndrome
• BIBLIOGRAPHY
  Masoudi, F. A., Inzucchi, S. E., Wang, Y., Havranek, E. P., Foody, J. M.,