…atrial flutter, AVNRT and AVRT (pre excitation, WPW syndrome) being the most common. Atrial fibrillation with onset during hyperthyroidism (thyrotoxicosis), alcohol overdose, thoracic surgery, acute…

…hyperparathyroidism and malignancies cause 90% of all cases of hypercalcemia. Less common causes are immobilization, sarcoidosis, thyrotoxicosis, familial hypocalciuric hypercalcemia, Addison's disease, renal failure…

…in selected patients. Treatment choices should be integrated with management of precipitating factors such as anaemia, uncontrolled hypertension, thyrotoxicosis, tachyarrhythmia, uncontrolled heart failure, and concomitant…

…should seek factors that increase myocardial oxygen demand or worsen ischaemia, including anaemia, uncontrolled hypertension, thyrotoxicosis, tachyarrhythmias, uncontrolled heart failure, and concomitant valvular heart disease…

…cases, hypercalcemia is attributed to primary hyperparathyroidism or neoplastic etiologies. Other causes include immobilization, sarcoidosis, thyrotoxicosis, familial hypocalciuric hypercalcemia, Addison's disease, renal insufficiency, therapeutic…