…fibrillation with onset during hyperthyroidism (thyrotoxicosis), alcohol overdose, thoracic surgery, acute myocardial infarction, pericarditis/myocarditis or pulmonary embolism is often a reversible arrhythmia with low…

…and trimetazidine are additional options in selected patients. Treatment choices should be integrated with management of precipitating factors such as anaemia, uncontrolled hypertension, thyrotoxicosis, tachyarrhythmia…

…uncontrolled hypertension, thyrotoxicosis, tachyarrhythmias, uncontrolled heart failure, and concomitant valvular heart disease. In patients with ANOCA/INOCA, symptoms may persist despite non obstructive coronary anatomy…

…Other causes include immobilization, sarcoidosis, thyrotoxicosis, familial hypocalciuric hypercalcemia, Addison's disease, renal insufficiency, therapeutic interventions with tamoxifen or lithium, thiazide administration, and over supplementation…

…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…