“…The mechanism of action of STS is unclear, but could involve the dissolution of calcium deposits, chelation of calcium ions, antioxidant effects, and/or vasodilatory properties. However, in previous reports, prolonged STS use was associated with multiple adverse effects including STS-induced metabolic acidosis, nausea, vomiting, headache, hypotension, and electrocardiographic abnormalities [6]. Our patient was treated with STS for 27 weeks.…”