Efficacy and Cardiovascular Safety of Sulfonylureas.

There is a universal agreement that when lifestyle modifications are inadequate to control the hyperglycemia, metformin should be considered the first line of pharmacological therapy. However, when metformin monotherapy fails, there is no consensus as to which drug should be added. Many new classes of drugs that are currently available including DPP-4 inhibitors, GLP-1 agonists and SGLT-2 inhibitors have undergone cardiovascular outcome trials which had been made mandatory by the regulatory authority and thereby established their cardiovascular safety or at least neutrality. Though sulfonylureas are one of the widely prescribed drugs both in developed and developing countries and have proven their efficacy for glycemic control and prevention of microvascular complications, there is considerable uncertainty about its cardiovascular safety which has been going on for nearly five decades. In this review, we will critically analyze the efficacy and cardiovascular safety of sulphonylureas, based on the latest available literature to clarify their role in our day-to-day clinical practice.

Apathetic Thyroid Storm with Cardiorespiratory Failure, Pulmonary Embolism, and Coagulopathy in a Young Male with Graves' Disease and Myopathy.

A 38-year-old gentleman presented with thyroid storm with multiorgan involvement in the form of heart failure (thyrotoxic cardiomyopathy), respiratory failure (respiratory muscle fatigue), hepatic dysfunction, fast atrial fibrillation, pulmonary embolism, and disseminated intravascular coagulation (DIC). His Graves' disease (GD) remained undiagnosed for nearly 8 months because apart from weight loss, he has not had any other symptoms of thyrotoxicosis. The presentation of thyroid storm was atypical (apathetic thyroid storm) with features of depression and extreme lethargy without any fever, anxiety, agitation, or seizure. There were no identifiable triggers for the thyroid storm. Apart from mechanical ventilation and continuous veno-venous renal replacement therapy in the intensive care unit, he received propylthiouracil (PTU), esmolol, and corticosteroids, which were later switched to carbimazole and propranolol with steroids being tapered down. He was diagnosed with thyrotoxic myopathy which, like GD, remained undiagnosed for long (fatigability). A high index of suspicion and a multidisciplinary care are essential for good outcome in these patients.