Metformin remains a widely-used, first-line pharmacotherapy agent for patients with type 2 diabetes mellitus because of its efficacy, mild side effects, and affordability.However, use of this medication has traditionally been shunned by clinicians in patient populations that are considered at risk of lactic acidosis, such as those with heart failure. The underutilization of metformin can largely be attributed to the historical stigma of its biguanide predecessor, phenformin, and its association with lactic acidosis. Despite various studies finding low rates of lactic acidosis and the United States Federal Drug Administration's subsequent removal of heart failure from metformin's contraindication labeling in 2006, this oral hypoglycemic remains underutilized in this patient population. In addition to reports of the safe use of metformin in the heart failure population, a multitude of studies have also additionally suggested a modest reduction in mortality and morbidity. Metformin's role should be strongly reconsidered in the armamentarium of diabetes management in heart failure patients.
Oritavancin, a lipoglycopeptide antibiotic, recently received US FDA approval for the treatment of adult patients with acute bacterial skin and skin structure infections (ABSSSI). Oritavancin, unlike other intravenous antibiotics that are currently available for the treatment of ABSSSI (e.g., vancomycin, daptomycin, telavancin, dalbavancin), offers the option of a single-dose complete regimen. The dosing schedule of oritavancin eliminates the need for an indwelling catheter and introduces the possibility of avoidance of a hospital admission; although, treatment in non-hospital settings has not been adequately evaluated in clinical trials. The availability of oritavancin adds another agent to our antibiotic armamentarium providing dosing flexibility and an alternative treatment option for treatment of ABSSSI caused by susceptible bacteria, including methicillin-resistant Staphylococcus aureus.
To our knowledge, no cases of Bartonella henselae endocarditis leading to subsequent heart transplantation salvage therapy have been published. We present a case of a 29‐year‐old man with cat‐inflicted B henselae endocarditis and concurrent worsening heart failure, who then underwent successful heart transplantation 50 days following diagnosis. Treatment and monitoring strategies used in this patient are discussed. Furthermore, we review literature related to heart transplantation salvage therapy for endocarditis due to other intracellular pathogens.
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