Orthotopic Heart Transplantation in a Patient With Hypertrophic Cardiomyopathy and Marfan Syndrome.

A 24-year-old man with Marfan syndrome and heart failure from hypertrophic cardiomyopathy was referred to our institution in cardiogenic shock for advanced therapies. He was supported by a femoral intra-aortic balloon pump, then bridged to orthotopic heart transplantation. This is a report of an orthotopic heart transplantation in a patient with both Marfan syndrome and heart failure from hypertrophic cardiomyopathy.

In Vivo Mapping of Myocardial Injury Outside the Infarct Zone: Tissue at an Intermediate Pathological State.

Background: The goal was to determine the feasibility of mapping the injured-but-not-infarcted myocardium using Tc-duramycin in the postischemic heart, with spatial information for its characterization as a pathophysiologically intermediate tissue, which is neither normal nor infarcted.

Methods And Results: Coronary occlusion was conducted in Sprague Dawley rats with preconditioning and 30-minute ligation. In vivo single-photon emission computed tomography was acquired after 3 hours (n=6) using Tc-duramycin, a phosphatidylethanolamine-specific radiopharmaceutical.

Prolonged exposure to lung-derived cytokines is associated with activation of microglia in patients with COVID-19.

BACKGROUNDSurvivors of pneumonia, including SARS-CoV-2 pneumonia, are at increased risk for cognitive dysfunction and dementia. In rodent models, cognitive dysfunction following pneumonia has been linked to the systemic release of lung-derived pro-inflammatory cytokines. Microglia are poised to respond to inflammatory signals from the circulation, and their dysfunction has been linked to cognitive impairment in murine models of dementia and in humans.

Consensus statement on the processing, interpretation and reporting of temporal artery biopsy for arteritis.

Giant cell arteritis (GCA) is the most common systemic vasculitis in adults in Europe and North America, typically involving the extra-cranial branches of the carotid arteries and the thoracic aorta. Despite advances in noninvasive imaging, temporal artery biopsy (TAB) remains the gold standard for establishing a GCA diagnosis. The processing of TAB depends largely on individual institutional protocol, and the interpretation and reporting practices vary among pathologists.

Don't judge a book by its cover: a case report of apolipoprotein A-IV cardiac amyloidosis.

Background: To date, at least 20 different amyloidogenic proteins have been documented. Growing evidence suggests that despite being part of the universal amyloid proteome, apolipoprotein A-IV can be amyloidogenic, accounting for less than 1% of cases.

Case Summary: A 75-year-old woman was admitted for paroxysmal nocturnal dyspnoea and intermittent exertional shortness of breath and was found to be in acute heart failure.