Persistent but reversible advanced atrio-ventricular block in a heart transplant man induced by dobutamine stress echocardiography.

Dobutamine when used for stress echocardiography (DSE), it rarely causes transient atrio-ventricular (AV) block. We report a heart transplant patient with high cardiovascular risk who developed symptomatic advanced AV block during DSE which persisted after termination of dobutamine administration, necessitating pacemaker implantation. To our knowledge, this is the first published case of persistent high grade AV block in a heart transplant patient induced by DSE.

Left atrial impression due to lymphadenopathy in an HIV seropositive patient infected with tuberculosis.

We describe a unique case of a 37-year-old patient who was diagnosed with human immunodeficiency virus/tuberculosis co-infection due to a cardiac involvement that consisted in atrial fibrillation as a consequence of a compression of the left atrium by a giant necrotic lymphadenopathy and a pericardial effusion.