Incidental detection of pheochromocytoma during workup for symptomatic aortic stenosis: A case report and management discussion.

Pheochromocytoma patients with high levels of circulating catecholamines are at risk of cardiovascular complications related to hypertensive emergencies and subsequent organ damage. A patient with concomitant aortic stenosis and pheochromocytoma has compounded risk of cardiovascular complications, especially during surgery, which complicates medical decision-making. We report a patient with Turner syndrome and congenital heart defects (CHDs) who was incidentally discovered to have a pheochromocytoma during workup of symptomatic severe bioprosthetic aortic stenosis.

Tracheal Bronchus With Difficult Lung Isolation: A Case Report.

Tracheal bronchus (TB) occurs in 0.1-3% of the population as an accessory bronchus that originates in the trachea, typically supplying the right upper lobe. The presence of a TB can pose unique airway challenges, particularly during procedures that require lung isolation.

Impaired autoregulation of cerebral blood flow during rewarming from hypothermic cardiopulmonary bypass and its potential association with stroke.

Background: Patient rewarming after hypothermic cardiopulmonary bypass (CPB) has been linked to brain injury after cardiac surgery. In this study, we evaluated whether cooling and then rewarming of body temperature during CPB in adult patients is associated with alterations in cerebral blood flow (CBF)-blood pressure autoregulation.

Methods: One hundred twenty-seven adult patients undergoing CPB during cardiac surgery had transcranial Doppler monitoring of the right and left middle cerebral artery blood flow velocity.