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Related Concept Videos

Fluid Pressure01:14

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In mechanical engineering, fluid pressure plays a critical role in designing systems that utilize liquid flow, such as hydraulic systems, pumps, and valves. When designing these systems, engineers must ensure they can withstand the forces created by fluid pressure to avoid damage or failure.
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Static, Stagnation, Dynamic and Total Pressure01:24

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The concept of pressure at a point in a fluid establishes that pressure within a fluid is uniform in all directions at a specific location. This uniformity occurs because fluid molecules exert force evenly across any point due to their random motion and continuous collisions within the fluid. Pressure at a point is determined by the surrounding fluid molecules and is influenced by factors like depth and density, rather than by shape or orientation.
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Updated: Mar 31, 2026

A Microfluidic-based Hydrodynamic Trap for Single Particles
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[High pressure trap].

F Aboukhoudir1, I Aboukhoudir2, O Rica2

  • 1Service de cardiologie, centre hospitalier d'Avignon, 84000 Avignon, France; EA4278, laboratoire de pharm-écologie cardiovasculaire, Avignon université, 84000 Avignon, France.

Annales De Cardiologie Et D'Angeiologie
|October 24, 2015
PubMed
Summary
This summary is machine-generated.

Pheochromocytoma, a rare tumor, can cause life-threatening cardiac issues. This case highlights how myocardial ischemia due to pheochromocytoma reversed after surgical treatment.

Keywords:
Acute heart failureChirurgieInsuffisance cardiaque aiguëPheochromocytomaPhéochromocytomeSurgery

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Area of Science:

  • Cardiology
  • Endocrinology
  • Oncology

Background:

  • Pheochromocytoma is a rare neuroendocrine tumor arising from chromaffin cells, often in the adrenal medulla.
  • It is associated with diverse and non-specific symptoms, making diagnosis challenging.
  • Cardiac manifestations, including arrhythmias and myocardial issues, can mimic other cardiac conditions.

Observation:

  • A patient presented with myocardial ischemia, acute cardiac failure, and severe left ventricular depression.
  • Associated hypokalemia was noted, a common electrolyte disturbance in pheochromocytoma.
  • These cardiac symptoms were initially misleading, obscuring the underlying diagnosis.

Findings:

  • The patient's condition was revealed to be caused by an undiagnosed pheochromocytoma.
  • Myocardial ischemia and cardiac dysfunction were directly linked to the tumor's hormonal activity.
  • Surgical removal of the pheochromocytoma led to a complete reversal of cardiac symptoms.

Implications:

  • This case underscores the importance of considering pheochromocytoma in patients with unexplained cardiac events, especially with hypokalemia.
  • Early diagnosis and surgical intervention are crucial for managing pheochromocytoma and preventing potentially fatal cardiac complications.
  • Recognizing the diverse symptomatology of pheochromocytoma can improve diagnostic accuracy and patient outcomes.