• (heart tamponade) Compression of heart from pericardial effusion or hemopericardium.
  CRISP Thesaurus
  National Institutes of Health, 2006
• Acute compression of the heart caused by increased intrapericardial pressure due to the accumulation of blood or fluid in the pericardium from rupture of the heart or great vessels, penetrating trauma, or progressive effusion.
  U.S. FDA Glossary
  U.S. Food & Drug Administration, 2021
• Compression of the heart by accumulated fluid (PERICARDIAL EFFUSION) or blood (HEMOPERICARDIUM) in the PERICARDIUM surrounding the heart. The affected cardiac functions and CARDIAC OUTPUT can range from minimal to total hemodynamic collapse.
  NLM Medical Subject Headings
  U.S. National Library of Medicine, 2021
• The accumulation of pericardial fluid with subsequent compression of all cardiac chambers which prevents cardiac filling.
  Human Phenotype Ontology (HPO)
  The Human Phenotype Ontology Project, 2021
• When fluid or blood pools within the sac surrounding the heart, squeezing the heart and interfering with its ability to pump.
  Harvard Dictionary of Health Terms
  Harvard Medical Publishing, 2011
• (pericardial tamponade) A disorder characterized by an increase in intrapericardial pressure due to the collection of blood or fluid in the pericardium.
  Common Terminology Criteria for Adverse Events
  U.S. National Institutes of Health, 2021
• Cardiac tamponade is accumulation of blood in the pericardial sac of sufficient volume and pressure to impair cardiac filling. Patients typically have hypotension, muffled heart tones, and distended neck veins. Diagnosis is made clinically and often with bedside echocardiography. Treatment is immediate pericardiocentesis or...
  Merck Manuals
  Merck & Co., Inc., 2020
• Cardiac tamponade is a clinical syndrome caused by the accumulation of fluid in the pericardial space, resulting in reduced ventricular filling and subsequent hemodynamic compromise. The condition is a medical emergency, the complications of which include pulmonary edema, shock, and death.
  Medscape
  WebMD, 2019
• Cardiac tamponade is the accumulation of pericardial fluid, blood, pus, or air within the pericardial space that creates an increase in intrapericardial pressure, restricting cardiac filling and decreasing cardiac output. Cardiac tamponade is a cardiac emergency and can be fatal if it is not quickly diagnosed and treated promptly. The...
  Epocrates
  Athenahealth, Inc., 2019