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Cardiac tamponade, also known as pericardial tamponade (/ ËŒ t æ m. p É™ ˈ n eɪ d / [4]), is a compression of the heart due to pericardial effusion (the build-up of pericardial fluid in the sac around the heart). [2] Onset may be rapid or gradual. [2]
Beck's triad is a collection of three medical signs associated with acute cardiac tamponade, a medical emergency when excessive fluid accumulates in the pericardial sac around the heart and impairs its ability to pump blood. The signs are low arterial blood pressure, distended neck veins, and distant, muffled heart sounds. [1]
The classic symptoms include a slow heart rate due to loss of cardiac sympathetic tone and warm skin due to dilation of the peripheral blood vessels. [20] This term can be confused with spinal shock which is a recoverable loss of function of the spinal cord after injury and does not refer to the hemodynamic instability.)
A medical triad is a group of three signs or symptoms, the result of injury to three organs, which characterise a specific medical condition. The appearance of all three signs conjoined together in another patient, points to that the patient has the same medical condition, or diagnosis.
Symptoms may include shortness of breath, weakness, or altered mental status. Low blood pressure and tachycardia are often seen in shock. Other symptoms depend on the underlying cause. [4] The physiology of obstructive shock is similar to cardiogenic shock. In both types, the heart's output of blood (cardiac output) is decreased.
Cardiac tamponade is accumulation of enough fluid in the pericardial space --- pericardial effusion--- to cause serious obstruction to the inflow of blood to the heart. Signs of cardiac tamponade include distended neck veins, muffled heart sounds when listening with a stethoscope, and low blood pressure (together known as Beck's triad). [2]
This compression, called cardiac tamponade, is often associated with hemopericardium and can be fatal if not diagnosed and treated promptly. [6] Early signs of this compression include right atrial inversion during ventricular systole followed by diastolic compression of the right ventricular outflow tract .
Symptoms usually improve in a few days to weeks but can occasionally last months. [3] Complications can include cardiac tamponade, myocarditis, and constrictive pericarditis. [1] [2] Pericarditis is an uncommon cause of chest pain. [9] About 3 per 10,000 people are affected per year. [2]
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