obstructive shock

Etiology

• pulmonary embolism with acute cor pulmonale
• cardiac tamponade
• tension pneumothorax
• atrial myxoma
• acute valvular stenosis
  • thrombosis of prosthetic valve
  • prosthesis malfunction
• aortic dissection with obliteration of true lumen Pathophysiology
• increased central venous pressure
• decreased left ventricular filling pressure or left ventricular outflow obstruction
• hypotension
• tachycardia
• low cardiac output

Management

• supportive
  • volume expansion
  • vasopressors
• specific treatment of mechanical problems
  • pericardiocentesis
  • chest tube placement
  • thrombolytic therapy
    • massive pulmonary embolus
    • valve thrombosis
  • embolectomy
  • cardiac surgery.

More general terms

• shock