What is the step-by-step approach to echocardiographically-guided pericardiocentesis in the diagnosis of acute pericarditis?

Updated: Apr 02, 2019
  • Author: Sean Spangler, MD; Chief Editor: Terrence X O'Brien, MD, MS, FACC  more...
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Answer

Thus, the step-by-step approach for echocardiographically-guided pericardiocentesis is as follows:

  • Assess the size, distribution, and ideal needle entry site and trajectory with a 2.5-MHz to 5-MHz ultrasound transducer placed approximately 3-5 cm from the parasternal border. Locate the point where the effusion is closest to the transducer as well as an area of maximal pericardial fluid accumulation.

  • Assess or measure the distance from the skin to the pericardial space. The needle trajectory is established by the angle of the transducer. Keep this trajectory in mind during the procedure.

  • Use a sterile skin preparation such as povidone-iodine and, if readily available, a transparent sterile plastic sheet (one author recommends a 1030 Baxter drape) to allow imaging and a sterile field.

  • Place a sterile 16-gauge catheter on the predetermined location on the chest wall, avoiding the inferior rib margin. Advance in the predetermined direction, angle, and depth. Advance 2 mm further once fluid is obtained. Consider leaving the catheter in place after removing the needle. If needed, a guidewire can be advanced through the catheter.


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