The bowed catheter sign: a risk for pericardial tamponade

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Richard Towbin1

  • 1Department of Radiology, Phoenix Children's Hospital, 1919 E. Thomas Road, Phoenix, AZ 85016, USA. rtowbin@phoenixchildrens.com

Pediatric Radiology
|November 22, 2007
PubMed

Insights

A bowed central venous catheter (CVC) may indicate risk for cardiac perforation. This case report highlights the bowed catheter sign and cavotricuspid isthmus anatomy as potential factors in cardiac tamponade.

Area of Science:

  • Pediatric critical care medicine
  • Cardiovascular interventions
  • Medical device safety

Background:

  • Central venous catheters (CVCs) are essential in pediatric care for various medical and surgical conditions.
  • CVC insertion carries risks, including life-threatening complications.
  • Proper CVC placement and fixation are crucial to prevent complications.

Observation:

  • Improperly secured or excessively long CVCs can exert pressure on the right atrial wall.
  • Tapered catheter tips may increase the likelihood of cardiac wall penetration.
  • The 'bowed catheter sign' is identified as a potential indicator of malposition.

Findings:

  • The case report introduces the 'bowed catheter sign' as a diagnostic clue.
  • Anatomical review highlights the cavotricuspid isthmus as a potential predisposing factor for cardiac perforation.
  • This sign may precede cardiac tamponade, a severe complication.

Implications:

  • Recognizing the bowed catheter sign can aid in early detection of CVC malposition.
  • Understanding the role of the cavotricuspid isthmus may improve CVC placement strategies.
  • Prompt identification and intervention can mitigate the risk of cardiac perforation and tamponade in pediatric patients.

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