Triangle of safety

Dr Craig Hacking et al.

The triangle of safety is an anatomical region in the axilla that forms a guide as to the safe position for intercostal catheter (ICC) placement. With the arm abducted, the apex is the axilla, and the triangle is formed by the:

There have been cases reported of complications from ICC placement even when using these landmarks, with authors advising the supplementary use of ultrasound visualisation 1.

As with all intercostal approaches, placing the catheter closer to the superior border of the rib below in the intercostal space should avoid injury to the intercostal neurovascular bundle under the costal groove of the rib above.

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Article information

rID: 45249
System: Chest
Sections: Anatomy, Approach
Synonyms or Alternate Spellings:
  • Safe triangle
  • Safety triangle for ICC
  • Safe triangle for ICC

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