Primary healing

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As primary healing (lat. Sanatio by first intention = pp) is an uncomplicated wound healing without infection called.

Primary healing is mostly observed in areas with good blood circulation, with smooth-edged, slightly or not at all contaminated wounds without loss of substance, in which the wound edges are smooth and close together, e.g. B. in wounds surgically placed under asepsis or clean occasional wounds (e.g. with a knife). Granulation , contraction, and epithelialization are the three components that contribute to primary healing. In contrast, there is epithelial wound healing of superficial wounds, a regenerative process that occurs solely through epithelialization and does not leave any scars.

The end result of primary healing is a narrow, line-shaped scar that initially turns red, and after vascular regression finally turns white. Complex remodeling processes mean that a scar takes months, sometimes years, to achieve its final shape.

This result is recorded under pp in wound statistics . The antonym ps stands for secondary healing . Under comparable conditions, the same type of patient population and the same operation, the relative number of primarily healed wounds is a positive indicator of the quality of surgical operations .

Individual evidence

  1. Hans Lippert (ed.): Wundatlas Compendium of Complex Wound Treatment , Georg Thieme Verlag, Stuttgart, 2006, ISBN 3-13-140832-4 , page 31.
  2. Joachim Dissemond: "Blickdiagnose Chronic Wounds" , Viavital Verlag GmbH, Cologne 2009, ISBN 978-3-934371-43-9 , page 10.