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Related Experiment Videos

Tissue expansion and cutaneous blood flow.

G S Goding1, C W Cummings, R E Trachy

  • 1Department of Otolaryngology, University of Washington, Seattle.

The Laryngoscope
|September 1, 1988
PubMed
Summary

Controlled skin expansion temporarily decreased blood flow in pigs, with blood flow increasing after deflation. However, this blood flow increase was not sustained long-term after tissue expander removal.

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Area of Science:

  • Biomedical Engineering
  • Dermatology
  • Plastic Surgery

Background:

  • Tissue expanders are commonly used in reconstructive surgery.
  • Understanding their impact on local blood flow is crucial for optimizing outcomes.
  • Previous research has yielded mixed results on the hemodynamic effects of tissue expansion.

Purpose of the Study:

  • To investigate the acute and short-term effects of controlled skin expansion on subcutaneous blood flow.
  • To determine the reversibility of blood flow changes after tissue expander deflation.

Main Methods:

  • A dermofluorometer was used to measure blood flow in 28 subcutaneous pockets in seven pigs.
  • Pigs were divided into three groups: gradual inflation/deflation, noninflated expander, and no expander.
  • Blood flow was assessed during partial inflation and at intervals after deflation.

Main Results:

  • Partial inflation of tissue expanders led to a temporary decrease in blood flow.
  • Deflation of tissue expanders resulted in a transient increase in blood flow.
  • This post-deflation blood flow increase was not observed six days after expander removal.

Conclusions:

  • Controlled skin expansion acutely alters subcutaneous blood flow, causing initial reduction followed by a temporary increase upon deflation.
  • The observed increase in blood flow is transient and not sustained after a short period post-deflation.
  • These findings have implications for surgical planning and post-operative care in procedures involving tissue expanders.

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