The safety of one-per-mil tumescent infiltration into tissue that has survived ischemia
Archives of Plastic Surgery
;
: 108-113, 2019.
Article
in English
| WPRIM
| ID: wpr-762814
ABSTRACT
BACKGROUND:
The aim of this study was to assess the safety of one-per-mil tumescent injections into viable skin flaps that had survived an ischemic insult, in order to assess the potential suitability of one-per-mil tumescent injections in future secondary reconstructive procedures such as flap revision and refinements after replantation.METHODS:
Forty groin flaps harvested from 20 healthy Wistar rats weighing 220 to 270 g were subjected to acute ischemia by clamping the pedicle for 15 minutes. All flaps showing total survival on the 7th postoperative day were randomly divided into group A (one-per-mil tumescent infiltration; n=14), group B (normal saline infiltration; n=13), and group C (control, with no infiltration; n=13) before being re-elevated. Transcutaneous oxygen tension (TcPO₂) was measured before and after infiltration, and changes in TcPO₂ were statistically analyzed using analysis of variance, the paired t-test, and the independent t-test. The viability of flaps was also assessed using the Analyzing Digital Images software at 7 days after the second elevation.RESULTS:
Thirty-nine flaps survived to the final assessment, with the sole exception of a flap from group A that did not survive the first elevation. TcPO₂ readings showed significant decreases (P<0.05) following both one-per-mil tumescent (99.9±5.7 mmHg vs. 37.2±6.3 mmHg) and normal saline (103±8.5 mmHg vs. 48.7±5.9 mmHg) infiltration. Moreover, all groin flaps survived with no signs of tissue necrosis.CONCLUSIONS:
One-per-mil tumescent infiltration into groin flap tissue that had survived ischemia did not result in tissue necrosis, although the flaps experienced a significant decrease of cutaneous oxygenation.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Oxygen
/
Reading
/
Replantation
/
Skin
/
Vasoconstriction
/
Reperfusion Injury
/
Epinephrine
/
Rats, Wistar
/
Constriction
/
Groin
Language:
English
Journal:
Archives of Plastic Surgery
Year:
2019
Type:
Article
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