Memory T-cells promote allograft rejection particularly in costimulation blockade (CoB)-based immunosuppressive regimens. Here we show that the CD2-specific fusion protein alefacept (LFA3-Ig) selectively eliminates memory T-cells and when combined with a CoB-based regimen utilizing CTLA4-Ig, prevents renal allograft rejection and alloantibody formation in primates. These results support the development of an immediately translatable regimen for the prevention of allograft rejection without the use of calcineurin inhibitors, steroids, or pan-T-cell depletion.
Background
Rebound bleeding as a result of loss of epinephrine effect is a common problem encountered during facelift surgery. Tranexamic acid (TXA) is an anti-fibrinolytic agent whose safety and efficacy in reducing bleeding are well documented. We have found that local infiltration of TXA combined with a lidocaine with epinephrine solution during facelift surgery has been effective in decreasing rebound bleeding and the time required to gain hemostasis.
Objectives
The authors sought to share their local infiltration protocol of TXA combined with epinephrine solution in facelift.
Methods
Patients who underwent facelift received subcutaneous injection of TXA-lidocaine 0.5% solution following the authors’ protocol. After completing both sides of the facelift and the submental platysmaplasty, the first and second sides were sequentially closed. The time to gain hemostasis on each side prior to closure was prospectively measured.
Results
Twenty-seven consecutive patients who underwent facelift surgery received local infiltration of TXA-lidocaine solution. In 23 of the 27 patients, the time required for hemostasis was prospectively recorded. The mean age was 62.1 years (±9.3) and all were females. The average time spent achieving hemostasis on the right, left, and both sides of the face was 6.5 (±2.7), 6.3 (±2.1), and 12.9 (±4.2) minutes, respectively. The total surgical time saving is approximately 25 to 60 minutes. Although primary facelift [13.6 (± 4.3)] exhibited a longer time of hemostasis compared with the secondary group [10.2 (± 2.8)], this was not statistically significant (P = 0.09).
Conclusions
Local infiltration of TXA with local anesthetic prior to a facelift appears to decrease bleeding, operative time, and postoperative facelift drainage output.
Level of Evidence: 4
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