PMID- 21764073 OWN - NLM STAT- MEDLINE DCOM- 20111013 LR - 20131121 IS - 1095-8673 (Electronic) IS - 0022-4804 (Linking) VI - 170 IP - 1 DP - 2011 Sep TI - PRP&F/P MPs improved survival of dorsal paired pedicle skin flaps in rats. PG - e189-96 LID - 10.1016/j.jss.2011.05.051 [doi] AB - BACKGROUND: Skin flap necrosis is a problem encountered postoperatively. The purpose of this study was to evaluate the effects of platelet-rich plasma containing fragmin/protamine microparticles (PRP&F/P MPs) on viability in a rat dorsal paired pedicle skin (DPPS) flap. MATERIALS AND METHODS: Two symmetrical adjoining rectangular flaps (8 x 2 cm each) were drawn on the rat dorsum. Two days after PRP&F/P MPs-, PRP-, F/P MPs-, and saline (control)-injections (n = 8 each), flaps were elevated as a random pattern flap without the lateral thoracic, posterior intercostal, and deep circumflex iliac vessels. The flaps were immediately sutured back and the flap survival area was measured 7 d after flap elevation. RESULTS: The flap survival rate in PRP&F/P MPs-injected groups (73.1% +/- 4.2%) was significantly higher than those in PRP (64.9% +/- 4.0%), F/P MPs (59.4 +/- 4.5%), and control (61.2% +/- 4.2%) groups. Histologic observation of the flaps showed survived thick granulation tissue and neovascularization in PRP&F/P MPs-injected groups. CONCLUSIONS: When PRP&F/P MPs are administered 2 d before the flap elevation, the improved flap survivals are observed. The pre-injection of PRP&F/P MPs may thus represent a promising treatment to prevent skin flap necrosis in reconstructive surgery. CI - Copyright (c) 2011 Elsevier Inc. All rights reserved. FAU - Takikawa, Megumi AU - Takikawa M AD - Department of Plastic and Reconstructive Surgery, National Defense Medical College, Saitama, Japan. FAU - Sumi, Yuki AU - Sumi Y FAU - Ishihara, Masayuki AU - Ishihara M FAU - Kishimoto, Satoko AU - Kishimoto S FAU - Nakamura, Shingo AU - Nakamura S FAU - Yanagibayashi, Satoshi AU - Yanagibayashi S FAU - Hattori, Hidemi AU - Hattori H FAU - Azuma, Ryuichi AU - Azuma R FAU - Yamamoto, Naoto AU - Yamamoto N FAU - Kiyosawa, Tomoharu AU - Kiyosawa T LA - eng PT - Journal Article DEP - 20110623 PL - United States TA - J Surg Res JT - The Journal of surgical research JID - 0376340 RN - 0 (Protamines) RN - 0 (Vascular Endothelial Growth Factor A) RN - S79O08V79F (Dalteparin) SB - IM MH - Animals MH - Dalteparin/*pharmacology MH - Male MH - *Platelet-Rich Plasma MH - Protamines/*pharmacology MH - Rats MH - Rats, Inbred F344 MH - Skin/pathology MH - Surgical Flaps/*physiology MH - Vascular Endothelial Growth Factor A/analysis EDAT- 2011/07/19 06:00 MHDA- 2011/10/14 06:00 CRDT- 2011/07/19 06:00 PHST- 2011/03/31 00:00 [received] PHST- 2011/05/16 00:00 [revised] PHST- 2011/05/25 00:00 [accepted] PHST- 2011/07/19 06:00 [entrez] PHST- 2011/07/19 06:00 [pubmed] PHST- 2011/10/14 06:00 [medline] AID - S0022-4804(11)00509-9 [pii] AID - 10.1016/j.jss.2011.05.051 [doi] PST - ppublish SO - J Surg Res. 2011 Sep;170(1):e189-96. doi: 10.1016/j.jss.2011.05.051. Epub 2011 Jun 23.