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논문 기본 정보

자료유형
학술저널
저자정보
Choi, Hyun Nam (Department of Plastic and Reconstructive Surgery, Kosin University College of Medicine) Han, Yea Sik (Department of Plastic and Reconstructive Surgery, Kosin University College of Medicine) Kim, Sin Rak (Department of Plastic and Reconstructive Surgery, Kosin University College of Medicine) Kim, Han Kyeol (Department of Plastic and Reconstructive Surgery, Kosin University College of Medicine) Kim, Hyun (Department of Anatomy, Kosin University College of Medicine) Park, Jin Hyung (Department of Plastic and Reconstructive Surgery, Kosin University College of Medicine)
저널정보
대한성형외과학회 Archives of plastic surgery : APS Archives of plastic surgery : APS 제41권 제6호
발행연도
2014.1
수록면
647 - 653 (7page)

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Background Administration of growth factors has been associated with increased viability of composite grafts greater than 1-cm in diameter. Platelet-rich plasma (PRP) contains many of the growth factors studied. In this study, we evaluate the effect of PRP injection on composite graft viability and the proper time for injection. Methods A total of 24 New Zealand White rabbits were divided into four groups. Autologous PRP was injected into the recipient sites three days before grafting in group 1, on the day of grafting in group 2, and three days after grafting in group 3. Group 4 served as control without PRP administration. Auricular composite grafts of 3-cm diameter were harvested and grafted back into place after being rotated 180 degrees. Median graft viability and microvessel density were evaluated at day 21 of graft via macroscopic photographs and immunofluorescent staining, respectively. Results The median graft survival rate was 97.8% in group 1, 69.2% in group 2, 55.7% in group 3, and 40.8% in the control group. The median vessel counts were 34 (per ${\times}200$ HPF) in group 1, 24.5 in group 2, 19.5 in group 3, and 10.5 in the control group. Conclusions This study demonstrates that PRP administration is associated with increased composite graft viability. All experimental groups showed a significantly higher survival rate and microvessel density, compared with the control group. Pre-administration of PRP was followed by the highest graft survival rate and revascularization. PRP treatments are minimally invasive, fast, easily applicable, and inexpensive, and offer a potential clinical pathway to larger composite grafts.

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