Effects of oxidative stress and apoptosis on vascularity and viability of perforator flaps

Bali U., Aydemir I., KEÇECİ Y., YOLERİ L., TUĞLU M. İ.

Biotechnic and Histochemistry, cilt.96, sa.7, ss.526-535, 2021 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 96 Sayı: 7
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1080/10520295.2020.1831066
  • Dergi Adı: Biotechnic and Histochemistry
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, EMBASE, Food Science & Technology Abstracts, MEDLINE, Veterinary Science Database
  • Sayfa Sayıları: ss.526-535
  • Anahtar Kelimeler: Apoptosis, neovascularization, oxidative stress, perforator flap, rats
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

We investigated lateral thoracic and posterior thigh perforator flaps for viability, vascularization, perfusion and apoptosis in a rat model. Wistar albino rats were divided into six groups: lateral thoracic artery perforator flap (LTPF) sham, 3 × 2 cm2 LTPF, 3 × 6 cm2 LTPF, posterior thigh perforator flap (PTPF) sham, 3 × 2 cm2 PTPF, and 3 × 6 cm2 PTPF. Flap viability was determined on postoperative days 1 and 7. On day 7, flaps were photographed and their viability was measured using two-dimensional planimeter paper. Tissue samples were harvested for examination by histology and immunohistochemistry. Viability differences were statistically significant. Epithelial thickness, vascularity and number of fibroblasts were reduced in the 3 × 6 cm2 groups. Neovascularization and apoptosis based on molecular tests were not significantly different among groups. Flap size and location are important factors for closure of surgical or traumatic defects. We suggest that for clinical application, wound complications will occur less frequently with perforators that nourish large areas of flaps.