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The main aim of this study is to evaluate the advantages, disadvantages, and aesthetic results of the total lower eyelid reconstruction with paranasal flap. The other reconstruction methods are also revisited.Ten patients, who were operated for the reconstruction of total lower eyelid defects between November, 1999 and April, 2005 in our department were included in this study. The total lower eyelid defects of all patients were reconstructed using paranasal flap for anterior lamella and chondromucosal, chondrocutaneous or mucosal graft for posterior lamella. Follow-up time was ranged between 3-35 months. The advantages, disadvantages and complications were defined and aesthetic results of the patients were also evaluated by using a questionnaire which was filled by patients at third month after reconstruction. All flaps and grafts survived, partial or total necrosis was not encountered but one patient with ectropion had a secondary reconstructive procedure. The aesthetic results of the patients were also satisfactory. The paranasal flap is very reliable and safe method for total lower eyelid reconstruction.

Background: As deep nasolabial folds (NLF) are associated with facial aging, there is an increasing demand for esthetic correction with filler injections. Understanding the anatomy of the angular artery (AA) and facial artery (FA) around the NLF region is essential for ensuring the safety of dermal filler injections into the NLF. The purpose of this study was to provide detailed vascular anatomical information on the course and depth of AA and FA around NLF using Doppler ultrasound on live cases. Methods: FA was observed from the origin level adjacent to the mandible corpus to the end of its terminal branch AA in 168 hemifaces of 84 cases with Doppler ultrasonography. Results:We made a classification of the FA course based on the NLF. The minimum and maximum depths of the FA along its course were measured in 84 cases. The results showed that its course may be highly superficial (2.5 mm at the mandibular origin, 3.7 mm at the cheilion, 3.7 mm at the nasal ala) or it may follow a very deep course near the periosteum (15.0 mm at the mandibular origin, 18.7 mm at the cheilion, 23.5 mm at the nasal ala). FA depth was varied between 5.98 mm and 6.62 mm at the mandibular origin, between 8.36 mm and 9.20 mm at the cheilion, between 9.52 mm and 10.51 mm at the nasal ala at a 95% confidence interval.Conclusions: This study suggests that there is no absolutely safe depth or region for nasolabial fold filler injections.

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Mesenchymal stem cells became localized in damaged lung tissue, and recovery approximated the room air control.