Does the recipient site influence the hair growth characteristics in hair transplantation?
نویسندگان
چکیده
BACKGROUND Recently hair transplantation has been widely applied not only to correct androgenetic alopecia, but also to correct hair loss on other parts of the body such as the eyebrows and pubic area. It is believed that the transplanted hairs will maintain their integrity and characteristics after transplantation to new nonscalp sites. OBJECTIVE To evaluate whether the transplanted hairs maintain their hair growth characteristics after transplantation to a new anatomic site other than the scalp. METHODS Three study designs were used. Study I: Hair transplantation from the author's occipital scalp to his lower leg was performed and clinical evaluations were made at both 6 months and at 3 years after the transplantation. Study II: After finding changes in hair growth characteristics, transplanted hairs were harvested from the leg and retransplanted to the left side of the nape of the neck (group A). As a control study, occipital hairs were transplanted to the opposite side (group B). Observations were made at 6 months after the operation. Study III: An observational study was done in 12 patients with androgenetic alopecia about 1 year after transplantation of occipital hair to frontal scalp. At each step, survival rates were documented and the rate of growth and the diameter of the shafts were measured for both recipient and donor sites. RESULTS Study I: Surviving hairs on the lower leg showed a lower growth rate (8.2 +/- 0.9 mm/month), but the same diameter (0.086 +/- 0.018 mm) compared with occipital hairs (16.0 +/- 1.1 mm/month, 0.088 +/- 0.016 mm). The survival rate 3 years after transplantation was 60.2%. Study II: There was no significant difference in the growth rate, shaft diameter, and survival rate between retransplanted hairs (group A) and controls (group B). Groups A and B showed a lower growth rate, but the same diameter, compared with occipital hairs. Study III: There was no significant difference in the growth rate and shaft diameter between the transplanted hairs on the frontal scalp and the occipital hairs. CONCLUSION These results strongly suggest that the recipient site affects some characteristics of transplanted hairs, such as their growth and survival rates.
منابع مشابه
Donor hair follicle preservation by partial follicular unit extraction. A method to optimize hair transplantation.
BACKGROUND There are different stem cell pools located in the hair follicle. OBJECTIVE To try to determine whether follicular units can survive a partial extraction and whether this partial extracted follicular unit can regenerate new hairs. METHODS From five individuals, between 100 and 150 grafts were harvested from the occipital area of the scalp. Suitable grafts were implanted into the ...
متن کاملAugmenting Peripheral Nerve Regeneration Using Rat Hair Follicle Stem Cells (rHFSCs) in Rats
Introduction: Nowadays, cell therapy is the most advanced treatment of peripheral nerve injury. The aim of this study was to determine the effects of transplantation of hair follicle stem cells on the regeneration of the sciatic nerve injury in rats. Methods: The bulge region of the rat whisker was isolated and cultured. Morphological and biological features of the cultured bulge cells were ob...
متن کاملEvaluation of the effect of low-level laser irradiation on viability and ROS production in human hair follicle stem cells
Background: Low-level lasers are used for various medical applications including wound healing and hair loss treatment. Cell Therapy using skin stem cells could be a novel approach to hair transplantation. However, there is no study on the effect of low-level laser on the hair follicle stem cells. So, in this study, we investigated the effect of low level laser irradiation on viability and ROS ...
متن کاملEyebrow transplantation: alternative body sites as a donor source.
To the Editor: Aesthetic improvement of eyebrows or their reconstruction after damage caused by trauma or burns is not an uncommon procedure in the field of hair transplantation. The usual hair donor source for such transplantation is the scalp-occipital area. 2, 3 However, this option is not feasible in some instances because the hair is both too coarse and grows excessively long for the inten...
متن کاملRecipient Site Necrosis After Tumescent Infiltration with Adrenaline in Hair Transplantation.
Follicular unit extraction (FUE) is a recent and widely used surgical procedure for hair restoration (1,2). Complications are rarely reported in literature. Herein, we report the first case of recipient site necrosis. We used hyperbaric oxygen therapy (HBOT) as an adjunctive therapy in this patient in order to restrict necrosis area in length and depth and increase wound healing. A 33-year-old ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.]
دوره 28 9 شماره
صفحات -
تاریخ انتشار 2002