Effect of Hormones on Hair

Yepuri, Vani; Mysore, Venkataram

doi:10.5005/jp/books/12881_5

Cited by 6 publications

(4 citation statements)

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“…12,13 Occipital scalp has been used as the donor area, the hairs here are naturally androgen resistant and hence thought to be permanent. 14 Hence, it is prudent that the hair absolutely be harvested from the exact permanent zone to achieve long-lasting results.…”

Section: Discussionmentioning

confidence: 99%

Patient-Based Ratio Method for Permanent Zone Donor Area Calculation in Hair Transplant

Punia,

Goel,

Gupta

2024

Indian J Plast Surg

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Introduction Most common type of hair loss is androgenetic alopecia. Orentreich's donor dominance theory and the definition of safe donor area are the theoretical foundation of modern hair transplantation. In safe donor area no progression of permanent hair loss occurs. Its knowledge is important to prevent loss of transplanted hair. Estimation is not tailored to every patient, also in early stages, the margins are assumed to be free from future hair loss. Our study is an attempt to find and establish a relationship between safe zone dimensions and other standard scalp dimensions, and effectively predict the complete safe zone in early stages of hair loss. Materials and Methods From July to December 2022, the first 100 patients with Norwood IV onwards of hair loss were included. Then, the distance between the vertex and the point of change in occipital hair quality and density was measured, and from this point till occipital protuberance were taken. The ratio between the two was taken. In the next 100 patients of Norwood II to IVa, the applicability of the new ratio to assess the permanent zone was used. Results Ratio method takes into account the patient's measurements, that is, permanent zone and total distance from vertex occiput. The ratio range we got is:Permanent zone: total distance from vertex to occiput: 0.43–0.53Therefore, the permanent zone would be equal to = total distance from vertex to occiput × 0.43–0.53. With the lower limit being the occiput. Over 90% of the patients did not have significant reduction in density of transplanted hair. Conclusion The authors suggest the use of this ratio method to determine the dimensions of the permanent zone especially in patients with early grades of hair loss as per the Norwood scale. It is a simple, effective, and easily applicable concept that can ensure long-lasting results in patients undergoing hair transplants.

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Section: Discussionmentioning

confidence: 99%

Patient-Based Ratio Method for Permanent Zone Donor Area Calculation in Hair Transplant

Punia,

Goel,

Gupta

2024

Indian J Plast Surg

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“…Hair follicles located over the occipital region were considered to be androgen-resistant and thought to be permanent and hence these follicles are utilized as the donor in hair transplant surgery for AGA. [ 1 ] SDA was first suggested by Unger et al [ 2 ] in 1994 and this continues to be the global standard. The other SDA definitions are from Alt et al .…”

Section: Discussionmentioning

confidence: 99%

Occipital donor area grading and profile in Indian population

Kumaresan

Deepa

2023

JCAS

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Background: Safe donor area (SDA) in hair transplant surgery had been categorized by various studies. We designed a study to profile the occipital donor area in our population and devise a grading scale the donor area. Aim: To profile and grade the pattern of receding hair over the occipital donor area among men in the age group of 50–55 years with androgenetic alopecia (AGA). Materials and Methods: A total of 681 men with AGA (grade 3 and above Norwood scale, diffuse unpatterned AGA, and retrograde AGA) in the age group between 50 and 55 were included in the study group. Their occipital donor area was analyzed and photographed with the head in the sagittal plane. A team of two dermatologists graded the hair loss and the pattern of the receding hair over the occipital donor area and devised a grading scale and profiled the donor area. Results: Grades 1, 2, and 3 occipital donor area constituting 76.05% of the subjects analyzed, fulfilled the standard SDA criteria and 22.31% of the subjects did not fit well into the standard SDA widely followed. Diffuse thinning and reverse thinning of the occipital donor area was observed among the subjects. Conclusion: There is no clear cut defined SDA. There are lot of individual variations in SDA. SDA selection should be always conservative and over harvesting of the occipital donor region should be avoided.

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“…We did not find scalp redness, which goes in agreement with Garg et al [5] that reported after four weeks, PRP treated group had showed redness of scalp in recipient area whereas only 70% in control group, 3 months later 5% only of PRP treated group had showed scalp redness that resolved completely after 6 month, whereas scalp redness persist in control group. This explained by Ray and Sharma [4] who reported that; platelet application of PRP may induce healing of recipient area by increasing growth of cells and neovascular formation and decreasing apoptosis that lead to improvement of the environment to newly transplanted grafts [12] . Furthermore, it contains significant amounts of PDGF, epidermal growth factor, transforming growth factor, fibroblast growth factor [FGF], and vascular endothelial growth factor [13] .…”

Section: A B C D Ementioning

confidence: 99%

Efficacy and Safety of Platelet Rich Plasma after Hair Transplantation of Male Androgenetic Alopecia: A Pilot Study

Aldor,

Mohamed,

Taha

et al. 2023

International Journal of Medical Arts

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Article informationBackground: Numerous medications are used to treat androgenetic alopecia [AGA] which is a common dermatological disorder that has a negative psychological impact on those who are affected. However, hair transplantation, particularly using Follicular Unit Extraction [FUE], is still the standard surgical treatment for this condition. Aim of the work:This study aims to evaluate the efficacy and safety of Platelet Rich Plasma [PRP] after hair transplantation by Follicular Unit Extraction [FUE] of males' androgenetic alopecia. Patients and Methods:In this prospective study, 15 AGA patients treated with FUE plus PRP injections, Dermoscope was used to confirm the diagnosis and follow up.Results: There is significant increase in follicular hair density and length from baseline to the end of 6 month, no reported scalp redness beyond the first month. Conclusion:PRP after FUE giving faster hair density, reducing the catagen loss of transplanted hair, early recovery of the skin and faster appearance of new anagen hair.

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Effect of Hormones on Hair

Cited by 6 publications

References 0 publications

Patient-Based Ratio Method for Permanent Zone Donor Area Calculation in Hair Transplant

Patient-Based Ratio Method for Permanent Zone Donor Area Calculation in Hair Transplant

Occipital donor area grading and profile in Indian population

Efficacy and Safety of Platelet Rich Plasma after Hair Transplantation of Male Androgenetic Alopecia: A Pilot Study

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