Harvested vs estimated follicular units in hair transplantation
Background The follicular unit transplantation strip harvesting surgery is one of the gold standard methods of hair transplantation; the counting follicular unit ratio and hair density is a major step in donor site evaluation. Aims We conducted the study for analyzing the preoperative donor site eva...
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| Veröffentlicht in: | Journal of cosmetic dermatology 2019-06, Vol.18 (3), p.902-907 |
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| container_title | Journal of cosmetic dermatology |
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| creator | Huang, Yau‐Li Lee, Mei‐Ching Chang, Shyue‐Luen Hu, Sindy Chang, Chun‐Shin Lin, Ying‐Fang Cheng, Chun‐Yu |
| description | Background
The follicular unit transplantation strip harvesting surgery is one of the gold standard methods of hair transplantation; the counting follicular unit ratio and hair density is a major step in donor site evaluation.
Aims
We conducted the study for analyzing the preoperative donor site evaluation and comparison of the actual harvested and estimated follicular units in hair transplantation.
Patients/Methods
In this retrospective study, we enrolled 65 male patients with androgenetic alopecia who underwent follicular unit transplantation. Before the donor strip harvesting procedure, we counted the follicular unit density and calculated the percentage of each follicular unit. And then, we compared them to actual harvesting grafts.
Result
The number of actual harvested transplanted hairs (3162.22 ± 958.30) were less than estimated transplanted hairs (3319.25 ± 1007.86). Both the number and percentage of actual harvested 1‐hair follicular unit were more than estimated 1‐hair follicular unit. In contrast, the number and percentage of actual harvested 3‐hair follicular unit was less than estimated 3‐hair follicular unit. The follicular unit density was lower in older patients. Those received more than one session of hair transplantation tended to have lower follicular and hair density (P = 0.007 and 0.01, respectively). The scalp laxity was lower in older patients and those received multiple sessions of hair transplantation.
Conclusion
The actual harvested grafts yield more 1‐hair follicular units and less 3‐hair follicular units than estimation. Old age and multiple sessions of hair transplantation caused more limitation of harvesting donor scalp. |
| doi_str_mv | 10.1111/jocd.12740 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_2084914338</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2084914338</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3290-e6a9c19f66af5fea4e3f3b930b8da5cd9ef1ed6733e96b54c86054c027bc49d43</originalsourceid><addsrcrecordid>eNp9kEtLAzEUhYMotlY3_gCZpQhT85rMZCVSH1UK3eg6ZPLAlHSmJjOV_ntTp7r0Lu4DPg7nHgAuEZyiVLerVukpwiWFR2CMaElyjFhx_LcTOAJnMa4gRCVHxSkYEQgrijEZg7u5DFsTO6OzbczS4tZyf9jWe6d6L0PWN66LmWuyD-lC1gXZxI2XTSc71zbn4MRKH83FYU7A-9Pj22yeL5bPL7P7Ra4I5jA3THKFuGVM2sIaSQ2xpOYE1pWWhdLcWGQ0KwkxnNUFVRWDqUNc1opyTckEXA-6m9B-9smnWLuojE9GTNtHgdNDHFFCqoTeDKgKbYzBWLEJ6auwEwiKfWBiH5j4CSzBVwfdvl4b_Yf-JpQANABfzpvdP1LidTl7GES_AWCEdkU</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2084914338</pqid></control><display><type>article</type><title>Harvested vs estimated follicular units in hair transplantation</title><source>MEDLINE</source><source>Wiley Online Library Journals Frontfile Complete</source><creator>Huang, Yau‐Li ; Lee, Mei‐Ching ; Chang, Shyue‐Luen ; Hu, Sindy ; Chang, Chun‐Shin ; Lin, Ying‐Fang ; Cheng, Chun‐Yu</creator><creatorcontrib>Huang, Yau‐Li ; Lee, Mei‐Ching ; Chang, Shyue‐Luen ; Hu, Sindy ; Chang, Chun‐Shin ; Lin, Ying‐Fang ; Cheng, Chun‐Yu</creatorcontrib><description>Background
The follicular unit transplantation strip harvesting surgery is one of the gold standard methods of hair transplantation; the counting follicular unit ratio and hair density is a major step in donor site evaluation.
Aims
We conducted the study for analyzing the preoperative donor site evaluation and comparison of the actual harvested and estimated follicular units in hair transplantation.
Patients/Methods
In this retrospective study, we enrolled 65 male patients with androgenetic alopecia who underwent follicular unit transplantation. Before the donor strip harvesting procedure, we counted the follicular unit density and calculated the percentage of each follicular unit. And then, we compared them to actual harvesting grafts.
Result
The number of actual harvested transplanted hairs (3162.22 ± 958.30) were less than estimated transplanted hairs (3319.25 ± 1007.86). Both the number and percentage of actual harvested 1‐hair follicular unit were more than estimated 1‐hair follicular unit. In contrast, the number and percentage of actual harvested 3‐hair follicular unit was less than estimated 3‐hair follicular unit. The follicular unit density was lower in older patients. Those received more than one session of hair transplantation tended to have lower follicular and hair density (P = 0.007 and 0.01, respectively). The scalp laxity was lower in older patients and those received multiple sessions of hair transplantation.
Conclusion
The actual harvested grafts yield more 1‐hair follicular units and less 3‐hair follicular units than estimation. Old age and multiple sessions of hair transplantation caused more limitation of harvesting donor scalp.</description><identifier>ISSN: 1473-2130</identifier><identifier>EISSN: 1473-2165</identifier><identifier>DOI: 10.1111/jocd.12740</identifier><identifier>PMID: 30084223</identifier><language>eng</language><publisher>England</publisher><subject>Adult ; Age Factors ; Alopecia - surgery ; androgenetic alopecia ; follicular unit ; Hair Follicle - transplantation ; hair transplant ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Scalp ; Skin Transplantation - methods ; Tissue and Organ Harvesting - methods ; Transplantation, Autologous - methods</subject><ispartof>Journal of cosmetic dermatology, 2019-06, Vol.18 (3), p.902-907</ispartof><rights>2018 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3290-e6a9c19f66af5fea4e3f3b930b8da5cd9ef1ed6733e96b54c86054c027bc49d43</citedby><cites>FETCH-LOGICAL-c3290-e6a9c19f66af5fea4e3f3b930b8da5cd9ef1ed6733e96b54c86054c027bc49d43</cites><orcidid>0000-0002-3746-9561</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fjocd.12740$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fjocd.12740$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30084223$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Huang, Yau‐Li</creatorcontrib><creatorcontrib>Lee, Mei‐Ching</creatorcontrib><creatorcontrib>Chang, Shyue‐Luen</creatorcontrib><creatorcontrib>Hu, Sindy</creatorcontrib><creatorcontrib>Chang, Chun‐Shin</creatorcontrib><creatorcontrib>Lin, Ying‐Fang</creatorcontrib><creatorcontrib>Cheng, Chun‐Yu</creatorcontrib><title>Harvested vs estimated follicular units in hair transplantation</title><title>Journal of cosmetic dermatology</title><addtitle>J Cosmet Dermatol</addtitle><description>Background
The follicular unit transplantation strip harvesting surgery is one of the gold standard methods of hair transplantation; the counting follicular unit ratio and hair density is a major step in donor site evaluation.
Aims
We conducted the study for analyzing the preoperative donor site evaluation and comparison of the actual harvested and estimated follicular units in hair transplantation.
Patients/Methods
In this retrospective study, we enrolled 65 male patients with androgenetic alopecia who underwent follicular unit transplantation. Before the donor strip harvesting procedure, we counted the follicular unit density and calculated the percentage of each follicular unit. And then, we compared them to actual harvesting grafts.
Result
The number of actual harvested transplanted hairs (3162.22 ± 958.30) were less than estimated transplanted hairs (3319.25 ± 1007.86). Both the number and percentage of actual harvested 1‐hair follicular unit were more than estimated 1‐hair follicular unit. In contrast, the number and percentage of actual harvested 3‐hair follicular unit was less than estimated 3‐hair follicular unit. The follicular unit density was lower in older patients. Those received more than one session of hair transplantation tended to have lower follicular and hair density (P = 0.007 and 0.01, respectively). The scalp laxity was lower in older patients and those received multiple sessions of hair transplantation.
Conclusion
The actual harvested grafts yield more 1‐hair follicular units and less 3‐hair follicular units than estimation. Old age and multiple sessions of hair transplantation caused more limitation of harvesting donor scalp.</description><subject>Adult</subject><subject>Age Factors</subject><subject>Alopecia - surgery</subject><subject>androgenetic alopecia</subject><subject>follicular unit</subject><subject>Hair Follicle - transplantation</subject><subject>hair transplant</subject><subject>Humans</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Retrospective Studies</subject><subject>Scalp</subject><subject>Skin Transplantation - methods</subject><subject>Tissue and Organ Harvesting - methods</subject><subject>Transplantation, Autologous - methods</subject><issn>1473-2130</issn><issn>1473-2165</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kEtLAzEUhYMotlY3_gCZpQhT85rMZCVSH1UK3eg6ZPLAlHSmJjOV_ntTp7r0Lu4DPg7nHgAuEZyiVLerVukpwiWFR2CMaElyjFhx_LcTOAJnMa4gRCVHxSkYEQgrijEZg7u5DFsTO6OzbczS4tZyf9jWe6d6L0PWN66LmWuyD-lC1gXZxI2XTSc71zbn4MRKH83FYU7A-9Pj22yeL5bPL7P7Ra4I5jA3THKFuGVM2sIaSQ2xpOYE1pWWhdLcWGQ0KwkxnNUFVRWDqUNc1opyTckEXA-6m9B-9smnWLuojE9GTNtHgdNDHFFCqoTeDKgKbYzBWLEJ6auwEwiKfWBiH5j4CSzBVwfdvl4b_Yf-JpQANABfzpvdP1LidTl7GES_AWCEdkU</recordid><startdate>201906</startdate><enddate>201906</enddate><creator>Huang, Yau‐Li</creator><creator>Lee, Mei‐Ching</creator><creator>Chang, Shyue‐Luen</creator><creator>Hu, Sindy</creator><creator>Chang, Chun‐Shin</creator><creator>Lin, Ying‐Fang</creator><creator>Cheng, Chun‐Yu</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-3746-9561</orcidid></search><sort><creationdate>201906</creationdate><title>Harvested vs estimated follicular units in hair transplantation</title><author>Huang, Yau‐Li ; Lee, Mei‐Ching ; Chang, Shyue‐Luen ; Hu, Sindy ; Chang, Chun‐Shin ; Lin, Ying‐Fang ; Cheng, Chun‐Yu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3290-e6a9c19f66af5fea4e3f3b930b8da5cd9ef1ed6733e96b54c86054c027bc49d43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Adult</topic><topic>Age Factors</topic><topic>Alopecia - surgery</topic><topic>androgenetic alopecia</topic><topic>follicular unit</topic><topic>Hair Follicle - transplantation</topic><topic>hair transplant</topic><topic>Humans</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Retrospective Studies</topic><topic>Scalp</topic><topic>Skin Transplantation - methods</topic><topic>Tissue and Organ Harvesting - methods</topic><topic>Transplantation, Autologous - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huang, Yau‐Li</creatorcontrib><creatorcontrib>Lee, Mei‐Ching</creatorcontrib><creatorcontrib>Chang, Shyue‐Luen</creatorcontrib><creatorcontrib>Hu, Sindy</creatorcontrib><creatorcontrib>Chang, Chun‐Shin</creatorcontrib><creatorcontrib>Lin, Ying‐Fang</creatorcontrib><creatorcontrib>Cheng, Chun‐Yu</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of cosmetic dermatology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Huang, Yau‐Li</au><au>Lee, Mei‐Ching</au><au>Chang, Shyue‐Luen</au><au>Hu, Sindy</au><au>Chang, Chun‐Shin</au><au>Lin, Ying‐Fang</au><au>Cheng, Chun‐Yu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Harvested vs estimated follicular units in hair transplantation</atitle><jtitle>Journal of cosmetic dermatology</jtitle><addtitle>J Cosmet Dermatol</addtitle><date>2019-06</date><risdate>2019</risdate><volume>18</volume><issue>3</issue><spage>902</spage><epage>907</epage><pages>902-907</pages><issn>1473-2130</issn><eissn>1473-2165</eissn><abstract>Background
The follicular unit transplantation strip harvesting surgery is one of the gold standard methods of hair transplantation; the counting follicular unit ratio and hair density is a major step in donor site evaluation.
Aims
We conducted the study for analyzing the preoperative donor site evaluation and comparison of the actual harvested and estimated follicular units in hair transplantation.
Patients/Methods
In this retrospective study, we enrolled 65 male patients with androgenetic alopecia who underwent follicular unit transplantation. Before the donor strip harvesting procedure, we counted the follicular unit density and calculated the percentage of each follicular unit. And then, we compared them to actual harvesting grafts.
Result
The number of actual harvested transplanted hairs (3162.22 ± 958.30) were less than estimated transplanted hairs (3319.25 ± 1007.86). Both the number and percentage of actual harvested 1‐hair follicular unit were more than estimated 1‐hair follicular unit. In contrast, the number and percentage of actual harvested 3‐hair follicular unit was less than estimated 3‐hair follicular unit. The follicular unit density was lower in older patients. Those received more than one session of hair transplantation tended to have lower follicular and hair density (P = 0.007 and 0.01, respectively). The scalp laxity was lower in older patients and those received multiple sessions of hair transplantation.
Conclusion
The actual harvested grafts yield more 1‐hair follicular units and less 3‐hair follicular units than estimation. Old age and multiple sessions of hair transplantation caused more limitation of harvesting donor scalp.</abstract><cop>England</cop><pmid>30084223</pmid><doi>10.1111/jocd.12740</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-3746-9561</orcidid></addata></record> |
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| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Adult Age Factors Alopecia - surgery androgenetic alopecia follicular unit Hair Follicle - transplantation hair transplant Humans Male Middle Aged Retrospective Studies Scalp Skin Transplantation - methods Tissue and Organ Harvesting - methods Transplantation, Autologous - methods |
| title | Harvested vs estimated follicular units in hair transplantation |
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