Domeniul refacerii parului este o specialitate dinamica unde tehnologiile avansate permit chirurgilor sa obtina rezultate mai placute estetic. Pierderea parului pare sa dea batai de cap umanitatii inca de la evidentele inceputurilor istoriei in baza unei prescricptii medicale pentru refacerea parului care a fost inclusa in anul 1500 I.H. in Ebers papyrus of ancient Egypt.
Succesul transplantului de par modern depinde de fenomenul descris prima data de catre Orentreich in 1957, numit ”dominanta donatoare”. Parul preluat din fasiile cu permanenta creare a parului ale pacientilor cu alopecia androgenetica (zona donatoare) si transferate catre zonele scalpului care nu mai dau nastere firelor de par (zona destinatara), va continua sa creasca in noua zona atat timp cat zona de unde au fost recoltate va avea par.
Baromia transplanteaza zone paroase la animale;
J. Dieffenbach realizeaza auto-transplant de par in piele;
Okuda realizeaza insertii de grafturi pentru refacerea alopeciei;
Tamura implanteaza grafturi singulare prin injectare pentru refacerea pielii deasupra muntelui Venus la femei;
Limmer foloseste microscopul pentru crearea de 1-5 mici grafturi pentru a le insera in intepatura acului in piele
Uebel realizeaza extragerea unei zone donatoare liniare;
Unger limiteaza zona donatoare de recoltare prin delimitarea zonei de siguranta a zonei donatoare;
Woods recolteaza unitati foliculare singulare utilizand intepaturi circulare mai mici (1mm) cu o aparitie estetica acceptabila si o rata scazuta a sectiunii transversale;
Bernstein si Rassman descriu tehnica lor de transplant a unitatilor foliculare, publicand termenul ”unitate foliculara” in nomenclatura;
Rassman si Bernstein descriu tehnica FUT ca o tehnica chirurgicala in literatura medicala.
Parul variaza intre diferite grupari etnice si indivizi singulari. Acesta are doua structuri distincte: foliculul din piele si firul de par, care este vizibil la suprafata corpului. Sunt diferite tipuri de par.
Majoritatea firelor de par ”rasar” din scalp ca o grupare cu 4 fire de par. Gruparile sunt portiunile superficial vizibile a unitatilor foliculare (FU). Unitatile foliculare consta, in general, in 1 sau 4 foliculi de par si un folicul vellus.
Directia parului difera in functie de zona scalpului. Atat directia cat si unghiul inciziei trebuie sa fie deci individualizat in functie de zona scalpului.
Foliculul de par este un organ dinamic. Activitatea ciclica necesita regeneare si o noua asamblare a portiunii nepermanenta a foliculului de par in timpul fiecarui ciclu. In medie, valoarea de noi formatiuni de par se potriveste cu totalul de par cazut, mentinand astfel o acoperire consistenta.
Exista trei faze principale ale ciclului folicului de par: cresterea activa (anageneza); regresiva (catageneza) si pasiva (telogeneza). Fiecare faza in parte depinde in functie de tipul foliculului de par si de locatia geografica. Recent, cele doua stagii ale ciclului de par au fost descrise ca: eliberarea (exogen) si timpul de intarziere (kenogen).
Bolile care cauzeaza pierderea parului sunt clasificate in functie tipul de pierdere al parului, daca este difuz sau localizat si daca foliculul ramane intact sau este distrus si inlocuit de o cicatrice. Potentialii factori declansatori sunt atribuiti inflamatiilor, geneticii, mediului si hormonilor.
Tulburarile pierderilor de par au trei mecanisme esentiale care includ densitatea foliculilor, marimea foliculilor de par si durata ciclului cresterii parului.
Paradoxal, androgenii au efecte diferite asupra foliculilor de par umani in functie de suprafata corpului. Testosteronul este androgenul majoritar circulant la barbati. Testosteronul redus la dihidrotestosteron (DHT) de catre o enzima 5a-reductanta. DHT se leaga de receptorul androgen. In zona de calvitie a scalpului, enzima 5a-reductanta este in crestere, rezultand cresterea prudctiei de DHT.
AGA este cea mai comuna cauza a pierderii parului. Afecteaza pana la 70% din populatia masculina la mijlocul varstei adulte. MPHL se intampla in prezenta androgenilor la personale sensibile genetic. Nivelul crescut recent de prostaglandina D2 in foliculii de par este sugerat ca fiind o cauza majora a AGA.
Cheia carcateristica in MPJL este miniaturizarea foliculara. Durata fazei cresterii active se reduce de la 2-6 ani la cateva luni, in timp ce faza de repaus se prelungeste relativ. Noua generatie de par devine mai scurta, mai fina si mai deschisa la culoare si ascunde scalpul mai putin. Tranzitia poate fi graduala sau poate veni in valuri si bineinteles amploarea MPHL este imprevizibila.
Modelul masculin incepe, in general cu o recesiune bitemporala, urmata de calvitia vertexului si pierderea parului in mijlocul frontal, permitand terminalulului foliculului de par sa fie retinut in zona occipitala a scalpului. Sistemul cel mai frecvent utilizat pentru gradarea MPHL este Scala Hamilton-Norwood.
In compliance with the obligations derived from the European GDPR (European Regulation for the protection of personal data No. 679/2016), this site respects and protects the privacy of visitors and users while making an extreme effort to put in place everything possible in order to avoid damaging the rights of its Users.
This site does not publish advertisements, does not use data for the purpose of sending advertising, but makes use of third-party services in order to improve the use of the site. These third parties may collect user data and then use it to send announcements custom advertising on other sites. However, this site implements every possible effort to protect the privacy of Users and to minimize the collection of personal data. For example, the site uses YouTube videos in some cases, which are set so as not to send cookies (and therefore do not collect data) until the user starts the video. The site also uses social plugins to simplify the sharing of articles on social networks. These plugins are configured to send cookies (and therefore eventually collect data) only after the user has clicked on the plugin.
For more information, please read the information below.
This site processes data primarily based on user consent. The consent is given by the completion of the Consultation Booking Form and Questionnaire within the site used for the specific purpose of rendering a service. With the use of this form, site visitors and Users approve this privacy statement and give consent to the processing of their personal data in relation to the methods and purposes described below. Denying consent by not completing the form may make it impossible to provide certain services.
Legal Basis for the Processing of Information
The processing of data collected by the site, in addition to the purposes stated, are deemed necessary for the provision of the service and is for the following purposes:
Statistical (Analysis) The collection of data and information, in this instance, is an exclusively aggregate and anonymous form in order to verify the correct functioning of the site. None of this information is related to the physical person-user of the site, and identification is not allowed in any way. Consent is not necessary.
Security Collection of data and information in order to protect the security of the site (spam filters, firewall, virus detection) and Users and to prevent or unmask fraud or abuse to the detriment of the website. The data is recorded automatically and may also include personal data (IP addresses) that could be used, in accordance with applicable laws, in order to block attempts to damage the site itself or to harm other users, or otherwise harmful activities or constituting crime. This data is never used for the identification or profiling of the User and are periodically deleted. Consent is not necessary.
Auxiliary Activities Communicate the data to third parties who perform functions necessary or instrumental to the operation of the service (e.g. forms, comment boxes), and to allow third parties to perform technical, logistical and other activities on our behalf. Providers only have access to the personal data that is necessary to perform their duties. They undertake not to use the data for other purposes, and are required to process personal data in accordance with applicable regulations.
Collected data - Information Collected This site collects user data in two ways:
1) Data Collected in an Automated Manner While browsing, the following information can be collected from Users that is stored in the server's (hosting) site log files:
Internet Protocol (IP) address Type of browser Parameters of the device used to connect to the site Name of the Internet service provider (ISP); Date and time of visit Web page of origin of the visitor (referral) and exit Number of clicks.
The data used for statistical and analytical purposes is only in aggregate form. The IP address is used exclusively for security purposes and is not crossed with any other data.
2) Data Provided Voluntarily This site may collect other data such as in the case of voluntary use of services by Users for communication purposes (Consultation Forms, Contact Forms, Questionnaire), and will be used exclusively for the provision of the requested service.
First name, surname Email address Profession Town/City of Residence Medical Questionnaire Related to Hair Transplant Surgery
Location of Data Retention and Treatment
The data collected by the site is processed at the datacenter Hetzner Cloud computing company that is responsible for data processing and the processing of data on behalf of the holder. It is located in the European economic area and acts in accordance with European standards.
Data Retention Period
The data collected by the site during its operation is kept for the time strictly necessary to carry out the activities specified. On the expiry date, the data will be deleted or made anonymous, unless there are further purposes for the storage of the same.
The data (IP address) used for the purposes of site security (block attempts to damage the site) are stored for 90 of days.
Transferring the Collected Data to Third Parties The data collected by the site are generally not provided to third parties, except in specific cases: legitimate request by the judicial authorities and only in the cases provided by law; if it is necessary for the provision of a specific service requested by the User; for the execution of security checks or site optimization.
Data transfer in non-EU countries
This site may share some of the data collected with services located outside the European Union area. In particular with Google, Facebook and Microsoft (LinkedIn) through social plugins and the Google Analytics service. The transfer is authorized on the basis of specific decisions of the European Union and the Guarantor for the protection of personal data. The companies mentioned above guarantee their adherence to the Privacy Shield.
This site uses the following cookie categories:
Analysis Cookies – This is used directly by the site operator to collect information on the number of users and how they visit the site. This is done in aggregate form. They are similar to technical cookies if the service is made anonymous.
Profiling and Marketing Cookies – This is used exclusively by third parties other than the owner of this site to collect information on the behavior of users during navigation, and on interests and consumption habits, also in order to provide personalized advertising.
Choices and Obligations
THE DISABILITY OF COOKIES COULD PREVENT THE CORRECT USE OF SOME FUNCTIONS OF THE SAME SITE, in particular the services provided by third parties may not be accessible, and therefore may not be viewable:
YouTube videos or other video sharing services Google Maps
Instructions for disabling cookies can be found on the following web pages:
Mozilla Firefox - Microsoft Internet Explorer - Microsoft Edge - Google Chrome - Opera - Apple Safari
Third Party Cookies
Google Analytics – It is used to analyze the use of the site by users, compile reports on site activity and user behavior, check how often users visit the site, how the site is tracked and which pages are visited most frequently. The information is combined with information collected from other sites in order to create a comparative picture of the use of the site compared to other sites of the same category.
Data collected: browser identification, date and time of interaction with the site, page of origin, IP address. Place of data processing: European Union
The data collected does not allow personal identification of users, and is not intersected with other information relating to the same person. It is treated in an aggregate form (truncated to the last octet). Under a specific agreement, Google Inc. is prohibited from crossing this data with those obtained from other services.
Further information on Google Analytics cookies can be found on the Google Analytics Cookie Usage on Websites page.
The user can selectively opt-out the collection of data by Google Analytics by installing the appropriate component provided by Google on his browser (opt out).
Youtube - Platform, owned by Google, for video sharing. Cookies are set when accessing the embed page, and when the video starts, and do not allow the identification of the User unless it is already logged into the Google profile. For videos on the site, the "advanced privacy (no cookie)" option has been activated, which prevents YouTube from storing visitor information unless they voluntarily reproduce the video.
Data collected - Number and behavior of service users, IP address, information linking site visits to the Google Account for users already logged in, preferences on displaying videos.
Place of data processing: USA.Close