domingo, 7 de septiembre de 2014

Adding PRP to facial lipofilling reduces recovery time and improves the overall aesthetic outcome of a MACS-lift.

The Effects of Platelet-Rich Plasma on Recovery Time and Aesthetic Outcome in Facial Rejuvenation: Preliminary Retrospective Observations.

Willemsen JC1van der Lei BVermeulen KMStevens HP.Author information
  • 1Department of Plastic Surgery, University Medical Center Groningen, Groningen, The Netherlands, j.c.n.willemsen@umcg.nl.
Abstract
BACKGROUND:
This study focused on the possible effect of platelet-rich plasma (PRP) on recovery time and aesthetic outcome after facial rejuvenation. We conducted a retrospective analysis with regard to recovery time and the aesthetic improvement after treatment among four groups of patients: those treated with fat grafting only (Group I), those treated with fat grafting and PRP (Group II), those treated with a minimal access cranial suspension (MACS)-lift and fat grafting (Group III), and those treated with a MACS-lift, fat grafting, and PRP(Group IV).
METHODS:
For the first part of this study, i.e., evaluation of recovery time after surgery, the following selection criteria were used: nonsmoking females, aged 35-65 years, with a complete documented follow-up. In total, 82 patients were included in the evaluation of patient-reported recovery time. For the second part of the study, i.e., evaluation of potential differences in aesthetic outcome, the records of these 82 patients were screened for the presence of pre- and postoperative standardized photographs in three views (AP, lateral, and oblique), leaving 37 patients to evaluate. A questionnaire was developed to evaluate the aesthetic outcome in all four groups of patients. This questionnaire was given to an expert panel that consisted of ten plastic surgeons.
RESULTS:
The addition of PRP to a lipofilling procedure resulted in a significant drop in the number of days needed to recover before returning to work or to restart social activities [Group I (no PRP) took 18.9 days vs Group II (PRP) took 13.2 days, p = 0.019]. There seemed to be no effect when PRP was added to a MACS-lift + lipofilling procedure. Also, the aesthetic outcome of the lipofilling and MACS-lift + lipofilling groups that received PRP (Groups II and IV) was significantly better than the groups without PRP (Groups I and III).
CONCLUSIONS:
Adding PRP to facial lipofilling reduces recovery time and improves the overall aesthetic outcome of a MACS-lift.
LEVEL OF EVIDENCE V:
This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.





Pubmed.gov
Dra Linda Tovito
@ntiaging.

Evaluation of effects of platelet-rich plasma on human facial skin

 2014 Aug 25:1-3. [Epub ahead of print]

Evaluation of effects of platelet-rich plasma on human facial skin.

Author information

  • 1Department of Dermatology, School of Medicine, Ondokuz Mayis University , Samsun , Turkey.

AbstractIntroduction: Platelet-rich plasma (PRP) has been used for rapid healing and tissue regeneration in many fields of medicine. This study was conducted to evaluate the effects of PRP application procedure on human facial skin. Methods: PRP was applied thrice at 2-week intervals on the face of ten healthy volunteers. It was applied to individual's forehead, malar area, and jaw by a dermaroller, and injected using a 27-gauge injector into the wrinkles of crow's feet. Participants were asked to grade on a scale from 0 to 5 for general appearance, skin firmness-sagging, wrinkle state and pigmentation disorder of their own face before each PRP procedure and 3 months after the last PRP procedure. While volunteers were evaluating their own face, they were also assessed by three different dermatologists at the same time by the same five-point scale. Results: There was statistically significant difference regarding the general appearance, skin firmness-sagging and wrinkle state according to the grading scale of the patients before and after three PRP applications. Whereas there was only statistically significant difference for the skin firmness-sagging according to the assessment of the dermatologists. 

Conclusion: PRP application could be considered as an effective procedure for facial skin rejuvenation.


Pubmed.gov. 2014
Dra Linda Tovito
@ntiaging.


PRP (Platelet Rich Plasma) o PRFG (Plasma Rich in Growth Factors).

Factores de crecimiento:






Son proteínas polipeptídicas con funciones
esenciales en los procesos de reparación y
regeneración de los tejidos.
Son proteínas que intervienen en el proceso de comunicación
intercelular, transmitiendo su información al interaccionar con
receptores específicos situados en la membrana celular.
Útiles en ingeniería tisular.
Se han venido utilizando en la cicatrización óptima
de tejidos.
EGF: Factor de Crecimiento Epidérmico (Epidermal
Growth Factor).
El primero descubierto (1962).
Puede obtenerse por ingeniería genética.
Usado en cicatrización de quemaduras, afecciones post-peeling y
en cosméticos.
• Sin embargo, más que el uso de un sólo factor de
crecimiento, se ha desarrollado, en diversos
campos, la técnica del PRP (Platelet Rich
Plasma) o PRFG (Plasma Rich in Growth
Factors).
Los FCs liberados tras la desgranulación de
las plaquetas en el lugar de una lesión proporcionan las señales iniciales para la activación de las células integrantes de los tejidos que rodean la lesión.
Como respuesta, las células locales y las infiltradas
sufren cambios en la proliferación, diferenciación y
síntesis de proteínas con distintas funciones biológicas.
Todos estos fenómenos definen el proceso de
activación celular.
De esta forma, en la actualidad, el PRGF se utiliza en
procedimientos tales como:
– Cirugía Maxilofacial: para ayudar en la fijación de los
soportes roscados en el hueso de los implantes
dentales que se colocan en el maxilar y en la
mandíbula.
– Cirugía Ortopédica y Traumatológica: por ejemplo para
regenerar lesiones de los ligamentos de articulaciones
como la rodilla, los hombros, etc.
– Cirugía Plástica y Estética: para optimizar la
vascularización y permanencia de los injertos, para
facilitar la cicatrización de zonas especificas…
– Se amplía el rango de aplicaciones relacionadas con la
cirugía y la curación de las heridas, la rehabilitación, la
promoción del crecimiento óseo…
PRP (o PRGF): concentrado autólogo de plaquetas
humanas en un pequeño volumen.
– Se evitan efectos colaterales indeseados, como el
rechazo inmunológico.
– Término PRP vs. PRGF.
• Es, por tanto, una concentración de los 7 factores de
crecimiento proteicos que secretan activamente las
plaquetas en el inicio del proceso de cicatrización de
heridas.

– PDGF, TGF-b, EGF, VEGF, IGF-1, bFGF (FGF2), HGF.