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Turn down - turn up: a simple and low-cost protocol for preparing platelet-rich plasma
Machado, Edilson Silva; Leite, Renata; dos Santos, Cintia Cichowski; Artuso, Georgia Lazzari; Gluszczak, Fernando; de Jesus, Leonardo Giovani; Caldas, José Manuel Peixoto; Bredemeier, Markus.
  • Machado, Edilson Silva; Hospital Nossa Senhora da Conceicao. Grupo Hospitalar Conceicao. Servico de Dor e Cuidados Paliativos. Porto Alegre. BR
  • Leite, Renata; Hospital Nossa Senhora da Conceicao. Grupo Hospitalar Conceicao. Laboratorio de Analises Clinicas. Porto Alegre. BR
  • dos Santos, Cintia Cichowski; Hospital Nossa Senhora da Conceicao. Grupo Hospitalar Conceicao. Laboratorio de Analises Clinicas. Porto Alegre. BR
  • Artuso, Georgia Lazzari; Hospital Nossa Senhora da Conceicao. Grupo Hospitalar Conceicao. Laboratorio de Analises Clinicas. Porto Alegre. BR
  • Gluszczak, Fernando; Centro de Pesquisa e Gerenciamento da Dor, Clinica Univida. Canoas. BR
  • de Jesus, Leonardo Giovani; Hospital Nossa Senhora da Conceicao. Grupo Hospitalar Conceicao. Servico de Dor e Cuidados Paliativos. Porto Alegre. BR
  • Caldas, José Manuel Peixoto; Medical School, Universidade do Porto. Public Health Institute. PT
  • Bredemeier, Markus; Hospital Nossa Senhora da Conceicao. Grupo Hospitalar Conceicao. Servico de Reumatologia. Porto Alegre. BR
Clinics ; 74: e1132, 2019. tab, graf
Artículo en Inglés | LILACS | ID: biblio-1019702
ABSTRACT

OBJECTIVE:

To describe and analyze a new protocol for the extraction of platelet-rich plasma (PRP) for use in clinical practice and compare this technique with methods that have been previously described in the medical literature.

METHODS:

We extracted PRP from 20 volunteers using four different protocols (single spin at 1600 ×g, single spin at 600 ×g, double spin at 300 and 700 ×g, and double spin at 600 and 900 ×g). In another group of 12 individuals, we extracted PRP with our new technique (named 'turn down-turn up') consisting of a double spin (200 ×g and 1600 ×g) closed system using standard laboratory equipment (including an ordinary benchtop centrifuge), where the blood remained in the same tube during all processes, reducing the risk of contamination. Platelet counts adjusted to baseline values were compared using analysis of covariance (ANCOVA).

RESULTS:

Using the four previously described protocols (mentioned above), we obtained concentrations of platelets that were 1.15-, 2.07-, 2.18-, and 3.19-fold greater than the baseline concentration, respectively. With the turn down-turn up technique, we obtained a platelet count that was 4.17-fold (95% confidence interval (CI) 3.09 to 5.25) greater than the baseline platelet count (p=0.063 compared with the double spin at 600 and 900 ×g method). The total cost of the disposable materials used in the extraction process was less than US$10.00 per individual.

CONCLUSION:

In the present study, we described a simple and safe method for obtaining PRP using low-cost devices.
Asunto(s)


Texto completo: Disponible Índice: LILACS (Américas) Asunto principal: Centrifugación / Técnicas de Laboratorio Clínico / Plasma Rico en Plaquetas Tipo de estudio: Estudio diagnóstico / Estudios de evaluación / Guía de Práctica Clínica / Evaluación Económica en Salud Límite: Adulto / Humanos / Masculino Idioma: Inglés Revista: Clinics Asunto de la revista: Medicina Año: 2019 Tipo del documento: Artículo País de afiliación: Brasil / Portugal Institución/País de afiliación: Centro de Pesquisa e Gerenciamento da Dor, Clinica Univida/BR / Hospital Nossa Senhora da Conceicao/BR / Medical School, Universidade do Porto/PT

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Texto completo: Disponible Índice: LILACS (Américas) Asunto principal: Centrifugación / Técnicas de Laboratorio Clínico / Plasma Rico en Plaquetas Tipo de estudio: Estudio diagnóstico / Estudios de evaluación / Guía de Práctica Clínica / Evaluación Económica en Salud Límite: Adulto / Humanos / Masculino Idioma: Inglés Revista: Clinics Asunto de la revista: Medicina Año: 2019 Tipo del documento: Artículo País de afiliación: Brasil / Portugal Institución/País de afiliación: Centro de Pesquisa e Gerenciamento da Dor, Clinica Univida/BR / Hospital Nossa Senhora da Conceicao/BR / Medical School, Universidade do Porto/PT