scholarly journals Autologous platelet-rich-fibrin-induced revascularization sequelae: Two case reports

2019 ◽  
Vol 7 (3) ◽  
pp. 28-38
Author(s):  
Ahmed M Eltawila ◽  
Rania El Backly
Keyword(s):  
Case Reports ◽  
Platelet Rich Fibrin ◽  
Autologous Platelet

scholarly journals Autologous Platelet-Rich Fibrin in the Treatment of Refractory Macular Holes

2019 ◽  
Vol 2019 ◽  
pp. 1-4
Author(s):  
Arif Koytak ◽  
Fadime Nuhoglu ◽  
Havvanur Bayraktar ◽  
Rukiye Ercan ◽  
Hakan Ozdemir
Keyword(s):  
Macular Hole ◽  
Sulfur Hexafluoride ◽  
Case Reports ◽  
Effective Alternative ◽  
Platelet Rich Fibrin ◽  
Gas Tamponade ◽  
First Case ◽  
Macular Holes ◽  
Novel Method ◽  
Autologous Platelet

Purpose. To describe a novel method for the treatment of refractory macular holes. Methods. Two case reports on the use of autologous platelet rich fibrin (PRF), followed by sulfur hexafluoride gas tamponade to facilitate closure of refractory macular holes. Results. Macular holes were succesfully closed within a week in both cases. Best corrected Snellen visual acuities improved from counting fingers to 0.16 in the first case, and from 0.05 to 0.2 in the second case. No complication occurred during or after the procedures. Conclusion. The use of autologous PRF seems to be a safe and effective alternative method for the treatment of refractory macular holes. Further experience and studies are required to assess the value of autologous PRF in the management of challenging macular hole cases of different etiologies. To the best of our knowledge, this is the first use of autologous PRF in the treatment of macular holes.

scholarly journals Autologous Platelet-Rich Fibrin (PRF) as an Adjunct in the Management of Osteoradionecrosis and Medication-Related Osteonecrosis of Jaws. Case Series in A Single Centre

2021 ◽  
Vol 11 (8) ◽  
pp. 3365
Author(s):  
Benjie Law ◽  
Hui Yuh Soh ◽  
Syed Nabil ◽  
Rama Krsna Rajandram ◽  
Abd Jabar Nazimi ◽  
...  
Keyword(s):  
Case Series ◽  
Cost Effective ◽  
Control Group ◽  
Platelet Rich Fibrin ◽  
Tissue Healing ◽  
Number Of Patients ◽  
Short Period ◽  
Oral And Maxillofacial Region ◽  
Surgical Adjunct ◽  
Autologous Platelet

Osteoradionecrosis (ORN) of the jaws and medication-related osteonecrosis of the jaws (MRONJ) are uncommon but serious diseases affecting the oral and maxillofacial region with clinically similar appearance but distinct pathophysiology. Management of ORN and MRONJ is inherently challenging and the treatment outcomes are unpredictable. The use of autologous platelet concentrates (APCs) to promote hard and soft tissue healing is well described in the literature, and the efficacy of leucocyte and platelet-rich fibrin (L-PRF) has been well documented in a number of clinical studies. The aim of this study was to present our treatment strategy and the outcomes of incorporating L-PRF as a surgical adjunct in management of ORN and MRONJ in our centre. Methods: eight cases of ORN and MRONJ were treated with a combination of sequestrectomy and L-PRF as a surgical adjunct. Results: the overall success was 87.5%. Using L-PRF as an adjunct, we were able to predictably manage ORN and MRONJ without causing significant morbidity. Conclusion: our experience shows that L-PRF may be used as a valuable and cost-effective adjunct to surgical management of ORN and MRONJ. However, due to a limited number of patients, and a short period of review, the true effectiveness of the method is yet to be demonstrated in a longer follow-up study including a greater number of patients, besides the inclusion of a control group.

Obsidian ASG® Autologous Platelet-Rich Fibrin Matrix and Colorectal Anastomotic Healing: A Preliminary Study

2021 ◽  
Vol 39 ◽  
Author(s):  
Andreas Shamiyeh ◽  
◽  
Bettina Klugsberger ◽  
Carina Aigner ◽  
Wolfgang Schimetta ◽  
...  
Keyword(s):  
Anastomotic Leakage ◽  
Anastomotic Leak ◽  
Colorectal Resection ◽  
Rectal Resection ◽  
Leak Rate ◽  
Anastomotic Healing ◽  
Platelet Rich Fibrin ◽  
Anastomotic Leak Rate ◽  
Fibrin Matrix ◽  
Autologous Platelet

Introduction: Anastomotic leakage (AL) following colorectal resection is a devastating complication affecting morbidity, mortality, and quality of life of patients in the long term. Different tissue sealants and biologic glues were tested showing conflicting results regarding their influence on anastomotic healing and leak prevention. Application of autologous platelet-rich fibrin (Vivostat A/S, Alleroed, Denmark), which acts as a source of angiogenic growth factors and cytokines, showed promising results in an in-vivo porcine model. Herein, we present the first human study of stapled colorectal anastomoses supplemented with an autologous-derived platelet-rich fibrin matrix (Obsidian ASG®, Rivolution GmbH, Rosenheim, Germany and Vivostat A/S, Alleroed, Denmark). Materials and Methods: A retrospective analysis of prospectively accumulated data was performed in two colorectal centers (Linz, Vienna) on patients undergoing left-sided colorectal or coloanal stapled anastomosis between October 2018 and December 2019. The Obsidian ASG® Matrix was applied to the rectal stump, and after closure with the circular stapling device, at the circumference of anastomosis in every single case. Anastomoses were supplemented with intra- and extra-anastomotic application (IAA—intra-anastomotic application developed by Rivolution GmbH, Rosenheim, Germany) of Obsidian ASG® Matrix. The primary endpoints were incidence of perioperative complications and anastomotic leak rate. Results: Two-hundred-sixty-one (138 female) patients underwent left-sided colonic (n=177) or rectal resection (n=84). In 253 (96.9%) cases, a laparoscopic or robotic-assisted approach was used. There were no complications attributable to the intraoperative application of the Obsidian ASG® Matrix. All intraoperative leak tests were negative. Overall, anastomotic leak rate accounted for 2.3% (6/261). AL following colonic and rectal resection was seen in 2.3% (4/177) and 2.4% (2/84), respectively. Complication and leak rate was similar in the two participating centers. Postoperative fever and elevated CRP levels were significantly correlated to AL. There was no significant risk factor for AL on multivariate analysis. Conclusion: Application of an autologous-derived platelet-rich fibrin matrix (Obsidian ASG®) at anastomotic site following colorectal resection is safe and associated with a low rate of anastomotic leakage.

scholarly journals Local Application of Autologous Platelet-Rich Fibrin Patch (PRF-P) Suppresses Regulatory T Cell Recruitment in a Murine Glioma Model

2018 ◽  
Vol 56 (7) ◽  
pp. 5032-5040 ◽  
Author(s):  
Wojciech K. Panek ◽  
Katarzyna C. Pituch ◽  
Jason Miska ◽  
Julius W. Kim ◽  
Aida Rashidi ◽  
...  
Keyword(s):  
T Cell ◽  
Regulatory T Cell ◽  
Local Application ◽  
Cell Recruitment ◽  
Platelet Rich Fibrin ◽  
Glioma Model ◽  
Autologous Platelet ◽  
Murine Glioma

scholarly journals Obtention of injectable platelets rich-fibrin (i-PRF) and its polymerization with bone graft: technical note

2015 ◽  
Vol 42 (6) ◽  
pp. 421-423 ◽  
Author(s):  
Carlos Fernando de Almeida Barros Mourão ◽  
Helder Valiense ◽  
Elias Rodrigues Melo ◽  
Natália Belmock Mascarenhas Freitas Mourão ◽  
Mônica Diuana-Calasans Maia
Keyword(s):  
Bone Graft ◽  
Platelet Rich Plasma ◽  
Technical Note ◽  
Platelet Concentrates ◽  
Soft Tissue Healing ◽  
Liquid Form ◽  
Platelet Rich Fibrin ◽  
Tissue Healing ◽  
Autologous Platelet ◽  
Injectable Form

The use of autologous platelet concentrates, represent a promising and innovator tools in the medicine and dentistry today. The goal is to accelerate hard and soft tissue healing. Among them, the platelet-rich plasma (PRP) is the main alternative for use in liquid form (injectable). These injectable form ofplatelet concentrates are often used in regenerative procedures and demonstrate good results. The aim of this study is to present an alternative to these platelet concentrates using the platelet-rich fibrin in liquid form (injectable) and its use with particulated bone graft materials in the polymerized form.

scholarly journals Successful Management of Treatment-Resistant Alopecia Areata with Platelet Rich Plasma: A Case Series

2019 ◽  
Vol 11 (2) ◽  
pp. 50-52
Author(s):  
Sanjeewani Fonseka ◽  
Y.M.D.M Bandara ◽  
Brabaharan Subhani
Keyword(s):  
Alopecia Areata ◽  
Platelet Rich Plasma ◽  
Case Reports ◽  
Immunosuppressive Agents ◽  
Case Series ◽  
Treatment Resistant ◽  
Successful Management ◽  
Autologous Platelet Rich Plasma ◽  
Dermal Injection ◽  
Autologous Platelet

Abstract Introduction. Alopecia areata (AA) is an autoimmune disease-causing non-scarring alopecia. It is usually treated with immunosuppressive agents, to which some patients fail to respond adequately. Material and Methods. Three patients with AA refractory to standard therapy were treated with intra-dermal injection of autologous platelet rich plasma (PRP) every four weeks. Results. All three patients showed remarkable improvement after multiple sessions of PRP treatment. Conclusion. Autologous PRP is safe and effective in treatment-resistant forms of AA demonstrated in many case reports; therefore it deserves further study with randomized, placebo-controlled trials.

scholarly journals Assessment of platelet-rich fibrin in the maintenance and recovery of cell viability of the periodontal ligament

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Lorena Bortolini Navarro ◽  
Fabiane Barchiki ◽  
Wilson Navarro Junior ◽  
Everdan Carneiro ◽  
Ulisses Xavier da Silva Neto ◽  
...  
Keyword(s):  
Cell Viability ◽  
Periodontal Ligament ◽  
Trypan Blue ◽  
Enzymatic Digestion ◽  
Type Ii ◽  
Platelet Rich Fibrin ◽  
Pdl Cells ◽  
Autologous Platelet ◽  
Number Of Cells ◽  
Group 1

AbstractThis study analyzed the efficacy of autologous platelet-rich fibrin (PRF) in maintaining and recovering cell viability of the periodontal ligament (PDL). The PDL cells were isolated from 45 extracted teeth randomly distributed among 6 groups: 5 min, 1 h, 2 h, PRF 30 min, PRF 1 h and PRF 2 h. In the groups 5 min, 1 h and 2 h (n = 5), the teeth were kept dry in extra-alveolar times of 5 min, 1 h and 2 h respectively. The teeth of the groups PRF 30 min, PRF 1 h and PRF 2 h (n = 10) were kept dry at extra-alveolar times of 30 min, 1 and 2 h followed by immersion in PRF for 45 min. PDL cells were isolated by enzymatic digestion with type II collagenase and dispase, counted and analyzed for viability with Trypan blue vital dye in Neubauer chamber. The variables total number of cells and cell viability demonstrated that in the 5 min, 1 h and 2 h groups there was a decrease after the extra-alveolar dry times of 1 and 2 h. In comparison with the total number of cells, group 1 h, considered immediate reimplantation, did not present statistical difference when compared to the groups PRF 30 min, PRF 1 h and 2 h, a result that demonstrates that PRF assists in cell maintenance and recovery. PRF provided increased cell viability in relation to the different dry extra-alveolar times analyzed (p < 0.001). Autologous PRF presented effectiveness in maintaining and recovering PDL cells from extracted teeth and kept dry for up to 2 h.

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