PRP Group Research Articles

Comparative evaluation of intralesional platelet rich plasma versus tranexamic acid (50mg/ml) in the treatment of facial melasma

: Melasma is a recalcitrant hyperpigmentary condition. The pathogenesis of melasma is complex and not fully understood. Although many treatment modalities have been tried for melasma but no modality is considered as gold standard.: This study aimed to compare efficacy of intralesional platelet rich plasma with tranexamic acid (50mg/ml) in the treatment of facial melasma.: Total 64 patients were enrolled in the current study from July 2023 to March 2024. In group A, 31 patients were treated with intralesional PRP and in group B, 33 patients were treated with intralesional TXA (50mg/ml). Intralesional injections were given every 4 weekly till lesions resolve or a maximum of 6 sessions followed by monthly follow up for 3 months. Grade of clinical improvement was measured by percentage reduction in mMASI score at baseline, at every session and at follow up. Patient satisfaction score was assessed using a five-point Likert scale at the end of the study.: In the PRP group, 64.52% patients showed moderate to good response whereas in the TXA group, 72.72% patients showed good to very good response. Only 41.94% patients were satisfied in group A while 81.81% patients were satisfied with their recovery after treatment in group B.: TXA was effective in all types of melasma. PRP was significantly effective only in female patients whereas TXA was significantly effecacious in both male and female patients. We suggest monthly therapy with intralesional TXA at a higher dosage of 50 mg/ml as an efficient and time-saving treatment modality over intralesional PRP.

Efficacy of using adipose-derived stem cells and PRP on regeneration of 40 -mm long sciatic nerve defect bridged by polyglycolic-polypropylene mesh in canine model

BackgroundSciatic nerve repair becomes a focus of research in neurological aspect to restore the normal physical ability of the animal to stand and walk. Tissue engineered nerve grafts (TENGs) provide a promising alternative therapy for regeneration of large gap defects. The present study investigates the regenerative capacity of PRP, ADSCs, and PRP mixed ADSCs on a long sciatic nerve defect (40-mm) bridged by a polyglycolic polypropylene (PGA-PRL) mesh which acts as a neural scaffold.Materials and methodsThe study was conducted on 12 adult male mongrel dogs that were randomly divided into 4 groups: Group I (scaffold group); where the sciatic defect was bridged by a (PGA-PRL) mesh only while the mesh was injected with ADSCs in Group II (ADSCs group), PRP in Group III (PRP group). Mixture of PRP and ADSCs was allocated in Group IV (PRP + ADSCs group). Monthly, all animals were monitored for improvement in their gait and a numerical lameness score was recorded for all groups. 6 months-post surgery, the structural and functional recovery of sciatic nerve was evaluated electrophysiologically, and on the level of gene expression, and both sciatic nerve and the gastrocnemius muscle were evaluated morphometrically, histopathologically.ResultsNumerical lameness score showed improvement in the motor activities of both Group II and Group III followed by Group IV and the scaffold group showed mild improvement even after 6 months. Histopathologically, all treated groups showed axonal sprouting and numerous regenerated fascicles with obvious angiogenesis in proximal cut, and distal portion where Group IV exhibited a significant remyelination with the MCOOL technique. The regenerative ratio of gastrocnemius muscle was 23.81%, 56.68%, 52.06% and 40.69% for Group I, II, III and IV; respectively. The expression of NGF showed significant up regulation in the proximal portion for both Group III and Group IV (P ≤ 0.0001) while Group II showed no significant difference. PDGF-A, and VEGF expressions were up-regulated in Group II, III, and IV whereas Group I showed significant down-regulation for NGF, PDGF-A, and VEGF (P ≤ 0.0001).ConclusionADSCs have a great role in restoring the damaged nerve fibers by secreting several types of growth factors like NGF that have a proliferative effect on Schwann cells and their migration. In addition, PRP therapy potentiates the effect of ADSCs by synthesis another growth factors such as PDGF-A, VEGF, NGF for better healing of large sciatic gap defects.

Effectiveness of ultrasound guided platelet rich plasma injection in comparison with extracorporeal shock wave therapy on improving pain and function in medial epicondylitis of elbow: a randomized controlled trial

Background: Effectiveness of ultrasound guided Platelet Rich Plasma injection in comparison with extracorporeal shock wave therapy on improving pain and function in medial epicondylitis of elbow: A randomized controlled trial Objective was to determine the effectiveness of ultrasound guided Platelet Rich Plasma injection in comparison with extracorporeal shock wave therapy on improving pain and function in medial epicondylitis of elbow. Methods: Randomized controlled trial was conducted on fifty-four patients with medial epicondylitis of elbow attending Sports Medicine OPD at RIMS, hospital, Imphal, were selected for this study and randomized into 2 treatment groups: platelet rich plasma injection and extracorporeal shock wave therapy. The outcome measures were visual analog scale and Mayo elbow performance score. For descriptive statistics mean, standard deviation and frequency were used. Students t-test and Chi square tests were used for analysis of different variables. A p-value <0.05 was taken as significant. Results: The baseline characteristics of the patients in the control and intervention group were not statistically significant. At the end of 12 weeks and 24 weeks, there was statistically significant improvement in both mean difference of VAS (p=0.04) (p=0.03) and MEPS (p=0.00) (p=0.03) from baseline in both the groups but this improvement was significantly more in the PRP group. Conclusions: Platelet rich plasma injection is superior to extracorporeal shock wave therapy on improving pain and function in medial epicondylitis at the end of 6 months.

Eff ect of platelet-rich autoplasma on endometrial thickness and receptor sensitivity to estrogen and progesterone.

The effect of platelet-rich autoplasma on endometrial thickness and receptor sensitivity to estrogen and progesterone. This prospective clinical study included 200 patients. The participants in the study were divided into two groups. The first control group received hormone replacement therapy (HRT). The second study group received an intrauterine infusion of platelet-rich autoplasma (PRP group). On the 19th day of the menstrual cycle, an ultrasound examination was performed to assess endometrial thickness, as well as an immunohistochemical analysis to determine receptor sensitivity to estrogen and progesterone. In the course of the study, we found that the use of platelet-rich autoplasma increased the thickness of the endometrium by 0.85 mm; the average thickness of the endometrium in the group who received PRP therapy was 8.25 (8.25-8.61) mm; and in the group of patients who only received HRT, it was 7.40 (7.34-7.65) mm. The sensitivity of receptors to estrogen in the experimental group increased by 3.5, in the experimental group it was 75.00 (71.43-74.22), and in the control group it was 71.50 (67.05-70.85). The sensitivity of receptors to progesterone also increased by 9.0, in the experimental group it was 95.0 (91.4-93.8), and in the control group it was 86.0 (83.47-86.27). Due to the action of platelet factors, PRP therapy has a positive effect on the endometrium, increasing its thickness and improving its receptivity. Therefore, it can be concluded that this method can find great practical application to improve the outcomes of assisted reproductive technology programs.

Comparison of the short-term effect of intra-articular hyaluronic acid and platelet-rich plasma injections in knee osteoarthritis: a randomized clinical trial.

Osteoarthritis (OA) is one of the most common degenerative joint diseases which involved all joints. It is very important to choose a treatment method with high efficiency to reduce the pain and disability of patients and also to improve their quality of life. The current study aimed to investigate the therapeutic effects of intra-articular injection of PRP and hyaluronic acid (HA) in the knee of people with knee osteoarthritis (KOA). In this randomized clinical trial study, 90 patients with KOA were randomly divided into two groups of intra-articular HA and PRP. The patients of the two groups were followed up for five months and different outcomes were recorded. The McMaster index (WOMAC) evaluated all patients at rest and during movements. Measurements were taken at the beginning and after the third month of follow-up. Three month after the last injection (5th month) and after adjusting of baseline value using analysis of covariance, the mean of knee pain, stiffness, physical function and finally total score in the PRP group, was significantly lower than the HA group. Regarding the Osteoarthritis grade, the mean of knee pain, Stiffness, Physical function and finally total score in the PRP group was significantly lower than the HA group in all Osteoarthritis grades. Also, there were no complications in the studied groups. The results of the current study showed that pain and stiffness reduction as well as physical function of the knee joint in the PRP group was better than in the HA group.

Chondroprotective Effects of a Single PRP Injection in a Spontaneous Osteoarthritis Model of Dunkin Hartley Guinea Pig: An Immunohistochemical Analysis.

The evaluation of anti-apoptotic and chondroprotective properties of a single injection of PRP using immunohistochemistry (IHC). This was a placebo-controlled blinded experimental study. Ten healthy Dunkin Hartley guinea pigs were selected. One knee of each animal was injected with a single injection of PRP (Group A); the contralateral knee acted as a control and was injected with a single injection of normal saline (Group B). These groups were further divided into A3 and B3 based on the timeline ofanimal sacrifice (3months) and A6 and B6 (6months). The formalin-preserved articular cartilage blocks were subjected to IHC to stain Aggrecan, Caspase-3, and Collagen-2. The mean IHC score was significantly low for Caspase-3 (p-0.029) in intervention group (A3) in comparison to placebo control group (B3) pointing towards decreased apoptosis. The mean IHC values were significantly higher for Collagen II (p-0.011) for intervention group (A6) in contrast to control group (B6); values were also significantly low for Caspase-3 (p-0.029) in A6 as compared to B6. The mean Caspase-3 values were significantly higher in A6 as compared to A3 (p-0.029). The impact of a solitary injection of PRP on upregulation of anabolic pathways inside cartilage is relatively slower as compared to its effect on downregulation of apoptotic pathways. Even a single PRP injection holds the potential to change cartilage microenvironment, but the effects are not long lasting.

Leukocyte-Poor Platelet-Rich Plasma as an Adjuvant to Arthroscopic Rotator Cuff Repair Reduces the Retear Rate But Does Not Improve Functional Outcomes: A Double-Blind Randomized Controlled Trial

Background: Whether the use of PRP as an adjuvant of rotator cuff repairs leads to improved tendon healing and better functional outcomes remains unclear in clinical evidence. Purpose: The main purpose of this study was to assess whether the use of leukocyte-poor platelet-rich plasma (LP-PRP) as an adjuvant to arthroscopic rotator cuff repair (ARCR) decreases the rate of retears compared with a control group. The secondary objective was to analyze whether LP-PRP improves patient-reported outcomes. Study Design: Randomized controlled trial; Level of evidence, 1. Methods: This was a double-blind randomized controlled trial at a single center. A consecutive series of 96 patients with rotator cuff tears <3 cm were enrolled and randomly allocated to the control group (double-row suture-bridge ARCR alone [n = 48]) and the PRP group (double-row suture-bridge repair, followed by 1 LP-PRP injection during surgery [n = 48]). The visual analog scale (VAS) for pain, the American Shoulder and Elbow Surgeons (ASES) score, the Single Assessment Numeric Evaluation (SANE), and the Pittsburgh Sleep Quality Index (PSQI) were administered preoperatively and at 6- and 12-month follow-up. Magnetic resonance imaging (MRI) was performed to evaluate tendon integrity at 6-month follow-up. Both patients and assessors were blinded to the intervention received during surgery. Results: The mean patient age was 56.1 ± 2.98 years. Of the 96 patients, 90 had MRI performed at 6 months after surgery (94% radiological follow-up). The retear rate in the PRP group was 15.2% (7/46 [95% CI, 6%-28%]), which was lower than that in the control group of 34.1% (15/44 [95% CI, 20%-49%]) (P = .037). Therefore, the risk ratio of ruptures in patients exposed to LP-PRP was 0.44 (95% CI, 0.2-0.9; P = .037). Overall, the ASES, VAS, SANE, and PSQI scores showed a statistical improvement after surgery (P < .001). There were no significant differences in functional scores between the groups. Most of the patients exceeded the minimal clinically important difference for the ASES, SANE, and VAS without significant differences between the groups. Conclusion: In patients with rotator cuff tears <3 cm undergoing double-row suture-bridge repair, a 5-mL dose of LP-PRP injected at the tendon-bone interface significantly reduced the retear rate. However, the use of LP-PRP in terms of postoperative pain and patient-reported outcomes failed to show clinically meaningful effects. Registration: NCT04703998 (ClinicalTrials.gov identifier).

ROLE OF PRP IN DIABETIC FOOT ULCER

Introduction: Diabetic Foot Ulcers (Dfus) are among the most common complications of diabetes mellitus with a lifetime incidence of up to 15% among the diabetic population. Current standard management consists of surgical debridement followed by frequent dressing changes with tight infection and glycemic control. Despite this comprehensive approach, complication and amputation rates remain high. A newer treatment modality PRP gel dressing is being investigated. Method:This study is a prospective comparative study done in Dept of General Surgery for period of 9 months with 30 diabetic patients with chronic non healing foot ulcer. PRP dressings were done biweekly for 8 weeks. Result: 80% patients in present study were more than 40yrs.Hypertension was present in 80% of patients in both control and PRP group and hyperlipidemia was present in 66% of control group and 73% in PRP group. After regular biweekly dressing with PRP gel, by the end of eight weeks PRP dressing patients showed better wound healing with p value &lt; 0.05 In PRP dressing group rate of ulcer healing was found to be maximum in 4 weeks after which this rate declined. Conclusion:The present study supports the conclusion that autologous PRP gel does effectively accelerate wound healing in clean diabetic foot ulcers when compared with the conventional saline gauze antiseptic dressing.

Ratlarda İntrabdominal Adezyonların Üzerine Trombositten Zengin Plazma’nın Etkisi

Cerrahi alanındaki teknolojik gelişmelere rağmen intraabdominal adezyonlar; kısırlık, abdominaopelvik ağrı ve bağırsak tıkanıklıklarının en önemli nedenlerinden biridir. Bu çalışmada; trombositten zengin plazma (PRP)’nin intraabdominal adezyonların önlenmesindeki etkinliğinin ortaya konulması amaçlandı. Çalışmada 4 aylık 25 adet erkek Spraque Dawley ırkı rat kullanıldı. Ratlar her grupta 10 rat olmak üzere iki eşit gruba ayrıldı. Beş rat ise donör olarak kullanıldı. Bu ratlardan elde edilen kanlardan RRP hazırlandı. Genel anestezi altında operasyonlar klasik cerrahi kurallar altında iliosekal bölge açığa çıkarıldı ve 1 cm2’lik bir bölge travmatize edildi. Birinci grup kontrol olarak değerlendirildi ve herhangi bir kimyasal uygulanmadı. İkinci gruptaki ratlara PRP 0.4 ml dozunda lokal olarak uygulandı. Postoperatif 14. günde relaparatomi yapıldı. Sonuçlar makroskopik ve histopatolojik olarak değerlendirildi. PRP grubunun adezyon derecesi ve fibrozis dereceleri kontrol grubu ile karşılaştırıldığında istatistiksel olarak anlamlı olduğu saptandı (p0.05). Sonuç olarak, PRP’nin intraabdominal adezyonları önlemede daha etkili olduğu saptandı.

Platelet-rich plasma as a new and successful treatment for lichen planopilaris: A controlled blinded randomized clinical trial.

Lichen planopilaris (LPP) is one of the most common causes of scarring hair loss caused by immune-mediated inflammation resulting in atrophy and scaling. The key to preventing this irreversible hair loss is diagnosing and starting treatment at the earliest possible stage. As there is no definite cure for LPP, the therapy could be challenging. In the study, we conducted a single-blinded randomized clinical trial to evaluate the therapeutic effects, safety, and tolerability of platelet-rich plasma versus topical clobetasol in the treatment of LPP. A randomized single-blinded controlled clinical trial was conducted in 24 LPP patients referring to our dermatology clinic between August 2022 and March 2023. Patients in the control group were treated with topical clobetasol 0.05% applied at night, and patients in the case group, in addition to topical clobetasol, received three sessions of PRP injection monthly. Both groups were assessed 1, 2, and 6 months after the start of the study by the Lichen Planopilaris Activity Index (LPPAI), physician and patient satisfaction, tolerability, and recording adverse effects. The average age in the clobetasol and PRP groups was 43.75 ± 13.51 and 42.75 ± 9.67, respectively (p = 0.83). In terms of gender, all 12 cases (100%) in the clobetasol group and 9 cases (75%) in the PRP group were female (p = 0.21). Both PRP and topical clobetasol effectively reduced LPPAI in the first 2 months; however, after 6 months, the LPPAI significantly increased in the clobetasol group (p = 0.001). There were no significant differences in LPPAI between the two groups at the beginning of the study and after 1 month. However, the mean LPPAI score in the clobetasol group was significantly higher than in the PRP group at 2 and 6 months after the start of the study (p = 0.01). Patient satisfaction with treatment increased in both groups during follow-up sessions, but at the end of the follow-up period, it was significantly higher in the PRP group (p = 0.03). Finally, the study did not have any serious adverse effects, and the pain experienced during PRP injection was tolerable for the patients. Overall, treatment tolerability was excellent in both groups. Given the different efficacy profiles, PRP could be considered a new and effective choice for the treatment of LPP.

Single Shot of Knee Intraarticular Injection of Platelets Rich Plasma versus Hyaluronic Acid Injections for Symptomatic Knee Osteoarthritis. An Observational Prospective Study

The aim of this study was to evaluate the effectiveness and safety of intra-articular PRP and HA in KOA patients. Methods: The current work was prospective randomized observational. Participants were divided into two groups. Group 1; 1 intra-articular PRP injection (15 mL) in 72 patients and Group 2; A single intra-articular injection of HA (80 mg/4 mL) was administered to 72 patients. All patients were evaluated before infiltration and 1, 3, 6, and 12 months after injection. Results: No significant difference was detected in the demographic distribution (gender and age) and Grade RT, Grade RL, Grade II OA and Grade III OA classifications of patients who received intra-articular PRP or HA injection for knee OA (p&amp;gt;0.05). Compared with the HA group WOMAC mean of 48.8 and p&amp;lt;0.05, there was no significant change in the PRP groups with the WOMAC mean of 68.9. At month 3, each group had significantly reduced overall WOMAC score compared to baselines in both groups. The mean WOMAC was 48.2 in the HA and 47.9 in the PRP group (P&amp;lt;0.001). At 6 months, the average WOMAC score of the PRP group was 39.4, while this rate was 56.3 in the HA group (P&amp;lt;0.001). The PRP group showed a steady improvement, while those treated with HA showed a rapid deterioration. At 12 months, the HA group's WOMAC scores (74.1) returned to baseline levels. The mean WOMAC of the PRP group was (58.9) (P&amp;lt;0.001). Conclusion: The overall PRP improvement outweighs HA injections

A Comparative Study of Intra-Articular Knee Injection of Leukocyte-Poor Platelet-Rich Plasma Compared to Corticosteroids and Local Anesthetics in Patients with Knee Osteoarthritis

Background: Knee osteoarthritis (OA) is the most common reason for orthopedic secondary care referral. And it is one of the main causes of disability in adults worldwide. It is estimated to affect between 10 to 25% of patients over the age of 60. Intra-articular corticosteroid injection (IA CS) and physical therapy were the two choices in an attempt to provide symptomatic management or deferred surgery. There is a growing trend is intra-articular platelet-rich plasma (IA PRP) injection to reduce pain and improve function in OA patients. PRP is divided into two types: leukocyte-poor platelet-rich plasma (LP-PRP) and leukocyte-rich platelet-rich plasma (LR-PRP). It was shown that LR-PRP increases pro-inflammatory factors and also decreases anti-catabolic mediators, and LP-PRP has the opposite aspect.&#x0D; Methods: In our research 40 patients were divided into two equal groups, IA corticosteroid and leukocyte-poor platelet-rich plasma (LP-PRP) 40 cc of blood from the basilic vein of the upper limb is used with two step centrifugation. The final samples were 4 millilitres product injected intra-articular. group two (corticosteroid (CS)) received an intra-articular injection of triamcinolone acetate (Kenalog) 40 mg/ml along with 4 ml of lidocaine 0.02% (Abureyhan Co.) for a total of 5 ml. The needle used is a 22-gauge pencil-point Quincke needle (Dr. Japan Co, Ltd), which is performed with the Sonosite Edge II ultrasound guide and in an anterior-lateral manner in the knee joint. Pain was assessed on a visual analogue scale (VAS range 0-10 points) before, one week, one month, two month and 3 months after the operation. The WOMAC questionnaire was also filled before injection and three months following injection and other variables were examined.&#x0D; Results: There were no significant differences between the groups across all the baseline parameters including age, sex, body mass index and comorbidities including high blood pressure, diabetes and smoking. Both injection groups were effective in reducing patients' pain from one week to three months after injection. The level of pain in the first week after injection was significantly lower in the corticosteroid group than in the PRP group. In the first month and the third month after the injection, the pain reduction according to mean scores of VAS was the same in both groups.&#x0D; Conclusion: In short, one injection of PRP can reduce the pain of patients with osteoarthritis of the knee as much as corticosteroids during a three-month treatment process. Considering the possible side effects of corticosteroids, this alternative treatment can be considered with further investigation.

(014) Safety and Efficacy of Platelet-Rich Plasma Injection for the Treatment of Erectile Dysfunction; A Randomized Prospective Study

Abstract Introduction Platelet-rich plasma (PRP) intracorporeal injection is one of the popular regenerative therapies that has been gaining much interest in recent years as an adjunct or alternative treatment for erectile dysfunction (ED). Nevertheless, scientific evidence to support its clinical efficacy remains controversial. Objective The aim of this study was to evaluate the safety and efficacy of PRP injections for the treatment of ED. Methods A prospective, randomized, double-blinded, placebo-controlled, interventional clinical study was conducted on 52 subjects at the Department of Urology, Faculty of Medicine, Beni-Suef University. Patients were randomized into two groups: the PRP group (n=26) and the placebo (saline) group (n=26). Each participant received three sessions (at two-week intervals) of PRP or saline injections according to his assigned group. International index of erectile function-5 (IIEF-5) scores and safety-related observations were collected at the 1st, 3rd, and 6th months of follow-up. Results The median age and ED duration were statistically comparable for both groups, 52.2 versus 52.5 years and 12.87 versus 11.8, respectively (P = 0.285). With regards to the efficacy of PRP, there were no statistically significant differences between both groups after 1, 3, and 6 months of treatment. After 1 month of treatment, the mean IIEF-5 score for the PRP group was 16.12 ± 1.25 versus 15.99 ± 1.21 for the placebo group (P = 0.683). After 3 months, the IIEF-5 score for the PRP group was 16.44 ± 1.17 compared to 16.31 ± 1.06 for the placebo group (P = 0.653). Also after 6 months, the IIEF-5 score for the PRP group was 16.35 ± 1.45 close to 16.23 ± 1.19 for the placebo group (P = 0.727). No transient hemorrhagic adverse events (hematuria, local petechial bleeding, or ecchymosis) or other side effects were reported during the injection and follow-up period for both groups. Conclusions The results of this trial suggest that although the treatment of ED with 3 injections of intracavernosal PRP separated by two-week intervals may be safe, it is not more effective than a placebo injection. Disclosure No.

A Comparative Study of the Efficacy of Platelet-rich Plasma Therapy versus Topical Application of 0.1% Tretinoin Gel in the Management of Striae Gravidarum

Abstract Aim: To determine the relative efficacy of platelet rich plasma therapy versus topical 0.1% tretinoin gel in the management of striae gravidarum. Objectives: To determine the degree of response to platelet rich plasma therapy in comparison with topical 0.1% tretinoin gel in striae gravidarum and to determine the treatment of choice amongst platelet rich plasma and topical 0.1% tretinoin gel. Material and Methods: Study design - A randomised control cross sectional comparative study among the female patients with striae gravidarum was carried out at department of Dermatology, Venereology &amp; Leprosy, Base Hospital, Delhi Cantt, New Delhi. Results: There was early and fast clinical improvement in PRP group with continuous clinical improvement noticed in successive sittings although degree of improvement was lower in 5th and 6th sittings. There was also an earlier plateau of response, in tretinion group after 04 sittings with mild or little improvement in the last 02 sittings in comparison to the PRP group. Conclusion: Platelet Rich Plasma therapy was effective as compared to topical 0.1% Tretinoin gel in the management of Striae gravidarum. PRP had better treatment outcome as well as patient satisfaction.

Comparison of efficacy of ultrasound-guided platelet rich plasma injection versus dry needling in lateral epicondylitis-a randomised controlled trial.

To assess whether Ultrasound guideddry needling is adequate for both common extensor tendon tears and tendinosis or whether ultrasound guidedplatelet rich plasma (PRP) has a superior outcome when compared to dry needling when there are tears of the common extensor tendon. This is a single-centre, single-blinded, randomised controlled trial conducted between November 2018 and April 2020. 40 patients diagnosed with lateral epicondylitis based on clinical and sonographic features and having comparable baseline characteristics were randomly assigned to the two study groups (dry needling and PRP). Inclusion criteria were patients aged 20years or more who were symptomatic for at least 3 months with sonographic evidence of lateral epicondylitis. Exclusion criteria were complete tear of common extensor tendon confirmed on ultrasound and presence of other associated diseases like osteoarthritis of shoulder and elbow. There was significant improvement in the visual analogue scale pain score in PRP group compared to the dry needling group at 9 months. However, this difference was not evident at 3 and 6 months follow-up. Mean improvement in common extensor tendon thickness in PRP group (5.1 mm at 3 months and 4.3 mm at 6 months) was slightly better than dry needling (4.4 mm at 3 months and 4.0 mm at 6 months). There was no difference in tear (if present) healing between both groups at 3months. However at 6months follow up, PRP demonstrated significant (mean-2.5) healing in tear compared to dry needling (mean-3.1). Two injections of Ultrasound guidedPRP are more beneficial non operative treatment compared to ultrasound guideddry needling, in lateral epicondylitis.

Aflibercept 5+PRN with retinal laser photocoagulation is more effective than retinal laser photocoagulation alone and aflibercept 3+PRN with retinal laser photocoagulation in patients with high-risk proliferative diabetic retinopathy and diabetic macular edema: a 12-month clinical trial.

This study aimed to investigate and compare the efficacy and safety of retinal laser photocoagulation (PRP) alone, PRP with aflibercept 3+PRN, and PRP with aflibercept 5+PRN in patients with both high-risk proliferative diabetic retinopathy (PDR) and diabetic macular edema (DME). Overall, 170 patients with high-risk PDR and DME (170 eyes from 170 patients) who visited our ophthalmology clinic from December 2018 to December 2020 were divided into the PRP (n=58), aflibercept 5+PRN with PRP (n=53), and aflibercept 3+PRN with PRP (n= 59) groups. General information, such as age, sex, and eye category, was obtained. Moreover, best-corrected visual acuity (BCVA), baseline central macular foveal thickness (CFT), microaneurysm (MA), area of neovascularization (NV), area of hard exudate (HE), and cytokine levels in atrial fluid before and after treatment, were assessed. The χ2 test was used for comparison between groups for statistical data. Analysis of variance was used for the statistical description of measurement data, independent samples were analyzed using Student's t-test, and Student-Newman-Keuls test was used for group comparisons. Differences were considered statistically significant at P < 0.05. After treatment, no significant improvement in the BCVA (logMAR) of patients in the PRP group was observed. The BCVA (log MAR) decreased from 0.72 ± 0.17 and 0.74 ± 0.17 to 0.50 ± 0.13 and 0.53 ± 0.17 in PRP with aflibercept 5+PRN and PRP with aflibercept 3+PRN groups, respectively, with a statistically significant difference compared to those in the PRP group (P<0.05 in all cases). However, no statistically significant difference was observed between the combined treatment groups (P>0.05). The CFT in the PRP-only group decreased slightly from 361.80 ± 36.70 μm to 353.86 ± 40.88 μm, with no statistically significant difference (P>0.05), whereas the CFT in the aflibercept 5+PRN with PRP and aflibercept 3+PRN with PRP groups decreased from 356.57 ± 37.57 μm and 358.17 ± 44.66 μm to 284.87 ± 31.52 μm and 303.19 ± 37.00 μm, respectively, with statistically significant differences before and after treatment (P<0.05 for both groups). Statistically significant differences were observed in CFT between the three groups after treatment (P<0.05 in all cases). The number of MA (pcs) in the PRP, aflibercept 5+PRN with PRP, and aflibercept 3+PRN with PRP groups decreased from 118.34 ± 27.96, 118.60 ± 33.34, and 116.59 ± 28.95 to 92.95 ± 29.04, 44.60 ± 20.73, and 54.26 ± 25.43, respectively. The two-way comparison of the three groups revealed statistically significant differences in MA (P<0.05 in all cases). In the three groups, NV decreased from 1.00 ± 0.21 mm², 1.01 ± 0.18 mm², and 0.98 ± 0.20 mm² before treatment to 0.49 ± 0.17 mm², 0.31 ± 0.16 mm², and 0.38 ± 0.14 mm², respectively, with statistically significant differences (P<0.05 in all cases). After 12 months of treatment, 13, 18, and 18 patients had reduced HE area in the PRP-only, aflibercept 5+PRN with PRP, and aflibercept 3+PRN with PRP groups, respectively, with statistically significant differences (P<0.05 in all cases). After 12 months of treatment, vascular endothelial growth factor, monocyte chemoattractant protein-1, and glial fibrilliary acidic protein levels (pg/mL) in the aqueous humor decreased in both combined treatment groups compared with that at baseline, with statistically significant differences; however, no significant difference was observed between the two combined treatment groups (P>0.05). Aflibercept 5+PRN combined with PRP was safe and effective in treating patients with high-risk PDR and DME, and was more effective than PRP-only and aflibercept 3+PRN with PRP in improving CFT and MA.

(154) Safety and Efficacy of Platelet-rich Plasma Injection for the Treatment of Erectile Dysfunction; A Randomized Prospective Study

Abstract Introduction Platelet-rich plasma (PRP) intracorporeal injection is one of the popular regenerative therapies that has been gaining much interest in recent years as an adjunct or alternative treatment for erectile dysfunction (ED). Nevertheless, scientific evidence to support its clinical efficacy remains controversial. Objective The aim of this study was to evaluate the safety and efficacy of PRP injections for the treatment of ED. Methods A prospective, randomized, double-blinded, placebo-controlled, interventional clinical study was conducted on 52 subjects. Patients were randomized into two groups: the PRP group (n=26) and the placebo (saline) group (n=26). Each participant received three sessions (at two-week intervals) of PRP or saline injections according to his assigned group. International index of erectile function-5 (IIEF-5) scores and safety-related observations were collected during the 1st, 3rd, and 6th months of follow-up. Results The median age and ED duration were statistically comparable for both groups, 52.2 versus 52.5 years and 12.87 versus 11.8, respectively (P = 0.285). With regards to the efficacy of PRP, there were no statistically significant differences between both groups after 1, 3, and 6 months of treatment. After 1 month of treatment, the mean IIEF-5 score for the PRP group was 16.12 ± 1.25 versus 15.99 ± 1.21 for the placebo group (P = 0.683). After 3 months, the IIEF-5 score for the PRP group was 16.44 ± 1.17 compared to 16.31 ± 1.06 for the placebo group (P = 0.653). Also after 6 months, the IIEF-5 score for the PRP group was 16.35 ± 1.45 close to 16.23 ± 1.19 for the placebo group (P = 0.727). No transient hemorrhagic adverse events (hematuria, local petechial bleeding, or ecchymosis) or other side effects were reported during the injection and follow-up period for both groups. Conclusions The results of this trial suggest that although the treatment of ED with 3 injections of intracavernosal PRP separated by two-week intervals may be safe, it is not more effective than a placebo injection. Disclosure No.

EFFECTIVENESS OF ULTRASOUND GUIDED PLATELET RICH PLASMA INJECTION IN COMPARISON WITH EXTRACORPOREAL SHOCK WAVE THERAPY ON IMPROVING PAIN AND FUNCTION IN PATELLAR TENDINOPATHY: A RANDOMIZED CONTROLLED TRIAL

Background: Patellar Tendinopathy is an insertional tendinopathy of the extensor apparatus of the knee that affect athletes practicing several sports at every level of participation but is found mainly in elite athletes involved in jumping activities. The characteristic complaint is an anterior knee pain with insidious onset, localized in the involved area. Diagnosis is clinical and is typically based on medical history and clinical findings. Many methods to treat Patellar Tendinopathy have been evaluated, and there is no true consensus on the most efficacious treatment strategy. Objectives: To determine the effectiveness of ultrasound guided platelet rich plasma injection in comparison with extracorporeal shock wave therapy on improving pain and function among athletes with Patellar Tendinopathy. Study Design: Randomized controlled trial Methods: Forty-four athletes with patellar tendinopathy meeting the inclusion and exclusion criteria were selected for this study and randomized into 2 treatment groups: autologous PRP injections under ultrasound guidance (PRP group n = 22), and 3 sessions of focused extracorporeal shock wave therapy (ESWT group n = 22). The outcome measures were Victorian Institute of Sports Assessment–Patella (VISA-P) questionnaire and pain visual analog scale (VAS). For descriptive statistics mean, standard deviation and frequency were used. Continuous variables were analysed by students t-test. Categorical variables were analysed using Chi-square test. Within the group comparison (baseline and follow-up data of each group) was done by Repeated measures ANOVA. Between the groups comparison was analysed using students t-test. A p-value &lt;0.05 was taken as significant. Results: The 2 groups were homogeneous in terms of their baseline characteristics like age, gender, duration of symptoms and side of affection. Within group comparison showed statistically significant improvement in VISA-P score and reduction in VAS from baseline at all follow ups (p=0.00) in the PRP group. While in the ESWT group, maximum improvement was seen from baseline to 1st follow up at 4 weeks (p = 0.01). However subsequent follow up showed reduction in VISA-P Scores and increased VAS but remained above the baseline values and it was statistically significant (p &lt; 0.05) (Table III). Conclusion: Ultrasound guided injection of platelet rich plasma lead to significant improvement in pain and function over the long term in comparison with focused ESWT in the treatment of patellar tendinopathy in athletes and thereby enabling faster return to sports.

#340 : Autologous Platelet-Rich Plasma (PRP) Treatment for Thin Endometrium in Yasmin IVF Clinic RSCM

Background and Aims: PRP is a biological product defined as a portion of the plasma fraction of autologous blood with a platelet concentration above the baseline. PRP is one of the trends in regenerative medicine and also being used in reproductive medicine area, one of which is to treat thin endometrial problems by infused intrauterine. The goal of this treatment is to reach suitable endometrial thickness by enhancing proliferation of endometrial cells. A good and receptive endometrium is necessary to achieve successful embryo implantation, both in natural pregnancy and assisted reproductive technology. This study aimed to analyze the outcome of PRP treatment during 2022 in Yasmin IVF Clinic RSCM. Method: This is a retrospective study which collected PRP service data during 2022 in Yasmin IVF Clinic RSCM. 76 subjects underwent PRP intrauterine infusion with thin endometrium indication ([Formula: see text]6 mm). Subjects were then categorized into two groups, first only underwent PRP procedure once and another group underwent intrauterine PRP procedure two times. Subjects underwent intrauterine PRP procedure more than two times were excluded from this study. All data were then statistically analyzed. Results: 76 subjects underwent intrauterine PRP infusion in Yasmin IVF Clinic RSCM during 2022. All subjects were diagnosed with thin endometrium ([Formula: see text]6 mm). Only 23 subjects underwent one intrauterine PRP procedure based on endometrial thickness assessment. The rest of the subjects, 53 patients underwent intrauterine PRP infusion two times. After PRP infusion, the endometrium thickness in PRP group was 8.37 ±0.22 mm, which was significantly thicker than that in control group (6.05 ±0.23 mm) (P [Formula: see text]0.05). However, implantation rate and clinical pregnancy rate in PRP group were not significantly higher than those in control group (28% vs 9%; 37% vs 20%; P [Formula: see text]0.05; respectively). Conclusion: Intrauterine PRP infusion seemed to be a good option in facing thin endometrium diagnosis. It is able to enhance endometrial thickness. However, the result of clinical pregnancy still needs to be improved.

Ultrasound-guided platelet-rich plasma injection versus steroids injection for pain relief in partial rotator cuff tears

ABSTRACT Background Platelet-rich plasma injection has become an effective treatment for partial rotator cuff tears. This study evaluates the efficacy of PRP versus steroids injection in pain relief for partial rotator cuff tears. Study design Prospective clinical trial. Setting Alexandria Main University Hospital. Patients and methods Sixty patients with symptomatic partial RCTs undergoing US-guided subacromial injection were randomly allocated into two equal groups: either steroids or PRP. Pain score, shoulder function, failure rate after injection, and complications were recorded. Results VAS score was significantly lower in the steroid group at week 2 follow-up than the PRP group (p 0.001). However, it was shorter, extended for 8 weeks in steroid in comparison to 4 months in PRP group. There was an insignificant difference among groups in the simple shoulder test at 2 and 4 weeks follow-up, and the test was significantly higher in PRP group at 6, 8, 12 weeks, and 4 month follow-up (P = 0.049, 0.001, 0.001, 0.001). Pain did not improve in six patients in steroid group and one patient in PRP group. Pain on injection was reported by six patients in the steroid group and 13 patients in PRP group (p = 0.052). Elevated blood sugar was significantly higher in the steroid group after the injection (p 0.001). Conclusion Subacromial PRP injection may have a prolonged analgesic effect and superior shoulder functional improvement than steroids in patients with partial RCTs.