Clinical effectiveness of bulking agent hyaluronic acid/dextranomer (Urodex)

2011 ◽  
Vol 71 (10) ◽  
Author(s):  
I Apolikhina ◽  
A Saidova
Author(s):  
Hong Chen ◽  
Pan Wu ◽  
Hong Xu ◽  
Changchun Wang

Vesicoureteral reflux (VUR) is one of the most common congenital anomalies in the kidney and the urinary tract. Endoscopic subureteral injection of a bulking agent has become popular in VUR treatment due to its high success rates, few complications, and a straightforward procedure. In this study, a novel magnetic bulking agent was prepared by embedding Fe3O4 magnetic nanoparticles in cross-linked agarose microspheres with diameters of 80–250 μm and dispersing the magnetic microspheres in a hyaluronic acid hydrogel. The bulking agent has good biocompatibility and biosecurity validated by the tests of cytotoxicity, in vitro genotoxicity, animal irritation, skin sensitization, acute systemic toxicity, and pathological analysis after the injection of the bulking agent extract solution into healthy mice as well as injection of the bulking agent into VUR rabbits. The VUR rabbits were created by incising the roof of the intravesical ureter to enlarge the ureteral orifice. The success rate of the bulking agent in treating VUR rabbits using a subureteral transurethral injection technique was 67% (4/6) or 80% (4/5, excluding the unfinished rabbit), and no migrated particles were found in the organs of the rabbits. The transverse relaxation rate of the bulking agent was 104 mM−1s−1. After injection, the bulking agent was long-term trackable through magnetic resonance imaging that can help clinicians to inspect the VUR treatment effect. For the first time, this study demonstrates that the bulking agent with a long-term stable tracer is promising for endoscopic VUR treatment.


Author(s):  
О.А. Каплунов ◽  
К.О. Каплунов

В статье рассматриваются вопросы обоснованности и эффективности применения препарата замедленного действия (SYSADOA) при лечении больных с клинически выраженными стадиями остеоартрита коленного сустава (II-III степени по классификации Келлгрена–Лоуренса), развившимися в различном возрасте при различных коморбидных обстоятельствах. Целью исследования было оценить эффект применения Алфлутопа в составе комплексной терапии в отношении функционального статуса пораженного сустава на 4-й неделе наблюдения. В первом случае анамнестически установлено, что у больного двумя годами ранее имела место аллергическая реакция немедленного типа на повторное внутрисуставное введение дериватов гиалуроновой кислоты (ГК), а глюкокортикостероиды (ГКС) невозможно было применять ввиду риска рецидива остеомиелита. Во втором случае у пожилого мужчины с тяжелой соматической патологией (сахарный диабет 1 типа, бронхиальная астма) была диагностирована клинически выраженная стадия гонартрита (III степень по Келлгрену– Лоуренсу), применению хондропротектора предшествовали три двухнедельных курса консервативной терапии с применением дериватов ГК в комбинации с внутрисуставными ГКС, при этом значимой динамики добиться не удавалось. Наконец, в третьем случае женщине с посттравматическим гнойным гонартритом в анамнезе была противопоказана инъекционная форма ГКС, а по социально-экономическим причинам не было возможности использовать гиалуронаты. С учетом этих обстоятельств во всех рассматриваемых ситуациях использовалась комбинация НПВП + препарат замедленного действия (SYSADOA) (на старте – внутрисуставно, затем внутримышечно). В результате изучения клинической эффективности предложенной схемы терапии у пациентов с наличием артритического компонента заболевания были установлены позитивные результаты медикаментозной терапии: к концу курса терапии амплитуда движений и выраженность болевого синдрома продемонстрировали более значимые позитивные изменения, чем лабораторные данные. Учитывая невозможность применения дериватов ГК, а также ГКС, использование SYSADOA в сложных с точки зрения коморбидности случаях является ведущим компонентом эффективной комплексной консервативной терапии остеоартрита коленного сустава. The article discusses the validity and the effectiveness of the use of symptomatic slow-acting drugs for osteoarthritis (SYSADOA) in the treatment of patients with clinically pronounced stages of knee osteoarthritis (II-III degrees according to the Kellgren–Lawrence classification), developed at different ages under different comorbid circumstances. The aim of the study was to evaluate the effect of the use of Alflutop as part of complex therapy in relation to the functional status of the affected joint at the 4th week of the follow-up. In the first case, it was anamnestically established that the patient had an immediate allergic reaction to repeated intra-articular administration of hyaluronic acid derivatives two years earlier, and GCS (glucocorticosteroids) could not be used due to the risk of recurrence of osteomyelitis. In the second case, an elderly man with severe somatic pathology (type 1 diabetes, bronchial asthma) was diagnosed with a clinically pronounced stage of gonarthritis (grade III according to Kellgren–Lawrence), the use of SYSADOA was preceded by 3 two-week courses of conservative therapy using hyaluronic acid derivatives in combination with intra-articular corticosteroids, while significant results could not be achieved. Finally, in the third case, a man with a history of idiopathic purulent gonarthritis was contraindicated to the injectable forms of GCS, and for socio-economic reasons it was not possible to use hyaluronates. Considering these circumstances, the combination of NSAIDs + SYSADOA was used in all the above mentioned cases (at the start – intra-articular, then intramuscularly). As a result of studying the clinical effectiveness of the proposed therapy regimen in patients with the presence of an arthritic component of the disease, positive results of the drug therapy were established: by the end of the course of therapy, the amplitude of movements and the severity of the pain syndrome showed more significant positive changes vs laboratory parameters. Given the impossibility of using derivatives of HA, as well as GCS, the use of a SYSADOA in our comorbid cases is the only possible component of an effective complex conservative therapy for knee osteoarthritis.


Medicina ◽  
2021 ◽  
Vol 57 (3) ◽  
pp. 232
Author(s):  
Michelangelo Palco ◽  
Domenico Fenga ◽  
Giorgio Carmelo Basile ◽  
Paolo Rizzo ◽  
Bruno Cavalieri ◽  
...  

Background and objectives: Knee osteoarthritis (KO) is one of the most common joint diseases, determining knee pain and reduction of mobility, with a negative effect on quality of life. Intra-articular injections of different formulations of platelet-rich plasma (PRP) are an increasingly common non-surgical treatment for KO. Recently, in order to combine the anti-inflammatory effect of platelet rich plasma and the viscosupplementation effect of hyaluronic acid, a formulation of PRP combined with hyaluronic acid (PRP + HA) has been proposed. The purpose of this study is to retrospectively compare the effectiveness of plasma with high concentration of platelets and leukocytes (L-PRP) with PRP + HA in patients with mild to moderate (Kellgren–Lawrence scale II-III grade) KO. Materials and Methods: Among the 51 patients included, 28 have been treated with L-PRP, while 23 with PRP + HA. A retrospective evaluation at baseline (T0), after 3 months (T1) and 1 year (T2) has been performed. The outcome analyzed are the Knee Society Score (KSS), the Visuo Analogic Scale (VAS) (at T0, T1, and T2) and the Knee Injury and Osteoarthritis Outcome Score (KOOS) (T0 and T2). We evaluated change in mean scores within and between groups among different time points using repeated measures ANCOVA. Results: Although the two treatments have been both effective in reducing VAS, the group treated with PRP + HA showed a significantly lower KSS. Conclusions: Our results show that the use of both treatments may help to reduce pain in patients with mild to moderate KO. PRP + HA showed better results in improving knee mobility and function. These results should be considered only preliminary: Further research is needed to completely describe the clinical effectiveness of these formulations.


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