Добірка наукової літератури з теми "Tibial neurostimulation"

Category: Ankle Introduction/Purpose: The bifurcation of the sciatic nerve results in the common peroneal nerve, along with the tibial nerve. A commonly block used before foot and ankle surgery is the sciatic block. This block requires an ultrasound or neurostimulation for accurate placement and can take time to administer effectively. We believe that the common peroneal, or high fibular nerve block, may be equivalent in some clinical circumstances to the sciatic block and does not require additional imaging for accurate placement. Methods: In this study, a mixture comprised of 5 mL 0.5% bupivacaine and 5 mL 1% lidocaine was used for each patient. Certain surface anatomic landmarks were used to place the block without ultrasound or neurostimulation. The time spent administering the block was recorded. Patients were not given pain medicines in the recovery unit unless the block did not work. A follow-up questionnaire was completed within 24 hours following surgery, and this was used to assess aspects of the patient’s post-operative experience. These include the number of hours following surgery that the patient: 1) first felt pain, 2) first took pain medication, 3) first felt tingling, 4) fully regained feeling in his/her leg, and 5) could wiggle his/her toes. Also, any complications were recorded. Results: This study involved 21 patients with an average age of 51. The most common procedures used with the block were hardware removal of the fibula and open reduction internal fixation of the fibula. The block took on average less than 3 minutes to administer and ultrasound was not used in any cases. No patients were given pain medicines in the recovery unit. None of the patients reported any complications, specifically, there were no cases of foot drop or any persistent paresthesias. The average time it took for patients to first feel pain after the block was approximately 8 hours. On average, patients first took pain medication approximately 11 hours after surgery, and regained sensation in their leg 15 hours after surgery. Conclusion: The benefits of the common peroneal block are multifold, as their clinical outcomes were positive and patients did not experience any complications. Also, from a surgeon perspective, the block is quick to administer and does not require ultrasound or neurostimulation.

Introduction. Neuromodulation has proven itself in the treatment of patients suffering from idiopathic overactive bladder and non-obstructive urinary retention, who are resistant to conservative therapy. The possible use of the method in the population of patients with neurogenic lower urinary tract dysfunction (NLUTD) is of undoubted clinical interest.Objective. To analyze the current possibilities and features of neuromodulation in a cohort of patients with NLUTD.Materials and methods. Original research materials published in the PubMed, eLibrary, SciVerse (ScienceDirect), Scopus, Medline, EMBASE databases, websites of professional associations without restrictions on the date of publication were used. Sixty sources were selected for citation, with preference given to systematic reviews, meta-analyses and RCTs .Results. In relation to NLUTD, transcranial and peripheral magnetic stimulation, intravesical electrical stimulation, tibial, pudendal electrical stimulation, and stimulation of the dorsal pudendal nerve, as well as sacral and epidural methods of neurostimulation are considered.Conclusion. The current literature optimistically presents the experience of using neuromodulation in the NLUTD patient population with the largest evidence base for invasive sacral and tibial stimulation. The studies are based on heterogeneous populations, limited by small sample sizes with insufficient descriptive part of the degree and severity of neurological diseases, and it should be considered when forming guidelines. However, the lack of other suitable therapies and promising initial results indicate the importance of further efforts to improve the applied methods of neuromodulation. Further studies are needed with larger sample sizes, better classification of diseases, and controlled study design

The present study investigated the effect of trans-spinal direct current (tsDC) on the firing rate, pattern, and amplitude of spontaneous activity of the tibial nerve and on the magnitude of cortically elicited triceps surae (TS) muscle contractions. The effect of combined tsDC and repetitive cortical electrical stimulation (rCES) on the amplitude of cortically elicited TS twitches was also investigated. Stimulation was applied by two disk electrodes (0.79 cm2): one was located subcutaneously over the vertebral column (T10–L1) and was used to deliver anodal DC (a-tsDC) or cathodal DC (c-tsDC) (density range: ± 0.64 to ± 38.2 A/m2), whereas the other was located subcutaneously on the lateral aspect of the abdomen and served as a reference. While the application of a-tsDC significantly increased the spike frequency and amplitude of spontaneous discharges compared with c-tsDC, c-tsDC made the spontaneous discharges more rhythmic. Cortically elicited TS twitches were depressed during a-tsDC and potentiated after termination. Conversely, cortically elicited TS twitches were enhanced during c-tsDC and depressed after termination. While combined a-tsDC and rCES produced similar effects as a-tsDC alone, combined c-tsDC and rCES showed the greatest increase in cortically elicited TS twitches. tsDC appears to be a powerful neurostimulation tool that can differentially modulate spinal cord excitability and corticospinal transmission.

Même s'il correspond à l'alternance entre une phase de remplissage et une phase de vidange de la vessie, le cycle mictionnel ne peut se résumer à une opération binaire mais implique bien la prise en compte constante de multiples facteurs : le niveau de remplissage du réservoir vésical, la sécurité de l'environnement dans lequel nous vivons, le contexte émotionnel dans lequel nous évoluons et les contraintes sociales auxquelles nous sommes soumis.On sait aujourd'hui qu'il existe des altérations et/ou des modifications de l'activité et de la connectivité cérébrales, ainsi que des changements dans la régulation du système nerveux autonome (SNA), dans certains types de troubles vésico-sphinctériens- notamment dans l'hyperactivité vésicale ou l'incontinence urinaire par urgenturie et dans certains types de troubles de la vidange vésicale.Parmi les thérapies disponibles aujourd'hui, les thérapies de modulation/stimulation électrique (neurostimulation tibiale et neuromodulation sacrée) semblent capables de normaliser et/ou de modifier l'activité et la connectivité cérébrales,ainsi que l'équilibre du SNA. Elles pourraient donc apporter, au moins, une réponse partielle à certaines des étiopathogénies sous-jacentes à ces troubles vésico-sphinctériens.Cependant, le déploiement et le positionnement de ces thérapies de modulation/stimulation électrique sont encore limités par une compréhension incomplète de leurs mécanismes d'action, une identification imparfaite des indications et des populations les plus susceptibles de bénéficier de ces thérapies, un manque de consensus sur le réglage du courant électrique délivré, et un manque d'évaluation à moyen et long terme.Dans la première partie, nous nous sommes interrogés sur les indications de ces thérapies, et notamment sur leur place dans l'approche préventive des dysfonctionnements vésico-sphinctériens secondaires à une lésion médullaire. Nous nous sommes également interrogés sur la relation, en termes d'efficacité, entre la neurostimulation tibiale transcutanée et la neuromodulation sacrée, afin de mieux soutenir les patients dans le processus de décision médicale partagée. Enfin, nousavons mis au point le premier outil permettant de prédire le succès de la neuromodulation sacrée en tant que traitement du trouble de la vidange vésicale.Dans la deuxième partie, nous nous sommes interrogés sur les mécanismes d'action, et plus particulièrement sur les changements dans l'équilibre du SNA en réponse à une stimulation aiguë de la racine sacrée.Dans la troisième partie, nous nous sommes interrogés sur le suivi à moyen terme (5 ans) après l'implantation définitive de la neuromodulation sacrée dans un bassin de population géographique, en recherchant les facteurs de risque d'abandon du suivi. Ces données, bien que devant encore être complétées par de futurs projets de recherche, nous permettront d'optimiser davantage les thérapies de modulation/stimulation électrique dans la prise en charge des troubles vésico-sphinctériens neurogènes et non neurogènes
Even if it involves alternating between a filling phase and an emptying phase, the normal micturition cycle cannot be summed up as a binary operation but involves the constant consideration of multiple factors: the filling level of the bladder reservoir, the safety of the environment in which we live, the emotional context in which we evolve and the social constraints to which we are subjected.We now know that there are alterations and/or modifications in brain activity and connectivity, as well as changes in the regulation of the autonomic nervous system, in certain types of lower urinary tract dysfunction - notably in overactive bladder or urge urinary incontinence and in certain types of voiding dysfunctions. Among the therapies available today, electrical modulation/stimulation therapies (tibial neurostimulation and sacral neuromodulation) appear able to normalize and/or modify brain activity and connectivity, as well as ANS balance. They could thus provide at least a partial response to some of the etiopathogenies underlying these lower urinary tract dysfunctions. However, the deployment and positioning of these electrical modulation/stimulation therapies are still limited by an incomplete understanding of their mechanisms of action, imperfect identification of the indications and populations most likely to benefit from these therapies, a lack of consensus on the setting of the electrical current delivered, and a lack of medium and long-term evaluation. In the first part, we questioned the indications for these therapies, and particularly their place as a preventive approach for lower urinary tract dysfunctions due to spinal cord injury. We also questioned the relation, in terms of efficacy, between transcutaneous tibial neurostimulation and sacral neuromodulation, to better support patients in shared medical decision-making processe. Finally, we developed the first tool to predict the success of sacral neuromodulation as a treatment for voiding dysfunction. In the second part, we questioned the mechanisms of action, and more specifically the changes in the balance of the autonomic nervous system in response to an acute S3 sacral root stimulation.In the third part, we questioned the mid-term follow-up (5 years) after definitive implantation of sacral neuromodulation in a geographic population pool, looking for risk factors for discontinuation of follow-up. These data, although still to be supplemented by future research projects, will enable us to further optimize electrical modulation/stimulation therapies in the management of neurogenic and non-neurogenic lower urinary tract dysfunctions

Head trauma is a traumatic injury to the skull and, when it reaches the brain, it can produce bleeding and clots. Depending on the severity of the trauma, it can generate physical sequelae and behavioral changes, which may appear soon after the trauma or in the medium term.PURPOSE: to verify the effects of electrical stimulation (NMES) and exercise in post-traumatic brain injury patients. A non-systematic review was performed based on randomized clinical trials in the PEDro and PubMed databases, published between 2009 and 2020. The articles with the highest score in the PEDro score were selected. The following keywords were used: traumatic brain injury. Six studies were selected. In one RCT, NMES induced reductions in chronaxis in the tibialis anterior, with a 1.5-day reduction in MV. An RCT, high-frequency or low-frequency NMES equally improved balance, dynamic gait and sleep quality, falls and headache frequency. In home patients, exercise increased functional reach testing and reduced Time Up and Go time. NMES improved post-void residual urine volume, void volume, maximum urinary flow rate, and Barthel Index scores after 8 weeks. Continuous cardiovascular reconditioning and moderate intensity improved cardiovascular fitness. There was no difference between groups in psychosocial functioning in either group. Rehabilitation of 4 h/day for 5 days/week improved functional independence. Intensive rehabilitation improves the early functional outcome of patients with TBI, but it must be continuous. Neurostimulation and exercise achieved significant improvements in strength, balance and gait, with different types of intervention in patients with head trauma. There is also an improvement in the cardiovascular response.