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Chronic pain is a prevalent condition that negatively affects patients' quality of life. Implantable neurostimulation therapies have been proposed as a treatment option for chronic pain. However, real-world data on the effectiveness and safety of these therapies in Spain are scarce. This study aims to obtain real-world data on the effectiveness and safety of implantable stimulation systems for chronic pain treatment in Spain.
All Spanish hospitals that implant neurostimulation systems for pain treatment will be invited to participate in the study. Patients will be recruited before the procedure, and before providing data to the registry, the study will be explained to them, and they will sign an informed consent form. Demographic data related to the pathology and procedure will be collected. Follow-up will be conducted at six and twelve months after the procedure.
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| Measure | Description | Time Frame |
|---|---|---|
| Percentage of patients with at least 50 % pain relief in the area of their predominant pain at one year. | Percentage of patients who experience a reduction of at least 50% in the intensity of their predominant pain compared to the initial value, assessed twelve months after the implantation of the neurostimulation system. Pain intensity will be measured using an 11-point Numeric Pain Rating Scale (NPRS), with a range from 0 (no pain) to 10 (maximum pain possible) | Twelve months |
| Measure | Description | Time Frame |
|---|---|---|
| Percentage of patients with at least 50 % pain relief in the area of their predominant pain at six months. | Percentage of patients who experience a reduction of at least 50% in the intensity of their predominant pain compared to the initial value, assessed six months after the implantation of the neurostimulation system. Pain intensity will be measured using an 11-point Numeric Pain Rating Scale (NPRS), with a range from 0 (no pain) to 10 (maximum pain possible) |
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Inclusion Criteria:
Exclusion Criteria:
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Patients with chronic refractory pain who are candidates for treatment with a implantable neurostimulation system.
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Antonio Ojeda, MD | Contact | 0034911729144 | renased@sedolor.es |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hospital FREMAP Majadahonda | Recruiting | Majadahonda | Madrid | 28221 | Spain |
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| Six months |
| Percentage of patients with at least 50 % pain relief in the area of their non-predominant pain at one year. | Percentage of patients who experience a reduction of at least 50% in the intensity of their non-predominant pain compared to the initial value, assessed six and twelve months after the implantation of the neurostimulation system. Pain intensity will be measured using an 11-point Numeric Pain Rating Scale (NPRS), with a range from 0 (no pain) to 10 (maximum pain possible) | Six and twelve months |
| Compared change from baseline on health-related quality of life scores (EQ Index) | The impact of the treatment on the patient's health-related quality of life will be evaluated using the EQ-5D-5L questionnaire at six and twelve months after implantation. The EQ-5D-5L assesses quality of life across five domains: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each domain is scored on a scale of 1 (no problems) to 5 (extreme problems), generating a 5-digit code that corresponds to the patient's health status. | Six and twelve months |
| Patient Global Impression of Improvement | Assessment of clinical global impression of improvement using the PGI-I scale at six and twelve months after implantation of the neurostimulation system. The PGI-I score ranges from 1 (Very much better) through to 7 (Very much worse). The lower the score, the better the improvement. | Six and twelve months |
| Patient Satisfaction | Percentage of implanted subjects satisfied with the treatment at six and twelve months after the implantation of the neurostimulation system. defined as indicating: "since the start of the therapy has the pain improved? yes/no", "Are you satisfied with the treatment?" yes/no or "would you agree to the treatment again?" yes/no | Six and twelve months |
| Number of Adverse Events as a Measure of Safety | Number and percentage of patients with adverse effects related to therapy at six and twelve months after implantation of the neurostimulation system. | Six and twelve months |
| Complejo Hospitalario Universitario de Cartagena | Recruiting | Cartagena | Murcia | 30203 | Spain |
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| Hospital Universitario de Navarra | Recruiting | Pamplona | Navarre | 31008 | Spain |
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| Hospital Clinic de Barcelona | Recruiting | Barcelona | 08036 | Spain |
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| Hospital de la Santa Creu i Sant Pau | Not yet recruiting | Barcelona | Spain |
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| Hospital Universitario Vall d'Hebron | Not yet recruiting | Barcelona | Spain |
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| Hospital Universitario Puerta del Mar | Not yet recruiting | Cadiz | 11009 | Spain |
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| Hospital General Universitario Gregorio Marañón | Not yet recruiting | Madrid | 28007 | Spain |
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| Hospital Universitario de La Princesa | Not yet recruiting | Madrid | 28028 | Spain |
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| Hospital Universitario Puerta de Hierro Majadahonda | Recruiting | Madrid | 28222 | Spain |
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| Hospital Regional Univeristario de Málaga | Recruiting | Málaga | 29010 | Spain |
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| Complexo Hospitalario Univeritario de Ourense | Recruiting | Ourense | 32005 | Spain |
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| Hospital Universitari Son Espases | Recruiting | Palma de Mallorca | 07120 | Spain |
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| Hospital Universitario Virgen del Rocío | Recruiting | Seville | 41013 | Spain |
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| Hospital Universitari i Politècnic La Fe | Not yet recruiting | Valencia | 46026 | Spain |
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| Complejo Hospitalario Universitario de Vigo | Not yet recruiting | Vigo | 36204 | Spain |
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| ID | Term |
|---|---|
| D059350 | Chronic Pain |
| ID | Term |
|---|---|
| D010146 | Pain |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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