lunes, 12 de febrero de 2018

Dolor postoperatorio / Postoperative pain

Febrero 5, 2018. No. 2985
Nuevos enfoques en el tratamiento del dolor agudo postoperatorio
N. Esteve Pérez , C. Sansaloni Perelló , M. Verd Rodríguez , H. Ribera Leclercy C. Mora Fernández
Rev. Soc. Esp. del Dolor, Vol. 24, N.º 3, Mayo-Junio 2017
Aspectos básicos del dolor postoperatorio y la analgesia multimodal preventiva
Dr. Jorge Rosa-Díaz, Dr. Víctor Navarrete-Zuazo, Dra. Miosotis Díaz-Mendiondo
Revista Mexicana de Anestesiología Volumen 37, No. 1, enero-marzo 2014
Avances recientes en el manejo del dolor agudo: comprensión de los mecanismos del dolor agudo, la prescripción de opiáceos y el papel de la terapia del dolor multimodal.
Recent advances in acute pain management: understanding the mechanisms of acute pain, the prescription of opioids, and the role of multimodal pain therapy.
F1000Res. 2017 Nov 29;6:2065. doi: 10.12688/f1000research.12286.1. eCollection 2017.
Abstract
In this review, we discuss advances in acute pain management, including the recent report of the joint American Pain Society and American Academy of Pain Medicine task force on the classification of acute pain, the role of psychosocial factors, multimodal pain management, new non-opioid therapy, and the effect of the "opioid epidemic". In this regard, we propose that a fundamental principle in acute pain managementis identifying patients who are most at risk and providing an "opioid free anesthesia and postoperative analgesia". This can be achieved by using a multimodal approach that includes regional anesthesia and minimizing the dose and the duration of opioid prescription. This allows prescribing medications that work through different mechanisms. We shall also look at the recent pharmacologic and treatment advances made in acute pain and regional anesthesia.
KEYWORDS: acute pain; multimodal therapy; pharmacogenetics; psychosocial factors
Safe Anaesthesia Worldwide
Delivering safe anaesthesia to the world's poorest people
World Congress on Regional Anesthesia & Pain Medicine
April 19-21, 2018, New York City, USA
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Anestesiología y Medicina del Dolor

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Opioides en dolor crónico / Opioids in chronic pain

Febrero 6, 2018. No. 2986
Prescripción responsable, segura y efectiva de opiáceos para el dolor crónico no relacionado con el cáncer: guías de la American Society of Interventional Pain Physicians (ASIPP).
Responsible, Safe, and Effective Prescription of Opioids for Chronic Non-Cancer Pain: American Society of Interventional Pain Physicians (ASIPP) Guidelines.
Pain Physician. 2017 Feb;20(2S):S3-S92.
CONCLUSIONS: These guidelines were developed based on comprehensive review of the literature, consensus among the panelists, in consonance with patient preferences, shared decision-making, and practice patterns with limited evidence, based on randomized controlled trials (RCTs) to improve pain and function in chronic non-cancer pain on a long-term basis. Consequently, chronic opioid therapy should be provided only to patients with proven medical necessity and stability with improvement in pain and function, independently or in conjunction with other modalities of treatments in low doses with appropriate adherence monitoring and understanding of adverse events.Key words: Chronic pain, persistent pain, non-cancer pain, controlled substances, substance abuse, prescription drug abuse, dependency, opioids, prescription monitoring, drug testing, adherence monitoring, diversionDisclaimer: The guidelines are based on the best available evidence and do not constitute inflexible treatment recommendations. Due to the changing body of evidence, this document is not intended to be a "standard of care."
Guías de los CDC para la prescripción de opiáceos para el dolor crónico - Estados Unidos, 2016.
CDC Guideline for Prescribing Opioids for Chronic Pain--United States, 2016.
JAMA. 2016 Apr 19;315(15):1624-45. doi: 10.1001/jama.2016.1464.
Abstract
IMPORTANCE:Primary care clinicians find managing chronic pain challenging. Evidence of long-term efficacy of opioids for chronic pain is limited. Opioid use is associated with serious risks, including opioid use disorder and overdose. OBJECTIVE: To provide recommendations about opioid prescribing for primary care clinicians treating adult patients with chronic pain outside of active cancer treatment, palliative care, and end-of-life care. PROCESS: The Centers for Disease Control and Prevention (CDC) updated a 2014 systematic review on effectiveness and risks of opioidsand conducted a supplemental review on benefits and harms, values and preferences, and costs. CDC used the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) framework to assess evidence type and determine the recommendation category. EVIDENCE SYNTHESIS: Evidence consisted of observational studies or randomized clinical trials with notable limitations, characterized as low quality using GRADE methodology. Meta-analysis was not attempted due to the limited number of studies, variability in study designs and clinical heterogeneity, and methodological shortcomings of studies. No study evaluated long-term (≥1 year) benefit of opioids for chronic pain. Opioids were associated with increased risks, including opioid use disorder, overdose, and death, with dose-dependent effects. RECOMMENDATIONS: There are 12 recommendations. Of primary importance, nonopioid therapy is preferred for treatment of chronic pain. Opioids should be used only when benefits for pain and function are expected to outweigh risks. Before starting opioids, clinicians should establish treatment goals with patients and consider how opioids will be discontinued if benefits do not outweigh risks. When opioids are used, clinicians should prescribe the lowest effective dosage, carefully reassess benefits and risks when considering increasing dosage to 50 morphine milligram equivalents or more per day, and avoid concurrent opioids and benzodiazepines whenever possible. Clinicians should evaluate benefits and harms of continued opioid therapy with patients every 3 months or more frequently and review prescription drug monitoring program data, when available, for high-risk combinations or dosages. For patients with opioid use disorder, clinicians should offer or arrange evidence-based treatment, such as medication-assisted treatment with buprenorphine or methadone. CONCLUSIONS AND RELEVANCE: The guideline is intended to improve communication about benefits and risks of opioids for chronic pain, improve safety and effectiveness of pain treatment, and reduce risks associated with long-term opioid therapy.
Safe Anaesthesia Worldwide
Delivering safe anaesthesia to the world's poorest people
World Congress on Regional Anesthesia & Pain Medicine
April 19-21, 2018, New York City, USA
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Anestesiología y Medicina del Dolor

52 664 6848905

Síndrome de dolor regional complejo / Complex regional pain syndrome,

Febrero 7, 2018. No. 2987

Síndrome de dolor regional complejo. Actualización
Complex regional pain syndrome-up-to-date.
Pain Rep. 2017 Oct 5;2(6):e624. doi: 10.1097/PR9.0000000000000624. eCollection 2017 Nov.
Abstract
Complex regional pain syndrome (CRPS) was described for the first time in the 19th century by Silas Weir Mitchell. After the exclusion of other causes, CRPS is characterised by a typical clinical constellation of pain, sensory, autonomic, motor, or trophic symptoms which can no longer be explained by the initial trauma. These symptoms spread distally and are not limited to innervation territories. If CRPS is not improved in the acute phase and becomes chronic, the visible symptoms change throughout because of the changing pathophysiology; the pain, however, remains. The diagnosis is primarily clinical, although in complex cases further technical examination mainly for exclusion of alternative diagnoses is warranted. In the initial phase, the pathophysiology is dominated by a posttraumatic inflammatory reaction by the activation of the innate and adaptive immune system. In particular, without adequate treatment, central nociceptive sensitization, reorganisation, and implicit learning processes develop, whereas the inflammation moderates. The main symptoms then include movement disorders, alternating skin temperature, sensory loss, hyperalgesia, and body perception disturbances. Psychological factors such as posttraumatic stress or pain-related fear may impact the course and the treatability of CRPS. The treatment should be ideally adjusted to the pathophysiology. Pharmacological treatment maybe particularly effective in acute stages and includes steroids, bisphosphonates, and dimethylsulfoxide cream. Common anti-neuropathic pain drugs can be recommended empirically. Intravenous long-term ketamine administration has shown efficacy in randomised controlled trials, but its repeated application is demanding and has side effects. Important components of the treatment include physio- and occupational therapy including behavioural therapy (eg, graded exposure in vivo and graded motor imaging). If psychosocial comorbidities exist, patients should be appropriately treated and supported. Invasive methods should only be used in specialised centres and in carefully evaluated cases. Considering these fundamentals, CRPS often remains a chronic paindisorder but the devastating cases should become rare.
KEYWORDS: Central reorganisation; Complex regional pain syndrome; Neuroplasticity; Posttraumatic inflammation; Treatment
Interacciones aberrantes de medidas periféricas y neurometabolitos con lípidos en el síndrome de dolor regional complejo mediante espectroscopía de resonancia magnética: un estudio piloto.
Aberrant interactions of peripheral measures and neurometabolites with lipids in complex regional pain syndrome using magnetic resonance spectroscopy: A pilot study.
Mol Pain. 2018 Jan-Dec;14:1744806917751323. doi: 10.1177/1744806917751323.
Abstract
Background The aim of this study was to assess peripheral measures and central metabolites associated with lipids using magnetic resonance spectroscopy. Results Twelve patients with complex regional pain syndrome (CRPS) and 11 healthy controls participated. Using magnetic resonance spectroscopy, we measured the levels of lipid 13a (Lip13a) and lipid 09 (Lip09) relative to total creatine (tCr) levels in the right and left thalamus. We found negative correlations of Lip13a/tCr in the right thalamus with red blood cells or neutrophils, but a positive correlation between Lip13a/tCr and lymphocytes in the controls. We found negative correlations between Lip09/tCr and peripheral pH or platelets in the controls. There were positive correlations between Lip09a/tCr and myo-inositol/tCr, between Lip13a/tCr and N-acetylaspartate (NAA)/tCr, and between Lip09/tCr and NAA/tCr in healthy controls. On the other hand, there were positive correlations between Lip13a/tCr and Lip09/tCr and urine pH in CRPS patients. There were significant correlations between Lip13a/tCr or Lip09/tCr and different peripheral measures depending on the side of the thalamus (right or left) in CRPS patients. Conclusion This is the first report indicating that abnormal interactions of Lip13a and Lip09 in the thalamus with peripheral measures and central metabolites may mediate the complexpathophysiological mechanisms underlying CRPS.
KEYWORDS: Complex regional pain syndrome; lipid 09; lipid 13a; pH; thalamus
Síndrome doloroso regional complejo: revisión
Berenice Carolina Hernández-Porras , Ricardo Plancarte-Sánchez, Silvia Alarcón-Barrios y Marcela Sámano-García
Cirugía y Cirujanos. 2017;85(4):366---374
Resumen
Antecedentes: El síndrome doloroso regional complejo se caracteriza por dolor espontáneo o inducido, desproporcionado con relación al evento inicial y que se acompana˜ de una gran variedad de alteraciones autonómicas y motoras, dando lugar a una gran variedad de presentaciones clínicas. Con frecuencia se asocia a cirugías y a traumatismos menores. Fisiopatología: Se postulan 3 mecanismos: cambios por inflamación postraumática, disfunción vasomotora periférica y cambios funcionales y estructurales del sistema nervioso central secundarios a una mala adaptación. Diagnóstico: Se realiza tomando como base los criterios de Budapest. El paciente debe presentar un síntoma de cada criterio al momento del diagnóstico: dolor continuo, desproporcionado en relación con cualquier evento desencadenante. Un signo y un síntoma: sensorial, vasomotor, edema y cambio motor / trófico. Por último, estos no se explican por otro diagnóstico o causa. Tratamiento: Se sugiere que sea multimodal. No existe un estándar de oro. En fase temprana se pueden utilizar AINE o esteroides. Se han indicado fármacos utilizados para tratamiento de dolor neuropático, pero ninguno de estos posee suficiente evidencia. Hay baja evidencia de la efectividad de que los bifosfonatos, la calcitonina, la ketamina y la terapia en espejo sean efectivos comparados con placebo. El tratamiento intervencionista debe ser escalonado de bloqueo peridural, neuroestimulación, bomba intratecal hasta las terapias experimentales en caso de dolor refractario a tratamiento. Discusión: A pesar de que el síndrome doloroso regional complejo es una entidad reconocida desde hace más de 100 anos, ˜ todavía no existe evidencia clara en las primeras elecciones terapéuticas, aunque hay nuevas tecnologías aplicables en su tratamiento.
Safe Anaesthesia Worldwide
Delivering safe anaesthesia to the world's poorest people
World Congress on Regional Anesthesia & Pain Medicine
April 19-21, 2018, New York City, USA
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Anestesiología y Medicina del Dolor

52 664 6848905