Pain practice : the official journal of World Institute of Pain
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Review
Clinical research in interventional pain management techniques: an epidemiologist/trialist's view.
In contrast to drug therapy, interventional pain therapies involve a complex "interaction" between the clinician ("the operator"), the clinical procedure and medical device/equipment. An appreciation of this interaction is fundamental to the understanding of the challenges of designing clinical trials for interventional procedures in chronic pain. This article overviews the evolving evidence requirements of healthcare policy makers and payers, discusses the specific challenges of designing clinical trials of interventional procedures, and outlines some potential clinical trial design solutions to these challenges.
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Acute pain is reported as a presenting symptom in over 80% of physician visits. Chronic pain affects an estimated 76.2 million Americans--more than diabetes, heart disease, and cancer combined. It has been estimated to be undertreated in up to 80% of patients in some settings. ⋯ The numeric pain scale certainly has a place in care and in pain management; however, it is important to assess the patient's communication and self-management style and to recognize that patients, like pain, are on a continuum with varied styles of communication and adaptation. It is easy to get lost in the process, even when the process is initiated with the best of intentions. In the quest for individualized medicine, it might be best to keep pain assessment in the individualization arena.
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National survey data indicate that more than 25% of American adults suffer from pain that lasts for more than 24 hours in duration. Chronic pain can have a devastating impact on an individual's relationships, daily functioning, and employment. ⋯ Many clinicians feel that managing side effects, identifying and managing potential drug abusers, and navigating regulatory and legal issues can make pain management a complicated undertaking. This review discusses key patient assessment and treatment strategy tools, together with common medico-legal concerns to assist clinicians in more effectively managing their patients' pain.
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The growing emphasis on evidence-based medicine dictates that reliable, evidence-based outcomes be utilized in documenting response to treatment, as well as determining the treatment efficacy and cost-effectiveness of different treatment modalities. The biopsychosocial model conceptualizes pain as a complex multifactorial interaction of biological, psychological, and social components that play a role in the development, exacerbation, and perpetuation of pain. As a result, outcomes relevant to pain management are necessarily complex and multifactorial in nature. ⋯ Patient-reported outcomes are discussed within the context of pain measures, health-related quality of life, and psychological constructs. Objective outcomes are discussed within the context of healthcare utilization and occupational status. The discussion within each section highlights the unique constructs measured by each category of outcome measure and highlights their consistency with current evidence-based guidelines and knowledge from pain research.
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Chronic pain is a debilitating condition with a multidimensional impact on the lives of patients, their families and communities. The public health burden of chronic pain is gathering recognition as a major healthcare problem in its own right and deserves closer attention. The challenge in treating chronic pain is to provide effective clinical management of a complex, multifaceted set of conditions that require a coordinated strategy of care. ⋯ I. N. Management is a clinician education program providing up-to-date training in pain management.