The Clinical journal of pain
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Those in professions treating pain must prepare to justify the cost-effectiveness of the treatments they supply. Attempts have been made to define cost-effectiveness. Is it the lowest possible cost? The return of the patient to work and other daily activities? Pain clinics must develop good working relationships with business providers; establish credibility; plan, communicate, evaluate results scientifically; and educate the public.
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This study examined profiles of self-reported depressive symptoms in chronic pain patients (n = 51), family practice outpatients (n = 52), and controls (n = 53) who were receiving neither psychological nor medical treatment and were pain free. Subjects in the three groups were matched for age and sex. ⋯ Chronic pain and family practice groups had similar SMDI profiles, with significant elevations on Low Energy, Pessimism, Sad Mood, and Low Self-Esteem subscales compared with controls. Although both groups of medical patients were depressed compared with control subjects, their SMDI profiles were different from those previously reported for psychiatric inpatients with a diagnosis of depression.
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A reliable, safe approach to achieving unilateral anesthesia in multiple contiguous thoracic dermatomes would be of great benefit to anesthesiologists in the acute and chronic pain setting. The multidermatomal intercostal technique is one such approach, although the anatomical mechanism of this nerve block is a matter of debate. At our pain clinic, we have used another technique, a modification of the paravertebral block, to achieve multiple segments of unilateral sensory blockade. ⋯ In order to clarify the mechanism of bilateral blockade resulting from a unilateral technique, we injected four fresh cadavers with colored latex solution using the paravertebral-peridural approach. This revealed spread of the latex across the midline prevertebrally to the contralateral paravertebral space. We conclude that the paravertebral-peridural thoracic block is a reliable, safe technique for achieving unilateral anesthesia over multiple dermatomes with a single injection.
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Chronic pain can be described as a syndrome or process of decompensation not unlike any other chronic disease or illness. As such, chronic pain patients are often difficult to work with because of the pervasive personal, social, emotional, and physical impact of the syndrome on their lives and the lives of their families. ⋯ This curve now in use at our institution describes both the progression and the recovery of the illness. The pain curve is used as an educational tool to aid patients in addressing important recovery issues such as denial and the disease process, the progression of symptoms in a chronic illness, medication and alcohol use and abuse in the management of chronic pain, the impact on and from the family and the importance of peer support.
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Forty patients (ASA status I-III) recovering from major orthopedic or gynecological operations were investigated to evaluate analgesic efficacy and threshold concentrations of tramadol and its main metabolite O-demethyltramadol (M1) in serum during the early postoperative period, using patient-controlled analgesia (PCA) by means of the Abbott Lifecare Infuser. Following an individualized intravenous loading dose of 97.5 +/- 42.3 mg (mean, SD), tramadol demand doses were 20 mg with a limit of 500 mg within 4 h; the lockout time was set to 5 min. The duration of PCA was 20.5 +/- 4.8 h. ⋯ Minimum effective tramadol serum concentration (MEC) varied greatly and could be best described by a log-normal distribution (range 20.2-986.3 ng/ml, median 287.7 ng/ml). Intraindividual MEC variability was lower than intersubject variability (38.2 vs 59.1%). Median M1 concentrations were 36.2 ng/ml.