Common diagnostic and therapeutic procedures of the lumbosacral spine. The North American Spine Society's Ad Hoc Committee on Diagnostic and Therapeutic Procedures.
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In part I of this review the principles governing the uses of analgesics and sedatives in the ITU were considered. In part II we shall review the drugs available considering first, symptomatic therapy and secondly, regional analgesia.
Tomm (1988) suggests that circular and reflexive questions tend to elicit feelings of freedom/acceptance whereas lineal and strategic questions usually trigger feelings of judgment/constraint. Employing an analog methodology, each of Tomm's four questioning styles was portrayed in the form of a 5-minute videotaped intake scenario. Forty family triads with a mother, father, and adolescent son were randomly assigned to one of four experimental conditions with ten families each. Each condition involved viewing one of four questioning style scenarios. All participants (N = 120 individuals--40 mothers, 40 fathers, and 40 adolescent sons) completed the Family Therapy Alliance Scale (FTAS; Pinsof & Catherall, 1986) and a validity-check instrument. The results indicated that circular and reflexive questioning styles elicited significantly higher (p < 0.001) alliance scores on the FTAS than did either lineal or strategic questions. Implications for the use of different types of questions in family therapy are discussed.
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Visceral pain is the major cause of consulting in gastroenterology and the principal symptom of functional bowel disorders. This symptom is often associated with gut hypersensitivity to distension. The use of animal models has recently permitted the identification of some mediators supposed to play a pivotal role in the genesis of visceral hypersensitivity. Serotonin, through different receptor subtypes, as well as kinins and calcitonin gene-related peptide, are known to be involved, but other putative transmitters arise and are new potential targets for the development of efficacious treatments. This themes article addresses both physiological and preclinical issues of interest for the selection of active new drugs in regard to the clinical pharmacology of visceral pain.
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We studied the long-term antianginal and anti-ischemic effects of two dosage regimens designed to prevent tolerance to transdermal nitroglycerin (TNTG): (1) 10 mg TNTG applied for 16 h with a 'nitrate-free' interval of 8 h; (2) 10 mg TNTG applied for 16 h followed by a 'nitrate-low' interval of 5 mg applied for 8 h. 129 patients completing a 3-month study period were evaluated by repeated exercise tests. Both regimens significantly increased maximum exercise duration at 3 months, from 699.1 +/- 23.4 to 833 +/- 21.9 s and from 686.1 +/- 20 to 789.6 +/- 22.6 s, respectively, reduced the number of patients with 1 mm S-T segment depression and increased the time duration to 1 mm S-T segment depression. Marked reductions in anginal attacks was observed in both groups: from 6.5 to 0.15 attacks per week and from 6.0 to 0.15 attacks per week, respectively. No statistically significant differences were found between the groups, and both regimens were well tolerated. In conclusion, our results demonstrate sustained antianginal efficacy, without tolerance, of either 'nitrate-free' of 'nitrate-low' interval therapy with transdermal nitroglycerin.
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Adenosine, as the brain's endogenous anticonvulsant, is considered to be responsible for seizure arrest and postictal refractoriness. On the other hand, deficiencies within the adenosine-based neuromodulatory system may contribute to epileptogenesis. Based on these natural mechanisms and on findings that adenosine and its analogs can suppress pharmacoresistant seizures, a new field of adenosine-based therapies has emerged, including the use of adenosine receptor agonists and adenosine transport inhibitors, or the inhibition of adenosine kinase, which is thought to be the key enzyme for the regulation of intra- and extracellular adenosine levels. However, most of these pharmacological approaches are limited by strong systemic side effects ranging from a decrease of heart rate, blood pressure, and body temperature to sedation. Recently, new strategies have been developed aimed at the local reconstitution of the inhibitory adenosinergic tone by intracerebral implantation of cells engineered to release adenosine. Adenosine-releasing cells or devices implanted into or near a seizure focus offer new hopes for a side effect-free therapy for pharmacoresistant epilepsy.
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