Articles: patients.
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In the past the view has often been expressed that children are less sensitive to pain than adults as a result of the assumption that their nervous system is not as well developed. According to this theory, newborns were not supposed to feel pain at all, and for this reason minor surgery was often performed with inadequate anesthesia. Evidence in the more recent literature and the regular choice of "pain in children" as a topic for congresses exemplify the more and more widespread belief that children of all ages can feel pain and, relative to their developmental stage, suffer accordingly. ⋯ As cognition develops further, the patient's own concept of health and sickness changes, as does the ability to express feelings of pain. In the pathogenesis of pain in children, the dominant types are nociceptor pain (e.g., as a result of trauma or infection) and pain resulting from malfunction (e.g., physical malposition, migraine), whereas nervous pain occurs less frequently. Pediatricians should pay particular attention to the treatment of acute and chronic pain in children.
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The gate control theory resulted in intensified consideration and investigation of psychological factors in the pathogenesis and continuation of chronic pain. This had led to an increasing interest in the efficacy of psychotherapy for such patients. The different forms of psychotherapy (hypnosis, relaxation, behavior therapy, psychodynamically oriented therapy) currently most often applied are reviewed with notes on the methods and the efficacy recorded for each. ⋯ The small numbers of patients evaluated in most of the studies suggest that the population investigated may well not be representative, especially if the difficulty of motivating chronic pain patients to present for psychotherapy is taken into account. In addition, a diagnostic classification of the population investigated is lacking. Conclusions are drawn for the planning of future therapy studies.
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During the 1960s, it was observed that the tricyclic antidepressant imipramine was effective in the treatment of neuralgia, myalgia, and pain in carcinoma. Similarly, in other studies, clomipramine was also found to have an analgesic effect. The sedative antidepressant amitriptyline has proved effective in migraine prophylaxis, chronic tension headache, and psychogenic musculoskeletal and neuralgic facial pain. ⋯ The remaining tricyclic and the tetracyclic antidepressants have not been sufficiently well evaluated. This is also true of monoamine oxidase inhibitors, of which individual reports to date suggest are probably also effective as analgesics. A scientific investigation into the possible differences in the effectiveness of various antidepressants in specific chronic pain conditions is an important task for the future.
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J Neurosurg Anesthesiol · Mar 1989
Sufentanil, alfentanil, and fentanyl: impact on cerebrospinal fluid pressure in patients with brain tumors.
In order to evaluate the safety of the new synthetic opioids, alfentanil and sufentanil, in neurosurgical patients, we administered sufentanil 1 microg/kg i.v., alfentanil 50 microg/kg i.v. followed by an infusion of 1 microg/kg/min, or fentanyl 5 microg/kg i.v. to 30 patients with supratentorial tumors anesthetized with nitrous oxide (N2O), 60% in O2. Lumbar cerebrospinal fluid pressure (CSFP) and mean arterial pressure (MAP) responses were recorded for 10 min thereafter, while ventilation was held constant [mean PaCO2 = 36.1 +/- 1.0 mm Hg (SEM)]. There was no change in CSFP after fentanyl. ⋯ It is concluded that because sufentanil increased CSFP in patients who have brain tumors, it also may be contraindicated in other neurosurgical patients at risk for intracranial hypertension. Alfentanil may share this propensity, since CSFP increased despite a profound reduction in MAP. Among the three opioids evaluated, only fentanyl appears to be appropriate for supplementing N2O-2 anesthesia in patients who have compromised intracranial compliance.