Spiritual healing is a popular complementary and alternative therapy; in the UK almost 13000 members are registered in nine separate healing organisations. The present randomized clinical trial was designed to investigate the efficacy of healing in the treatment of chronic pain. One hundred and twenty patients suffering from chronic pain, predominantly of neuropathic and nociceptive origin resistant to conventional treatments, were recruited from a Pain Management Clinic. The trial had two parts: face-to-face healing or simulated face-to-face healing for 30 min per week for 8 weeks (part I); and distant healing or no healing for 30 min per week for 8 weeks (part II). The McGill Pain Questionnaire was pre-defined as the primary outcome measure, and sample size was calculated to detect a difference of 8 units on the total pain rating index of this instrument after 8 weeks of healing. VASs for pain, SF36, HAD scale, MYMOP and patient subjective experiences at week 8 were employed as secondary outcome measures. Data from all patients who reached the pre-defined mid-point of 4 weeks (50 subjects in part I and 55 subjects in part II) were included in the analysis. Two baseline measurements of outcome measures were made, 3 weeks apart, and no significant differences were observed between them. After eight sessions there were significant decreases from baseline in McGill Pain Questionnaire total pain rating index score for both groups in part I and for the control group in part II. However, there were no statistically significant differences between healing and control groups in either part. In part I the primary outcome measure decreased from 32.8 (95% CI 28.5-37.0) to 23.3 (16.8-29.7) in the healing group and from 33.1 (27.2-38.9) to 26.1 (19.3-32.9) in the simulated healing group. In part II it changed from 29.6 (24.8-34.4) to 24.0 (18.7-29.4) in the distant healing group and from 31.0 (25.8-36.2) to 21.0 (15.7-26.2) in the no healing group. Subjects in healing groups in both parts I and II reported significantly more 'unusual experiences' during the sessions, but the clinical relevance of this is unclear. It was concluded that a specific effect of face-to-face or distant healing on chronic pain could not be demonstrated over eight treatment sessions in these patients.
Twenty-four patients with severe pain related to cancer completed a randomised, double-blind, double-dummy, crossover study examining morphine pharmacokinetics and pharmacodynamics when the same 24-h morphine dose was administered using two modified release oral morphine formulations; either one dose of Kapanol (a new sustained release polymer coated pellet formulation administered in capsule form, Glaxo Wellcome group of companies) per 24 h, or MS Contin (Purdue Frederick Company, Connecticut, USA) administered at 12-h intervals. The morphine dose was optimised for each patient using an immediate release morphine solution in the lead-in period to provide the most favourable balance between pain relief and side-effects. Patients were then randomly allocated to receive their 24-h morphine dose as either Kapanol or MS Contin in period 1. Patients recorded daily measures of pain relief and morphine related side-effects (morphine pharmacodynamics) in a diary. Patients were admitted to the Pain Management Unit on the morning of day 7 (+/- 1 day) and frequent blood samples were collected for 24 h following the 10:00 h dose to fully characterise the pharmacokinetic profile for morphine and its metabolites at steady state. Morphine pharmacodynamics and the amount and timing of rescue medication (dextromoramide) were also recorded during this time. Period 2, which commenced at 10:00 h on day 8, was identical to period 1 except the modified release formulations were changed. The pharmacokinetic profile of Kapanol exhibited a significantly higher Cmin (minimum plasma morphine concentration), less fluctuation in plasma morphine concentration throughout the dosing interval, a longer Tmax (time associated with the maximum morphine concentration) and a greater time that the plasma morphine concentration was > or = 75% of Cmax (an index of the control the formulation exerts over the morphine release rate) compared to that of MS Contin. Some of these pharmacokinetic differences (e.g., Cmin and fluctuation in plasma morphine concentration) were surprising given that the dosing interval for Kapanol (24 h) was double that of MS Contin (12 h). There was no significant difference between the Kapanol and MS Contin treatment phases in any of the pharmacodynamic parameters, morphine related side-effects, the percentage of patients taking rescue medication as well as the amount or time to the first dose of rescue analgesia on day 7 in periods 1 and 2, patient or investigator assessments of global efficacy at the end of periods 1 and 2, or patient treatment preference at the end of the study. Once a day Kapanol provided the same degree of pain relief and morphine related side-effects as 12-h MS Contin.
SummaryIn a randomised, double-blinded, two-centre trial we evaluated the effect of a microbiological filter (SuporÒ, Pall Life Sciences) on propofol injection pain. We studied 336 unpremedicated adult patients, who graded pain experienced during induction of anaesthesia with propofol on a 4-point verbal rating scale. Use of the microfilter reduced both the incidence and severity of propofol injection pain (p < 0.001). Incidence of severe pain in the filter group was 2.4% compared with 16.6% in the control group. Overall, 33.7% in the filter group experienced pain compared with 62.1% in the control group. A microbiological filter may provide a non-pharmacological alternative to a lidocaine ⁄ propofol mixture for reducing injection pain. It would also reduce the risk of any glass and bacterial contamination.
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