Cochrane Db Syst Rev
-
Cochrane Db Syst Rev · Jan 2004
ReviewOpioid switching to improve pain relief and drug tolerability.
Patients with cancer, and increasingly chronic non-cancer pain frequently require strong opioids for pain relief. Morphine is the first-line strong opioid of choice for these patients. While most achieve adequate analgesia with morphine, a significant minority either suffer intolerable side-effects, inadequate pain relief, or both. For these patients switching to an alternative opioid is becoming established clinical practice. However, the evidence for the effectiveness of opioid switching does not appear to be established. ⋯ For patients with inadequate pain relief and intolerable opioid-related toxicity/adverse effects, a switch to an alternative opioid may be the only option for symptomatic relief. However, the evidence to support the practice of opioid switching is largely anecdotal or based on observational and uncontrolled studies. Randomised trials, including 'N of 1' studies, where a patient acts as their own control, are needed: firstly, to establish the true effectiveness of this clinical practice; secondly, to determine which opioid should be used first-line or second-line; and thirdly, to standardise conversion ratios when switching from one opioid to another.
-
Cochrane Db Syst Rev · Jan 2004
ReviewMinilaparotomy and endoscopic techniques for tubal sterilisation.
Worldwide, the most commonly used method of fertility regulation is tubal sterilisation. In developed countries sterilisation is generally performed by laparoscopy rather than by minilaparotomy, based on the belief that this approach is both safe and effective. In developing countries, where the resources are limited for the purchase and maintenance of the more sophisticated laparoscopic equipment, minilaparotomy may still be the most common approach. In both resource poor and industrialised countries using the technique with the greatest effectiveness and safety, together with the least costs, is extremely important. Though both methods are widely used, the advantages and disadvantages of laparoscopic sterilisation compared to mini-laparotomy have not been systematically evaluated. The ideal method would be one which is highly effective, economical, able to be performed on an outpatient basis, allowing rapid resumption of normal activity, producing a minimal or invisible scar and having a potential for reversibility. This review considers the methods to enter the abdominal cavity through the abdominal wall, either by minilaparotomy, laparoscopy or culdoscopy regardless of the technique used for tubal sterilisation. ⋯ Major morbidity seems to be a rare outcome for both, laparoscopy and minilaparotomy. The included studies had limited power to demonstrate significant differences especially for the relatively rare but potentially serious outcomes. Personal preference of the woman and/or of the surgeon can guide the choice of technique. Practical aspects (e.g. cost, maintenance, and sterilisation of the instruments) must be taken into account before implementing the more sophisticated endoscopic techniques in settings with limited resources. Culdoscopy is not recommended as it carries a higher complication rate.
-
Hip fracture in the elderly usually results from a fall on the hip. Hip protectors have been advocated as a means to reduce the risk of sustaining a hip fracture. ⋯ There is no evidence of effectiveness of hip protectors from studies in which randomisation was by individual patient within an institution, or for those living in their own homes. Data from cluster randomised studies indicate that, for those living in institutional care with a high background incidence of hip fracture, a programme of providing hip protectors appears to reduce the incidence of hip fractures. Acceptability by users of the protectors remains a problem, due to discomfort and practicality.
-
Cochrane Db Syst Rev · Jan 2004
ReviewPlasma exchange for chronic inflammatory demyelinating polyradiculoneuropathy.
Chronic inflammatory demyelinating polyradiculoneuropathy is an uncommon progressive or relapsing paralysing disease caused by inflammation of the peripheral nerves. If the hypothesis that it is due to autoimmunity is correct, removal of autoantibodies in the blood by plasma exchange should be beneficial. ⋯ Evidence from two small trials showed that plasma exchange provides significant short-term benefit in about two-thirds of patients with chronic inflammatory demyelinating polyradiculoneuropathy but rapid deterioration may occur afterwards. Adverse events related to difficulty with venous access, use of citrate and haemodynamic changes are not uncommon. More research is needed to identify agents which will prolong the beneficial action of plasma exchange.
-
Colchicine has been used for patients with primary biliary cirrhosis because of its immunomodulatory and antifibrotic potential. The therapeutical responses to colchicine in randomised clinical trials were inconsistent. ⋯ We did not find evidence either to support or refute the use of colchicine for patients with primary biliary cirrhosis. As we are not able to exclude a detrimental effect of colchicine, we suggest that it is only used in randomised clinical trials.