Cochrane Db Syst Rev
-
Health care professionals frequently advise patients to improve their health by stopping smoking. Such advice may be brief, or part of more intensive interventions. ⋯ Simple advice has a small effect on cessation rates. Additional manoeuvres appear to have only a small effect, though more intensive interventions are marginally more effective than minimal interventions.
-
Cochrane Db Syst Rev · Jan 2000
Review Meta AnalysisLow level laser therapy (classes I, II and III) for the treatment of osteoarthritis.
Osteoarthritis (OA) affects a large proportion of the population. Low Level Laser Therapy (LLLT) is a light source that generates extremely pure light, of a single wavelength. The effect is not thermal, but rather related to photochemical reactions in the cells. LLLT was introduced as an alternative non-invasive treatment for OA about 10 years ago, but its effectiveness is still controversial. ⋯ For OA, the results are conflicting in different studies and may depend on the method of application and other features of the LLLT application. Clinicians and researchers should consistently report the characteristics of the LLLT device and the application techniques used. New trials on LLLT should make use of standardized, validated outcomes. Despite some positive findings, this meta-analysis lacked data on how LLLT effectiveness is affected by four important factors: wavelength, treatment duration of LLLT, dosage and site of application over nerves instead of joints. There is clearly a need to investigate the effects of these factors on LLLT effectiveness for OA in randomized controlled clinical trials.
-
Excessively heavy menstrual bleeding (HMB) or menorrhagia is an important cause of ill health in women. Eighty per cent of women treated for HMB have no anatomical pathology and so medical therapy, with the avoidance of possibly unnecessary surgery, is an attractive alternative. Of the wide variety of medications used to reduce heavy menstrual bleeding, oral progestogens are the most commonly prescribed in many western countries, although there is little objective evidence to support their use, especially in women with ovulatory menstruation. This review assesses the effectiveness of 2 different regimens of oral progestogens in reducing ovulatory HMB. ⋯ No RCTs comparing progestogen treatment with placebo were identified. Comparisons between oral progestogens and other medical therapies were assessed separately according to dosage regimen, progestogens given during the luteal phase of the menstrual cycle and progestogens given for 21 days between day 5 and 26. Progestogen therapy during the luteal phase was significantly less effective at reducing menstrual blood loss when compared with tranexamic acid, danazol and the progesterone releasing intrauterine system (IUS) and there was also a strong non-significant trend in favour of nonsteroidal anti-inflammatory drugs (NSAIDs). Duration of menstruation was significantly longer with the progesterone IUS when compared with oral progestogen therapy but significantly shorter under danazol treatment. Compliance and acceptability of treatment where measured did not differ between treatments. Adverse events were significantly more likely under danazol when compared with progestogen treatment. Change in quality of life was not significantly different with progestogen and tranexamic acid therapy but there was a non-significant trend in favour of tranexamic acid for all three categories. Progestogen therapy administered from day 5 to 26 of the menstrual cycle was significantly less effective at reducing menstrual blood loss than the progestogen releasing intrauterine system (LNG IUS) although the reduction from baseline was significant for both groups. The odds of the menstrual period becoming "normal" (ie <80mls/cycle) were also less likely in patients treated with norethisterone (NET) (days 5 to 26) compared to patients treated with LNG IUS. A significantly higher proportion of NET patients found their treatment unacceptable compared to LNG IUS patients. However, the adverse events breast tenderness and intermenstrual bleeding were more likely in the patients with the IUS. (ABSTRACT TRUNCATED)
-
Recurrent apnea is common in preterm infants, particularly at very early gestational ages. These episodes of loss of effective breathing can lead to hypoxemia and bradycardia which may be severe enough to require resuscitation including use of positive pressure ventilation. Two forms of methylxanthine (caffeine and theophylline) have been used to stimulate breathing and so prevent apnea and its consequences. ⋯ Caffeine appears to have similar short term effects on apnea/bradycardia to theophylline. In view of the other therapeutic advantages of caffeine (a higher therapeutic ratio, more reliable enteral absorption and a longer half life) this is the preferred treatment for apnea in preterm infants. The possibility that higher doses of caffeine might be more effective in extremely preterm infants needs further evaluation in randomized clinical trials.
-
There is a need to identify effective and safe treatments for depression in children and adolescents. While tricyclic drugs have proven effectiveness in the treatment of depression in adults, individual studies involving children and adolescent have been equivocal. ⋯ Data suggest tricyclic antidepressants are of unlikely benefit in the treatment of depression in pre pubertal children. There is marginal evidence to support the use of tricyclic antidepressants in the treatment of depression in adolescents, although the magnitude of effect is likely to be moderate at best.