Cochrane Db Syst Rev
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Cochrane Db Syst Rev · Apr 2006
ReviewExercise or other physical activity for preventing pre-eclampsia and its complications.
The association between an increase in regular physical activity and a reduction in the risk of hypertension is well documented for non-pregnant people. It has been suggested that exercise may help prevent pre-eclampsia and its complications. Possible adverse effects of increased physical activity during pregnancy, particularly on the risk of preterm birth and fetal growth restriction, are unclear. It is, therefore, important to assess whether exercise reduces the risk of pre-eclampsia and its complications and, if so, whether these benefits outweigh the risks. ⋯ There is insufficient evidence for reliable conclusions about the effects of exercise on prevention of pre-eclampsia and its complications.
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In traditional didactic teaching, the learner has a passive role, digesting the knowledge presented by the teacher. Stimulating and active teaching processes may be better at instilling information than more pedestrian approaches. Games involving repetition, reinforcement, association and use of multiple senses have been proposed as part of experiential learning. ⋯ Current limited evidence suggests educational games could help mental health students gain more points in their tests, especially if they have left revision to the last minute. This salient study should be refined and repeated.
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Cochrane Db Syst Rev · Apr 2006
ReviewLeukotriene receptor antagonist for prolonged non-specific cough in children.
Non-specific cough is defined as non-productive cough in the absence of identifiable respiratory disease or known aetiology. It is commonly seen in paediatric practice. These children are treated with a variety of therapies including a variety of asthma medications. The leukotriene pathway is reported to be involved in the sensory (neurogenic) pathway, which is a mechanism thought to be involved in the pathogenesis of chronic cough. ⋯ With the lack of evidence, the routine use of LRTA in treating children with non-specific cough cannot be recommended.
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Approximately 50% of people with myasthenia gravis present initially with purely ocular symptoms, so called ocular myasthenia and between 50 to 60% of these people will progress to develop generalized disease. The vast majority will do so within the first one to two years. There is controversy surrounding the appropriate management of patients with ocular myasthenia. ⋯ There are no data from randomized controlled trials on the impact of any form of treatment on the risk of progression from ocular to generalized myasthenia gravis. The available randomized controlled literature does not permit any meaningful conclusions about the efficacy of any form of treatment for ocular myasthenia. Data from several reasonably good quality observational studies suggest that corticosteroids and azathioprine may be beneficial in reducing the risk of progression to generalized myasthenia gravis.
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Dilatation and effacement of the cervix are not only a result of uterine contractions, but are also dependent upon ripening processes within the cervix. The cervix is a fibrous organ composed principally of hyaluronic acid, collagen and proteoglycan. Hyaluronic acid increases markedly after the onset of labour. An increase in the level of hyaluronic acid is associated with an increase in tissue water content. Cervical ripening during labour is characterised by changes of the cervix and an increased water content. Cervical injection of hyaluronidase was postulated to increase cervical ripening. This is one of a series of reviews of methods of cervical ripening and labour induction using standardised methodology. ⋯ Intracervical injections of hyaluronidase for cervical ripening appear beneficial. However, this is not common practice. In addition it is an invasive procedure that women may find unacceptable in the presence of less invasive methods.