Cochrane Db Syst Rev
-
Cochrane Db Syst Rev · Jan 2016
ReviewWITHDRAWN: Stabilisation splint therapy for temporomandibular pain dysfunction syndrome.
The Cochrane Oral Health Group withdrew this review as of Issue 1, 2016. The review is out of date and does not meet current Cochrane methodological standards. It will be superseded by a new Cochrane review on Occlusal interventions for managing temporomandibular disorders. The editorial group responsible for this previously published document have withdrawn it from publication.
-
This is an update of a Cochrane review first published in 2001 and then updated in 2009. Vascular risk factors including high cholesterol levels increase the risk of dementia due to Alzheimer's disease and of vascular dementia. Some observational studies have suggested an association between statin use and lowered incidence of dementia. ⋯ There is good evidence that statins given in late life to people at risk of vascular disease do not prevent cognitive decline or dementia. Biologically, it seems feasible that statins could prevent dementia due to their role in cholesterol reduction and initial evidence from observational studies was very promising. However, indication bias may have been a factor in these studies and the evidence from subsequent RCTs has been negative. There were limitations in the included studies involving the cognitive assessments used and the inclusion of participants at moderate to high vascular risk only.
-
Cochrane Db Syst Rev · Jan 2016
ReviewSurgery for the resolution of symptoms in malignant bowel obstruction in advanced gynaecological and gastrointestinal cancer.
This is an update of the original Cochrane review published in Issue 4, 2000. Intestinal obstruction commonly occurs in progressive advanced gynaecological and gastrointestinal cancers. Management of these patients is difficult due to the patients' deteriorating mobility and function (performance status), the lack of further chemotherapeutic options, and the high mortality and morbidity associated with palliative surgery. There are marked variations in clinical practice concerning surgery in these patients between different countries, gynaecological oncology units and general hospitals, as well as referral patterns from oncologists under whom these patients are often admitted. ⋯ The role of surgery in malignant bowel obstruction needs careful evaluation, using validated outcome measures of symptom control and quality of life scores. Further information could include re-obstruction rates together with the morbidity associated with the various surgical procedures.Currently, bowel obstruction is managed empirically and there are marked variations in clinical practice by different units. In order to compare outcomes in malignant bowel obstruction, there needs to be a greater degree of standardisation of management.Since the last version of this review none of the new included studies have provided additional information to change the conclusions.
-
Cochrane Db Syst Rev · Jan 2016
ReviewWITHDRAWN: Psychological interventions to improve adherence to oral hygiene instructions in adults with periodontal diseases.
As this review is 10 years old, it has been withdrawn and will be superseded. A new protocol has been written and published: O'Malley L, Bonetti DL, Adair P, Jervøe‐Storm PM, Preshaw PM. Psychological interventions for improving adherence to oral hygiene instructions in adults with periodontal diseases (Protocol). ⋯ CD012049. The full review will be published in 2017. The editorial group responsible for this previously published document have withdrawn it from publication.
-
Cochrane Db Syst Rev · Jan 2016
Review Meta AnalysisVitamin D supplementation for women during pregnancy.
Vitamin D deficiency or insufficiency is thought to be common among pregnant women. Vitamin D supplementation during pregnancy has been suggested as an intervention to protect against adverse pregnancy outcomes. ⋯ New studies have provided more evidence on the effects of supplementing pregnant women with vitamin D alone or with calcium on pregnancy outcomes. Supplementing pregnant women with vitamin D in a single or continued dose increases serum 25-hydroxyvitamin D at term and may reduce the risk of pre-eclampsia, low birthweight and preterm birth. However, when vitamin D and calcium are combined, the risk of preterm birth is increased. The clinical significance of the increased serum 25-hydroxyvitamin D concentrations is still unclear. In light of this, these results need to be interpreted with caution. Data on adverse effects were lacking in all studies.The evidence on whether vitamin D supplementation should be given as a part of routine antenatal care to all women to improve maternal and infant outcomes remains unclear. While there is some indication that vitamin D supplementation could reduce the risk of pre-eclampsia and increase length and head circumference at birth, further rigorous randomised trials are required to confirm these effects.