Is omega-3 polyunsaturated fatty acid supplementation better than a placebo for treating depression among children and adolescents? Key messages – Due to a lack of robust evidence, the benefits and unwanted effects of omega-3 polyunsaturated fatty acids (which are important fats that you must obtain from your diet) supplementation for treating depression among children and adolescents are unclear. – Larger, well-designed studies are needed to give better estimates of the potential benefits and harms of omega-3 polyunsaturated fatty acid supplementation for child and adolescent depression....

Methylxanthines for the prevention or treatment of intermittent hypoxemia or respiratory insufficiency in late preterm infants This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the benefits and harms of methylxanthines in preventing or treating intermittent hypoxemia or respiratory insufficiency in late preterm infants. This is a protocol....

Vaccines for preventing Ebola virus disease This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the effects of vaccines to prevent Ebola virus disease in people who have been, or have potentially been, exposed to Ebola virus. This is a protocol....

Virtual reality technology for pain management in advanced cancer This is a protocol for a Cochrane Review (intervention). The objectives are as follows: Primarily, to determine the effectiveness of a virtual reality (VR) intervention compared to an alternative or no intervention for people living with advanced cancer: on pain intensity, adverse events (AEs) and serious adverse events (SAEs); and secondarily, on additional pain properties (e.g. type, frequency), psychological well-being, other physical symptoms (e.g. anxiety) and quality of life. We will also report on the context in which...

Minimizing blood sampling in preterm infants This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the benefits and harms of different strategies to minimize blood sampling in preterm infants. This is a protocol....

What are the benefits and risks of tranexamic acid for preventing heavy bleeding after caesarean births? Key messages The clotting medicine tranexamic acid (TXA) given during caesarean birth does not prevent heavy bleeding when blood loss is measured by collecting blood and weighing surgical sponges, or when health providers estimate the amount of blood loss. When blood loss is calculated using the proportion of red blood cells in blood before and after the caesarean birth, there is likely a slight reduction in heavy bleeding. TXA probably does not make a difference in the number of women...

Support for parents and families after stillbirth and neonatal death This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To identify and assess the effect of support interventions focused on psychological, social, and emotional outcomes for bereaved parents (including birth and non-birthing mothers, fathers, partners) and family members of parents (e.g. grandparents; siblings) who have experienced stillbirth or neonatal death. This is a protocol....

Is silver diamine fluoride varnish an effective treatment for preventing and managing tooth decay in children and adults? Key messages - We can't tell if silver diamine fluoride (SDF) is better than no treatment at preventing or treating tooth decay. - We can't tell if SDF is better or worse than other treatments at preventing or treating tooth decay. - New studies could help to find out about the unwanted effects of SDF, whether people are bothered by the staining on the teeth caused by SDF, and the best treatment approach. What is tooth decay? Tooth decay happens when bacteria in your...

Antipsychotic drugs for anorexia nervosa This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the effects of antipsychotic drugs (both first- and second-generation antipsychotics) compared to placebo on body weight gain, psychological symptoms, acceptability, and adverse events for people with anorexia nervosa. This is a protocol....

Does taking statins prevent blood clots from forming in the veins of people who have not previously had a blood clot? Key messages - Statin use for the primary prevention of venous thromboembolism (VTE; a condition in which a blood clot, or embolism, forms in the vein) may slightly decrease the incidence of VTE and death from any cause, but the reduction may be too small to be important. - Statins may make no difference to the likelihood of experiencing deep vein thrombosis (DVT; a blood clot in the lower legs), pulmonary embolism (PE; a blood clot in the lungs), or myopathy (a condition...

Larger versus smaller red blood cell volume per transfusion in hospitalized adults, children, and preterm neonates This is a protocol for a Cochrane Review (intervention). The objectives are as follows: The objective of this review is to compare the effectiveness and safety of larger versus smaller RBC volume per transfusion for anemia in hospitalized adults, children, and preterm neonates. This is a protocol....

In women who have had one or both breasts removed, which breast reconstruction technique leads to better quality of life: use of implants or use of the woman's own tissue? Key messages • Breast reconstruction surgery that uses autologous tissue (the woman's own tissue, like fat or muscle) rather than implants might lead to better mental and sexual well-being and greater satisfaction with the operation overall. The rest of the evidence is very uncertain; it suggests autologous reconstruction compared with implants may improve women's satisfaction with the look and feel of the breast and...

How accurate are toe-brachial index and toe systolic blood pressures for peripheral arterial disease? Key messages - There is currently a lack of quality evidence to support the use of toe-brachial index (TBI) and toe systolic blood pressure (TSBP) to detect peripheral arterial disease, and clinicians should interpret these tests with caution. - More high-quality studies with larger numbers of participants are required to increase the certainty of evidence. Why is improving the diagnosis of peripheral arterial disease important? Peripheral arterial disease affects approximately 236 million...

First-line therapy for high-risk people with chronic lymphocytic leukemia: a network meta-analysis This is a protocol for a Cochrane Review (intervention). The objectives are as follows: Primary objective: to assess the benefits and harms of currently recommended regimens as the first-line therapy in high-risk people with chronic lymphocytic leukemia, using network meta-analysis Secondary objectives: to assess whether the benefits and harms of the recommended regimens differ according to sex, Rai stage, or genetic mutation status to estimate the ranking of treatments for overall survival,...

Pharmacological interventions for peripartum cardiomyopathy This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the effectiveness and safety of available pharmacological interventions for the care of women diagnosed with PPCM. This is a protocol....

Improving healthcare professionals' reporting of adverse drug reactions and medication errors Key messages - Healthcare professionals have a responsibility to report unexpected and harmful responses to medicines. These responses are known as 'adverse drug events', a term that includes both adverse drug reactions (ADRs) and medication errors (MEs). - An education session (outreach, in-person workshops or via telephone), along with providing a reminder card and ADR report form, may substantially increase the number of ADR reports submitted. - Using a standardised discharge form with...

What are the benefits and risks of medications for retained placenta after vaginal delivery? Key messages Uterotonics (medications used to cause contractions of the womb) may be no more effective than placebo (pretend treatment) or no treatment in avoiding manual removal of the placenta (removal of the placenta by inserting a hand into the womb), and probably do not reduce severe bleeding or need for a blood transfusion (where blood is taken from a donor and injected into the person who has lost a lot of blood). Different types of these medications probably make little to no difference in...

What are the benefits and risks of different perineal techniques during the second stage of labour for preventing post-birth injury? Key messages Evidence on the effect of perineal techniques to prevent post-birth injury and blood loss is very uncertain due to poor study quality and small studies. Further large, well-conducted studies are needed and should measure post-birth haemorrhage, adverse effects and maternal satisfaction. What is post-birth injury? Post-birth injury can occur in the perineal area (the area between the vulva and anus) during active labour. Women with post-birth injury...

Topical, light-based, and complementary interventions: which works better to treat acne and its complications? Key messages • We did not find enough good-quality evidence about benzoyl peroxide, topical antibiotics, and topical retinoids for treating acne. We found that the included systematic reviews only provided a small amount of evidence on these clinically important drugs for us to summarise. • Future research should focus on areas that are important to patients, researchers, and decision-makers, such as new drugs for acne treatment, topical antibiotics and retinoids, and acne...

Risk of fracture in users of hormonal contraception This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the effects of hormonal contraception used for pregnancy prevention on fracture risk in individuals who are currently or were previously capable of becoming pregnant. This is a protocol....