Herpes zoster vaccine reduces chances of shingles after stem cell transplants
A non-live vaccine against herpes zoster provides good, though partial protection for adults undergoing autologous (using the patient’s own) stem cell transplant for treatment of blood cancers. These people cannot use the usual live vaccine, because of their suppressed immune system.
An industry-funded trial of the vaccine involved 1,846 patients from 28 countries, including the UK. Two doses of the vaccine resulted in a 68% reduction in cases of shingles over 21 months of follow-up. Shin...
Diagnosis of delirium in hospitals can be improved by the 4 A’s test
A new shorter test for delirium appears helpful in assessing older people in hospital who may have the condition. A normal score on the 4 A’s test effectively rules out delirium while an abnormal score is reasonably useful for detecting the condition. People detected by the test would still need a full assessment to confirm the diagnosis.
Delirium is common in older people who have been hospitalised, but it can go undiagnosed. To help combat this, the 4 A’s test was developed as an ...
Non-invasive brain stimulation may improve outcomes for children with brain injury
Non-invasive brain stimulation may help improve limb function in children with motor disorders following brain injury, such as cerebral palsy or one-sided weakness. This is a relatively safe procedure where pads placed on the head deliver electric or magnetic currents, which are thought to activate the motor areas of the brain.
This review evaluated 14 trials, including 306 children comparing two types of brain stimulation with a control group. It found that these types of stimulation may impro...
Levetiracetam is a useful alternative to phenytoin in stopping prolonged epileptic seizures in children
Levetiracetam is as effective as phenytoin at stopping prolonged epileptic seizures in children. In this trial, levetiracetam stopped 70% of children convulsing compared with 64% for phenytoin within 35 to 45 minutes. Adverse events were similar. This combined with the fact levetiracetam may be easier to administer safely make it an important option.
Most epileptic seizures stop by themselves within a few minutes, but sometimes they continue for much longer. If this happens emergency treatment ...
When is it best to start the Parkinson’s drug, levodopa?
Earlier treatment with levodopa provides symptomatic relief to those with symptoms but does not appear to slow Parkinson’s disease from progressing. Therefore, timing is best determined by symptoms.
The treatment of Parkinson’s disease is complex. Levodopa is the main drug used to reduce tremors and muscle stiffness. Whether it modifies the course of the disease or becomes less effective over time is debated, and it can have side effects, so patients and clinicians sometimes prefer ...
Brain scan may predict long-term disabilities in babies with brain injury
Magnetic resonance spectroscopy, a type of scan which shows brain biochemistry, could help predict whether there will be long-term effects of brain injury (encephalopathy) in new-born babies. It is usually done alongside an MRI.
Researchers scanned 82 babies being treated for brain injury, using MRI and also magnetic resonance spectroscopy. One biomarker tested at seven days after birth, thalamic N-acetylaspartate, correctly identified all babies who went on to have adverse developmental outcom...
Early cooling provides no benefit following traumatic brain injury
Deliberate cooling (prophylactic hypothermia) in the early management of traumatic brain injury does not improve neurological outcomes at six months. Inducing hypothermia may also increase the risk of pneumonia.
Hypothermia (33-35oC) is sometimes induced to try and limit brain damage in people with severe head injuries. However, evidence for its safety and effectiveness has been mixed. A 2015 trial (Eurotherm 3235) found that therapeutic hypothermia, for adults with raised intracranial pressur...
No benefit from monitoring antiepileptic drug levels in pregnancy
Regular monitoring of antiepileptic drug levels in pregnant women with epilepsy does not improve seizure control compared with clinical features-based monitoring. This NIHR-funded study was conducted across 50 UK hospitals and is the largest randomised trial in pregnant women with epilepsy.
Just over 260 pregnant women with unstable antiepileptic drug levels were assigned to ongoing monthly blood checks or clinical features monitoring. There were no differences in seizures or other pregnancy ou...
Adrenaline can restart the heart but is no good for the brain
Treating cardiac arrests with adrenaline during resuscitation by paramedics slightly increases survival compared with placebo. Though adrenaline initially helped restore circulation in a third of cases, 3.2% of people survived to 30 days compared to 2.4% of people in the placebo group. Severe brain damage was nearly twice as likely in those who survived after adrenaline injections.
Cardiac arrest occurs when the heart no longer pumps blood around the body, usually due to an irregular heart rhyt...
Cannabis derivative may reduce seizures in some severe drug-resistant epilepsies, but adverse events increase
In people with some types of severe, drug-resistant epilepsy, adding cannabidiol to their treatment may reduce seizure frequency and improve quality of life compared with a placebo. The likelihood of being free from seizures for more than a year was still low, about 8%. However, an additional 12% of people had serious adverse effects with cannabidiol.
These findings come from a systematic review, which included six trials in 555 patients. Most were children and adolescents with rare forms of ep...