Friday, 13 September 2019
An innovative solution used to prevent common brain infections in patients having surgery for hydrocephalus has been found to significantly reduce infection rates according to a report published in The Lancet.
Hydrocephalus is a build-up of fluid on the brain. The excess fluid puts pressure on the brain, which can damage it. Approximately one out of every 500 babies is born with hydrocephalus, making it the most common reason for brain surgery in children.
Babies born with hydrocephalus (congenital) and adults or children who develop it (acquired) usually need prompt treatment to reduce the pressure on their brain. This is usually done with a shunt.
During surgery, a thin tube called a shunt is implanted in the brain. The excess cerebrospinal fluid (CSF) in the brain flows through the shunt to drain into the abdominal cavity where is absorbed. Approximately 1300 new shunts (UK shunt registry) are inserted in the UK each year.
Unfortunately, shunt infection affects up to 15% of patients having shunt surgery, and is more common in children and neonates. Shunt infection is a serious complication that can lead to meningitis, weeks in hospital, prolonged antibiotics, the need for further surgery and irreversible brain injury.
A team of scientists from the University of Nottingham, led by Professor of Surgical Infection Roger Bayston, developed a novel process (Bactiseal®) that allows brain shunts to be impregnated with antibiotics during manufacture.
A team of researchers from the University of Liverpool, Alder Hey Children’s NHS Foundation Trust and The Walton Centre NHS Foundation Trust conducted the largest – ever clinical trial for hydrocephalus to test the infection-reducing properties of Bactiseal®. The BASICS trial (British Antibiotic and Silver Impregnated Catheters for ventriculoperitoneal Shunts) was funded by the National Institute for Health Research (NIHR), and cost £2.3M. Over 1600 patients with hydrocephalus took part, across 21 UK neurosurgery centres. The study took seven years (2012-2019) to complete.
The BASICS trial compared antibiotic and silver shunts to standard shunts (without antibiotic or silver coating). The results showed that antibiotic shunts reduce the infection rate from 6% to 2% and saved the NHS approximately £130K per infection averted. If the antibiotic shunts were used in all new patients, this would save the NHS approximately 7 million pounds per year.
The Chief investigators were Professor Conor Mallucci, Paediatric Neurosurgeon at Alder Hey Children’s Hospital Trust, and Michael Jenkinson, Reader in Neurosurgery at the University of Liverpool and Consultant Neurosurgeon at The Walton Centre. The study was co-ordinated by Professor Carrol Gamble and run by the University of Liverpool’s Clinical Trials Research Centre.
The antibiotic shunts have now been shown in a well-designed randomised controlled trial to significantly reduce infection in hydrocephalus shunts. This is a major step forward in treatment of this condition, which can affect newborn babies and adults alike, and will reduce the need for surgery and for antibiotic treatment and will save heathcare costs.”
Conor Mallucci, said: “The results of our trial will have an impact on national and international hydrocephalus guidelines and policy. Using these antibiotic shunts will not only reduce potential harm to our patients but are also cost effective and should save Healthcare providers millions of pounds avoiding countless unnecessary days in hospital.’
Michael Jenkinson, said: “The BASICS study shows that antibiotic shunts reduce the risk of infection for all patients having shunt surgery for hydrocephalus. If we use antibiotic shunts routinely we really can ‘get it right first time’ by avoiding harm and delivering better outcomes for all our patients.”
The full paper, entitled ‘Antibiotic or silver versus standard ventriculoperitoneal shunts (BASICS): a multicentre, single-blinded, randomised trial and economic evaluation’, can be found on The Lancet website once the embargo has lifted.
Story credits
More information is available from Professor Roger Bayston from the School of Medicine at the University of Nottingham at roger.bayston@nottingham.ac.uk
Notes to editors:
About the University of Nottingham
Ranked 32 in Europe and 16th in the UK by the QS World University Rankings: Europe 2024, the University of Nottingham is a founding member of the Russell Group of research-intensive universities. Studying at the University of Nottingham is a life-changing experience, and we pride ourselves on unlocking the potential of our students. We have a pioneering spirit, expressed in the vision of our founder Sir Jesse Boot, which has seen us lead the way in establishing campuses in China and Malaysia - part of a globally connected network of education, research and industrial engagement.
Nottingham was crowned Sports University of the Year by The Times and Sunday Times Good University Guide 2024 – the third time it has been given the honour since 2018 – and by the Daily Mail University Guide 2024.
The university is among the best universities in the UK for the strength of our research, positioned seventh for research power in the UK according to REF 2021. The birthplace of discoveries such as MRI and ibuprofen, our innovations transform lives and tackle global problems such as sustainable food supplies, ending modern slavery, developing greener transport, and reducing reliance on fossil fuels.
The university is a major employer and industry partner - locally and globally - and our graduates are the second most targeted by the UK's top employers, according to The Graduate Market in 2022 report by High Fliers Research.
We lead the Universities for Nottingham initiative, in partnership with Nottingham Trent University, a pioneering collaboration between the city’s two world-class institutions to improve levels of prosperity, opportunity, sustainability, health and wellbeing for residents in the city and region we are proud to call home.
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