Inside Health

There are questions in Parliament following the story of 6 year old Alfie Dingley who was refused medical cannabis to help relieve his epileptic seizures. But what is the body of evidence for medical cannabis and does the reality live up to the hype? And age, immunity and the poor performance of this season's flu vaccine. Why do our defences decline as we get older and what can be done to improve vaccines that aim to protect the elderly against flu? Plus blood in your urine - pee the colour of Ribena is hopefully enough to drive anyone to their doctor - but what about tiny traces invisible to the naked eye frequently picked up by sensitive dipstick tests? If that has happened to you listen to our comprehensive guide.

Rickets was eradicated from the UK after World War Two but "The English Disease", as rickets has long been known, is back. Two children have died of this completely preventable disease in the past two years. Dr Mark Porter talks to paediatrician Dr Benjamin Jacobs at the Royal Orthopaedic Hospital in Stanmore about the importance of Vitamin D supplementation and calcium for proper bone growth. He meets Zana, whose toddler son was diagnosed with rickets six months ago and talks to Dr Priscilla Julies, paediatrician from the Royal Free Hospital in London about the forthcoming British Paediatric Surveillance Unit survey of the disease. Consultant Paediatric Endocrinologist Dr Wolfgang Hogler from Birmingham Children's Hospital tells Mark that the UK's record of vital Vitamin D supplementation is woeful compared to our European neighbours and warns that unless rickets is given a higher priority, more lives will be lost.The number of drug related deaths has soared in recent years and this is against a background of growing concern about the misuse of prescription medicines - particularly morphine type painkillers - and the burgeoning popularity of novel psychoactive substances like spice and mamba. But this changing drugs scene has been accompanied by changing attitudes and approaches to what helps addicts recover. A new European survey - in England, Scotland, Belgium and the Netherlands - led by David Best, Professor of Criminology at Sheffield Hallam University aims to map what has helped people out of their drug addiction and he tells Mark this will better shape policy and services. Advances in pacemaker technology mean that many people who are prone to life-threatening heart rhythm disturbances, will have, inside their chests, their own internal defibrillators, known as implantable cardioverter defibrillators, or ICDs. These tiny devices, not much bigger than a matchbox, sit in the upper chest and monitor the heart. When they detect a problem they automatically deliver a shock, direct to the organ. This is life-saving technology but arrhythmia specialist nurse, Sharlene Hogan from St Thomas' Hospital in London six years ago set up a support group for patients with ICDs, because she realised that there was enormous anxiety about when the device might fire. The group meets three to four times a year and Inside Health reports from their most recent get together.Producer: Fiona Hill.

Over half of all blood clots are acquired during hospitalisation, particularly for surgery, so prevention is key. Deep vein thromboses - DVTs - typically occur in the veins of the leg and central to prevention is the need to assess individual risk, while taking steps like special stockings, leg massagers and anticoagulant "blood thinning" drugs to mitigate them. But there are concerns in some quarters - particularly among orthopaedic surgeons - that the drive to protect patients against clots has exposed them to risks of bleeding and that the pendulum has swung too far the other way. Three leading specialists discuss the issues. And iron deficiency, a very common problem, but what is the best way to treat it? New research from Switzerland unexpectedly suggests that giving less iron, less frequently, leads to more absorption. Plus, what's in a doctor's bag?

About six thousand people in the UK lose a leg every year from amputations due to vascular problems, trauma and disease. Others are born without limbs. Standard prosthetic knees often meant frequent falls and stumbles as well as the need to use two sticks. But microprocessor power is set to change all that. A new generation of intelligent joints is now available for the first time on the NHS in England - you can already get them in Scotland and Northern Ireland - and they adjust the knee stiffness to match the individual's weight, gait and activity and they even have anti-stumble software. Dr Mark Porter joins Dr Imad Sedki, consultant in rehabilitation medicine at the Royal National Orthopaedic Hospital in Stanmore at a retrofitting clinic, where patients like Naitik Patel are fitted with these new smart knees.Almost a decade ago, researchers in Scotland coined the term "The Glasgow Effect" after they exposed the shocking fact that premature deaths were 30% higher in Scotland's biggest city compared with cities with similar histories like Liverpool and Manchester. Since then studies have highlighted a toxic combination of social, political and economic decisions which adversely affected the health of Glaswegians. Sir Harry Burns, the former Chief Medical Officer for Scotland, now Professor of Global Public Health at the University of Strathclyde, talks to Mark about why the phrase "The Glasgow Effect" has fallen out of favour and what he thinks should be done to address continuing health inequality.Glasgow - in fact the UK as a whole - has one of the highest rates in the world of mesothelioma, a cancer which attacks the lining of the lung and which is directly linked to the breathing in of asbestos fibres. From her home city, Inside Health's Dr Margaret McCartney reports from the Queen Elizabeth Hospital in Glasgow, which is a specialist centre for patients with this cancer. She talks to Robert Henderson, who contracted mesothelioma fifty years after working as an apprentice electrician and to 68 year old Boyd McNicol, who worked as an art teacher in a school full of asbestos when he was in his 20s. Their doctor, Kevin Blyth, is a respiratory consultant who coordinates a mesothelioma service across Western Scotland. He tells Margaret that the 20, 30, 40 and even 50 year time lag between exposure to asbestos and a diagnosis of mesothelioma means that the cancer will still be claiming lives for many years to come and urgent new treatments are needed. Producer: Fiona Hill.

News that the pharmaceutical giant Pfizer has pulled out of research into Alzheimer's and Parkinson's disease is casting doubt over the future of long promised breakthroughs in this area. Mark Porter hears from two leading experts who explain that due to the complexity of the disease the pharmaceutical industry's single agent 'magic bullet' approach needs to change. And while over the last 15 years nearly every trial into new treatments for Alzheimer's has ended in failure, lifestyle and medical prevention are starting to make a difference. Plus clarity on headlines that women who've had the HPV vaccine to prevent cervical cancer will need far fewer smear tests in future. But how will the national screening programme know for sure who has been vaccinated - and who hasn't? And Margaret McCartney's thoughts on other news that women treated for breast cancer who carry the BRCA1 and BRCA2 mutations that dramatically increase the risk of developing the disease, are just as likely to survive their illness as women who don't.

It's fifty years since the first human heart transplant but the number of donor organs - about 200 per year in the UK - remains dwarfed by demand. About 2,000 people under the age of 65 a year will die of heart failure without a transplant. Kevin Fong explores new ways that people with heart failure can be helped. He talks to Dr Doris Taylor, director of the Center for Cell and Organ Biotechnology, at the Texas Heart Institute, in Houston, about her research into growing hearts from stem cells. Kevin discusses the prospect of taking organs from pigs and using them for so-called xenotransplants with cardiothoracic surgeon Prof John Dark, of Newcastle University, who says this approach has not delivered benefits. An alternative to a heart transplant is the left ventricular assist device (LVAD) - an artificial pump that helps the left side of the heart do its job. This has shrunk from a large external piece of kit to a tiny battery-operated device that can be implanted into the chest. For the first year, they are as effective as a transplant, but they have a risk of infection, and they are not always easy to live with. Kevin meets patient Vincenzo Avanzato who had an LVAD that became infected and then a successful transplant.Kevin also talks to surgeon Mr Andre Simon of Harefield Hospital about the future of completely mechanical hearts made of metal and plastic.

What goes into our flu vaccine always has an element of guesswork. Usually the experts get it right but sometimes nature has other ideas and a new strain emerges. Dr John McCauley, Director of the Worldwide Influenza Centre at the Francis Crick Institute in London tells Dr Mark Porter about Aussie flu and how different flu strains pose risks to different groups of people. Cow's milk allergy is the most common food allergy among infants and it affects at least one in 50 babies, toddlers and pre-school children in the UK. It's an allergic reaction to the protein in cow's milk. There are two different types though and one type, called delayed cow's milk allergy, is often missed by health care professionals because it's easily confused with other common conditions. Lucy Wronka tells Inside Health her baby son George was ill for months with reflux, eczema and an upset stomach. It was only a chance meeting with a friend who recognised the symptoms that led to a diagnosis of delayed cow's milk allergy. Twenty four hours after diagnosis and treatment, Lucy says George was a different baby. Dr Adam Fox, paediatric allergist at the Evelina London Children's Hospital explains the difference between the two different types of cow's milk allergy and discusses new guidance for GPs and health visitors which are designed to improve diagnosis.One of Europe's largest robotic pharmacies is housed in Glasgow and this super high-tech hub has replaced fourteen separate pharmacy stores. It handles almost a hundred thousand packs of medicines a week and Inside Health's Dr Margaret McCartney, herself a GP in the city, reports on how this automation has transformed pharmacy services in Greater Glasgow and Clyde.

Can dogs smell cancer? Ever since Hippocrates the odour of disease has been used to aid diagnosis but has this simple technique been forgotten? Dr Mark Porter investigates the evidence for whether canine super noses can be used to accurately detect cancer. There have been plenty of anecdotes reported but what about hard science? Studies since 2004 from the Medical Detection Dogs Centre in Milton Keynes have shown convincing results and they've now teamed up with MIT in the US, specialists in 'e-noses'. Could devices the size of a mobile phone be used to sniff for disease?

The Chief Medical Officer has warned of a "post-antibiotic apocalypse" and "the end of modern medicine". As antibiotic resistance increases, the options to treat potentially deadly infections reduces. Inside Health's Dr Margaret McCartney discusses the latest campaign by Public Health England to remind us all not to take antibiotics when they're not needed.It's been over thirty years since there was a breakthrough in the treatment of pneumonia, but that could soon change....and from an surprising source. Researchers in Birmingham at Queen Elizabeth Hospital have been working with the cholesterol-lowering drugs, statins, and discovered that this medication can turbo-charge our immune systems, helping us to fight infection. Dr Liz Sapey, respiratory consultant and researcher tells Dr Mark Porter about the exciting possibility of tablets that cost just a few pence each, being used to treat potentially deadly lung infections like pneumonia. Epilepsy is normally controlled by anti-seizure medication but for a third of patients, pills don't work, and constant fits can have a devastating impact on the developing brain. Neurosurgery - removal or disconnection of parts of the brain where the seizures originate - is now done at a much younger age in patients with untreatable epilepsy. Operating on children takes advantage of brain plasticity. Mark visits Bristol Children's Hospital, one of four national centres which since 2011 have offered increased access to epilepsy surgery. Paediatric neurosurgeon Mike Carter is part of the national drive to operate on children before they are two years old, all to take advantage of brain plasticity. Mark meets 8 year old Lucy, 20 days after she had major surgery to remove a finger-nail sized portion deep in her brain. Lucy's father, Mark Nettle, describes how, before surgery, his daughter had suffered from multiple daily seizures with increasing weakness down the left side of her body. The possibility of ending these debilitating attacks made surgery an attractive option. Producer: Fiona Hill.

GPs have been told to ask about their patients' sexual orientation as NHS England plans to record this data for everyone using the service over the age of 16. Dr Google - are doctors' noses really being put out of joint by patients searching their symptoms on the internet to come up with their own diagnoses? Hypermobility is being double jointed and flexible and is often perceived as an asset, but for around 1 in 30 of the population it can be a problem that is often missed - and mismanaged. Plus a counterintuitive approach to help people with Chronic Obstructive Pulmonary Disease. You might think the last thing someone with breathing difficulties needs is smaller lungs, but lung reduction surgery is exactly what's being offered some people with COPD.