Por qué es un doctor de primer nivel/Professional statement/Perché è un dottore di prim’ordine
Dr Aathavan Loganayagam trained in medicine at Guy’s, King's and St. Thomas’ medical schools. He then underwent rigorous structured specialty training in gastroenterology and general internal medicine in the well respected South London training programme.
He then spent two years during postgraduate training as a research and endoscopy fellow at Guy’s and St Thomas’ Hospitals, London. His research was in the fields of pharmacogenetics, inflammatory bowel disease and gastrointestinal malignancy. He has received awards and grants for outstanding research work, including the prestigious NHS Innovation London Award.
Dr Loganayagam has numerous publications in peer reviewed journals on all aspects of gastroenterology. He is actively involved in clinical research. He has particular local expertise in the practice of personalised medicine and the utilisation of novel therapeutic agents in the treatment of complex inflammatory bowel disease. He is currently the lead clinician for endoscopy at Queen Elizabeth Hospital, Woolwich.
Diagnostic and advanced therapeutic endoscopy remains a major part of his clinical expertise, including assessment and treatment of inflammatory bowel disease, strictures, polyps and cancers.Dr Loganayagam is an approachable doctor who takes pride in his communication skills with patients. He is keen to ensure that patients are fully informed and involved in all aspects of their care.
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Abdominal pain
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Abdominal ultrasound
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Achalasia
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Acid reflux
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Alcoholic liver disease
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Alcoholism
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Anal fissure
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Ascites
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Autoimmune hepatitis
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Barrett's oesophagus
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Biopsy
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Bloated stomach
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Blood in stool (rectal bleeding)
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Bowel cancer
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Bowel cancer screening
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Bowel incontinence
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Capsule endoscopy
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Cholelithiasis (gallstones)
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Chronic diarrhoea
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Cirrhosis
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Coeliac disease
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Colic
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Colitis
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Colon cancer
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Colonoscopy
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Colorectal cancer
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Constipation
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Crohn's disease
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Diabetes
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Diarrhoea
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Digestive diseases
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Diverticular disease
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Diverticulitis
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Drug induced liver injury
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Dysmotility
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Dysphagia
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Eating disorders
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Endoscopic mucosal resection (EMR)
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Endoscopy
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Fatty liver
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FibroScan
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Food intolerance
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Food intolerance test
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Gastric balloon
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Gastric band
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Gastric bypass
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Gastrointestinal bleeding
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Gastrointestinal endoscopy
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Gastroscopy
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Halitosis
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Helicobacter pylori
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Hepatic encephalopathy
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Hepatorenal syndrome
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Hiatal hernia
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Indigestion (dyspepsia)
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Inflammatory bowel disease (IBD)
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Iron deficiency
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Irritable bowel syndrome (IBS)
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Lactose intolerance
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Lactose intolerance test
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Liver
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Liver biopsy
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Liver cancer
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Liver cyst
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Liver disease
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Liver function tests
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Malnutrition
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Morbid obesity
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Nutrition
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Obesity
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Oesophageal manometry
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Oesophageal varices
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Oesophagitis
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Pancreatic cancer
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Pancreatitis
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pH monitoring
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Piles (haemorrhoids)
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Polypectomy
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Polyps
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POSE procedure
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Primary biliary cholangitis (PBC)
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Primary sclerosing cholangitis (PSC)
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Rectal cancer
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Rectosigmoidoscopy
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Short bowel syndrome
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SIBO
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Stomach cancer
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Stomach flu
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Stomach reduction
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Stomach ulcer
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Ulcerative colitis
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Ultrasound
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Viral hepatitis
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Virtual colonoscopy
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Vitamin D deficiency
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Vomiting
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BMI The Blackheath Hospital - In clinic consultations only40-42 Lee Terrace, Blackheath SE3 9UD - London (East London)(+44) 2039703668
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LycaHealth OrpingtonCrayfields Business Park, 3 New Mill Rd, Orpington BR5 3TW - London (South London)(+44) 2039703668
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HCA UK at The ShardThe Shard, London Bridge Hospital, 32 St Thomas Street SE1 9BS - London (SE1 South Bank London)(+44) 2039703668
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BMI The Blackheath Hospital - Telephone consultations only40-42 Lee Terrace, Blackheath SE3 9UD - London (East London)(+44) 2039703668
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Remote Consultations OnlyLondon Bridge Hospital SE1 2PR - London (SE1 South Bank London)(+44) 02039703668
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E-Consultation0 -(+44)
What is giardiasis, and how does one get it?
Have you been suffering from bloating, diarrhoea, and abdominal cramps recently? If so, you may have contracted a condition known as giardiasis. Here to outline the condition's symptoms, and to explain how it is diagnosed and treated, is highly experienced and proficient consultant gastroenterologist, Dr Aathavan Loganayagam.
Can stress cause constipation?
Stress can certainly have an extremely negative effect on our daily lives, and can not only affect us mentally, but also physically and emotionally. In our latest article, highly esteemed London-based gastroenterologist, Mr Aathavan Loganayagam, reveals how being stressed can lead to uncomfortable and life-disrupting bowel-related conditions such as constipation.
Probiotics and IBS: Should you trust your gut?
It's believed that between one and two in 10 people in the UK have IBS. Many may use probiotics to reduce the everyday, yet ever annoying, symptoms of this condition. However, just how effective are they? Dr Aathavan Loganayagam, top gastroenterologist, explores this question with detailed expertise. Read on to find out more.
Bile acid malabsorption: symptoms and treatment
If there is an excess build-up of bile acids in your colon, it can lead to a condition known as bile acid malabsorption, which unfortunately can cause bloating and gas. Sounds like symptoms of irritable bowel syndrome? We asked consultant gastroenterologist Dr Aathavan Loganayagam how the conditions compare and how BAM is treated.
How might gut bacteria and IBS affect your mental health?
If you live with IBS and are no stranger to flare-ups of bloating, diarrhoea and gas, these symptoms may leave you feeling anxious as you go about your daily routine. Similarly, research shows that there is a connection between gut bacteria and your brain, which can also affect mental health. Read more from our expert gastroenterologist, now!
What to do about bloating, burping and flatulence
If you chew and swallow your food too fast or whilst talking at the same time, you may find yourself bloated and needing to burp. We asked an expert gastroenterologist Dr Aathavan Loganayagam about all of the possible reasons behind flatulence and how these symptoms can be prevented or managed.
5 possible reasons for unexplained weight loss
Normally, we are most concerned with weight gain as opposed to worrying about weight loss. But just when does losing weight become too much and what does it mean especially if it's unintentional? We spoke to one of our expert gastroenterologists Dr Aathavan Loganayagam about the possible illnesses that can lead to unexplained weight loss.
Bowel cancer: are cases on the rise in younger people?
Bowel cancer is often regarded as an old person's disease but in recent years it is increasingly being diagnosed in people aged 15 - 24 years old. Read more from our expert gastroenterologist Dr Aathavan Loganayagam about the symptoms that you should pay to attention to in cases of the disease.
Digestive enzyme supplements: do they really work?
Perhaps you've been doing some research into supplements that can help alleviate symptoms of bloating and constipation related to gastrointestinal conditions such as irritable bowel syndrome. We asked one of highly-experienced London gastroenterologists Dr Aathavan Loganayagam for his expert opinion as to whether any of the digestive enzyme supplements out there on the market really do work or not.
Constipation: causes and when to seek help
It can certainly be unpleasant and even painful to live with chronic constipation especially if you have frequent excessive straining. But just when does constipation become severe enough to require a trip to see a specialist? One of London's top gastroenterologists Dr Aathavan Loganayagam explains more.
SIBO with IBS: symptoms, treatment and diet
It may be hard to distinguish between SIBO and IBS as the symptoms are the same. Here, one of London's top gastroenterologists Dr Aathavan Loganayagam explains everything that you need to know about the condition, from diagnosis, diet and diet.
Living with constipation in IBS
Do you live with IBS and also suffer from constipation too? Our expert gastroenterologist Dr Aathavan Loganayagam is here with his tips on how you can relieve or improve bouts of constipation.
How to treat post-infectious irritable bowel syndrome
Post-infectious irritable bowel syndrome may appear suddenly as a bout of infection in the stomach and intestines, often as the result of bacteria such as Salmonella that causes food poisoning. Here, one of London's top gastroenterologists Dr Aathavan Loganayagam explains everything you need to know about the condition, including how long it lasts and how it can be treated.
How to treat travellers’ diarrhoea or IBS
If you live with irritable bowel syndrome the antibiotic Rifaximin can be taken to manage symptoms such as flatulence and bloating. The drug can also be used to treat travellers' diarrhoea meaning you don't need to fear travelling to exotic locations. Here, expert gastroenterologist Dr Aathavan Loganayagam explains how the drug works.
What are the symptoms of eosinophilic oesophagitis?
For those who suffer from conditions such as food allergies, eczema or asthma, you are more susceptible to developing an inflammatory condition called eosinophilic oesophagitis. Never heard of it before? Consultant gastroenterologist Dr Aathavan Loganayagam explains everything that you need to know.
What is microscopic colitis?
Do you regularly suffer from stomach cramps and watery diarrhoea? It could be a case of microscopic colitis, which causes inflammation of the large bowel or colon. One of our top gastroenterologists Dr Aathavan Loganayagam explains everything you need to know about the condition; from the causes to the treatment options.
Liver disease: what happens during a FibroScan?
Liver disease a serious problem in the UK. A FibroScan is a test that can accurately diagnose the amount of scarring on the liver, which is very important for determining the stage of the disease and predicting treatment responses. Here, top gastroenterologist Dr Aathavan Loganayagam explains how the test works.
How much farting is normal?
As embarrassing as it is - we all fart! Whether it's silent, stinky or odourless, it's the normal process of your body digesting food. Read more from our expert gastroenterologist Dr Aathavan Loganayagam on just how much farting is too much every day.
Who really needs to eat gluten-free?
It seems that gluten has developed a bad reputation these days, with many of us opting for gluten-free alternatives and cutting out a key part of our diet altogether. But does everyone really need to eat this way? Top gastroenterologist Dr Aathavan Loganayagam is here to explain the symptoms of the medical conditions that may require some people to eat a gluten-free diet.
When to consider a colonoscopy
By 2020 medical experts predict that well over a million colonoscopies will be performed in the UK. We've asked leading London gastroenterologist Dr Aathavan Loganayagam just why the figure is so high and whether it is necessary.
Gastroparesis: why do I feel full and nauseous when I eat?
Do you feel full quickly after only eating a small part of your meal? Is it followed by abdominal pain and feelings of nausea? It could be a case of gastroparesis. Fortunately, top gastroenterologist Dr Aathavan Loganayagam is here to explain the symptoms and how the stomach disease is diagnosed and treated.
Why worry about Barrett's oesophagus?
Barrett's oesophagus often presents with acid reflux and may leave you with ongoing symptoms of heartburn. But it is very important that the condition is diagnosed and monitored. Here, leading London gastroenterologist Dr Aathavan Loganayagam explains why.
9 ways to reduce symptoms of reflux disease
Symptoms of GORD may include heartburn, acid reflux and feelings of nausea. Consultant gastroenterologist Dr Aathavan Loganayagam gives his top tips on which lifestyle changes can help improve and manage a gastro-oesophageal reflux disease flare-up.
What happens if Helicobacter pylori goes untreated?
Helicobacter pylori are strange bacteria that live in the stomach that can lead to gastritis and inflammation. Most people do not realise that they have the condition, which can go on for years. We've asked consultant gastroenterologist Dr Aathavan Loganayagam to explain what happens if the condition is left undiagnosed and whether it can be treated.
8 ways to help prevent bowel cancer
The UK has one of the highest rates of bowel cancer in Europe, however, the disease is one of the most preventable cancers. Leading London gastroenterologist Dr Aathavan Loganayagam shares his top tips on what you can do to reduce your chances of developing the disease.
FODMAP diet: how it helps IBS
Bloated? Stomach cramps after you've eaten? It may be time to try the low FODMAP diet, a temporary eating plan that helps improve digestive symptoms. Read more from our expert gastroenterologist Dr Aathavan Loganayagam on the dietary treatment and how it works.
Microbiome: can we engineer healthy gut bacteria?
The bacteria that live in the gut perform a range of important functions but when these microorganisms become unbalanced, how can we get them back into working order again? Expert gastroenterologist Dr Aathavan Loganayagam explains how the gut bacteria can be re-engineered to aid in good health.
Gut microbiome: do poo transplants or probiotics really help?
The gut microbiome is a complex ecosystem of bacteria in the body. When it goes awry, we turn to treatments such as probiotics and poo transplants for restoration. We've asked expert gastroenterologist Dr Aathavan Loganayagam to explain if these options work in re-engineering the gut bacteria.
Oesophageal cancer: what is it and can it be treated?
Oesophageal cancer is a rare type of cancer that grows in your oesophagus (the 'food pipe', or tube) that leads from the throat to the stomach. The earlier oesophageal cancer is diagnosed and treated, the better the outcome. So, how is this difficult and challenging type of cancer dealt with? Dr Aathavan Loganayagam, a leading gastroenterologist, presents a concise guide about oesophageal cancer.
Irritable bowel syndrome (IBS) and your gut bacteria
Within our digestive tract, we all have a complex community of gut bacteria or gut flora. This mix of bacteria lines the length of your gut and are said to affect your metabolism, your immune system, and even your mood. Dr Aathavan Loganayagam, a leading gastroenterologist, discusses the recent findings that link your gut flora with irritable bowel syndrome (IBS).
Colon cancer: 5 key symptoms to know
People know that bad things may happen to their health but, of course, never consider that something as threatening as colon cancer could really happen to them. Recent reports show how younger age groups are now at risk for the disease. Leading London gastroenterologist Dr Aathavan Loganaygam is on hand with 5 cardinal symptoms to be mindful of...
What is stomach flu?
Stomach flu, or gastroenteritis, generally refers to a viral infection that causes an irritated and inflamed stomach and gastrointestinal tract. Despite the name, the stomach flu has nothing to do with the regular flu. Whilst stomach flu causes nausea, vomiting and diarrhoea, influenza (“the flu”) causes body aches, headaches, fevers, and cold-like symptoms, such as a sore throat or a runny nose. Dr Aathavan Loganayagam, a top gastroenterologist, explains the causes, symptoms and treatment of stomach flu.
Causes, prevention and treatment of abdominal bloating in a nutshell
"Bloating", the feeling of a full and swollen belly, is one of the most common complaints we hear about in the medical practice from patients, with 10 to 30% of people experiencing it. Dr Aathavan Loganayagam, a leading gastroenterologist, explains what causes bloating and how it can be dealt with.
Coeliac disease and gluten intolerance
Symptoms of coeliac disease include feeling tired, flatulence, iron deficiency and pains in the bones and joints. Expert gastroenterologist Dr Aathavan Loganayagam gives advice to those who may be suffering from the disease.
Spot the signs of pancreatic cancer
In it's early stages, pancreatic cancer is silent and painless as it grows. Leading gastroenterologist Dr Aathavan Loganayagam explains the symptoms to look out for, when they do become apparent, and what measures should be taken to prevent the disease.
Abdominal pain: when to see a doctor
We all experience stomach cramps and bloating from time to time, which is mostly a result of trapped wind. But if the abdominal pain doesn't go away and symptoms worsen, it's time to see a doctor. One of our expert gastroenterologists Dr Aathavan Loganayagam explains more...
Heartburn and acid reflux: when to see a doctor
For some people, the symptoms of heartburn can be unbearable and in some instances, there may be confusion over whether they are suffering from heartburn or a heart attack. In either case, seeking help from a doctor is necessary. Top gastroenterologist Dr Aathavan Loganayagam explains discusses heartburn and acid reflux...
Is blood in my poo normal?
A small amount of one-off bleeding from the bottom isn't usually a serious problem but it's very important to seek medical attention if the bleeding becomes very heavy. Dr Aathavan Loganayagam discusses what different colours of blood in the stool can mean and when to seek help.
Why do I feel so tired?
One of the most common symptoms of iron deficiency is feeling exhausted and fatigued. Expert gastroenterologist Dr Loganayagam discusses iron deficiency and how to incorporate more of the mineral into the body through treatment and diet.
IBS vs. IBD: what's the difference?
The two gastrointestinal diseases IBD and IBS may sound similar but the consequences are quite different. Expert Gastroenterologist Dr Aathavan Loganayagam explains the differences between both.
Inflammatory bowel disease: triggers, diet and treatment
Abdominal pain and diarrhoea are the most common symptoms of IBD but there are certain triggers, which can be avoided and managed by making healthier lifestyle choices. Leading gastroenterolgist Dr Aathavan Loganayagam explains more...
How to prevent liver disease
The liver is essential for digesting food and removing toxic substances from the body to prevent liver diseases such as hepatitis A, B, C and cirrhosis. Consultant gastroenterologist Dr Aathavan Loganayagam advises on a healthy lifestyle to prevent liver disease.
Colorectal cancer screening tests
Consultant gastroenterologist Dr Aathavan Loganayagam discusses different colorectal cancer screening tests that detect the disease in its early stages in people who have no signs.