Stomach pain, nausea and loss of appetite are common complaints, often caused by a tiny bacterium called Helicobacter pylori. This microorganism infects half the world’s population, yet many people are unaware of it. If you are also experiencing similar symptoms, it is worth finding out more about this bacterium and the modern diagnostic options available.
Helicobacter pylori infection is by no means a rare occurrence – a significant proportion of the population in Hungary carries this bacterium. The good news is that effective treatment methods are now available which make accurate diagnosis considerably easier.
In this article, we provide a detailed overview of the symptoms of Helicobacter pylori infection, the latest diagnostic methods and the most effective treatment options. You will find out when it is advisable to see a doctor and how recovery is monitored.
What is the Helicobacter pylori bacterium?
Helicobacter pylori is a spiral-shaped, Gram-negative bacterium that was discovered in 1983 by researchers Marshall and Warren. They were awarded the Nobel Prize in 2005 for their work, which clearly demonstrates the significance of their discovery for medicine.
This bacterium has a special ability: it can survive in the acidic environment of the stomach. Its secret weapon is the enzyme urease, which neutralises stomach acid, thereby enabling the bacterium to colonise the gastric mucosa.
Characteristics of the bacterium
Helicobacter pylori measures 3.5 × 0.5 micrometres and moves using 2–7 flagella. It is a microaerophile, which means it requires very little oxygen to survive. In the acidic environment of the stomach (pH = 2), it uses the enzyme urease to produce ammonia and carbon dioxide from urea, thereby creating a less acidic microenvironment around itself.
The bacterium forms a biofilm, which reduces its susceptibility to antibiotics. It produces various enzymes that facilitate colonisation and damage the cells of the gastric mucosa.
Symptoms of the infection
The symptoms of Helicobacter pylori infection can vary and are often mistaken for other gastrointestinal problems. The most common symptoms include:
Common symptoms
Stomach ache and a burning sensation: The pain usually occurs in the upper abdomen, particularly after a meal or on an empty stomach. The burning sensation is often similar to heartburn.
Nausea and vomiting: It may occur particularly in the morning or after a meal. Nausea may be constant or intermittent.
Loss of appetite: Patients often experience a loss of appetite, which can lead to weight loss.
Belching and bloating: Due to disorders of the gastrointestinal system, belching and an unpleasant feeling of bloating are common.
More severe symptoms
In approximately 15% of cases, the infection may lead to a peptic ulcer. In such cases, the following symptoms may occur:
- Severe, stabbing stomach pain
- Black or bloody stools
- Iron deficiency anaemia
- Unexpected weight loss
- Persistent fatigue
In fewer than 1% of cases, chronic infection can lead to stomach cancer or a tumour of the gastric lymph nodes (MALT lymphoma).
Diagnostic tests
There are several methods available for diagnosing Helicobacter pylori infection. In modern medicine, these are categorised as invasive and non-invasive methods.
Non-invasive tests
Breath test (urease test): This test is one of the most reliable methods. The patient drinks a special solution containing urea and then provides breath samples. If Helicobacter pylori is present, the urease enzyme breaks down the urea, and a specific isotope of carbon dioxide becomes detectable in the exhaled breath.
Stool test: The bacterial antigen can be detected in the stool. This is a simple, painless test that can be carried out at home.
Haematology: Antibodies against Helicobacter pylori can be detected in the blood. However, this method does not distinguish between a current infection and a past one.
Invasive examinations (during endoscopy)
Rapid urease test: A tissue sample taken during a gastroscopy is placed in a culture medium containing urea. If the bacterium is present, the pH changes, causing the yellow colour to turn pink or purplish-red.
Histological examination: Microscopic examination of the tissue sample using Giemsa staining or immunohistochemical methods.
Breeding: Bacteria can be cultured from the tissue sample, which makes it possible to determine antibiotic susceptibility.
PCR test: Using molecular biological methods, it is possible to detect the bacterium’s DNA and determine its antibiotic resistance.
The role of Endomedix centres in diagnostics
The state-of-the-art diagnostic systems available at Endomedix private clinics significantly improve the accuracy of detecting Helicobacter pylori infection. These technologies enable faster and more accurate diagnosis, which is particularly important for ensuring that appropriate treatment is started as soon as possible.
Treatment options
Helicobacter pylori infection is treated with a combination of antibiotics and drugs that inhibit the production of stomach acid. The aim of the treatment is to completely eliminate (eradicate) the bacterium from the body.
Triple therapy
This is the most commonly used form of treatment, which lasts for 10–14 days:
Proton pump inhibitor (PPI): To be taken twice daily; reduces the production of stomach acid. These include omeprazole, pantoprazole and esomeprazole.
Clarithromycin: 500 mg twice daily, a macrolide antibiotic.
Amoxicillin or metronidazole: 1,000 mg twice daily for amoxicillin, and 500 mg twice daily for metronidazole.
Quadruple therapy
This is used if triple therapy has not been effective, or in cases of clarithromycin resistance:
Bismuth preparation: Two tablets four times a day.
Metronidazole: 250–375 mg four times a day.
Tetracycline: 500 mg four times a day.
Proton pump inhibitor: Twice a day.
Alternative treatments
Treatment with levofloxacin: In cases of clarithromycin resistance, levofloxacin 500 mg may be administered twice daily.
Sequential therapy: First, a 5-day course of PPI and amoxicillin, followed by a 5-day course of PPI, clarithromycin and metronidazole.
Post-treatment check-up
It is extremely important to verify that eradication has been successful. The follow-up examination must be carried out at least 4 weeks after the end of treatment.
Inspection tests
Breath test: The most reliable way of monitoring recovery.
Stool test: A simple test that can be carried out at home.
Endoscopy: Only in justified cases, such as in the event of an ulcer or other complications.
Signs of recovery
In the event of successful treatment:
- The symptoms are significantly reduced or disappear
- The screening tests have come back negative
- The ulcers are healing
- Inflammation is reduced
Complications and risks
An untreated Helicobacter pylori infection can lead to serious complications:
Peptic ulcer disease
90–95 per cent of duodenal ulcers and 70 per cent of gastric ulcers are Helicobacter pylori-positive. Ulcers can lead to bleeding, perforation or pyloric obstruction.
Stomach cancer
Chronic Helicobacter pylori infection is one of the most significant risk factors for gastric cancer. The bacterium causes chronic inflammation, which can lead to atrophic gastritis, intestinal metaplasia and, ultimately, cancer.
MALT lymphoma
MALT lymphoma (gastric lymphoid tissue lymphoma) is closely associated with Helicobacter pylori infection. Early-stage MALT lymphoma often goes into remission following eradication of the bacterium.
Prevention and lifestyle advice
Prevention of infection
Adherence to hygiene standards: Wash your hands thoroughly before meals and after using the toilet.
Drinking clean water: This is particularly important when travelling.
Adequate food safety: Avoid raw or poorly prepared food.
Avoiding the sharing of cutlery: The infection spreads from person to person.
Lifestyle changes
Stress reduction: Chronic stress can impair the stomach’s defences.
A balanced diet: Eat regular meals and avoid very spicy or acidic foods.
Stopping smoking: Smoking increases the risk of developing ulcers.
Moderate alcohol consumption: Excessive alcohol consumption can damage the lining of the stomach.
Frequently asked questions
Can I pass on my Helicobacter pylori infection to others?
Helicobacter pylori is transmitted from person to person, mainly via the oral-oral or faecal-oral route. It is therefore important to maintain good hygiene, particularly to protect family members.
How effective is the treatment?
Modern treatment protocols have a success rate of 85–95%. Following successful eradication, the rate of reinfection is very low, at less than 1% per year.
What side effects might the treatment have?
The most common side effects:
- Diarrhoea or constipation
- A metallic taste in the mouth
- Vomiting
- Abdominal cramps
- Skin rash (rare)
How long does it take for the infection to clear up?
Treatment usually lasts 10–14 days. Symptoms may start to improve after just a few days, but it is advisable to wait 4 weeks before having a follow-up examination.
Could the infection return?
Following successful eradication, reinfection is very rare. If the infection does return, it is usually a new infection, not a recurrence of the previous one.
Are the tests and treatment expensive?
Diagnosis and treatment of Helicobacter pylori are services subject to a charge within the Hungarian healthcare system.
When should we see a doctor?
Immediate medical attention is required if:
- A sudden, severe stomach ache occurs
- Bloody vomit or black, tar-like stools appear
- Severe nausea and vomiting lasting for several days
- There has been an unexpected, significant loss of weight
- Yellowing of the skin or severe abdominal pain occurs
A medical consultation is recommended if:
- Persistent stomach pain
- Recurrent nausea and loss of appetite
- Frequent burping and bloating
- There have been cases of stomach cancer in the family
- The first symptoms appear in people over the age of 45
New opportunities in diagnostics
Modern medicine is constantly evolving, and new diagnostic methods are becoming available. Endomedix clinics offer innovative solutions that represent a significant step forward in the accurate and rapid detection of Helicobacter pylori infection.
The advantages of molecular diagnostics
PCR-based tests not only detect the presence of bacteria but also determine antibiotic resistance. This makes it possible to draw up a personalised treatment plan even before treatment begins.
State-of-the-art endoscopic techniques
New-generation endoscopic equipment, such as chromoendoscopy, allows for a more detailed examination of the gastric mucosa and more precise localisation of the infection.
Recovery and follow-up
Following successful eradication of Helicobacter pylori, the majority of patients experience a complete recovery. Peptic ulcers heal, symptoms disappear, and the risk of stomach cancer is significantly reduced.
Long-term benefits
Prevention of ulcer recurrence: Following successful eradication, the likelihood of the ulcer recurring falls below 10%.
Cancer prevention: Early eradication reduces the risk of stomach cancer.
Improvements in quality of life: As the symptoms subside, patients’ quality of life improves significantly.
The importance of follow-up
Regular medical check-ups remain important even after eradication, particularly if:
- He had previously suffered from peptic ulcer disease
- There is a family history of stomach cancer
- Atrophic gastritis or intestinal metaplasia was detected
Summary: The path to recovery
Helicobacter pylori infection is no longer an insurmountable problem. Modern diagnostic centres, particularly the Endomedix private clinics, offer innovative solutions that enable accurate and rapid diagnosis. Effective treatment protocols, in turn, ensure a high recovery rate.
If you are also experiencing stomach problems, don’t delay getting it checked out. Early diagnosis and treatment can prevent serious complications and restore your quality of life. Talk to your doctor about your symptoms and ask to be screened for Helicobacter pylori.
The road to recovery begins with an accurate diagnosis. Remember: a Helicobacter pylori infection can be cured. With the right treatment, you can regain your health and quality of life.
