Digestive surgery: three figures almost nobody gets right
The annual cancer risk in Barrett’s oesophagus is 0.12%, not 0.5%: the Danish cohort authors write themselves that the figure underpinning surveillance guidance has no source. Thirty-seven per cent of patients who have their gallbladder removed still have pain five years later, in a randomised trial of 1,067 patients. And the only randomised trial of screening colonoscopy shows 19% fewer cancers at thirteen years, but no demonstrated mortality reduction yet. These figures describe populations, not one patient. Noria Health arranges a full digestive work-up near Brussels within 24 to 48 hours.
The questions we are asked
- Should I have a screening colonoscopy?
- Is the stool test enough?
- What makes a good colonoscopy?
- Stones were found with no symptoms, do they need operating on?
- Will my pain go away after the operation?
- Are long-term antireflux drugs dangerous?
- After reflux surgery, will I stop the medication?
- Does my hernia need operating on now?
What the figures say
| What is measured | The figure | Source and year |
|---|---|---|
| Colorectal cancer incidence reduction, colonoscopy, at 13 years | 19%, RR 0.81 (0.71 to 0.90) | NordICC, The Lancet, 2026 |
| Mortality reduction, same trial | RR 0.88 (0.68 to 1.08), not significant | NordICC, 2026 |
| Interval cancer gap between endoscopists | 9.8 against 4.8 per 10,000 person-years | Corley, NEJM, 2014 |
| Perforation after polypectomy | 0.8 per 1,000 | Reumkens, Am J Gastroenterol, 2016 |
| People with gallstones still asymptomatic at 15 years | about 75% | Alzoubi, PLOS ONE, 2026 |
| Gallbladder patients pain-free at 5 years | 63.6% | SECURE, JAMA Surg, 2024 |
| Major bile duct injury, recent registries | 0.06% to 0.24% | Czech and Estonian registries |
| Annual cancer risk, Barrett’s without dysplasia | 0.12% (0.09 to 0.15) | Hvid-Jensen, NEJM, 2011 |
| Patients on acid suppression 10 years after antireflux surgery | 62% | Spechler, JAMA, 2001 |
Those nine lines say one thing. In digestive surgery, the procedure settles less than advertised, and doing nothing settles more than people think. That does not mean not operating: a well-performed colonoscopy halves the risk of interval cancer, and antireflux surgery controls regurgitation better than any drug. It means the useful question is not whether the procedure works, but on which precise symptom it works, and at what price.
What Noria Health does in digestive surgery, and what it does not do
Noria Health arranges a full digestive work-up near Brussels within 24 to 48 hours: consultation and precise characterisation of symptoms, upper endoscopy with systematic biopsies, colonoscopy with supervised preparation, abdominal ultrasound, liver tests, and pH-impedance or manometry where the examination justifies it. The report is issued within 24 hours, follow-up is structured at D14, D30 and D90, and surgery is considered only around day 10 if it is needed.
What Noria Health does not do: propose a cholecystectomy on the presence of stones alone, or antireflux surgery on a promise of stopping medication for good, or present a colonoscopy as a guarantee. Heavy gastrointestinal bleeding, severe abdominal pain with fever, jaundice, a complete stop of stool and gas, or vomiting blood are matters for the emergency services in your country, immediately, not for an appointment.
Who reviewed this page
Noria Health editorial team.
The digestive surgery articles
- Colonoscopy: 19% fewer cancers, mortality not yet demonstrated
- Gallstones: 37% of those operated on still have pain five years later
- Barrett: the annual cancer risk is 0.12%, not 0.5%
- Hernia, gallbladder, reflux: when to operate and when to wait
Have your case reviewed. Noria Health arranges a specialist consultation near Brussels and confirms feasibility within 24 to 48 hours. Open a case.