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Gastro-oesophageal reflux disease may not increase risk of esophageal cancer

Written By : Dr. Kamal Kant Kohli Published On 2023-09-18T20:00:37+05:30  |  Updated On 18 Sept 2023 8:00 PM IST
Gastro-oesophageal reflux disease may not increase risk of esophageal cancer
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Reflux disease manifests as acid regurgitation and heartburn and is a known risk factor for oesophageal cancer. However, a new study published in The BMJ by researchers at Karolinska Institutet now reports that the majority of patients do not have a higher risk of cancer. A large-scale study from three Nordic countries shows that the cancer risk is only elevated in patients whom gastroscopy reveals to have changes in the oesophageal mucosa.

­“This is a gratifying result since reflux disease is a very common condition and most patients are found to have a completely normal mucus membrane on gastroscopic examination,” says the study’s first author Dag Holmberg, researcher at the Department of Molecular Medicine and Surgery, Karolinska Institutet and resident doctor of surgery at Karolinska University Hospital in Sweden.

In reflux disease, acidic stomach contents leak into the oesophagus. This can sometimes cause inflammation in the oesophageal mucus membrane (oesophagitis), which is diagnosed via gastroscopy. It is common knowledge that reflux disease increases the risk of oesophageal cancer, but what the cancer risk is for patients with normal mucosa has remained unknown.

The symptoms of reflux disease can come and go but generally persist, which means that many patients frequently seek medical attention and often undergo repeated gastroscopies to detect mucosal lesions or prodromal cancer.

“Our study suggests that these repeated gastroscopies are probably unnecessary for people with reflux disease who have a normal oesophageal mucosa,” says Dr Holmberg. “These findings should be reassuring for this large patient group and can guide GPs who often treat them.”

The present study is based on national health data registries in Sweden, Denmark and Finland, and included over 285,000 individuals with reflux disease and no gastroscopic evidence of oesophagitis. The patients were followed for up to 31 years and the researchers registered all cases of oesophageal cancer.

The cancer risk was then compared with that for individuals from the general population matched by age and sex and at the same period in the three countries. No increased risk of oesophageal cancer was observed in patients with reflux disease and a normal mucus membrane.

By way of comparison, the researchers also analysed the cancer risk in over 200,000 individuals with reflux disease and oesophagitis. These people were at a clearly increased relative risk of developing oesophageal cancer.

“We now intend to examine what factors other than oesophagitis can be linked to tumour growth in people with reflux disease,” says the study’s last author Jesper Lagergren, professor of surgery at the Department of Molecular Medicine and Surgery, Karolinska Institutet, and consultant surgeon at Karolinska University Hospital.

Reference:

Holmberg D, Santoni G, von Euler-Chelpin M, Färkkilä M, Kauppila J H, Maret-Ouda J et al. Non-erosive gastro-oesophageal reflux disease and incidence of oesophageal adenocarcinoma in three Nordic countries: population based cohort study BMJ 2023; 382 :e076017 doi:10.1136/bmj-2023-076017.

The BMJcancerreflux diseaseoesophageal cancerprodromal cancer
Source : The BMJ
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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