Doctors at Delhi hospital successfully removed a tablet and its aluminium blister foil stuck in the food pipe of a man using an innovative endoscopic technique, a statement said on Feb 24.

The use of upper gastrointestinal endoscopy for the removal of foreign objects in the stomach is a common practice, especially in children.

Infants and toddlers often swallow coins, toy batteries, small magnets, and drawing pins which are removed endoscopically, it said.

Cases of inadvertently swallowed dentures are reported among the elderly. This requires emergency endoscopic intervention.

According to the Chairman, the Institute of Liver, Gastroenterology and Pancreatico-biliary Sciences, SGRH, a 61-year-old man came to the emergency room with severe chest discomfort after accidentally swallowing a tablet with an aluminium blister foil cover.

It got stuck in the upper oesophagus and he was unable to swallow anything. An endoscopy was immediately done which revealed a complicated situation, the statement said.

Dr Shrihari Anikhindi, Consultant Gastroenterologist and Therapeutic Endoscopist, said, "The tablet-intact foil was stuck in the narrowest portion of upper oesophagus which did not allow any room for endoscopic manoeuvring and removal."

The aluminium foil was very rigid and had sharp edges. Hence, any forceful removal could have easily injured the oesophagus leading to devastating complications like perforation, bleeding, mediastinal infection and sepsis which would have required emergency surgery with its attendant complications, he said.

"Since direct removal from the site of impaction (oesophagus) was dangerous, we gently and slowly pushed the tablet with intact foil into the stomach. This gives us ample room for manoeuvring special accessories," said Dr Shrihari Anikhindi.

"Once it was inside the stomach, we punctured the aluminium foil using a special endoscopic needle and pushed saline under pressure which dissolved the tablet and all the contents came out of the foil in the stomach cavity," the doctor said.

As the foil contents were now emptied, it allowed the doctors folded it. This reduced the diameter and inverted the dangerous sharp edges.

Using a special accessory called endoscopic mucosal resection (EMR) cap attached to the endoscope, they were able to safely remove the folded aluminium foil out through the mouth, it said.

"Surprisingly, this is the second time we encountered such a case and have successfully used this approach on both occasions. Such cases have not been reported in the literature," he said.

"Since there is no standardised approach to such rare impacted foreign bodies, we had to think out of the box," he added.