Heartburn Up and Coming
May 26, 2000 (San Diego) -- Twenty years ago, Karna Bardhan, MD, PhD, was the only stomach specialist in the rough-and-tumble north British mining town of Rotherham. At first, it just seemed odd that he kept seeing more and more patients with chronic heartburn -- technically known as gastroesophageal reflux disease or GERD -- but as patients began to flood his clinic he realized that a major change was underway.
Bardhan kept careful records, and thus became one of the first physicians to document the sudden and inexplicable onset of a new epidemic. "The increase in reflux disease is so colossal that one cannot help but take an interest," Bardhan says. "I believe that what we are seeing here is a major Western epidemic that is emerging."
From 1977 to 1981, Bardhan saw only 714 new cases of GERD. From 1992 to 1996, he saw over 3,800 new cases -- a fivefold increase. And he's not alone, according to fellow panelists addressing a press conference here at the Digestive Disease Week conference.
"We see this in America as well," says George Triadafilopoulos, MD, a researcher at Stanford University in Palo Alto, Calif. "This is an explosion. More and more people are seeking drugs and medical intervention."
Currently 7% of the U.S. adult population suffers from GERD. The reasons for the phenomenal increase of the disease are a mystery. "I haven't the faintest idea why this has happened," Bardhan tells WebMD. "I have spoken with physicians in China, and they don't view it as an issue. It may be that as countries industrialize, this disease increases."
Glen A. Lehman, MD, of Indiana University School of Medicine, suggests that obesity may play a role. "In the Midwest, we also see a huge epidemic, and we have an obesity rate that approaches 40%," he says. "I think that is a factor in reflux."
The GERD epidemic is not widely appreciated, because almost nobody dies directly of the disease -- although its symptoms are extremely disturbing. Like normal heartburn, GERD is the result of the rise of the acid contents of the stomach. Unlike normal heartburn, this happens almost daily to patients with GERD, who experience frequent and inappropriate relaxation of the muscle that closes the top of the stomach, allowing the acid to invade the esophagus.