New Esoguard test can help with early detection of esophageal cancer - sometimes indicated by chronic heartburn

But if you have it all the time, it could lead to a very serious condition and in some cases, cancer. Now, there's a new screening test - the first and only of its kind - to detect precancerous issues. "I started with heartburn," said 68-year old Ignacio Perez. For the past two years, the Long Beach resident had occasional bouts of acid reflux. "Hot food or very spicy food, especially when I bend over." Chronic heartburn can lead to …