Silent Reflux Laryngopharyngeal Reflux (LPR)

Silent Reflux Can Cause

  • Hoarseness
  • Trouble swallowing
  • Too much throat mucus
  • A “lump” in the throat
  • Heartburn

What is Silent Reflux What is LPR?

The term REFLUX comes from a Greek word that means “backflow,” and it usually refers to “the backflow of stomach contents.” Normally, once the things that we eat reach the stomach, digestion should begin without the content of the stomach coming back up again….refluxing.

The term LARYNGOPHARYNGEAL REFLUX (LPR) refers to the backflow of the food or stomach acid all of the way back up into the larynx. (the voice box) or the pharynx (the throat). LPR can occur during the day or night, even if a person who has LPR hasn’t eaten a thing.

Not everyone with reflux has a lot of heartburn or indigestion. In fact, many people with LPR never have heartburn. This is why LPR is called SILENT REFLUX, and the terms “silent reflux” and “LPR” are often used interchangeably. Because LPR is silent, it is sometimes difficult to diagnose.


Many people with LPR do have heartburn. Some people with LPR don’t have heartburn very often, but actually about half of people who have LPR never have any heartburn at all. This is because the material that refluxes does not stay in the esophagus for very long.
In other words, the acid does not have enough time to irritate the esophagus and cause heartburn.

However, even when a small amount of refluxed material comes all the way up into the throat, other problems can occur. This is because compared to the esophagus, the voice box and the throat are much more sensitive to injury and irritation from the stomach acid. Also, LPR can sometimes affect a persons breathing and lungs.


Chronic hoarseness, throat clearing, ad cough, as well as a feeling of a lump in the throat or difficulty swallowing may be signs that you have LPR. Some people do have heartburn, too. Some people have hoarseness that comes and goes, and others have a problem with too much nose and throat drainage, that is, too much mucus or phlegm.
If you have any of these symptoms, and especially if you smoke, you should ask your doctor about LPR. The specialist who most often treats people with LPR is the Otolaryngologist (Ear, Nose, and Throat Physician).

If your doctor orders tests, this is to be sure about your diagnosis, to make sure that you don’t have any complications of LPR, and to help pick the best type of treatment for you.

The two most common tests for LPR are pH monitoring, also called pH-metry, and a barium swallow. These two tests are different, and it is common to have both tests done.

The barium swallow is an x-ray test in which you must swallow chalky material that can be seen on the x-rays.
This test shows how you swallow and it shows if there is a narrowing or other abnormality of the throat or the esophagus. It is a good test to evaluate the entire swallowing mechanism.


Ph-METRY is a special over-night test that takes about 24-hours to complete. People are not usually admitted to the hospital for this test. PH-metry is used to actually measure acid in your esophagus and throat. Some people say this test is annoying, but it is not painful.

To do this test, you will have a small, soft, flexible tube placed through your nose, which stays in your throat over night. The tube, called a “pH probe,” is connected to a small computer (a box that you wear around your waist) that measures acid in your esophagus and your throat. PH-metry is the best test for LPR, and it can help your doctor determine the best treatment for you.

How is LPR treated?

Treatment for LPR should be individualized, and your doctor will suggest the best treatment for you.
Generally, there are several treatments for LPR:
Changing habits and diet to reduce reflux
Medications to reduce stomach acid, and
Surgery to prevent reflux

Most people with LPR need to modify how and when they eat, as well as take some medication, to get well. Sometimes, nonprescription liquid antacid, such as Maalox, Gelucil, and Mylanta are recommended. When used, these antacids should be taken four times each day – one tablespoon, one hour after each meal, and before bedtime.

Dietary and lifestyle changes alone are not often enough to control LPR – medications that reduce stomach acid are also usually needed. Your doctor must prescribe these.


Control your LIFE-STYLE and your DIET!
If you use tobacco, QUIT.
Smoking makes you reflux. After every cigarette, you have some LPR.
Don’t wear clothing that is too tight, especially around the waist, (trousers, corsets, belts)
Do not lie down, just after eating…. In fact, do not eat within three hours of bedtime.
You should be on a low-fat diet.
Limit your intake of red meat.
Limit your intake of butter.
Avoid fried foods.
Avoid chocolate.
Avoid eggs.
Specifically avoid caffeine (especially coffee and tea), soda pop (especially cola), and mints.
Avoid alcoholic beverages, particularly in the evening.


Most patients with LPR require some treatment, most of the time, and some people need medicine all of the time. Some people recover completely for months or years, and then may have a relapse.

In one way, having LPR is a little like having high blood pressure – with treatment, LPR does not usually cause serious medical problems, but without treatment, LPR can be serious, even dangerous.

For people with severe LPR, or people who cannot take reflux medicine, “antireflux” surgery (to restore a new and better stomach valve) may be recommended. In people who have this surgery, most get good relief from LPR for many years.


LPR can cause serious problems. LPR can cause noisy breathing, choking episodes, breathing problems (such as asthma or bronchitis), and very uncommonly, cancer of the esophagus, lung, throat, or voice box. (For cancer to develop as a result of LPR, the LPR must be very severe and go untreated for many years.)


Yes, throat and lung breathing in infants and children can be caused or worsened by LPR. LPR is more difficult to diagnose in children, so that infants and children who may have LPR should be taken to specialist for pH-metry and other tests.