Dyspepsia
and Other Symptoms of Peptic Ulcers
The most common symptoms of peptic ulcers are known
collectively as dyspepsia, and they encompass a variety of
problems in the upper abdomen, including pain, discomfort, bloating,
fullness, nausea, heartburn, regurgitation, and belching. Dyspepsia may
be persistent or recurrent. Pain can be either localized in one place or
diffuse. It may be described as burning, gnawing, or aching in the upper
abdomen or, in some cases, as a stabbing pain penetrating through the
width of the gut. Sometimes pain radiates to the back or to the chest
behind the breastbone where it seems like heartburn. Symptoms usually
occur one to three hours after a meal and can include dyspepsia or even
hunger and a feeling of being empty. Eating a meal usually relieves the
pain of a duodenal ulcer but does not relieve pain from gastric ulcers
and may even worsen them. Vomiting may relieve symptoms. Peptic ulcer
disease can also occur with only a feeling of indigestion or mild nausea
or even without dyspepsia or other symptoms at all, especially when they
are caused by NSAIDs. Because ulcers can cause chronic and hidden
bleeding, patients may experience the symptoms of anemia, including
fatigue and shortness of breath.
Emergency Symptoms
A sudden onset of symptoms, such as severe abdominal pain
even without vomiting or external bleeding, may indicate perforation and
emergency conditions. Tarry, black or bloody stools, vomiting of blood,
or vomiting of a substance with the appearance of coffee grounds could
be the sign of a serious hemorrhage. Persons who experience any of these
symptoms should go to the emergency room immediately.
Bleeding and Perforation
Although peptic ulcers are rarely lethal, the disease can be
very serious if it progresses to the point of hemorrhage or perforation
of the stomach or duodenum. Of the people who get ulcers, up to 15% will
experience some degree of bleeding. Fortunately, the incidence is
declining with the introduction of effective treatments, but it is still
one of the most common medical emergencies. Bleeding is more apt to
occur with ulcers caused by nonsteroidal anti-inflammatory drugs (NSAIDs)
than those caused by the bacteria H. pylori. NSAIDs cause
bleeding in 1% to 2% of people who are taking them. NSAID-related
stomach problems may be responsible for 60,000 hospital admissions and
over 3,000 deaths each year in American patients. Because there are
usually no symptoms until bleeding begins, physicians cannot predict
which patients taking these drugs will develop bleeding, although
elderly patients and those with serious conditions, such as congestive
heart failure, are at greatest risk. The mortality rate for bleeding
peptic ulcers is about 10%. The risk for a poor outcome is increased by
certain factors, including ongoing bleeding, abnormal blood-clotting
tests, low systolic blood pressure, mental instability, and the presence
of another serious, unstable medical condition.
Obstruction
Ulcers that form where the small intestine joins the stomach
can swell and scar, resulting in a narrowing or closing of the
intestinal opening. In such cases, a patient will vomit the entire
contents of the stomach and emergency procedures are necessary.
Stomach Cancer
Between 30% and 90% of stomach, or gastric, cancers are
linked to H. pylori, and people with stomach ulcers from the
bacteria are at twice the risk for stomach cancer than those without
such ulcers. Those with duodenal ulcers, however, appear to be at lower
risk for stomach cancer. Some evidence exists that people who harbor the
specific, virulent H. pylori genetic strain called cagA are at
even higher risk for stomach cancer.
Heart Disease
Some research had reported a very high rate of H. pylori
infection in men with coronary artery disease, but more recent work has
found no relationship between the bacteria and a risk for heart disease.
Migraine Headaches
One study found an association between H. pylori and
migraine headaches in people who also have gastrointestinal problems.
Eliminating the bacteria reduced the frequency and intensity of
migraines in half of these patients.