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Abdominal Quadrants
Digestive
system organs
Appendectomy
Appendectomy
Body 1,
front view
Digestive
system
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Acute appendicitis
[Alternative
Names]
[Definition]
[Causes, Incidence and Risk Factors]
[Symptoms]
[Signs And Tests]
[Treatment]
[Expectations (Prognosis)]
[Complications]
[Calling Your Health Care Provider]
[Prevention]
Alternative Names

appendicitis
Definition
A sudden inflammation of the appendix. The appendix is a narrow, small,
finger-shaped tube that branches off the large intestine.
Causes, Incidence and Risk Factors
Appendicitis is one of the most common causes of emergency abdominal
surgery in children. Approximately 4 appendectomies per 1000 children under
age 18 are done anually in the United States (Note: appendicitis is not
diagnosed in 100% of appendectomies). It is more common in males than
females and
incidence peaks in the late teens and early twenties. Appendicitis is
uncommon under age two but can occur. Appendicitis generally follows
obstruction of the appendix by feces (fecalith), a foreign body, or
tumor.
Symptoms of appendicitis in young children are seldom classic so diagnosis
is commonly delayed and perforation more likely. Older children and
adolesents have a more typical presentation.
Classic presentation of appendicitis begins with crampy or "colicky" pain
around the navel (periumbilical). There is usually a marked loss or total
absence of appetite (anorexia).
As the inflammation in the appendix increases the pain tends to move
downward and to the right (right lower quadrant, RLQ) and localizes directly
above the position of the appendix at a point called "McBurney's
Point". (If a line is drawn from the navel to the prominence on the
right pelvic bone (right superior iliac crest) and divided into thirds,
McBurney/s Point is 2/3 away from the navel).
The child may be quite tender when the abdomen is pressed at McBurney's
Point. When the abdomen is depressed on the left side, held momentarily, and
then rapidly released the child may experience a momentary increase in pain
(rebound). This finding suggests inflammation has spread to the peritoneum.
If the appendix ruptures the pain may disappear for a short period and the
child feels suddenly better. However, within a short period
peritonitis sets in, the pain returns, and the child becomes
progressively more ill. At this time the abdomen may become rigid and
extremely tender.
Symptoms
The
appendix is a small, finger-shaped pouch of intestinal tissue located
between the small intestine (cecum) and large intestine (colon).
The
appendix is near the junction of the small bowel and the colon. On occasion,
it may become infected. Although most people are familiar with appendicitis,
it is a relatively rare disease. It is treated by surgical removal of the
appendix (appendectomy). Recovery time for uncomplicated appendicitis is
usually just three days.
Symptoms
-
abdominal
pain
- pain may begin in the upper-middle abdomen (epigastric), then
develop to sharp localized pain
- pain may shift from the epigastric area to become most intense in
the lower right side of the abdomen ("typical" presentation), tenderness
of this area is common
- pain initially may be vague, but getting increasingly more severe
-
point tenderness
McBurney's point
Definition
A symptom in which pain is noted when pressure is applied over a
specific point on the abdomen.
Common Causes
Note: There may be other causes of point tenderness. This list
is not all inclusive, and the causes are not presented in order of
likelihood. The causes of this symptom can include unlikely diseases and
medications. Furthermore, the causes may vary based on age and gender of
the affected person, as well as on the specific characteristics of the
symptom such as exact location, quality, time course, aggravating factors,
relieving factors, and associated complaints. Use the Symptom Analysis
option to explore the possible explanations for point tenderness,
occurring alone or in combination with other problems.
Considerations
The abdomen is an area of the body easily examined by touch (palpation).
Without bony shielding, such as the rib cage around the chest, masses and
organs within the abdomen can be felt and pain can often be localized.
Two types of tenderness are recognized, rebound tenderness and point
tenderness. Rebound tenderness is a non-localizing sign and occurs when
the membrane that lines the abdominal cavity (the peritoneum) is
irritated, inflamed, or infected (peritonitis).
The most common recognized point tenderness is that of McBurney. The
McBurney point is located by drawing a line from the navel to the highest
part of the pelvic bone on the right side (the right iliac crest). Divide
the line into three equal lengths. McBurney's point is 2/3 of the way from
the navel to the iliac crest. Pressure over this point will elicit pain in
people with
appendicitis who have been
symptomatic for a period of time.
Call Your Health Care Provider If
Note: Any person with point tenderness should
be examined promptly by the health care provider!
What
To Expect At Your health Care Provider's Office
The medical history will be obtained and a
physical examination performed.
Medical history questions documenting point tenderness in detail may
include:
- time pattern
- When did the
abdominal pain associated with this point tenderness develop?
- Is this the first time that this kind of discomfort has
occurred?
- If it has occurred before, have you noticed any pattern to the
occurrences?
- other
- What other symptoms are also present?
- Is there
vomiting?
- Is there rebound tenderness (the tenderness is worse when the
area is gently pressed and then the pressure is suddenly released).
- Is there
diarrhea or
constipation?
- Is there a
fever?
The physical examination will include a detailed abdominal examination.
Diagnostic testing may include:
Interventions:
Sometimes, the history and physical examination will indicate a need
for immediate surgery (an
exploratory laparotomy or an emergency
appendectomy).
Pain medication can disguise signs and symptoms of
appendicitis and other disorders. For this reason,
pain medications are often NOT given to people with abdominal pain
until all examination and testing is completed.
After seeing your health care provider:
You may want to add a diagnosis related to point tenderness to your
personal medical record.
- abdominal pain may be worse when walking or
coughing
-
nausea and vomiting
-
fever
usually occurs within several hours
- the patient may prefer to lie with knees pulled up to abdomen to
relieve muscletension on the abdomen
Later symptoms:
Additional symptoms that may be associated with
this disease:
Signs
And Tests
When the abdomen is gently pressed in the painful area, and then the
pressure is suddenly released, the pain increases (rebound tenderness).
Touching the abdomen may cause spasm of the abdominal muscles if
peritonitis is developing. Rectal examination causes pain that is
localized on the right side. Psoas sign is positive--the person is placed on
his (her) back in a supine position and the legs are extended straight.
Tapping the heels or jarring the leg upwards causes increased pain on the
right side of the abdomen.
Appendicitis may be strongly suspected based on the following tests:
The diagnosis may be confirmed by the surgeon during an
exploratory laparotomy.
This disease may also alter the results of the following tests:
Treatment
Close observation within the first 8 to 12 hours after the onset of
symptoms is indicated.
For uncomplicated appendicitis, surgery (appendectomy)
is performed as soon as possible. Little preparation is required. If an
abscess
is suspected, the surgery may be delayed until antibiotic therapy has
reduced the infection.
Expectations
(Prognosis)
Early surgery has a death rate of less than 1%.
Complications
- perforation of the intestines
- gangrene (tissue death) of the intestines
-
peritonitis
-
abscess
Calling Your Health Care
Provider
Call your health care provider if right-lower quadrant
abdominal pain or other symptoms suggestive of appendicitis develop.
Prevention
Not preventable.
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