Colonoscopy:
Colonoscopy is the examination of the entire colon (or large
intestine) by the insertion of a flexible light tipped tube
(colonoscope) into the rectum and hence into the colon which
allows the direct visualization of the lining of the colon.
This is used to diagnose cancer, polyps, inflammation (for
example colitis), causes of bleeding, and abnormal or questionable
x-rays. Colonoscopy is both diagnostic and therapeutic by removing
the precancerous polyps and by obtaining biopsies from them.
Current recommendation by American Cancer Society, US Preventive
Health Task Force, American College Of Gastroenterology, and AGA
recommend Colonoscopy for all over 50 years. If they are in
high-risk group (Eg: Family history of Colon Cancer) they may
need Colonoscopy at an earlier age and require more frequent
screening. Most of the cancers can be detected at an early stage
but may not be preventable. On the other hand Colon Cancer can
be preventable by early and effective screening procedures.
Colonoscopy is used as screening procedure to prevent colon cancer.
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Sigmoidoscopy:
Sigmoidoscopy is the visual examination of the inside of
the rectum and sigmoid (lower)
colon,using a flexible tube called
a sigmoidoscope. The colon, or large intestine is 5 to 6 feet
long. During the sigmoidoscopy, only the last 1 to 2 feet of
the colon is examined. During the test, your physician will
inspect the lining of the bowel to look for growth and other
abnormalities
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Esophagogastroduodenoscopy
(EGD): This is an examination of the upper digestive tract
by a flexible tube called an endoscope. The endoscope will allow
for direct visualization of the lining of your esophagus, stomach
and duodenal portion of the small intestine. EGD can diagnosis
ulcers, gastritis, tumors and causes of bleeding and pain. It
is also used for taking biopsy specimens, removing foreign objects
(coins swallowed by children), polyps to control bleeding and
to open strictures (narrow areas) that cause difficulty swallowing
with the aid of fluoroscopy (x-ray)
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Esophageal
Manometry and 24-Hour PH Testing: The esophagus is the food
pipe that carries food and liquids from the throat to the stomach.
Although it seems like a simple organ, the esophagus is not
a rigid tube. the wall of the esophagus contains muscle that
automatically contracts whenever a person swallows. The contraction
occurs as a sweeping wave(peristalsis) down the esophagus. It
literally strips the food or liquid from the throat to the stomach.
Another
important part of the esophagus is the lower valve muscle(lower
esophageal sphincter,or LES ). this is a specialized muscle
that remains closed most of the time, only opening when swallowed
food is moved down the esophagus or when a person burps or vomits.
This muscle protects the lower esophagus from caustic stomach
acid and bile. These substances of course cause the discomfort
of heartburn and in time can lead to damage in the esophagus.
Everyone has heartburn at times, especially after a large or
fatty meal.
Manometry
is the recording of muscle pressures within an organ. Esophageal
manometry measures the pressure within the esophagus. It can
evaluate the action of the stripping muscle waves in the main
portion of the esophagus as well as the muscle valve at the
end of it. This test will record acidity as it refluxes from
the stomach back up into the esophagus.
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Laparoscopy
(Peritoneoscopy): Laparoscopy, or Peritoneoscopy is a procedure
in which the physician introduces a small laparoscope through
the abdominal wall where the liver and abdominal cavity can
be evaluated for evidence of tumors, inflammation, infection,
or scarring . Instruments can be passed through the laparoscope
or guided from another site under direct vision to take a sample
(biopsy) of tissue.
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Endoscopic
Retrograde Cholangiopancreatography (ERCP): This is an examination
of the bile and pancreatic ducts using a flexible tube called
an endoscope. The endoscope is passed through the mouth, esophagus,
stomach, and into the duodenum (first portion of the small intestine).
The opening from the bile duct and pancreatic duct is identified.
A small plastic tube (cannula) is then passed through the endoscope
into the opening and directed into the bile duct and/or pancreatic
duct. Contrast material (x- ray dye) is then injected through
the cannula into the ducts and x-rays are taken.
ERCP can
diagnose many diseases of the pancreas, bile ducts, liver and
gall bladder including the presence of stones. An abnormality
suspected by clinical history, blood tests or x-ray can be confirmed
and studied in detail with ERCP.
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Liver
Biopsy: Liver
biopsy is a diagnostic procedure in which a special needle is
introduced into the liver to obtain a tissue specimen for pathological
examination. The procedure is performed under a local anesthetic.
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Hemorrhoid
Coagulation: Hemorrhoids are swelling in the rectum or anal
area that may protrude through the anus on straining. They usually
contain enlarged veins and are most common in people over the
age of 50. Three out of four people will develop hemorrhoids
at some time in their lives.
Infrared
Coagulation(IRC) is the most widely used office treatment for
hemorrhoids and is preferred over other methods because it is
fast, well tolerated by patients, and virtually problem-free.
A small probe contacts the area above the hemorrhoid, exposing
the tissue to a burst of infrared light for about one second.
This coagulates the veins above the hemorrhoid causing it to
shrink and recede.
Another
office treatment is the banding of hemorrhoids. With the use
of a sigmoidoscope, a small amount of suction is applied to
elevate the hemorrhoid so that a small rubber band can be placed
at the base of the hemorrhoid. The rubber band cuts off circulation
to the hemorrhoid and the tissue will eventually slough off.
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PY
Test: The urea breath test (i.e., the PYtest) is the only
diagnostic test that can determine the presence of H. pylori
without the use of a scope. It is safe, accurate and easy to
perform and also is much less expensive than a scope and biopsy
for diagnosis.
The PYtest
capsule contains sugar beads coated with small amounts of chemical
called urea. Urea is naturally found in the human body, and
the amount in the capsule is much smaller than the head of a
pin. The urea in the PYtest had been labeled with a naturally
occurring radioactive tracer called carbon-14, so it can be
detected after it is taken into the body.
After the
capsule is swallowed, it takes about three minutes to dissolve
in the stomach. If the C-urea comes into contact with H. pylori,
it is immediately broken down into C-carbon dioxide ammonia.
The carbon dioxide enters the bloodstream and is exhaled by
the patient.
Ten minutes
after ingesting the capsule, a breath sample is collected in
a balloon. The breath sample is then analyzed; if enough of
the C is present, the patient has H.pylori.
If H. pylori
is not present, the C urea simply washes through the stomach
and is passed in the urine.
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H2
Breath Test (for Lactose Intolerance): Lactose intolerance
develops when the body has difficulty digesting whole and skim
milk and other dairy products. Lactose is a milk sugar and like
most sugars, it is broken down by enzymes in the intestinal
tract so it can be absorbed as an energy source. The enzyme
that breaks down lactose is called lactase. When the intestine
does not contain lactase, then lactose intolerance can occur.
It is a troublesome and annoying problem, but it is never a
serious one.
As commonly
expected, infants and small children have the enzyme lactase
so they can digest mothers' milk. However, during childhood,
lactase begins to disappear in many people. Some ethnic groups
are more likely to develop lactose intolerance. By adolescence,
it is gone in about 75% of African Americans, Jews, Native Americans,
Mexicans, and in 90% of Asians. so the condition is very common.
·
Hydrogen Breath Test - When lactose is broken down by the colon's
bacteria, hydrogen is released, which then passes out through
the lungs. The amount of hydrogen released after a lactose meal
can indicate a problem. This test detects a lactose intolerance
(not being able to digest sugar lactose in various food items)
by showing a high amount of hydrogen in the air you breath out.
This is done by drinking a lactose solution (a sugar water )
and having breath samples taken by the blowing into a mask.
This test takes approximately 3 1/2 hours in our office.
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Ultrasound Endoscope:
Under IV conscious sedation, a specialized endoscope is inserted into the mouth, esophagus and stomach. This type of
scope is connected to an ultrasound machine. By using sound waves, it provides visualization of the wall and all layers of GI tract as well
as outside organs namely lymph nodes and other growths.
This is the best modality available to evaluate tumors in the wall of the GI tract as well as tissue sampling of
these tumors. This method is used for adequate cancer staging to evaluate the need for surgical intervention. In many cases it will prevent
unnecessary surgical intervention.
It has greater accuracy for local staging compared to CT Scan and MRI. This is highly useful in staging of
- Esophageal Cancer
- Pancreatic Cancer
- Lung Cancer
- Rectal Cancer
- Evaluation of sub mucosal tumors in GI tract
This method may help in relief of severe cancer pain by injecting anesthetic agent and by blocking nerves (Celiac
Block).
Although this is highly useful in cancer staging because of steep learning curve only few experienced physicians
are able to perform this technique. We are fortunate in providing this service in our center on out patient basis.
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Rectal
Motility And Rectal Suction Biopsy: These
tests are done by a pediatric gastroenterologist. The motility
study is done with a balloon catheter, connected to a computer.
It indicates the strength of the anal sphincter and is usually
done on children with constipation problems.
The rectal
suction biopsy is done with a small instrument that is inserted
a short distance into the rectum and a small piece of tissue
is taken. This test is specific for Hirschsprung's disease -
diminished peristalsis of the colon.
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Abdominal
Paracentesis: Fluid is accumulated in the abdomen, caused
by various diseases. A short needle is inserted into the abdomen,
under local sedation, to drain excess fluid from the abdomen.
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Video
Capsule Endoscopy:
Gastroenterology Consultants, S.C. is now among the first in
the nation to use a clinically proven medical technology that
allows physicians to see what no one has ever been able to
fully capture before - the entire 21 feet of the human small
intestine. The PillCam Capsule Endoscope,
or camera in a pill, was pioneered by Given Imaging Corporation
(Nasdaq: GIVN) to give patients a non-invasive option for
diagnosis of certain small intestine disorders.
Approximately
70 million Americans currently suffer from gastrointestinal
troubles, including disorders such as obscure bleeding, Crohn's
Disease, malabsorption or Celiac Disease, and intestinal
tumors. However, many of these conditions go undiagnosed,
or are treated with trial and error, due to the limited diagnostic
options available for this region of the body. Given Imaging's
PillCam Capsule Endoscope significantly improves the chances
of accurate diagnosis for many previously undiagnosed small
intestine disorders.
The capsule,
which is taken with a sip of water, just like a vitamin, passes
naturally through the digestive tract, recording video images
that are transmitted to and then stored on a recorder belt worn
throughout the day. Eight hours after swallowing the capsule,
the patient returns the belt to the physician's office. The
physician then views the images using the Given Imaging workstation
and RAPID software, and later reports his or her findings back
to the patient.
About Given
Imaging Corporation
Given Imaging produces and markets the Given®
Diagnostic System featuring its PillCam Capsule Endoscope,
a fundamentally new approach to examining the gastrointestinal
tract. The system uses a disposable miniature video camera
contained in a capsule that is ingested by a patient and delivers
high quality color images in a painless and noninvasive manner.
The test can be conducted while a patient continues normal
daily activities. The system received clearance from the FDA
in August 2001. Many patients suffering from diseases of the
small intestine such as obscure bleeding, Crohn's Disease,
malabsorption (Celiac disease), and intestinal tumors have
already benefited from this innovative technology.
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Sedation:
There are two types of sedation administered at our facility: conscious sedation and monitored anesthesia care
(MAC). The type of sedation administered to each patient depends upon the patient's medical history and the preference of the physician
performing the endoscopy.
Conscious sedation is administered by registered nurses (RN) under the supervision of a physician. The goal of
conscious sedation is to decrease anxiety and pain during the patient's procedure. Patient response and degree of sedation are variable
during conscious sedation. Level of sedation and vital signs are monitored by the RN throughout the procedure. Most patients receiving
conscious sedation tolerate their procedure well.
MAC is a safe and effective option for patients undergoing procedures such as endoscopy. Patients that receive
MAC are typically more deeply sedated than patients receiving conscious sedation. MAC allows most patients to recover more quickly than
conscious sedation and resume their normal daily activities in a shorter period of time after their endoscopy. Medication is injected into
the bloodstream through an IV producing a semi-conscious state. Anxiety level will be reduced along with partial/total amnesia. Proper
monitoring is essential and includes breathing, heart rate/rhythm, blood pressure and oxygen monitors. A Certified Registered Nurse
Anesthetist (CRNA) administers MAC. CRNA's are advance practice nurses that work in collaboration with other qualified healthcare
professionals. CRNA's provide 65% of all anesthetics given to patients each year in the United States. President George W. Bush received MAC
anesthesia during his recent colonoscopy.
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