Jay W. Marks, MD, is a board-certified internist and gastroenterologist. He graduated from Yale University School of Medicine and trained in internal medicine and gastroenterology at UCLA/Cedars-Sinai Medical Center in Los Angeles.
Dr. Lee was born in Shanghai, China, and received his college and medical training in the United States. He is fluent in English and three Chinese dialects. He graduated with chemistry departmental honors from Harvey Mudd College. He was appointed president of AOA society at UCLA School of Medicine. He underwent internal medicine residency and gastroenterology fellowship training at Cedars Sinai Medical Center.
Push endoscopy is a useful procedure for examining and delivering therapy
in the small intestine. For example, for patients with intermittently bleeding
angiodysplasias (clusters of weakened blood vessels) located in the small
intestine beyond the reach of a standard upper endoscope, push endoscopy can
be helpful in both diagnosing the bleeding site as well as in stopping the
bleeding.
What are the limitations of push endoscopy?
Push endoscopy has its limitations. Its reach is still limited and
cannot diagnose lesions in the distal small intestine (intestine closer to the
colon). The major risks of push endoscopy are the same as other endoscopic
procedures, bleeding and perforation of the intestine, either due to passage of
the endoscope or the accompanying therapeutic procedures. Because of the use of
an overtube, the risk of perforation probably is increased over the risks of an
endoscope alone.
Crohn's disease is a chronic inflammatory disease,
primarily involving the small and large intestine, but which can
affect other parts of the digestive system as well. Abdominal pain, diarrhea, vomiting, fever, and weight loss are
common symptoms.
Digestion is the complex process of turning food you eat into the energy you need to survive. The digestive process also involves creating waste to be eliminated, and is made of a series of muscles that coordinate the movement of food.