Nissen Fundoplication

Nausea
The feeling of wanting to throw up (vomit).

Necrosis
Dead tissue that surrounds healthy tissue in the body.

Necrotizing Enterocolitis
A condition in which part of the tissue in the intestines is destroyed. Occurs mainly in under-weight newborn babies. A temporary ileostomy may be necessary.

Neonatal Hepatitis
Irritation of the liver with no known cause. Occurs in newborn babies. Symptoms include jaundice and liver cell changes.

Neoplasm
New and abnormal growth of tissue that may or may not cause cancer. Also called tumor.

Nissen Fundoplication
An operation to sew the top of the stomach (fundus) around the esophagus. Used to stop stomach contents from flowing back into the esophagus (reflux) and to repair a hiatal hernia.

Nontropical Sprue
See Celiac Disease.

Nonulcer Dyspepsia
Constant pain or discomfort in the upper GI tract. Symptoms include burning, nausea, and bloating, but no ulcer. Possibly caused by muscle spasms.

Norwalk Virus
A virus that may cause GI infection and diarrhea. See also Gastroenteritis.

Nutcracker Syndrome
Abnormal muscle tightening in the esophagus.