Table 2.

Previous diagnostic studies reported in 41 adults with CVS

Diagnostic Study	Number
Esophago-Gastro-Duodenoscopies	62
Upper GI barium studies (with or without small bowel follow through)	44
Abdominal/pelvic ultrasonographies	43
Abdominal CT scans	33
Colonoscopies	24
Radionuclide Gastric Emptying Study	20
Urine porphyrins	16
Barium enemas	13
Hepatobiliary scans	10
H. pylori antibody assays	10
Cranial MRI's	9
Laparoscopies	5
Sinus radiographies	2
Endoscopic Retrograde Cholangio-Pancreatographies	1
Urine organic acid assays	1
Total studies indicative of organic etiologies for cyclic vomiting	0