Biomaterial Database

Using radionuclide esophageal emptying test to evaluate pneumatic dilatation effects for achalasia. 2001

Y Y Shen, and Y C Shiau, and S S Sun, and C H Kao

Department of Nuclear Medicine, Shin Kong Wu Ho-Su Memorial Hospital, Taipei.

OBJECTIVE Radionuclide esophageal emptying test using a solid meal is a simple, noninvasive, and physiologic test of esophageal function. METHODS In this study, we evaluated esophageal emptying using an isotope-labeled solid meal (an egg salad sandwich labeled with 99mTc-MAA) in the assessment of pneumatic dilatation treatment in achalasia. Twenty achalasic patients (12 males, 8 females, age: 51.4 +/- 13.0 years) underwent esophageal emptying measurement before and after pneumatic dilatation. After treatment, the dysphagic symptoms of all patients improved. RESULTS In comparison with the pretreatment test, the posttreatment retention fraction at 1, 5, 10, and 15 min were significantly lower (P < 0.001). CONCLUSIONS The results suggest that radionuclide esophageal emptying test using a solid meal remains a useful objective study of esophageal function and may have an important future role in the follow-up evaluation of treatment for achalasia.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D011877	Radionuclide Imaging	The production of an image obtained by cameras that detect the radioactive emissions of an injected radionuclide as it has distributed differentially throughout tissues in the body. The image obtained from a moving detector is called a scan, while the image obtained from a stationary camera device is called a scintiphotograph.	Gamma Camera Imaging,Radioisotope Scanning,Scanning, Radioisotope,Scintigraphy,Scintiphotography,Imaging, Gamma Camera,Imaging, Radionuclide
D004106	Dilatation	The act of dilating.	Dilation,Dilatations,Dilations
D004931	Esophageal Achalasia	A motility disorder of the ESOPHAGUS in which the LOWER ESOPHAGEAL SPHINCTER (near the CARDIA) fails to relax resulting in functional obstruction of the esophagus, and DYSPHAGIA. Achalasia is characterized by a grossly contorted and dilated esophagus (megaesophagus).	Achalasia, Esophageal,Cardiospasm,Megaesophagus,Achalasia,Achalasias,Achalasias, Esophageal,Cardiospasms,Esophageal Achalasias
D004947	Esophagus	The muscular membranous segment between the PHARYNX and the STOMACH in the UPPER GASTROINTESTINAL TRACT.
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults