Rol de la cintigrafía con glóbulos rojos -Tc-99m en la evaluación de hemorragia digestiva alta / 99m Tc red blood cell scintigraphy for the assessment of active gastrointestinal bleeding
Rev. méd. Chile
; 126(4): 413-8, abr. 1998. ilus, tab
Article
in Es
| LILACS
| ID: lil-212064
Responsible library:
CL1.1
ABSTRACT
Background:
99mTc red blood cell scintigraphy is a non invasive diagnostic method for low flow gastrointestinal bleeding.Aim:
To assess the diagnostic yield of this method in patients admitted with gastrointestinal bleeding in whom upper gastrointestinal endoscopy was negative. Patients andmethods:
The clinical records of 59 patients, aged 6 to 90 years old (35 male), with active gastrointestinal bleeding subjected to a 99mTc red blood cell scintigraphy were reviewed. All had non diagnostic upper gastrointestinal endoscopic studies, and in 20 a selective arteriography was performed.Results:
In 40 patients the scintigraphy was positive for gastrointestinal bleeding, and in 57 percent of these the exam was positive during the first hour. Fifteen of the 19 patients with a negative scintigraphy did not have an active clinical bleeding at the moment of the examination. In 24 patients, a final ethiological diagnosis was reached. In 93 percent of these patients scintigraphy correctly identified the bleeding site. In one patient with a negative scintigraphy, angiography disclosed a pseudo aneurysm of the splenic artery that was not bleeding actively.Conclusions:
In these patients with negative upper gastrointestinal endoscopy 99mTc red blood cell scintigraphy had a 91 percent sensitivity for the diagnosis of active gastrointestinal bleeding
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Index:
LILACS
Main subject:
Radionuclide Imaging
/
Gastrointestinal Hemorrhage
Type of study:
Observational_studies
Limits:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
Language:
Es
Journal:
Rev. méd. Chile
Journal subject:
MEDICINA
Year:
1998
Type:
Article