| Transesophageal contrast echocardiography and color flow mapping: methods of choice for the detection of shunts at the atrial level? | |
| | |
MedLine Citation:
|
PMID: 1462912 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The detection of shunts at the atrial level is important, and a reliable means of diagnosis is required. Precordial contrast echocardiography is usually performed to detect such shunts. To investigate the advantages of transesophageal echocardiographic techniques, we studied 167 consecutive patients with both precordial and transesophageal echocardiography, using two-dimensional imaging with contrast techniques (with and without a Valsalva maneuver) and color flow mapping. A patent foramen ovale was diagnosed in 31 patients, an atrial septal defect in 11 (7 with bidirectional shunts), and a pulmonary arteriovenous fistula in 3 patients. All right-to-left shunts were detected with transesophageal contrast echocardiography. With these results used as the gold standard, the sensitivity of combined precordial techniques was 37% and that of transesophageal color flow mapping 46%. All left-to-right shunts were detected by transesophageal color flow mapping. With these results used as the gold standard, the sensitivities of both precordial color flow mapping and a transesophageal negative right atrial contrast study were 27%. We conclude that transesophageal contrast echocardiography is the echocardiographic method of choice for the detection of a right-to-left shunt at the atrial level, which cannot be excluded by negative results on precordial study or on transesophageal color flow map study. A left-to-right shunt at this level is best detected by transesophageal color flow mapping. |
| | |
Authors:
|
M A de Belder; L Tourikis; M Griffith; G Leech; A J Camm |
Publication Detail:
|
Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: American heart journal Volume: 124 ISSN: 0002-8703 ISO Abbreviation: Am. Heart J. Publication Date: 1992 Dec |
Date Detail:
|
Created Date: 1993-01-12 Completed Date: 1993-01-12 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0370465 Medline TA: Am Heart J Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 1545-50 Citation Subset: AIM; IM |
Affiliation:
|
Department of Cardiological Sciences, St. George's Hospital Medical School, Tooting, London, United Kingdom. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Arteriovenous Fistula
/
ultrasonography* Echocardiography / methods* Echocardiography, Doppler Esophagus Heart Atria / ultrasonography* Heart Septal Defects, Atrial / ultrasonography* Humans Pulmonary Artery / ultrasonography* Pulmonary Veins / ultrasonography* Regional Blood Flow Sensitivity and Specificity |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Prospective study of blood culture during transesophageal echocardiography.
Next Document: Late death after arterial switch operation for transposition of the great arteries.