title: Esophageal overtube facilitation of transesophageal echocardiography in patients with previously difficult esophageal intubation.
abstract: BACKGROUND
  In upper endoscopy, overtubes protect the hypopharynx and esophagus in patients requiring multiple esophageal intubations. Transesophageal echocardiography (TEE) is frequently used in general cardiology practice to provide high-resolution, real-time images of cardiac structures that are often not visualized by transthoracic imaging alone. Patients with a history of esophageal disorders or difficult esophageal intubations may have increased risk for complications from the echoprobe. An esophageal overtube may facilitate TEE in such patients.
  
  
  OBJECTIVE
  We sought to evaluate the usefulness of upper endoscopy with placement of an esophageal overtube to facilitate TEE in patients with prior difficult esophageal intubations.
  
  
  METHODS
  We performed upper endoscopy, followed by placement of an esophageal overtube, in 4 patients who had an unsuccessful intubation with the TEE probe. The endoscopic procedures were successfully completed, thus, allowing for uneventful subsequent TEE.
  
  
  CONCLUSIONS
  Upper endoscopy with placement of an esophageal overtube may allow for safe successful completion of TEE in patients with previously unsuccessful blind esophageal intubation.
authors.affiliation: Division of Cardiovascular Diseases, Mayo Clinic, Scottsdale, Arizona 85259, USA.
authors.forename: Christina S
authors.initials: CS
authors.lastname: Reuss
authors.forename: Stuart L
authors.initials: SL
authors.lastname: Triester
authors.forename: John J
authors.initials: JJ
authors.lastname: Lynch
authors.forename: Russell I
authors.initials: RI
authors.lastname: Heigh
authors.forename: David E
authors.initials: DE
authors.lastname: Fleischer
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017548:Echocardiography, Transesophageal / Q000295:instrumentation / Q000379:methods*; D019160:Endosonography / Q000295:instrumentation / Q000379:methods*; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000295:instrumentation / Q000379:methods*; D007442:Intubation, Intratracheal / Q000295:instrumentation / Q000379:methods*; D008297:Male