title: Cardiac entrapment during minimally invasive aortic valve replacement.
abstract: Reduced exposure during minimally invasive valve operations poses new difficulties in intraoperative management. Transesophageal echocardiography improves intraoperative management. During a minimally invasive aortic valve replacement, we encountered unexpected hypotension due to mechanical compression of the right ventricle against the sternum. Transesophageal echocardiography facilitated rapid diagnosis of this problem. Surgeons performing these procedures should be aware of this potential problem.
authors.affiliation: Department of Cardiothoracic Surgery, University of Colorado Health Sciences Center and Denver Veterans Affairs Medical Center, 80262, USA.
authors.forename: M B
authors.initials: MB
authors.lastname: Mitchell
authors.forename: J M
authors.initials: JM
authors.lastname: Brown
authors.forename: M J
authors.initials: MJ
authors.lastname: London
mesh_terms: D001021:Aortic Valve / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000601:surgery; D017548:Echocardiography, Transesophageal; D019918:Heart Valve Prosthesis Implantation / Q000379:methods*; D006801:Humans; D007022:Hypotension / Q000000981:diagnostic imaging / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures / Q000009:adverse effects*