title: Endoscopic-assisted minimally invasive resection of a papillary muscle blood cyst in an adult patient.
abstract: We describe endoscopic-assisted minimally invasive resection of a blood cyst originating from the papillary muscle that caused severe mitral regurgitation and necessitated mitral valve replacement in an active adult woman, as well as a review of the relevant literature. An endoscopic view increases the visibility of the surgical target and facilitates a precise observation of the tumour and dissection at the appropriate layer. The On-X mechanical valve was chosen for mitral valve repair to minimize thromboembolic risk. This patient additionally benefited from endoscopic-assisted right minithoracotomy in terms of both cosmetic and functional aspects.
authors.affiliation: Cardiovascular Surgery, Keio University, Tokyo, Japan kazuma_okamoto@mac.com.
authors.forename: Kazuma
authors.initials: K
authors.lastname: Okamoto
authors.affiliation: Cardiovascular Surgery, Keio University, Tokyo, Japan.
authors.forename: Mikihiko
authors.initials: M
authors.lastname: Kudo
authors.affiliation: Cardiovascular Surgery, Keio University, Tokyo, Japan.
authors.forename: Kanako
authors.initials: K
authors.lastname: Hayashi
authors.affiliation: Cardiovascular Surgery, Keio University, Tokyo, Japan.
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Shimizu
mesh_terms: D000328:Adult; D006348:Cardiac Surgical Procedures / Q000379:methods*; D003560:Cysts / Q000175:diagnosis / Q000601:surgery*; D004452:Echocardiography; D004724:Endoscopy / Q000379:methods*; D005260:Female; D006338:Heart Neoplasms / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D019028:Magnetic Resonance Imaging, Cine; D019060:Minimally Invasive Surgical Procedures / Q000379:methods; D008943:Mitral Valve / Q000000981:diagnostic imaging / Q000601:surgery; D008944:Mitral Valve Insufficiency / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D010210:Papillary Muscles / Q000000981:diagnostic imaging / Q000601:surgery; D013908:Thoracotomy / Q000379:methods*
keywords: Cardiac tumours; Magnetic resonance imaging; Minimally invasive surgery; Mitral regurgitation; Mitral valve replacement