title: Utility of preoperative anesthesia clinic videoendoscopy for airway management planning.
abstract: BACKGROUND
  The authors performed videolaryngoscopy during the preoperative anesthesia clinic evaluation of a patient with chronic dyspnea, stridor, and a previous hemilaryngectomy scheduled to undergo a series of orthopedic surgery procedures for an infected knee arthroplasty. The findings proved crucial for determining airway management.
  
  
  METHODS
  A 68-year-old man presented to the preoperative anesthesia clinic for work-up before anticipated removal of infected total knee arthroplasty hardware, placement of antibiotic spacers, incision and drainage procedures, and revision arthroplasty. The patient had previously undergone a hemilaryngectomy and tracheostomy (now closed) for squamous cell carcinoma of the right true vocal cord. The patient described chronic dyspnea with minimal exertion. Inspiratory and expiratory wheezes and intermittent inspiratory stridor were present. A transnasal videolaryngoscopy examination was performed using topical anesthesia and demonstrated significant supraglottic scarring, a narrowed glottis, and subglottic stenosis. A computed tomography study confirmed the presence of tracheomalacia with subglottic stenosis. A permanent tracheostomy was performed to establish a definitive airway before the knee arthroplasty was removed.
  
  
  CONCLUSIONS
  The case illustrates that transnasal videolaryngoscopy conducted in the preoperative anesthesia clinic is capable of providing key information to guide airway management in patients with significant upper airway pathology.
authors.affiliation: Anesthesia Service, the Clement J. Zablocki Veterans Affairs Medical Center, Milwaukee, Wisconsin, USA.
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Kallio
authors.affiliation: Anesthesia Service, the Clement J. Zablocki Veterans Affairs Medical Center, Milwaukee, Wisconsin, USA.
authors.forename: Ana E
authors.initials: AE
authors.lastname: Cox
authors.affiliation: Anesthesia Service, the Clement J. Zablocki Veterans Affairs Medical Center, Milwaukee, Wisconsin, USA.
authors.forename: Paul S
authors.initials: PS
authors.lastname: Pagel
keywords: Difficult Airway; Endotracheal Intubation; Laryngeal Carcinoma; Laryngoscopy; Patient Safety; Preoperative Anesthesia Clinic; Tracheostomy; Videoendoscopy