title: Management of patients with hereditary hemorrhagic telangiectasia undergoing general anesthesia: a cohort from a single academic center's experience.
abstract: OBJECTIVE
  Hereditary hemorrhagic telangiectasia is a rare autosomal dominant disease characterized by capillary malformation leading to multisite cutaneomucosal telangiectasias and multiorgan arteriovenous malformations, which can present challenges to anesthetic care. The primary aim of this report is to present a large cohort of patients with hereditary hemorrhagic telangiectasia undergoing general anesthesia at our institution in regard to comorbid conditions and complications of surgical and anesthetic management.
  
  
  METHODS
  A computerized search from January 1, 2002 through December 31, 2011 of the Mayo Clinic medical records database was performed for patients with hereditary hemorrhagic telangiectasia who underwent general anesthesia. Medical records were reviewed. Eligibility criteria included patients with definite or suspected hereditary hemorrhagic telangiectasia based on the Curacao diagnostic criteria who underwent general anesthesia during the study period.
  
  
  RESULTS
  We identified 74 patients with hereditary hemorrhagic telangiectasia who underwent 163 surgeries. The majority had pulmonary arteriovenous malformations (56.7%) and iron deficiency anemia (64.7%), and high levels of disease burden with a median American Society of Anesthesiologist Physical Status score of 3. Most surgeries were related to treating conditions associated with hereditary hemorrhagic telangiectasia, with the majority being procedures to the nasal mucosa for recurrent epistaxis (47.2%). A sizeable proportion of procedures to the nasal mucosa required transfusion of blood (12/77). One case of epistaxis required 11 units of blood until it was successfully controlled. Another notable complication included migration of a coil to pulmonary arteriovenous malformations into the cerebral circulation.
  
  
  CONCLUSIONS
  Surgical patients with hereditary hemorrhagic telangiectasia often present with multiorgan involvement. The anesthesia provider needs to be aware of the high prevalence of pulmonary arteriovenous malformations, which may be asymptomatic but can lead to embolic complications. Hemorrhage from epistaxis can be severe, and relatively focal procedures to the nasal mucosa can require blood transfusions.
authors.affiliation: Department of Anesthesiology, Mayo Clinic College of Medicine, Mayo Clinic, 200 First Street, SW, Rochester, MN, 55905, USA, weingarten.toby@mayo.edu.
authors.forename: Toby N
authors.initials: TN
authors.lastname: Weingarten
authors.forename: Jeffrey W
authors.initials: JW
authors.lastname: Hanson
authors.forename: Kissinger O
authors.initials: KO
authors.lastname: Anusionwu
authors.forename: Mandi L
authors.initials: ML
authors.lastname: Moncrief
authors.forename: Todd J
authors.initials: TJ
authors.lastname: Opdahl
authors.forename: Danelle D
authors.initials: DD
authors.lastname: Schneider
authors.forename: Juraj
authors.initials: J
authors.lastname: Sprung
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000768:Anesthesia, General / Q000009:adverse effects / Q000379:methods*; D001165:Arteriovenous Malformations / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D004844:Epistaxis / Q000209:etiology; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D009297:Nasal Mucosa / Q000473:pathology; D013514:Surgical Procedures, Operative / Q000379:methods; D013683:Telangiectasia, Hereditary Hemorrhagic / Q000473:pathology / Q000503:physiopathology*; D055815:Young Adult
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