title: Post-tonsillectomy hemorrhage in children with hematological abnormalities.
abstract: OBJECTIVE
  Tonsillectomy is a common procedure performed in children with the main complication being post-operative hemorrhage. It is uncertain if patients with hematological abnormalities face a higher risk of post-operative hemorrhage.
  
  
  METHODS
  Retrospective chart review.
  
  
  METHODS
  Tertiary referral hospital.
  All patients with a known hematologic disorder as well as children without a hematologic abnormality undergoing tonsillectomy with or without adenoidectomy in the past two years at our institution were included in this study.
  
  
  METHODS
  We sought to determine whether children with hematologic disorders are at an increased risk of post-operative hemorrhage after surgery.
  
  
  RESULTS
  Four-hundred and sixty-two patients were identified who underwent a tonsillectomy during this time period. Fourteen patients with hematological abnormalities were identified with only one patient suffering a post-tonsillectomy hemorrhage. All patients with abnormal laboratory values prior surgery underwent medical treatment in conjunction with pediatric hematology and did not suffer a post-tonsillectomy hemorrhage. Despite a small study group, the low incidence (1/14) of post-tonsillectomy hemorrhage in patients with hematological abnormalities suggests that these patients may not be at an increased risk, especially if appropriately evaluated and treated pre-operatively.
  
  
  CONCLUSIONS
  Despite small sample size the results of our study suggest that patients with coagulation disorders may not have an increased risk of post-tonsillectomy hemorrhage when evaluated and corrected pre-operatively.
authors.affiliation: University of Texas - Medical Branch at Galveston, United States. narennv@gmail.com
authors.forename: Naren N
authors.initials: NN
authors.lastname: Venkatesan
authors.forename: Regina E
authors.initials: RE
authors.lastname: Rodman
authors.forename: Shraddha S
authors.initials: SS
authors.lastname: Mukerji
mesh_terms: D000233:Adenoidectomy / Q000009:adverse effects* / Q000379:methods; D000293:Adolescent; D000755:Anemia, Sickle Cell / Q000150:complications / Q000175:diagnosis; D001778:Blood Coagulation Disorders / Q000150:complications / Q000175:diagnosis; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006402:Hematologic Diseases / Q000150:complications* / Q000175:diagnosis*; D006801:Humans; D008297:Male; D019106:Postoperative Hemorrhage / Q000453:epidemiology* / Q000209:etiology / Q000503:physiopathology; D011300:Preoperative Care / Q000379:methods; D012016:Reference Values; D012189:Retrospective Studies; D018570:Risk Assessment; D014068:Tonsillectomy / Q000009:adverse effects* / Q000379:methods; D016896:Treatment Outcome