Parameters:
(1) type of surgery
(2) clinical factors (if operation associated with moderate risk of transfusion)
Operations associated with high risk (>= 80% chance) of blood transfusion:
(1) bilateral radical neck dissection
(2) maxillectomy with or without craniofacial resection
(3) composite resections
(4) partial mandibulectomy
Operations associated with moderate (15 to 40% chance) risk of blood transfusion:
(1) total laryngectomy with neck dissection
(2) glossectomy
(3) unilateral radical neck dissection
(4) laternal rhinotomy
The chances of being transfused during a moderate risk procedure is greater if:
(1) the patient is older (> 60 years of age)
(2) the patient has a low normal hemoglobin or is anemic prior to surgery
(3) the patient has cardiovascular and/or pulmonary health problems
Operations associated with low risk (< 5% chance) of blood transfusion:
(1) partial laryngectomy
(2) parotidectomy
(3) unilateral or bilarteral functional neck dissection
(4) total laryngectomy without neck dissection
