Hospital stay following complex major head and neck resection: what factors play a role?
OBJECTIVE
Identify factors which have an impact on the length of postoperative hospital stay in patients undergoing major surgical resection for head and neck cancer.


METHODS
Retrospective study using hospital case notes.


METHODS
Tertiary centre.


METHODS
One hundred and eighty-four patients who underwent 191 major head and neck resections between 2006 and 2010 were identified from the head and neck oncology database. An additional cohort of 52 patients from a second centre was used to externally validate the model.


METHODS
Data collected on 13 variables including age, preoperative haemoglobin level, body mass index, timing of surgery (primary or recurrent tumour), category of surgical procedure (clean, clean-contaminated, contaminated, dirty), tracheostomy (yes or no) and duration of the operation were analysed using a multiple linear regression.


RESULTS
In the 13 parameter model, the four variables that were found to significantly (P < 0.05) prolong length of stay (LOS) were surgical wound type (clean-contaminated, P = 2.19 × 10(-6) versus clean), tracheostomy (P = 0.0034), operation time (P = 0.011) and American Society of Anaesthesiologists (ASA) grades 3 and 4 (P = 0.0067) versus 1 and 2. The statistically significant variables were used to generate a preoperative submodel without the operative time and a postoperative submodel with all four variables. Overall, the best model based on adjusted R(2) was the postoperative model. When fitted on the external data set, there was no significant difference in the residuals, indicating that the models generalise across centres.


CONCLUSIONS
Clean-contaminated wound was the most significant factor affecting the LOS, with others being ASA grades 3 and 4, longer duration of surgery and presence of a tracheostomy. Using these parameters, it is possible to predict the LOS in patients undergoing major surgical resection for head and neck cancer.
Department of Plastic Surgery, Newcastle upon Tyne Hospitals, Newcastle-Upon-Tyne, UK.
S
S
Tadiparthi
A
A
Enache
K
K
Kalidindi
J
J
O'Hara
V
V
Paleri
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005500:Follow-Up Studies; D006258:Head and Neck Neoplasms / Q000601:surgery*; D006801:Humans; D007902:Length of Stay / Q000639:trends*; D008297:Male; D008875:Middle Aged; D037981:Neck Dissection; D011184:Postoperative Period; D012189:Retrospective Studies; D012307:Risk Factors; D013997:Time Factors; D016896:Treatment Outcome; D014945:Wound Healing