Intraoperative hypotension, oliguria and operation time are associated with pulmonary embolism after radical resection of head and neck cancers: a case control study.

Moreover, the expense of the hospital at discharge was much higher in the PE group [73,173(6699) yuan vs 37,800(2416) yuan, P < .001], their hospitalization was significantly longer [24 (17–26) days vs 17 (13–22) days, P = .002], and mortality was higher, but this difference did not reach statistical significance (3.6% vs 0.0%, P = .082).

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