A Retrospective Analysis on the Effects and Complications of Endoscope-Assisted Transoral Approach and Lateral Cervical Approach in the Resection of Parapharyngeal Space Tumors

Table 1

Comparison of operation time and intraoperative blood loss ().

Group	N	Operation time (min)	Intraoperative bleeding volume (ml)
Control group	37	109.86 ± 33.95	162.43 ± 93.70
Observation group	32	91.72 ± 31.24	118.13 ± 78.46
t		2.296	2.110
		0.025	0.039