Long-term outcome and quality of life after transoral stapling for Zenker diverticulum

Table 1 Comparison of rate of patients with preoperative and postoperative grade 3-4 symptoms

Symptoms	Pre	Post	P
Dysphagia	75.6%	8.3%	0.001
Regurgitation	59.1%	7.5%	0.001
Respiratory symptoms	38.1%	7.8%	0.001

Table 2 Outcome of the operation according to clinical and operative variables n (%)

	Success rate	P
Age groups (yr)
< 70	35 (65.7)	0.038
> 70	65 (84.6)
Diverticulum size (cm)
< 3	31 (54.9)	0.033
> 3	69 (88.4)
Endostitch use
No	49 (68)	0.04
Yes	51 (85)