Long-term results of endosurgical and open surgical approach for Zenker diverticulum

Table 1 Demographic data, clinical features and outcome in the patient population

	Transoral stapling (n = 181)	Stapled resection + myotomy (n = 116)
Age (median/range)	64/37-95	62/30-84
Male/female ratio	3.5:1	2.7:1
Dysphagia (%)	100	100
Aspiration (%)	23	19
Hiatal hernia/GERD (%)	9	12
Weight loss (%)	32	17
Pouch size - cm (median,range)	4/2.5-8	4/1-9
Regional anesthesia (n)	0	15
Mean operative time (min)	19	70
Postop. mortality (%)	0	0.8
Leaks from staple line (%)	0	1.7
Recurrent nerve palsy (%)	0	0.8
Dental injuries (%)	1.1	/
Conversions (%)	4.4	/
Mean hospital stay (d)	3	8
Reoperation (%)	4.4	1.7
Lost to follow-up (% patients)	9.9	18.1
Median follow-up (mo)	27	48
Asymptomatic (% patients)	92	94

Table 2 Comparison of pre- and postoperative manometric data

	Endosurgical (n = 43) Pre/post	Open (n = 24) Pre/post
Pharyngeal pressure (mmHg)	47.9/42.4	36.4/34.3
UES resting pressure (mmHg)	52.4/31.5b	38/20b
U.E.S. residual pressure (mmHg)	3.4/2	6.2/0.7a
UES length (cm)	2.5/2.3	3.1/2.4a

^aP < 0.05,

^bP < 0.01.

Table 3 Late clinical follow-up results expressed as proportion of asymptomatic patients

	Endosurgical		Open
	> 3 cm	< 3 cm
5 yr, n/n (%)	44/47 (93.6)	4/8 (50)	30/31 (96.7)
10 yr, n/n (%)	29/35 (82.8)	2/6 (33.3)	16/19 (84.2)