New flexible endoscopic controlled stapler technique for the treatment of Zenker's diverticulum: A case series

Table 1 Patients data n (%)

Total number of patients	n = 17
Female	8 (47.1)
Male	9 (52.9)
Age, yr, mean (range)	69.8 (34-90)
Mean female age, yr	72.9
Mean male age, yr	66.9
Mean size of ZD, cm (range)	3.5
Accumulated food in ZD	5/17 (29.4)

ZD: Zenker’s diverticulum.

Table 2 Technical results

	Successful septotomy	Unsuccessful septotomy
Number of cases	11/17 (64.7%)	6/17 (35.3%)
Procedure time, min, mean (range)	21 (10-45)	25 (10-50)
Septum size in cm, mean (range)	2.8 (1.5-4)	4.6 (3-10)
< 3 cm	n = 4	n = 2
> 3 cm	n = 7	n = 4
Used cartridges, mean	1.3	-

Table 3 Limitations of flexible endoscopic stapler diverticulotomy n (%)

Failed stapler diverticulotomy	6/17 (35.3)
Partial	2/6 (11.8)
Complete	4/6 (23.5)
Poor neck mobility	2/4 (11.8)
Thick tissue	2/4 (11.8)

Table 4 Follow up

Total	9/11 (81.8%)
Outcome
Free of symptoms	n = 4 (44.4%)
Improved symptoms	n = 5 (55.6%)
Persisting symptoms	n = 0
Aggravation	n = 0
Septum size in cm, mean
Before treatment	2.8
After treatment	0.6
Accumulated food in ZD
Before treatment	5/17 (29.4%)
After treatment	0/9

ZD: Zenker’s diverticulum.