Non-exposed endoscopic wall-inversion surgery with one-step nucleic acid amplification for early gastrointestinal tumors: Personal experience and literature review

Table 1 Patient demographics and clinical results

Variables	Results
Sex
Male	5 (50)
Female	5 (50)
Age	70.4 ± 4.5 (62-78)
BMI	23.7 ± 2.1 (20.2-26.5)
ASA physical status classification
I	0
II	5
III	5
IV	0
V	0
Tumor size in mm	23.8 ± 11.6 (10-36)
Tumor location
Stomach	5
Colon	5
Operation time in min	111.5 ± 10.7 (80-145)
Negative margin	9/10
Number of nodes	2.5 ± 2.2 (1-5)
Postoperative complications	1/10
Recurrence	0
Follow-up period in mo	6.3 ± 4.2

Data are presented as n, n/total, n (%), or mean ± SD (range). All patients were included in the evaluations. ASA: American Society of Anesthesiologists; BMI: Body mass index.

Table 2 Tumor size, number of retrieved lymph nodes, and clinical and anatomical parameters of the gastric lesions

Variables	Results
Number	5
Tumor size in mm	23.5 ± 12.1 (10-36)
Primary site
Body	3 (60)
Antrum	2 (40)
Operation time in min	110.5 ± 10.9 (80-145)
Complete resection	5/5
Complications	1/5
Number of lymph nodes	2.6 ± 2.2 (1-4)
Length of hospitalization in d	3.6 ± 4.2 (1-8)
Recurrence	0

Data are presented as n, n/total, n (%), or mean ± SD (range). All patients were included in the evaluations.

Table 3 Tumor size, number of retrieved lymph nodes, and clinical and anatomical parameters of the colonic lesions

Variables	Results
Tumor number	5
Tumor size in mm	24.0 ± 10.6 (18-35)
Primary site
Right colon	2 (40)
Left colon	3 (60)
Operation time in min	112.5 ± 10.6 (105-120)
Complete resection	4/5
Complications	0/5
Number of lymph nodes	2.4 ± 2.7 (1-5)
Length of hospitalization in d	2.3 ± 1.7 (1-4)
Recurrence	0

Data are presented as n, n/total, n (%), or mean ± SD (range). All patients were included in the evaluations.