Single-Port Transumbilical Laparoscopic Appendectomy: A Preliminary Multicentric Comparative Study in 87 Patients with Acute Appendicitis

Table 2

Results concerning operative technique.

	SPAA group (SPAAG); 𝑁=46	Laparoscopic appendectomy group (LAG); 𝑁=41	𝑃 value
Trocar use
(i) Covidien SILS	39	—
(ii) Olympus TriPort	8	—
Time of trocar(s) introduction (minutes), mean (SD)	5,9 (3,0)	5,8 (1,4)	0,788
Time of surgical dissection (minutes), mean (SD)	40,4 (17,5)	35,0 (13,6)	0,110
Time of closure (minutes), mean (SD)	6,5 (2, 3)	5,6 (1,3)	0,027
Conversion to laparoscopic or open	1 (colonic cancer)	0	0,342
Bleeding (mL), mean (SD)	7 (15,2)	5 (12,2)	0,763
Drainage, 𝑛 (%)	4 (12,2)	5 (8,7)	0,729