Determination of surgical priorities in appendicitis based on the probability of undetected appendiceal perforation

Table 4 Comparison of intraoperative and postoperative variables according to the presence of actual appendiceal perforation n (%)

	All patients(n = 1236)	No actual appendiceal perforation(n = 1146)	Actual appendiceal perforation(n = 90)	P value
Surgical technique				0.111
Open appendectomy	6 (0.5)	5 (0.5)	1 (1.1)
Lap. appendectomy
Multiport	930 (75.3)	857 (74.8)	73 (81.1)
Single-port	299 (24.2)	283 (24.7)	16 (17.8)
Operation time (min)				< 0.001
Mean ± SD	61.8 ± 25.0	61.1 ± 24.4	71.2 ± 30.1
Median (range)	55 (15-230)	55.0 (15-230)	65.0 (35-200)
Drain insertion				< 0.001
No	1110 (89.8)	1041 (90.8)	69 (76.7)
Yes	126 (10.2)	105 (9.2)	21 (23.3)
Duration prior free oral fluids				0.001
Mean ± SD	1.3 ± 0.7	1.2 ± 0.6	1.6 ± 0.6
Median (range)	1 (1-7)	1 (1-7)	1 (1-6)
Duration prior soft diet				< 0.001
Mean ± SD	1.5 ± 0.9	1.47 ± 0.9	1.92 ± 1.1
Median (range)	1 (1-8)	1 (1-8)	2 (1-8)
Dosage of analgesics				0.054
Mean ± SD	1.58 ± 3.8	1.48 ± 3.5	2.83 ± 6.5
Median (range)	1 (0-70)	1 (0-70)	1 (0-50)
Analgesics duration, median (d)				0.007
Mean ± SD	0.77 ± 1.8	0.72 ± 1.7	1.4 ± 2.2
Median (range)	0.0 (0-42)	0.0 (0-42)	1 (0-15)
Postoperative complications
Severe complications (grade 3-4)	16 (1.3)	14 (1.2)	7 (7.8)	< 0.001
Total complications	94 (7.6)	113 (9.9)	20 (22.2)	0.014
Postoperative hospital stay (d)				< 0.001
Mean ± SD	4.02 ± 2.3	3.92 ± 2.3	5.2 ± 2.9
Median (range)	4 (1-48)	3 (1-48)	4 (2-17)
Readmissions				0.714
No	1210 (97.9)	1122 (97.9)	88 (97.8)
Yes	26 (2.1)	24 (2.1)	2 (2.2)