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

Table 5 Comparison of postoperative complications n (%)

	No actual appendiceal perforation (n = 1146)	Actual appendiceal perforation (n = 90)	P value
Grade 1, n (%)	5 (0.8)	0 (0.0)	1.000
Renal dysfunction	1	0
Hepatitis	1	0
Hyperamylasemia	3	0
Grade 2, n (%)	94 (8.2)	13 (14.4)	0.051
Wound infection	72	8
Urinary retention	11	1
Delayed gastric emptying	6	2
Pneumonia	2	0
Pleural effusion	2	2
Renal dysfunction	1	0
Grade 3, n (%)	14 (1.2)	7 (7.8)
Intra-abdominal abscess	9	5
Intestinal obstruction (ileus)	4	2
Intra-abdominal hemorrhage	1	0
Severe complications (grade 3-4), n (%)	14 (1.2)	7 (7.8)	< 0.001
Total complications, n (%)	113 (9.9)	20 (22.2)	0.014

Postoperative complications were classified as described by Clavien: grade 1 = deviation from the normal postoperative course without the need for pharmacological or any other intervention; grade 2 = requiring pharmacological treatment with drugs; grade 3 = requiring surgical, endoscopic, or radiological intervention; and grade 4 = life-threatening complication requiring intensive care unit management.