PDCA cycle-based optimization of laparoscopic instrument management in digestive surgery supply rooms

Table 1 Comparison of general data between the two groups of patients, n (%)

Item	Sex		Age (years)	Disease types
	Male	Female		Gastric cancer	Colon cancer	Benign gallbladder disease	Bile duct cancer	Others
Conventional group	66 (47.8)	72 (52.2)	58.6 ± 8.32	28 (20.3)	22 (15.9)	39 (28.3)	14 (10.1)	35 (25.4)
PDCA group	109 (48.9)	114 (51.1)	56.4 ± 7.96	49 (22.0)	38 (17.0)	56 (25.1)	22 (9.9)	58 (26.0)
χ2	0.038		-1.120	0.517
P value	0.846		0.312	0.972

Table 2 Comparison of adverse event occurrence rates between the two groups, n (%)

Item	Assembly error	Part missing	Instrument damage	Packaging not standard	Total occurrence rate
Conventional group	5 (3.6)	6 (4.3)	1 (0.7)	9 (6.5)	21 (15.2)
PDCA group	1 (0.4)	2 (0.9)	0 (0.0)	3 (1.3)	6 (2.7)
χ2	5.257	4.685	1.620	7.108	19.331
P value	0.022	0.030	0.203	0.008	0.000

Table 3 Comparison of multidrug-resistant bacteria detection and infection rates between the two groups of patients, n (%)

Item	Multidrug-resistant Pseudomonas aeruginosa	Klebsiella pneumoniae	Escherichia coli	Methicillin-resistant Staphylococcus aureus	Vancomycin-resistant Enterococcus	Total detection rate
Conventional group	1 (0.7)	3 (2.2)	6 (4.3)	1 (0.7)	1 (0.7)	12 (8.7)
PDCA group	1 (0.4)	2 (0.9)	4 (1.8)	1 (0.4)	0 (0.0)	8 (3.6)
χ2	0.118	1.018	2.065	0.118	1.620	4.251
P value	0.731	0.313	0.151	0.731	0.203	0.039

Table 4 Comparison of cleaning quality and ATP test results of the two groups of laparoscopic instruments, n (%)

Item	Total number of instruments	Number of defective items detected by ATP testing	Number of defective items detected visually and lighted magnifying mirror
Conventional group	289	9 (3.1)	16 (5.5)
PDCA group	513	5 (1.0)	12 (2.3)
χ2		4.934	5.608
P value		0.026	0.018

Table 5 Satisfaction of operating room staff regarding management of the disinfection supply room, n (%)

Item	Satisfied	Basically satisfied	Unsatisfied	Total satisfaction rate (%)
Conventional group	16 (51.6)	10 (32.3)	5 (16.1)	83.9
PDCA group	26 (83.9)	4 (12.9)	1 (3.2)	96.8
χ2	7.619
P value	0.022