Lumbar methicillin-resistant Staphylococcus aureus infection caused by a peripherally inserted central catheter: A case report

Table 1 Blood and catheter bacterial culture + drug sensitivity

Sample type	Project application	Result	Antibacterial drugs	Sensitivity	KB (mm), MIC (mg/L)	Cut off point R	Cut off point S
Blood	Bacterial culture + drug sensitivity	Staphylococcus aureus (+); MRSA (+)	Penicillin G	R	≥ 0.5	≥ 0.25	≤ 0.12
			Ciprofloxacin	S	1	≥ 4	≤ 1
			Moxifloxacin	S	≤ 0.25	≥ 2	≤ 0.5
			Gentamicin	S	≤ 0.5	≥ 16	≤ 4
			Clindamycin	R	≥ 8	≥ 4	≤ 0.5
			Compound sulfamethoxazole	S	≤ 10	≥ 76	≤ 38
			Linezolid	S	2	≥ 8	≤ 4
			Benzylpenicillin	R	≥ 4	≥ 4	≤ 2
			Levofloxacin	S	0.5	≥ 4	≤ 1
			Vancomycin	S	1	≥ 16	≤ 2
			Erythromycin	R	≥ 8	≥ 8	≤ 0.5
			Tetracycline	S	≤ 1	≥ 16	≤ 4
			Tigecycline	S	≤ 0.12	-	-
			Rifampicin	S	≤ 0.5	≥ 4	≤ 1
Catheter	Bacterial culture + drug sensitivity	Staphylococcus aureus (+++); MRSA (+)	Penicillin G	R	≥ 0.5	≥ 0.25	≤ 0.12
			Ciprofloxacin	I	2	≥ 4	≤ 1
			Moxifloxacin	S	≤ 0.25	≥ 2	≤ 0.5
			Gentamicin	S	≤ 0.5	≥ 16	≤ 4
			Clindamycin	R	≥ 8	≥ 4	≤ 0.5
			Compound sulfamethoxazole	S	≤ 10	≥ 76	≤ 38
			Linezolid	S	2	≥ 8	≤ 4
			Quinupristin/dalfop ristin	S	≤ 0.25	≥ 4	≤ 1
			Benzylpenicillin	R	≥ 4	-	≤2
			Levofloxacin	S	1	≥ 4	≤ 1
			Vancomycin	S	1	≥ 16	≤ 2
			Erythromycin	R	≥ 8	≥ 8	≤ 0.5
			Tetracycline	S	≤ 1	≥ 16	≤ 4
			Tigecycline	S	≤ 0.12	-	-
			Rifampicin	S	≤ 0.5	≥ 4	≤ 1

KB: Kirby-Bauer (disk diffusion method); MIC: Minimum inhibitory concentration; MRSA: Methicillin-resistant Staphylococcus aureus; S: Sensitive; I: Intermediate; R: Resistant.