Criteria for arterial or venous infection – one or more of the following:
(1) evidence of arterial or venous infection seen at surgery
(2) evidence of arterial or venous infection seen on histopathologic examination
(3) both of the following:
(3a) blood culture not done OR blood culture negative
(3b) one or both of the following
(3b1) organisms isolated from blood vessel removed during surgery
(3b2) purulent drainage from a vascular site
(4) all of the following
(4a) blood culture not done OR blood culture negative
(4b) semiquantiative culture method shows > 15 colonies from an intravascular cannula tip
(4c) one or more of the following
(4c1) fever (> 38°C, rectal if <= 1 year)
(4c2) hypothermia (< 37°C rectal) AND <= 1 year of age
(4c3) pain at involved vascular site
(4c4) erythema at involved vascular site
(4c5) heat at involved vascular site
(4c6) apnea AND <= 1 year of age
(4c7) bradycardia AND <= 1 year of age
(4c8) lethargy AND <= 1 year of age
(4d) no other explanation
where:
• Age <=1 year may refer to an infant (age <= 12 months) or a young child < 24 months.
• Infection of an arteriovenous graft, shunt or fistula without organisms cultured from blood is reported as CVS-VASC.
• Infection of an intravascular cannulation site without organisms cultured from blood is reported as CVS-VASC.
• An intravascular infection with organisms culture from blood is reported as BSI-LCBI.