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Incidence of bacteremia in transesophageal echocardiography: a prospective study of 140 consecutive patients.

Abstract：

:The incidence of bacteremia related to transesophageal echocardiography was studied in 140 consecutive patients (71 women and 69 men with a mean age of 53.7 +/- 15 years). Thirty-four patients had one or more prosthetic heart valves. Blood cultures were obtained from each patient through separate venipuncture sites immediately before and after transesophageal echocardiography. An additional late blood culture was obtained in 114 patients 1 h later. The skin was cleaned with povidone-iodine and venipunctures were performed with separate butterfly needles with use of sterile gloves and drapes. Blood samples were drawn into separate syringes, transferred to aerobic and anaerobic culture bottles and processed with use of a semiautomated system. The overall incidence of blood cultures positive for bacteremia was 2% (8 of 394 bottles) and all positive cultures grew in a single blood culture bottle. Positive cultures occurred in 4 (1.4%) of 280 bottles before the procedure, in 2 (0.7%) of 280 bottles immediately after the procedure and in 2 (0.9%) of 228 late (1-h) blood culture bottles. Bacterial isolates were coagulase-negative staphylococci (n = 5), Propionibacterium (n = 2) and Moraxella (n = 1). All were considered contaminants. Mean endoscopic time in these patients was not significantly different from that in the other patients. Follow-up of patients with a blood culture positive for bacteremia revealed no clinical evidence of systemic infection. It is concluded that 1) the incidence of bacteremia related to transesophageal echocardiography is very low, and 2) the incidence of blood cultures positive for bacteremia after transesophageal echocardiography is indistinguishable from the anticipated contamination rate.

journal_name

J Am Coll Cardiol

journal_title

Journal of the American College of Cardiology

authors

Melendez LJ,Chan KL,Cheung PK,Sochowski RA,Wong S,Austin TW

doi

10.1016/0735-1097(91)90498-x

subject

Has Abstract

pub_date

1991-12-01 00:00:00

pages

1650-4

issue

eissn

0735-1097

issn

1558-3597

pii

0735-1097(91)90498-X

journal_volume

pub_type

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Incidence of bacteremia in transesophageal echocardiography: a prospective study of 140 consecutive patients.