Forum topic

7 posts / 0 new
Last post
mklaas
Midline removal with positive blood cultures?

Here's a situation we encountered here. Pt. comes into the ER. ER is unable to establish access and called ICU to come place a line under US. 2 lines were placed - one long PIV and a midline. These were inserted prior to ABX. Blood cultures were drawn at the same time as insertion. 4/4 bottles came back + with gram + cocci clusters. Because the midline was placed prior to abx therapy, intensivist is requesting to have both midline and long PIV removed as they could be seeded. It seems a bit odd to me that had we waited until the Pt. got a does of Vanc, we could retain the midline. 

Does anyone have any input/thought? 

lynncrni
This is the prevailing

This is the prevailing reference 

1.Mermel LA, Allon M, Bouza E, et al. Clinical Practice Guidelines for the Diagnosis and Management of Intravascular Catheter-Related Infection: 2009 Update by the Infectious Diseases Society of America. Clinical Infectious Diseases. 2009;49(1):1-45.

This is now in revision but there is not a new version yet. Basically it provides guidance on obtaining cultures and making meaning from those cultures taken from the suspected catheter and a separate peripheral site at the same time. If you remove the present lines, how are you supposed to infuse the medication? Any VAD can become colonized, so putting in a new PIV can also become colonized. I would not remove what I had until I have culture results to indicate that the cause is more probably than not to be the VAD in question. 

Lynn Hadaway, M.Ed., RN, NPD-BC, CRNI

Lynn Hadaway Associates, Inc.

PO Box 10

Milner, GA 30257

Website http://www.hadawayassociates.com

Office Phone 770-358-7861

mklaas
Thanks Lynn. That was my

Thanks Lynn. That was my thought. BC came back + with MRSA finally. BC were repeated from JUST THE MIDLINE yesterday (less than 24 hrs after the previous set and less than 24 hrs of abx), and they came back with...wait for it...MRSA. Based on that, they are afraid that the line is seeded, and the line is going to be pulled. The plan will be to insert either a CVC, long PIV, or another midline to give abx therapy. 

It doesn't make sense to me that we would pull a line and then insert another into the same exact environment. To me, it would seem to be more prudent to wait and then remove the line only if cultures from it come back + and peripheral fail to. 

M.K.

ICU Nurse

RN, PHRN, VA-BC, NRP

lynncrni
Well, MRSA is certainly cause

Well, MRSA is certainly cause for concern. How long has this midline been in place? Is patient responding to ABX with this current midline still in place? If not, the catheter may need to be removed. 

Lynn Hadaway, M.Ed., RN, NPD-BC, CRNI

Lynn Hadaway Associates, Inc.

PO Box 10

Milner, GA 30257

Website http://www.hadawayassociates.com

Office Phone 770-358-7861

mklaas
Pt. presented to ED on 9/12,

Pt. presented to ED on 9/12, and midline was placed the same day. Pt has been covered with ABX since day 1. VS have been stable, and Pt. has been afebrile. WBC's have varied, but are only a touch north of 12 at this point. Midline was removed this AM after rounds and discussion between pharmacy and critical care attending. 

M.K.

ICU Nurse

RN, PHRN, VA-BC, NRP

mklaas
From the guidelines:

From the guidelines:

32 Long-term catheters should be removed from patients with CRBSI associated with any of the following conditions: severe sepsis; suppurative thrombophlebitis; endocarditis; bloodstream infection that continues despite >72 h of antimicrobial therapy to which the infecting microbes are susceptible; or infections due to S. aureus, P. aeruginosa, fungi, or mycobacteria (A-II). Short-term catheters should be removed from patients with CRBSI due to gram-negative bacilli, S. aureus, enterococci, fungi, and mycobacteria (A-II).

The Pt. grew out MRSA, so the S. aureus applies, but the dx of CRBSI is not in play yet, b/c we haven't definitively nailed down that the midline is colonized. Is that correct?

Also:

33
For patients with CRBSI for whom catheter salvage is attempted, additional blood cultures should be obtained, and the catheter should be removed if blood culture results (e.g., 2 sets of blood cultures obtained on a given day; 1 set of blood cultures is acceptable for neonates) remain positive when blood samples are obtained 72 h after the initiation of appropriate therapy (B-II).
 
Citing the above, would it be reasonable to wait until the 72 hr mark of Abx therapy to draw said blood cultures to label this catheter as "colonized"?
 

M.K.

ICU Nurse

RN, PHRN, VA-BC, NRP

lynncrni
First, according to the FDA,

First, according to the FDA, a midline is a peripheral catheter and therefore a short term catheter, not a long term catheter. I don't think a midline was in the minds of these IDSA authors when they wrote this guideline. So your medical decision-makers would need to make a choice of how this guideline is applied. How is the diagnosis of CRBSI going to be made? Were blood cultures drawn from the midline and a peripheral venipuncture at the same time as described in that guideline paper? RE your last question, I would not apply this in that manner. The cultures are drawn before ABX treatment starts. I am not sure what you are trying to achieve - retaining midline or simply understanding guidelines application? Please read section of guideline about when it is and is not appropriate to leave a catheter in and treat it. I don't think this would meet that criteria. 

Lynn Hadaway, M.Ed., RN, NPD-BC, CRNI

Lynn Hadaway Associates, Inc.

PO Box 10

Milner, GA 30257

Website http://www.hadawayassociates.com

Office Phone 770-358-7861

Log in or register to post comments