Retained Urine Volume and Bacteriuria in Traditional Versus Vented Urine Drainage Systems

Retained Urine Volume and Bacteriuria in Traditional Versus Vented Urine Drainage Systems

The purpose of this study is to see if there are differences in urine drainage between two types of indwelling bladder catheter systems (Foley catheter) in hospitalized patients. The difference between the two catheters is that one catheter is vented (the study catheter) and the other is a standard non-vented catheter. The vented catheter may drain urine better than a standard non-vented catheter.

If a vented catheter drains the bladder better than a non-vented catheter it may lower the risk of retained urine in the bladder which could help prevent urinary tract infections.

During hospitalization, while in the surgical intensive care unit beginning the day after surgery, measurements of the subject's urine drainage system will be taken at daily study visits: retained urine volume, dependent loops, incidence of bacteriuria, and thigh diameter.

Inclusion Criteria:

• Scheduled for a planned surgery
• Anticipated indwelling bladder catheter placement for greater than 24 hours
• Anticipated post-op admission to a surgical ICU

Exclusion Criteria:

• Unstable renal function as self-reported
• Anticipated bandaged postoperative suprapubic incisions
• Anatomical deformity that precludes appropriate suprapubic access for ultrasound bladder scanning
• Surgical procedure that prevents accurate core body temperature by any means other than by bladder temperature