Analysis of damping characteristics of arterial catheter
blood pressure monitoring in a large intensive care unit.
Clinical review: complications and risk factors of peripheral arterial catheters
used for haemodynamic monitoring in anaesthesia and intensive care medicine.
We observed that despite aspiration of free blood from the radial arterial catheters
the trace was damped and the trace gradually improved over the next 2 hours.
After cleaning and draping, Rt IJV was located through 22G cannula,guide wire was put in, followed by sliding the 22Gx8cm vygon arterial catheter
over the guide wire into the right atrium.
Our review of the literature within the fields of critical care medicine, nursing, and physical therapy has yet to find published reports of adverse outcomes related to mobility of patients with femoral arterial catheters
in the ICU.
You immediately remove the radial arterial catheter
and begin vasodilatory treatments including warming of the contralateral upper limb, application of 2% nitroglycerin ointment and axillary brachial plexus sympathetic nerve block.
The gold-standard sample for blood-gas analysis is arterial blood obtained anaerobically via an indwelling arterial catheter
(most often sited at the radial artery in adults and the umbilical artery in neonates), or arterial puncture.
Kuvaki B, Tuncali B, Capar E 2005 A comparison of the efficacy of heparinised and non-heparinised solutions for maintenance of perioperative radial arterial catheter
patency and subsequent ccclusion Anesthesia & Analgesia 100 (4) 1117-1121
Variables affecting probability of patency of the catheter included the use of anticoagulant therapy, catheter length (less than 2 inches vs longer than 2 inches), arterial catheter
site (femoral vs other), and gender.
Furthermore, it stated that experts in critical care have highlighted problems associated with non-invasive oscillometric cuff-based monitoring, and have therefore promulgated guidelines calling for invasive blood pressure monitoring with the use of an arterial catheter
Accuracy is determined, in part, by the damping characteristics of the arterial catheter
blood pressure monitoring system.
Blinding could not be done as cannula hub was visible to the operator at the time of insertion of the arterial catheter