An analysis of the effect of venous resistance on the performance of gravity-fed intravenous infusion systems

Goodie, David B.; Philip, James H.

doi:10.1007/bf02899506

Cited by 12 publications

(2 citation statements)

References 17 publications

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“…This may be clinically indicated when pre-hospital times are extended as continuing to practice permissive hypotension or limiting resuscitation volumes beyond one hour, may result in end-organ failure or death [10]. To achieve the maximum benefit from a large-bore cannula, a suitably large vein should be cannulated [11].…”

Section: Discussionmentioning

confidence: 99%

Using Body Weight as a Pre-Hospital Fluid Infusion Device: The Relationship Between Under-Body Position and Flow Rate JL

Tong

2008

J R Army Med Corps

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This study was designed to identify the most effective underbody position when using the patient's own body weight as an infusion device. Twenty volunteers had an air-less 500 ml bag of saline located at various under-body positions. Mean pressures and flow rates through a 14G cannula were measured in vitro at room temperature. Locating the fluid bag at the buttock cleft delivered the highest mean flow rate at 135 ml/min. This underbody position may provide flow rates sufficient to achieve the clinical aim of fluid resuscitation in the military pre-hospital environment.

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Section: Discussionmentioning

confidence: 99%

Using Body Weight as a Pre-Hospital Fluid Infusion Device: The Relationship Between Under-Body Position and Flow Rate JL

Tong

2008

J R Army Med Corps

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“…Firstly 18G cannulae are very commonly used by both ambulance and hospital staff despite the well recognised effect of slowing infusion rates. Secondly, a recent study has shown that the effect of venous resistance is greatest in large bore cannulae and total flow through two smaller cannulae in separate veins will exceed that through a single large cannula throughout much of the clinical range of venous resistance 8 .…”

Section: Discussionmentioning

confidence: 99%

Resistance to flow through a needle‐free injection port

Morris

1995

Emergency Medicine

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AimTo examine the effect of the Braun Reflux valve on flow rates of crystalloid and colloid solutions with different size cannulae. Method100ml aliquots of normal saline and Haemaccel were run through both 14 and 18 gauge cannulae from a fixed height of 1 metre. Ten measurements were made for each fluid with each cannula size then repeated with the Reflux valve interposed between the giving set and cannula for a further 10 measurements. ResultsThe Reflux valve increased the resistance to flow under all conditions examined (p<0.0001). However, the actual changes in flow rates were relatively small, maximum being 12% (9.9 L/hr without valve, 8.7 L/hr with valve). ConclusionsThis study found that the valve caused a statistically significant reduction in flow rates under a variety of conditions, but the clinical significance of this reduction is important only under the most extieme circumstances. Because it has only a minor effect on resistance to flow, the authors recommend the routine use of this valve on peripheral cannulae to reduce the risk of needlestick injury and blood spillage.

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Intravenous infusion: Understanding the technical side can improve clinical performance

Elad

1994

J Clin Monit

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An analysis of the effect of venous resistance on the performance of gravity-fed intravenous infusion systems

Cited by 12 publications

References 17 publications

Using Body Weight as a Pre-Hospital Fluid Infusion Device: The Relationship Between Under-Body Position and Flow Rate JL

Using Body Weight as a Pre-Hospital Fluid Infusion Device: The Relationship Between Under-Body Position and Flow Rate JL

Resistance to flow through a needle‐free injection port

Intravenous infusion: Understanding the technical side can improve clinical performance

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