Arrangements of the intravenous parallel infusions with anti-reflux valves decreasing occlusion alarm delay

Joe, Han Bum; Moon, Bong Ki; Lee, Yeon-Ju; Min, Sang-Kee

doi:10.4097/kjae.2014.66.4.300

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…Depending on the use of additional disposables such as filters, antisiphon and anti-reflux valves, counter pressure may be as high as 50 mmHg in neonates and 150 mmHg in adults [15]. As our algorithms only take the deviation from the mean pressure into account (and not the absolute value Table 2 Validation set alarm delays in minutes for the regression and SD algorithms compared to calculated conventional alarm delays with an alarm threshold set at 400 mmHg 1 Calculated alarm delay for our local threshold setting of 400 mmHg 2 Paired Student t-test 3 A case was excluded due to the occurrence of a false positive that overlapped with the onset of the occlusion 4 The regression algorithm was not able detect an occlusion in this case (i.e. a false negative classification occurred)…”

Section: Discussionmentioning

confidence: 99%

“…Linear regression was used to determine the pressure increase per second during occlusions at different administration rates during the occlusion phase. The resulting regression lines were used to calculate the alarm delay (time from the start of the occlusion to the alarm) for a range of alarm thresholds found in literature (300-800 mmHg) assuming a 'worst case' baseline pressure of 150 mmHg [3,[11][12][13].…”

Section: Gathering Of Experimental Data For the Development And Evaluation Of The Algorithms Baseline Single-pump Scenariosmentioning

confidence: 99%

“…The use of higher rates (e.g. > 10 ml/h) and low-compliance IV tubing may decrease the alarm delay, but many critical drugs are restricted to lower administration rates [3].…”

Section: Introductionmentioning

confidence: 99%

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Multi-infusion with integrated multiple pressure sensing allows earlier detection of line occlusions

Doesburg

Oelen

Renes

et al. 2021

BMC Med Inform Decis Mak

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Background Occlusions of intravenous (IV) tubing can prevent vital and time-critical medication or solutions from being delivered into the bloodstream of patients receiving IV therapy. At low flow rates (≤ 1 ml/h) the alarm delay (time to an alert to the user) can be up to 2 h using conventional pressure threshold algorithms. In order to reduce alarm delays we developed and evaluated the performance of two new real-time occlusion detection algorithms and one co-occlusion detector that determines the correlation in trends in pressure changes for multiple pumps. Methods Bench-tested experimental runs were recorded in triplicate at rates of 1, 2, 4, 8, 16, and 32 ml/h. Each run consisted of 10 min of non-occluded infusion followed by a period of occluded infusion of 10 min or until a conventional occlusion alarm at 400 mmHg occurred. The first algorithm based on binary logistic regression attempts to detect occlusions based on the pump’s administration rate Q(t) and pressure sensor readings P(t). The second algorithm continuously monitored whether the actual variation in the pressure exceeded a threshold of 2 standard deviations (SD) above the baseline pressure. When a pump detected an occlusion using the SD algorithm, a third algorithm correlated the pressures of multiple pumps to detect the presence of a shared occlusion. The algorithms were evaluated using 6 bench-tested baseline single-pump occlusion scenarios, 9 single-pump validation scenarios and 7 multi-pump co-occlusion scenarios (i.e. with flow rates of 1 + 1, 1 + 2, 1 + 4, 1 + 8, 1 + 16, and 1 + 32 ml/h respectively). Alarm delay was the primary performance measure. Results In the baseline single-pump occlusion scenarios, the overall mean ± SD alarm delay of the regression and SD algorithms were 1.8 ± 0.8 min and 0.4 ± 0.2 min, respectively. Compared to the delay of the conventional alarm this corresponds to a mean time reduction of 76% (P = 0.003) and 95% (P = 0.001), respectively. In the validation scenarios the overall mean ± SD alarm delay of the regression and SD algorithms were respectively 1.8 ± 1.6 min and 0.3 ± 0.2 min, corresponding to a mean time reduction of 77% and 95%. In the multi-pump scenarios a correlation > 0.8 between multiple pump pressures after initial occlusion detection by the SD algorithm had a mean ± SD alarm delay of 0.4 ± 0.2 min. In 2 out of the 9 validation scenarios an occlusion was not detected by the regression algorithm before a conventional occlusion alarm occurred. Otherwise no occlusions were missed. Conclusions In single pumps, both the regression and SD algorithm considerably reduced alarm delay compared to conventional pressure limit-based detection. The SD algorithm appeared to be more robust than the regression algorithm. For multiple pumps the correlation algorithm reliably detected co-occlusions. The latter may be used to localize the segment of tubing in which the occlusion occurs. Trial registration Not applicable.

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Section: Discussionmentioning

confidence: 99%

Section: Gathering Of Experimental Data For the Development And Evaluation Of The Algorithms Baseline Single-pump Scenariosmentioning

confidence: 99%

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Multi-infusion with integrated multiple pressure sensing allows earlier detection of line occlusions

Doesburg

Oelen

Renes

et al. 2021

BMC Med Inform Decis Mak

View full text Add to dashboard Cite

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Device-Related Error in Patient-Controlled Analgesia: Analysis of 82,698 Patients in a Tertiary Hospital

Son

Kim

Ryu

et al. 2019

Anesthesia &Amp; Analgesia

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The incidence of PCA device-related errors was <0.2% and significantly differed according to the infusion pump type. A total of 63% of patients with PCA device-related errors suffered from adverse clinical outcomes, with no mortality. Recent technological advances may contribute to reducing the incidence and severity of PCA errors. Nonetheless, the results of this study can be used to improve patient safety and ensure quality care.

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Needle-free devices: keeping the system closed

Kelly¹,

Jones²,

Kirkham³

2017

Br J Nurs

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Health professionals are under increasing pressure to reduce costs while ensuring patient safety. As the number of vascular access devices (VADs) used in health care continues to increase, there is a need to reduce the complications of infection and occlusion associated with them. Needle-free devices (NFDs), also known as needleless connectors, have been available since the early 1990s and the type and variety of these devices has continued to develop. As well as the original aim of NFDs to maintain a closed system and to reduce the risk of needlestick injuries and blood spillage, NFDs are now designed with the aim of improving clinical outcomes by reducing the common complications of infection and catheter occlusion. As there are a number of NFDs available with specific designs, it is imperative that health professionals have an understanding of the different types and functions. This article provides an explanation of NFD design and functions and guidance and information about their benefits, as well as advice on preventing complications associated with their use.

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Arrangements of the intravenous parallel infusions with anti-reflux valves decreasing occlusion alarm delay

Cited by 3 publications

References 11 publications

Multi-infusion with integrated multiple pressure sensing allows earlier detection of line occlusions

Multi-infusion with integrated multiple pressure sensing allows earlier detection of line occlusions

Device-Related Error in Patient-Controlled Analgesia: Analysis of 82,698 Patients in a Tertiary Hospital

Needle-free devices: keeping the system closed

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