Optimization of a sensor head for blood temperature measurement during hemodialysis

Kraemer, Matthias; Steil, H.; Polaschegg, Hans‐Dietrich

doi:10.1109/iembs.1992.5761948

Cited by 8 publications

(3 citation statements)

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“…The technique to measure arterial and venous line temperatures with the required accuracy without direct blood contact is realized in the blood temperature monitor (BTM) (Fresenius Medical Care, Bad Homburg, Germany) (24). The BTM is a module built to fit all current Fresenius HD machines.…”

Section: Blood Temperature Monitormentioning

confidence: 99%

RENAL RESEARCH INSTITUTE SYMPOSIUM: Surveillance of Access Function by the Blood Temperature Monitor

Schneditz

Kaufman

Levin

2003

Seminars in Dialysis

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Low access blood flow is considered the most important cause of peripheral vascular access thrombosis, particularly with grafts. The measurement of access flow is time consuming, operator dependent, and may affect the efficiency of dialysis so that it cannot be done with every treatment. The measurement of recirculation, however, is possible with every treatment and can be done automatically when using the thermodilution offered by the blood temperature monitor (BTM). Since BTM recirculation always includes a component related to cardiopulmonary recirculation, the threshold to detect access recirculation in peripheral arteriovenous grafts and native fistulas must be shifted from zero recirculation applicable for bolus techniques to 15% for the slow thermodilution technique. In one study, recirculation in native arteriovenous fistulas was measured with every treatment in 80 patients over a period of 6 months. Nine of 11 interventions performed during the entire observation period were triggered by a BTM recirculation above the threshold. Two fistulas thrombosed in spite of a BTM recirculation below the threshold. BTM recirculation to detect fistulas for revision is sensitive (81.8%) and specific (98.6%) in the presence of cardiopulmonary recirculation and can be done with minimum intervention and without loss of efficient treatment time.

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Section: Blood Temperature Monitormentioning

confidence: 99%

RENAL RESEARCH INSTITUTE SYMPOSIUM: Surveillance of Access Function by the Blood Temperature Monitor

Schneditz

Kaufman

Levin

2003

Seminars in Dialysis

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“…Kuhlmann [18] was probably the first to postulate this simple idea: Contact of blood with bioincompatible material leads to release of cytokines. He used the blood temperature monitor (BTM, Fresenius Medical Care [20,21]) in the control mode to keep body temperature constant during dialysis. Kuhlman was able to show on a small group of patients dialyzed with cuprophane and polysulphone dialyzers that his theory was valid.…”

Section: Negative Thermal Balance and Hemodialysis Efficiencymentioning

confidence: 99%

“…At the time of writing this article, there has been only one commercially available device built into a hemodialysis machine that was able to measure and control the thermal balance of the extracorporeal circuit -the above-mentioned BTM, which can be used in two different active regulatory modes [20,21]:…”

Section: Existing Technology For Thermal Balance Monitoring and Controlmentioning

confidence: 99%

Temperature and Thermal Balance Monitoring and Control in Dialysis

Lopot

Sulková

Fořtová

et al. 2003

Hemodialysis International

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Temperature and thermal balance have been studied in an effort to explain better tolerance of ultrafiltration during isolated ultrafiltration and other convective techniques as compared to conventional hemodialysis. The large number of published studies has led to the conclusion that negative thermal balance of the extracorporeal circuit ameliorates hemodynamic stability by increased vasoreactivity and increased peripheral resistance. On the other hand, measurement of dialysis efficiency (urea removal) did not unequivocally confirm the theoretically predicted decrease in efficiency of "cool" dialysis. Another suggested application of temperature and thermal balance for assessing bioincompatibility is currently hampered by the ability of existing technology to evaluate thermal parameters of the extracorporeal circuit only. Publications on impact of negative thermal balance of the extracorporeal circuit on ultrafiltration-induced changes in blood volume give contradictory results. Further studies are needed for elucidation of the impact of thermal balance on overall biological response to dialysis.

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Strategies for improving hemodynamic stability in cardiac-compromised dialysis patients

Sande¹,

Kooman²,

Leunissen³

2000

American Journal of Kidney Diseases

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Optimization of a sensor head for blood temperature measurement during hemodialysis

Cited by 8 publications

References 0 publications

RENAL RESEARCH INSTITUTE SYMPOSIUM: Surveillance of Access Function by the Blood Temperature Monitor

RENAL RESEARCH INSTITUTE SYMPOSIUM: Surveillance of Access Function by the Blood Temperature Monitor

Temperature and Thermal Balance Monitoring and Control in Dialysis

Strategies for improving hemodynamic stability in cardiac-compromised dialysis patients

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