Sustained low efficiency dialysis should not be interrupted for performing transpulmonary thermodilution measurements

Abstract Background Treatment of multiple organ failure frequently requires enhanced hemodynamic monitoring. When renal replacement is indicated, it remains unclear whether transpulmonary thermodilution (TPTD) measurements are influenced by renal replacement therapy (RRT) and whether RRT should be p...

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Main Authors: Stefanie Geith, Lynne Stecher, Christian Rabe, Stefan Sack, Florian Eyer
Format: Article
Language:English
Published: SpringerOpen 2018-11-01
Series:Annals of Intensive Care
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13613-018-0455-x
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author Stefanie Geith
Lynne Stecher
Christian Rabe
Stefan Sack
Florian Eyer
author_facet Stefanie Geith
Lynne Stecher
Christian Rabe
Stefan Sack
Florian Eyer
author_sort Stefanie Geith
collection DOAJ
description Abstract Background Treatment of multiple organ failure frequently requires enhanced hemodynamic monitoring. When renal replacement is indicated, it remains unclear whether transpulmonary thermodilution (TPTD) measurements are influenced by renal replacement therapy (RRT) and whether RRT should be paused for TPTD measurements. Our aim was therefore to investigate the effect of pausing RRT on TPTD results in two dialysis catheter locations. Materials and methods In total, 62 TPTD measurements in 24 patients (APACHE: 32 ± 7 [mean ± standard deviation (SD)]) were performed using the PiCCO™ system (Pulsion, Germany). Patients were treated with sustained low efficiency dialysis (SLED; Genius™ system, Fresenius, Germany) as RRT. Measurements were taken during ongoing hemodialysis (HD, HDO), during paused HD (HDP) and immediately after termination of HD and blood restitution (HDT). Dialysis catheters were placed either in the superior vena cava (SVC, 19 times) or in the inferior vena cava (IVC, 5 times). Statistical analysis was performed to assess the effects of the measurement setting, SLED (blood flow rate) and the catheter location, on cardiac index (CI), global end-diastolic volume index (GEDVI) and extravascular lung water index (EVLWI) as measured by TPTD. Multilevel models were used for the analysis due to the triplicate measurements and due to 12 out of 19 SVC and 2 out of 5 IVC patients having more than one TPTD measured. Results CI and GEDVI were significantly higher at time point HDP compared to both HDO and HDT. In contrast, values for EVLWI were lower at HDP when compared to HDO and HDT. These findings were independent of the site of dialysis catheter insertion and blood flow rate. Conclusions PiCCO™ measurements assessed at paused SLED significantly deviate from ongoing and terminated SLED. Therefore, the dialysis system should not be paused for measurements. TPTD measurements in patients with PiCCO monitoring seem sufficiently reliable during ongoing SLED as well as after its termination. An effect of dialysis catheter location (SVC vs IVC) and blood flow rate on PiCCO™ measurements could not be shown.
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spelling doaj.art-f4835561d8cc4efbbead5ab966aa6dbe2022-12-22T01:31:59ZengSpringerOpenAnnals of Intensive Care2110-58202018-11-018111310.1186/s13613-018-0455-xSustained low efficiency dialysis should not be interrupted for performing transpulmonary thermodilution measurementsStefanie Geith0Lynne Stecher1Christian Rabe2Stefan Sack3Florian Eyer4Division of Clinical Toxicology and Poison Control Centre Munich, Department of Internal Medicine II, TUM School of Medicine, Technical University of MunichInstitute of Medical Informatics, Statistics, and Epidemiology, TUM School of Medicine, Technical University of MunichDivision of Clinical Toxicology and Poison Control Centre Munich, Department of Internal Medicine II, TUM School of Medicine, Technical University of MunichDepartment of Cardiology, Pneumology and Intensive Care, Emergency Center for Internal Affairs, Academic General Hospital Munich - Hospital SchwabingDivision of Clinical Toxicology and Poison Control Centre Munich, Department of Internal Medicine II, TUM School of Medicine, Technical University of MunichAbstract Background Treatment of multiple organ failure frequently requires enhanced hemodynamic monitoring. When renal replacement is indicated, it remains unclear whether transpulmonary thermodilution (TPTD) measurements are influenced by renal replacement therapy (RRT) and whether RRT should be paused for TPTD measurements. Our aim was therefore to investigate the effect of pausing RRT on TPTD results in two dialysis catheter locations. Materials and methods In total, 62 TPTD measurements in 24 patients (APACHE: 32 ± 7 [mean ± standard deviation (SD)]) were performed using the PiCCO™ system (Pulsion, Germany). Patients were treated with sustained low efficiency dialysis (SLED; Genius™ system, Fresenius, Germany) as RRT. Measurements were taken during ongoing hemodialysis (HD, HDO), during paused HD (HDP) and immediately after termination of HD and blood restitution (HDT). Dialysis catheters were placed either in the superior vena cava (SVC, 19 times) or in the inferior vena cava (IVC, 5 times). Statistical analysis was performed to assess the effects of the measurement setting, SLED (blood flow rate) and the catheter location, on cardiac index (CI), global end-diastolic volume index (GEDVI) and extravascular lung water index (EVLWI) as measured by TPTD. Multilevel models were used for the analysis due to the triplicate measurements and due to 12 out of 19 SVC and 2 out of 5 IVC patients having more than one TPTD measured. Results CI and GEDVI were significantly higher at time point HDP compared to both HDO and HDT. In contrast, values for EVLWI were lower at HDP when compared to HDO and HDT. These findings were independent of the site of dialysis catheter insertion and blood flow rate. Conclusions PiCCO™ measurements assessed at paused SLED significantly deviate from ongoing and terminated SLED. Therefore, the dialysis system should not be paused for measurements. TPTD measurements in patients with PiCCO monitoring seem sufficiently reliable during ongoing SLED as well as after its termination. An effect of dialysis catheter location (SVC vs IVC) and blood flow rate on PiCCO™ measurements could not be shown.http://link.springer.com/article/10.1186/s13613-018-0455-xSustained low efficiency dialysis (SLED)Transpulmonary thermodilution measurement (TPTD)Patients with multiple organ failure (MOF)
spellingShingle Stefanie Geith
Lynne Stecher
Christian Rabe
Stefan Sack
Florian Eyer
Sustained low efficiency dialysis should not be interrupted for performing transpulmonary thermodilution measurements
Annals of Intensive Care
Sustained low efficiency dialysis (SLED)
Transpulmonary thermodilution measurement (TPTD)
Patients with multiple organ failure (MOF)
title Sustained low efficiency dialysis should not be interrupted for performing transpulmonary thermodilution measurements
title_full Sustained low efficiency dialysis should not be interrupted for performing transpulmonary thermodilution measurements
title_fullStr Sustained low efficiency dialysis should not be interrupted for performing transpulmonary thermodilution measurements
title_full_unstemmed Sustained low efficiency dialysis should not be interrupted for performing transpulmonary thermodilution measurements
title_short Sustained low efficiency dialysis should not be interrupted for performing transpulmonary thermodilution measurements
title_sort sustained low efficiency dialysis should not be interrupted for performing transpulmonary thermodilution measurements
topic Sustained low efficiency dialysis (SLED)
Transpulmonary thermodilution measurement (TPTD)
Patients with multiple organ failure (MOF)
url http://link.springer.com/article/10.1186/s13613-018-0455-x
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AT christianrabe sustainedlowefficiencydialysisshouldnotbeinterruptedforperformingtranspulmonarythermodilutionmeasurements
AT stefansack sustainedlowefficiencydialysisshouldnotbeinterruptedforperformingtranspulmonarythermodilutionmeasurements
AT florianeyer sustainedlowefficiencydialysisshouldnotbeinterruptedforperformingtranspulmonarythermodilutionmeasurements