Predicting Hypotension During Dialysis in the ICU

Currently, decisions regarding volume management for dialysis sessions in the ICU are made in large part on the nephrologists'/intensivists' overall gestalt. This gestalt is based upon a combination of commonly used measures of circulatory function, the physical exam, fluid balance, estimates of dialysis dry weight, and monitoring changes in relative blood volume status using devices such as the Crit-Line™ III, and central venous pressures. However, these tools perform poorly in predicting the circulatory system's overall response to dialysis. Consequently, episodes of dangerously low blood pressure are still frequently encountered. Better techniques to predict the circulatory system's response to dialysis are much needed. The intent of this study is to test newer metrics of circulatory system function for their ability to predict low blood pressure episodes during dialysis. This is important because it may enable the design of newer treatment strategies created to prevent low blood pressure episodes during dialysis and improve patient outcomes. The investigators overall hypothesis is that newer measures of vascular volume and dynamic indices of fluid responsiveness, previously found to better reflect cardiac preload state than currently used parameters, will better predict low blood pressure episodes during dialysis than current methods.

Study Overview

• Status: Withdrawn
• Conditions: Peridialytic Hypotension
• Intervention / Treatment: Procedure: Transpulmonary Thermodilution

• Study Type: Observational

Contacts and Locations

Study Locations

• United States
  • Oregon
    • Portland, Oregon, United States, 97239
      • Oregon Health and Science University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Any patient 18 years and older who is admitted to the OHSU Hospitals ICUs with ARF, or End Stage Renal Disease (ESRD) for a diagnosis other than hyperkalemia, as the sole determinant for that level of care, will be invited to participate. The patient must have acute or chronic needs for dialytic support during their ICU stay in order to qualify for the study. Dialysis support may be provided by intermittent HD sessions, or continuous venovenous hemodiafiltration (CVVHDF) depending on the underlying hemodynamic stability of the patient.

Description

Inclusion Criteria:

• Admitted to OHSU Hospitals ICUs
• Patient has acute or chronic needs for intermittent hemodialysis support during their ICU stay for any reason other than isolated hyperkalemia
• Central venous access in place separate from the dialysis catheter, or arteriovenous fistula or graft
• Two or more organ systems affected by critical illness requiring supportive care as documented in the medical chart.

Exclusion Criteria:

• age younger than 18 years old
• Weight > 160 kg
• burns greater than 40% total body surface area
• known cardiac or vascular aneurysm
• contraindications to femoral arterial puncture
• diagnosis of peripheral vascular disease
• not committed to full support
• participation in other experimental medication trial within 30 days
• current atrial or ventricular arrhythmias
• history of sever CHF- NYHA class >= III, previously documented EF < 30%
• severe aortic regurgitation
• anticipated ICU stay < 24 hrs
• not expected to require dialysis > 48 hours

Study Plan

How is the study designed?

Design Details

• Observational Models: Case-Only
• Time Perspectives: Prospective

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort

Intervention / Treatment

ICU Dialysis Patients; Any patient 18 years and older who is admitted to the OHSU Hospitals ICUs with ARF, or End Stage Renal Disease (ESRD) for a diagnosis other than hyperkalemia, as the sole determinant for that level of care, will be invited to participate. The patient must have acute or chronic needs for dialytic support during their ICU stay.

Procedure: Transpulmonary Thermodilution; A PiCCO femoral catheter will be placed and PiCCO parameters will be obtained using transpulmonary thermodilution after continuous dialysis is ordered or just prior to initiation of intermittent dialysis, hourly until either completion of intermittent dialysis or 8 hours of continuous dialysis is completed.; Other Names: Pulsion Medical Systems; PiCCO2; PiCCO

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
hypotensive episode	A mean arterial pressure of <60 mmHg, a 15% decrease from baseline systolic blood pressure at the start of the dialysis treatment regardless of modality, the need for fluid bolusing >7 mL/kg body weight, or initiation or increase of vasopressor medication in order to maintain MAP >60 mmHg.	during or within one hour post dialysis

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
All cause mortality		30 days
fluid removal tolerance	Parameters measured will be examined to discriminate between patients that will tolerate fluid removal (UF) during the following 4 hours of dialysis if UF is ordered by physician (no hypotensive events with > 500 mL fluid removal) from those that won't	during the 4 hours following parameter measurement in dialysis
predicted volume of fluid that can be removed without hypotensive events	Parameters measured will be examined to see if they can predict the volume of fluid successfully removed without hypotensive events	during dialysis
mortality in the ICU		duration of ICU stay
Length of stay in ICU		ICU stay duration
Length of stay in hospital		duration of hospital stay

Collaborators and Investigators

• Sponsor: Oregon Health and Science University
• Investigators: Principal Investigator: Charles R Phillips, MD, Oregon Health and Science University

Publications and helpful links

General Publications

• Michard F, Boussat S, Chemla D, Anguel N, Mercat A, Lecarpentier Y, Richard C, Pinsky MR, Teboul JL. Relation between respiratory changes in arterial pulse pressure and fluid responsiveness in septic patients with acute circulatory failure. Am J Respir Crit Care Med. 2000 Jul;162(1):134-8. doi: 10.1164/ajrccm.162.1.9903035.
• U.S. Renal Data System, USRDS 2008 Annual Data Report: Atlas of Chronic Kidney Disease and End-Stage Renal Disease in the United States. In: National Institutes of Health, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, MD; 2008.
• Higgins TL, Teres D, Copes WS, Nathanson BH, Stark M, Kramer AA. Assessing contemporary intensive care unit outcome: an updated Mortality Probability Admission Model (MPM0-III). Crit Care Med. 2007 Mar;35(3):827-35. doi: 10.1097/01.CCM.0000257337.63529.9F.
• Rocha E, Soares M, Valente C, Nogueira L, Bonomo H Jr, Godinho M, Ismael M, Valenca RV, Machado JE, Maccariello E. Outcomes of critically ill patients with acute kidney injury and end-stage renal disease requiring renal replacement therapy: a case-control study. Nephrol Dial Transplant. 2009 Jun;24(6):1925-30. doi: 10.1093/ndt/gfn750. Epub 2009 Jan 22.
• Uchino S, Morimatsu H, Bellomo R, Silvester W, Cole L. End-stage renal failure patients requiring renal replacement therapy in the intensive care unit: incidence, clinical features, and outcome. Blood Purif. 2003;21(2):170-5. doi: 10.1159/000069156.
• Daugirdas JT. Pathophysiology of dialysis hypotension: an update. Am J Kidney Dis. 2001 Oct;38(4 Suppl 4):S11-7. doi: 10.1053/ajkd.2001.28090.
• Goedje O, Seebauer T, Peyerl M, Pfeiffer UJ, Reichart B. Hemodynamic monitoring by double-indicator dilution technique in patients after orthotopic heart transplantation. Chest. 2000 Sep;118(3):775-81. doi: 10.1378/chest.118.3.775.
• Krepel HP, Nette RW, Akcahuseyin E, Weimar W, Zietse R. Variability of relative blood volume during haemodialysis. Nephrol Dial Transplant. 2000 May;15(5):673-9. doi: 10.1093/ndt/15.5.673.
• Davenport A. Can advances in hemodialysis machine technology prevent intradialytic hypotension? Semin Dial. 2009 May-Jun;22(3):231-6. doi: 10.1111/j.1525-139X.2009.00614.x.
• Sakka SG, Reinhart K, Meier-Hellmann A. Comparison of pulmonary artery and arterial thermodilution cardiac output in critically ill patients. Intensive Care Med. 1999 Aug;25(8):843-6. doi: 10.1007/s001340050962.
• Michard F, Alaya S, Zarka V, Bahloul M, Richard C, Teboul JL. Global end-diastolic volume as an indicator of cardiac preload in patients with septic shock. Chest. 2003 Nov;124(5):1900-8. doi: 10.1378/chest.124.5.1900.
• Michard F, Teboul JL. Predicting fluid responsiveness in ICU patients: a critical analysis of the evidence. Chest. 2002 Jun;121(6):2000-8. doi: 10.1378/chest.121.6.2000.
• Phillips CR, Watters JM, Hagg DS, et al. Global end-diastolic volume as an indicator of cardiac preload in hemorrhagic shock and resuscitation in swine. Critical Care 2008;12(Suppl 2):P104.
• Phillips CR, Vinecore K, Hagg DS, Sawai RS, Differding JA, Watters JM, Schreiber MA. Resuscitation of haemorrhagic shock with normal saline vs. lactated Ringer's: effects on oxygenation, extravascular lung water and haemodynamics. Crit Care. 2009;13(2):R30. doi: 10.1186/cc7736. Epub 2009 Mar 4.
• De Backer D, Heenen S, Piagnerelli M, Koch M, Vincent JL. Pulse pressure variations to predict fluid responsiveness: influence of tidal volume. Intensive Care Med. 2005 Apr;31(4):517-23. doi: 10.1007/s00134-005-2586-4. Epub 2005 Mar 8.
• Reddan DN, Szczech LA, Hasselblad V, Lowrie EG, Lindsay RM, Himmelfarb J, Toto RD, Stivelman J, Winchester JF, Zillman LA, Califf RM, Owen WF Jr. Intradialytic blood volume monitoring in ambulatory hemodialysis patients: a randomized trial. J Am Soc Nephrol. 2005 Jul;16(7):2162-9. doi: 10.1681/ASN.2004121053. Epub 2005 Jun 1.

Study record dates

Study Major Dates

• Study Start (Actual): July 19, 2010
• Primary Completion (Actual): March 11, 2013
• Study Completion (Actual): March 11, 2013

Study Registration Dates

• First Submitted: July 27, 2010
• First Submitted That Met QC Criteria: July 27, 2010
• First Posted (Estimate): July 28, 2010

Study Record Updates

• Last Update Posted (Actual): June 5, 2019
• Last Update Submitted That Met QC Criteria: June 3, 2019
• Last Verified: June 1, 2019

More Information

Terms related to this study

• Keywords: dialysis; hemodialysis; Thermodilution; hypotension; CritLine; PiCCO; CVVHDF; IHD
• Additional Relevant MeSH Terms: Cardiovascular Diseases; Vascular Diseases; Hypotension
• Other Study ID Numbers: IRB00006189