Emergency Department (ED) Flow-directed Fluid Optimization Resuscitation Trial (EFFORT)

NCT ID: NCT01128413

Last Updated: 2016-04-01

Study Results

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

NA

Total Enrollment

22 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-07-31

Study Completion Date

2013-11-30

Brief Summary

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The short term goal of this study is to evaluate a non-invasive approach that optimizes intravenous (IV) fluid administration according to heart performance and results in surrogate improvements in morbidity and mortality via lactate clearance. Additional objectives include comparative assessments of methods for determining volume responsiveness and establishing a prevalence of volume responsive shock in the Emergency Department (ED).

Detailed Description

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Patients will be randomized to Routine Care (RC) or Fluid Optimizations (FO) arms. Both arms will have interval Cheetah NICOM® (non-invasive cardiac output monitoring) Passive Leg Raise Testing (PLRT).

In the FO arm, patients having a PLRT demonstrating a \>/= 15% change in stroke volume index (SVI) or cardiac index (CI) patients will receive a 500ml normal saline bolus. If the NICOM® PLRT shows a SVI or CI \<15% patients will receive a saline lock. If bolused, NICOM® PLRT will be performed within 10 minutes after the bolus with the decision to re-bolus or saline lock according to repeated NICOM® PLRT measurements. If saline locked, NICOM® PLRT will be performed every 30 minutes with the decision to re-bolus or saline lock according to repeated NICOM® PLRT measurements.

In the RC arm, IV fluid administration will be per the treating clinicians discretion. The Cheetah NICOM®PLRT will be performed before and after each clinician fluid bolus.

Lactate blood samples will be drawn at time zero, 1 hour, 3 hours, 6 hours, and/or ED departure and compared between arms.

Conditions

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Shock

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Fluid Optimization (FO)

Cheetah NICOM® (non-invasive cardiac output monitoring) Passive Leg Raise Testing (PLRT) that demonstrates a \>/= 15% change in stroke volume index (SVI) or cardiac index (CI) will receive a 500ml normal saline bolus. NICOM® PLRT with SVI or CI \<15% will receive a saline lock. If bolused, NICOM® PLRT will be performed within 10 minutes after the bolus with the decision to re-bolus or saline lock according to repeated NICOM® PLRT measurements. If saline locked, NICOM® PLRT will be performed every 30 minutes with the decision to re-bolus or saline lock according to repeated NICOM® PLRT measurements.

Additionally, USCOM®, IVC Ultrasound collapsibility, CURVES Questionnaire, and repeat lactate measurements will be performed.

Group Type EXPERIMENTAL

Cheetah NICOM® PLRT

Intervention Type DEVICE

Cheetah NICOM® (non-invasive cardiac output monitoring)PLRT (passive leg raise testing) protocol: The patient while in a semi-recumbent position (legs level, torso up 45 degrees) will have 3 minutes of stroke volume and cardiac index monitoring. Following the 3 minutes, the patient will be placed in a leg raised position (torso level, legs up 45 degrees) for 3 minutes of stroke volume and cardiac index monitoring. NICOM® PLRT will be performed within 10 minutes after any fluid bolus in both arms with results blinded to the Routine Care arm. If saline locked or maintenance IV fluid rate, NICOM® PLRT will be performed every 30 minutes in both arms with results blinded to the Routine Care arm.

USCOM ® (Ultrasound Cardiac Output Monitor)

Intervention Type DEVICE

Patients while in the Cheetah NICOM® PLRT semi-recumbent position (legs level, torso up 45 degrees) will have simultaneous USCOM® stroke volume and cardiac index monitoring. Following the 3 minutes of Cheetah NICOM® PLRT semi-recumbent positioning, the patient will be placed in a leg raised position (torso level, legs up 45 degrees) and have simultaneous USCOM® stroke volume and cardiac index monitoring. USCOM® monitoring will be blinded to the Routine Care arm unless used as part of a provider's routine practice. USCOM® changes in SVI or CI with PLRT will be calculated after the patient leaves the ED.

Inferior Vena Cava (IVC) Ultrasound Collapsibility

Intervention Type DEVICE

Patients while in the Cheetah NICOM® PLRT semi-recumbent position (legs level, torso up 45 degrees) will have a simultaneous 6-12 second ultrasound recording of their IVC. These recordings will be reviewed later by an ultrasonographer and graded for volume responsiveness. The reviewing ultrasonographer will be blinded to the Cheetah NICOM® PLRT results.

CURVES Questionnaire

Intervention Type BEHAVIORAL

The CURVES (CardiovascUlar Response \& Volume Estimation in Shock) Questionnaire consists of multiple provider questions aimed at defining the presumed shock etiology and anticipated responses to interventions. This will be administered to both arms.

Lactate Clearance

Intervention Type BIOLOGICAL

Lactate samples will be drawn at time 0, 1, 3, \& 6 hours (or at ED departure if before 6 hours). Time 0 lactate will be revealed to the Routine Care arm and subsequent lactates revealed to the Routine Care arm only if serial lactates are part of the provider's routine practice.

500ml Normal Saline Bolus

Intervention Type BIOLOGICAL

Patients randomized to the experimental arm and having a \>/= 15% change in stroke volume index (SVI) or cardiac index (CI) via Cheetah NICOM®PLRT will be given a 500ml normal saline fluid bolus.

Routine Care (RC)

Patients randomized to receive routine ED care will receive IV fluid administration per the treating clinicians discretion. The Cheetah NICOM®PLRT, USCOM®, IVC Ultrasound collapsibility, and CURVES Questionnaire will be performed and repeat lactate measurements will only be revealed to the routine care arm if they are used as part of the provider's routine care.

Group Type ACTIVE_COMPARATOR

Cheetah NICOM® PLRT

Intervention Type DEVICE

Cheetah NICOM® (non-invasive cardiac output monitoring)PLRT (passive leg raise testing) protocol: The patient while in a semi-recumbent position (legs level, torso up 45 degrees) will have 3 minutes of stroke volume and cardiac index monitoring. Following the 3 minutes, the patient will be placed in a leg raised position (torso level, legs up 45 degrees) for 3 minutes of stroke volume and cardiac index monitoring. NICOM® PLRT will be performed within 10 minutes after any fluid bolus in both arms with results blinded to the Routine Care arm. If saline locked or maintenance IV fluid rate, NICOM® PLRT will be performed every 30 minutes in both arms with results blinded to the Routine Care arm.

USCOM ® (Ultrasound Cardiac Output Monitor)

Intervention Type DEVICE

Patients while in the Cheetah NICOM® PLRT semi-recumbent position (legs level, torso up 45 degrees) will have simultaneous USCOM® stroke volume and cardiac index monitoring. Following the 3 minutes of Cheetah NICOM® PLRT semi-recumbent positioning, the patient will be placed in a leg raised position (torso level, legs up 45 degrees) and have simultaneous USCOM® stroke volume and cardiac index monitoring. USCOM® monitoring will be blinded to the Routine Care arm unless used as part of a provider's routine practice. USCOM® changes in SVI or CI with PLRT will be calculated after the patient leaves the ED.

Inferior Vena Cava (IVC) Ultrasound Collapsibility

Intervention Type DEVICE

Patients while in the Cheetah NICOM® PLRT semi-recumbent position (legs level, torso up 45 degrees) will have a simultaneous 6-12 second ultrasound recording of their IVC. These recordings will be reviewed later by an ultrasonographer and graded for volume responsiveness. The reviewing ultrasonographer will be blinded to the Cheetah NICOM® PLRT results.

CURVES Questionnaire

Intervention Type BEHAVIORAL

The CURVES (CardiovascUlar Response \& Volume Estimation in Shock) Questionnaire consists of multiple provider questions aimed at defining the presumed shock etiology and anticipated responses to interventions. This will be administered to both arms.

Lactate Clearance

Intervention Type BIOLOGICAL

Lactate samples will be drawn at time 0, 1, 3, \& 6 hours (or at ED departure if before 6 hours). Time 0 lactate will be revealed to the Routine Care arm and subsequent lactates revealed to the Routine Care arm only if serial lactates are part of the provider's routine practice.

Clinician Discretion Intravenous Fluid Management

Intervention Type BIOLOGICAL

Clinicians caring for patients randomized to the Routine Care arm will within 10 minutes after any fluid bolus be asked to decide via their clinical discretion if they want to re-bolus, saline lock, or place the patient on a maintenance IV fluid rate. If the patient is on a saline lock or maintenance fluid rate, clinicians will be asked every 30 minutes to decide via their clinical discretion to re-bolus, saline lock, or place the patient on a maintenance IV fluid rate.

Interventions

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Cheetah NICOM® PLRT

Cheetah NICOM® (non-invasive cardiac output monitoring)PLRT (passive leg raise testing) protocol: The patient while in a semi-recumbent position (legs level, torso up 45 degrees) will have 3 minutes of stroke volume and cardiac index monitoring. Following the 3 minutes, the patient will be placed in a leg raised position (torso level, legs up 45 degrees) for 3 minutes of stroke volume and cardiac index monitoring. NICOM® PLRT will be performed within 10 minutes after any fluid bolus in both arms with results blinded to the Routine Care arm. If saline locked or maintenance IV fluid rate, NICOM® PLRT will be performed every 30 minutes in both arms with results blinded to the Routine Care arm.

Intervention Type DEVICE

USCOM ® (Ultrasound Cardiac Output Monitor)

Patients while in the Cheetah NICOM® PLRT semi-recumbent position (legs level, torso up 45 degrees) will have simultaneous USCOM® stroke volume and cardiac index monitoring. Following the 3 minutes of Cheetah NICOM® PLRT semi-recumbent positioning, the patient will be placed in a leg raised position (torso level, legs up 45 degrees) and have simultaneous USCOM® stroke volume and cardiac index monitoring. USCOM® monitoring will be blinded to the Routine Care arm unless used as part of a provider's routine practice. USCOM® changes in SVI or CI with PLRT will be calculated after the patient leaves the ED.

Intervention Type DEVICE

Inferior Vena Cava (IVC) Ultrasound Collapsibility

Patients while in the Cheetah NICOM® PLRT semi-recumbent position (legs level, torso up 45 degrees) will have a simultaneous 6-12 second ultrasound recording of their IVC. These recordings will be reviewed later by an ultrasonographer and graded for volume responsiveness. The reviewing ultrasonographer will be blinded to the Cheetah NICOM® PLRT results.

Intervention Type DEVICE

CURVES Questionnaire

The CURVES (CardiovascUlar Response \& Volume Estimation in Shock) Questionnaire consists of multiple provider questions aimed at defining the presumed shock etiology and anticipated responses to interventions. This will be administered to both arms.

Intervention Type BEHAVIORAL

Lactate Clearance

Lactate samples will be drawn at time 0, 1, 3, \& 6 hours (or at ED departure if before 6 hours). Time 0 lactate will be revealed to the Routine Care arm and subsequent lactates revealed to the Routine Care arm only if serial lactates are part of the provider's routine practice.

Intervention Type BIOLOGICAL

500ml Normal Saline Bolus

Patients randomized to the experimental arm and having a \>/= 15% change in stroke volume index (SVI) or cardiac index (CI) via Cheetah NICOM®PLRT will be given a 500ml normal saline fluid bolus.

Intervention Type BIOLOGICAL

Clinician Discretion Intravenous Fluid Management

Clinicians caring for patients randomized to the Routine Care arm will within 10 minutes after any fluid bolus be asked to decide via their clinical discretion if they want to re-bolus, saline lock, or place the patient on a maintenance IV fluid rate. If the patient is on a saline lock or maintenance fluid rate, clinicians will be asked every 30 minutes to decide via their clinical discretion to re-bolus, saline lock, or place the patient on a maintenance IV fluid rate.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Hypotension (Systolic Blood Pressure ≤90mm Hg or Mean Arterial Pressure ≤ 65 mm Hg) after ≥ 20ml/kg fluids OR
* Vasopressor Use OR
* Lactate ≥ 2.5 mmol/L

Exclusion Criteria

* Pulse Oximetry \<90% despite supplemental oxygen or intubation
* Seizure in the last 24 hours
* Prisoner
* Pregnancy
* Age \<18
* Allergy to coupling or ultrasound gel
* Inability to do passive leg raise
* Inability to obtain IV access
* Treating clinician discretion
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Washington University School of Medicine

OTHER

Sponsor Role lead

Responsible Party

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Christopher Holthaus

MD

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Christopher V Holthaus, MD

Role: PRINCIPAL_INVESTIGATOR

Washington University School of Medicine

Brian M Fuller, MD

Role: PRINCIPAL_INVESTIGATOR

Washington University School of Medicine

Locations

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Barnes-Jewish Hospital Emergency Department

St Louis, Missouri, United States

Site Status

Countries

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United States

References

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Sinert R, Spektor M. Evidence-based emergency medicine/rational clinical examination abstract. Clinical assessment of hypovolemia. Ann Emerg Med. 2005 Mar;45(3):327-9. doi: 10.1016/j.annemergmed.2004.09.021. No abstract available.

Reference Type BACKGROUND
PMID: 15726060 (View on PubMed)

Jones AE, Kline JA. Use of goal-directed therapy for severe sepsis and septic shock in academic emergency departments. Crit Care Med. 2005 Aug;33(8):1888-9; author reply 1889-90. doi: 10.1097/01.ccm.0000166872.78449.b1. No abstract available.

Reference Type BACKGROUND
PMID: 16096485 (View on PubMed)

Blow O, Magliore L, Claridge JA, Butler K, Young JS. The golden hour and the silver day: detection and correction of occult hypoperfusion within 24 hours improves outcome from major trauma. J Trauma. 1999 Nov;47(5):964-9. doi: 10.1097/00005373-199911000-00028.

Reference Type BACKGROUND
PMID: 10568731 (View on PubMed)

Shapiro NI, Howell MD, Talmor D, Nathanson LA, Lisbon A, Wolfe RE, Weiss JW. Serum lactate as a predictor of mortality in emergency department patients with infection. Ann Emerg Med. 2005 May;45(5):524-8. doi: 10.1016/j.annemergmed.2004.12.006.

Reference Type BACKGROUND
PMID: 15855951 (View on PubMed)

Nguyen HB, Rivers EP, Knoblich BP, Jacobsen G, Muzzin A, Ressler JA, Tomlanovich MC. Early lactate clearance is associated with improved outcome in severe sepsis and septic shock. Crit Care Med. 2004 Aug;32(8):1637-42. doi: 10.1097/01.ccm.0000132904.35713.a7.

Reference Type BACKGROUND
PMID: 15286537 (View on PubMed)

Jones AE, Shapiro NI, Trzeciak S, Arnold RC, Claremont HA, Kline JA; Emergency Medicine Shock Research Network (EMShockNet) Investigators. Lactate clearance vs central venous oxygen saturation as goals of early sepsis therapy: a randomized clinical trial. JAMA. 2010 Feb 24;303(8):739-46. doi: 10.1001/jama.2010.158.

Reference Type BACKGROUND
PMID: 20179283 (View on PubMed)

Sinclair S, James S, Singer M. Intraoperative intravascular volume optimisation and length of hospital stay after repair of proximal femoral fracture: randomised controlled trial. BMJ. 1997 Oct 11;315(7113):909-12. doi: 10.1136/bmj.315.7113.909.

Reference Type BACKGROUND
PMID: 9361539 (View on PubMed)

Rivers E, Nguyen B, Havstad S, Ressler J, Muzzin A, Knoblich B, Peterson E, Tomlanovich M; Early Goal-Directed Therapy Collaborative Group. Early goal-directed therapy in the treatment of severe sepsis and septic shock. N Engl J Med. 2001 Nov 8;345(19):1368-77. doi: 10.1056/NEJMoa010307.

Reference Type BACKGROUND
PMID: 11794169 (View on PubMed)

Marik PE, Baram M, Vahid B. Does central venous pressure predict fluid responsiveness? A systematic review of the literature and the tale of seven mares. Chest. 2008 Jul;134(1):172-8. doi: 10.1378/chest.07-2331.

Reference Type BACKGROUND
PMID: 18628220 (View on PubMed)

Marik PE, Cavallazzi R, Vasu T, Hirani A. Dynamic changes in arterial waveform derived variables and fluid responsiveness in mechanically ventilated patients: a systematic review of the literature. Crit Care Med. 2009 Sep;37(9):2642-7. doi: 10.1097/CCM.0b013e3181a590da.

Reference Type BACKGROUND
PMID: 19602972 (View on PubMed)

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.

Reference Type BACKGROUND
PMID: 12065368 (View on PubMed)

Monnet X, Teboul JL. Passive leg raising. Intensive Care Med. 2008 Apr;34(4):659-63. doi: 10.1007/s00134-008-0994-y. Epub 2008 Jan 23.

Reference Type BACKGROUND
PMID: 18214429 (View on PubMed)

Thiel SW, Kollef MH, Isakow W. Non-invasive stroke volume measurement and passive leg raising predict volume responsiveness in medical ICU patients: an observational cohort study. Crit Care. 2009;13(4):R111. doi: 10.1186/cc7955. Epub 2009 Jul 8.

Reference Type BACKGROUND
PMID: 19586543 (View on PubMed)

Corley A, Barnett AG, Mullany D, Fraser JF. Nurse-determined assessment of cardiac output. Comparing a non-invasive cardiac output device and pulmonary artery catheter: a prospective observational study. Int J Nurs Stud. 2009 Oct;46(10):1291-7. doi: 10.1016/j.ijnurstu.2009.03.013. Epub 2009 May 6.

Reference Type BACKGROUND
PMID: 19423107 (View on PubMed)

Nguyen HB, Losey T, Rasmussen J, Oliver R, Guptill M, Wittlake WA, Corbett SW. Interrater reliability of cardiac output measurements by transcutaneous Doppler ultrasound: implications for noninvasive hemodynamic monitoring in the ED. Am J Emerg Med. 2006 Nov;24(7):828-35. doi: 10.1016/j.ajem.2006.05.012.

Reference Type BACKGROUND
PMID: 17098106 (View on PubMed)

Barbier C, Loubieres Y, Schmit C, Hayon J, Ricome JL, Jardin F, Vieillard-Baron A. Respiratory changes in inferior vena cava diameter are helpful in predicting fluid responsiveness in ventilated septic patients. Intensive Care Med. 2004 Sep;30(9):1740-6. doi: 10.1007/s00134-004-2259-8. Epub 2004 Mar 18.

Reference Type BACKGROUND
PMID: 15034650 (View on PubMed)

Feissel M, Michard F, Faller JP, Teboul JL. The respiratory variation in inferior vena cava diameter as a guide to fluid therapy. Intensive Care Med. 2004 Sep;30(9):1834-7. doi: 10.1007/s00134-004-2233-5. Epub 2004 Mar 25.

Reference Type BACKGROUND
PMID: 15045170 (View on PubMed)

Perera P, Mailhot T, Riley D, Mandavia D. The RUSH exam: Rapid Ultrasound in SHock in the evaluation of the critically lll. Emerg Med Clin North Am. 2010 Feb;28(1):29-56, vii. doi: 10.1016/j.emc.2009.09.010.

Reference Type BACKGROUND
PMID: 19945597 (View on PubMed)

Other Identifiers

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EFFORT-10-0593

Identifier Type: -

Identifier Source: org_study_id

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