The Use of Warmed Saline in Vaso-occlusive Episodes
Clinical Impact of Warmed Intravenous Saline in Sickle Cell Patients With Vaso-Occlusive Episodes
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Vaso-occlusive crisis (VOC) is a common painful complication of Sickle Cell Disease and is the primary reason that these patients seek medical care in the acute care setting. This complication arises when blood vessels are obstructed by sickled red blood cells resulting in ischemic injury.
The standard management of these painful episodes comprises the administration of opioid analgesics, the infusion of intravenous (IV) fluids at room temperature and rest. These episodes often last five to seven days and many patients require inpatient management for continued administration of intravenous analgesics.
The public health impact of the disease is large as admissions frequently result in school or work absences and can be financially and emotionally taxing.
It is well established that exposure to cold precipitates VOC. For this reason, management of the pain of VOC in some centers includes the use of warming blankets as an adjunct for pain relief. It is conceptually appealing to conjecture that warm fluids might have similar salutary effects on VOC. This conjecture is bolstered by the physiologic effect of temperature on vascular tone. Specifically, it is well established that cold temperatures cause vasoconstriction whereas warm temperatures cause vasodilation. We expect that warmed fluids will similarly induce vasodilation, improving blood flow to vaso-occluded ischemic areas.
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Vaso-occlusive Episode defined as a pain rating of 3 or above on the Wong-Baker FACES score in a child with an established diagnosis of sickle cell disease (SS, SC or S β Thalassemia)
- 4-21 years of age
Exclusion Criteria:
- fever (temperature greater than 38 degrees Celsius)
- inability to complete FACES pain scale
- evidence of acute chest syndrome clinically or radiographically
- deemed by attending physician to be so ill as to need immediate hospital admission.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Warm fluid
Patients in this arm of the study receive intravenous saline warmed to 37.5 degrees Celsius by Astoflo Plus fluid warmer
|
A fluid warmer (the Astoflo Plus warmer) was used to warm fluid to body temperature 37.5 degrees Celsius
|
|
No Intervention: Room temperature Fluid
Patients receive intravenous saline at room temperature (22-24 degrees Celsius)
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Rate of Hospital Admission
Time Frame: 4 hours
|
After being treated for pain in the Emergency Department, the disposition of the patient (whether admitted to the hospital for further care or discharge to home) was recorded.
|
4 hours
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Difference in Pain Score
Time Frame: 4 hours
|
During the ED stay, patient's pain scores on the Wong-Baker FACES scale was recorded at 30 minute intervals until disposition decided.
The difference between the pain score upon arrival and at discharge was assessed.
Minimum value 1, maximum value 10 (most pain)
|
4 hours
|
|
Time to Disposition
Time Frame: 4 hours
|
The amount of time spent in the ED was recorded for each patient
|
4 hours
|
|
Amount of Narcotic Administered
Time Frame: 4 hours
|
The amount of opioid analgesic administered in the ED prior to disposition was recorded for each patient
|
4 hours
|
|
Global Comfort
Time Frame: 4 hours
|
Upon disposition patients were asked to complete a survey which assessed their global comfort during the ED stay.
Question 2 of the survey addressed comfort by asking: "On a scale of 1 to 5, how do you think the fluid made you feel?" (1 is worse and 5 is better).
|
4 hours
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Renee Quarrie, MD, Nationwide Childrens Hospital
Publications and helpful links
General Publications
- Platt OS, Thorington BD, Brambilla DJ, Milner PF, Rosse WF, Vichinsky E, Kinney TR. Pain in sickle cell disease. Rates and risk factors. N Engl J Med. 1991 Jul 4;325(1):11-6. doi: 10.1056/NEJM199107043250103.
- Raphael JL, Mei M, Mueller BU, Giordano T. High resource hospitalizations among children with vaso-occlusive crises in sickle cell disease. Pediatr Blood Cancer. 2012 Apr;58(4):584-90. doi: 10.1002/pbc.23181. Epub 2011 May 16.
- Mousa SA, Al Momen A, Al Sayegh F, Al Jaouni S, Nasrullah Z, Al Saeed H, Alabdullatif A, Al Sayegh M, Al Zahrani H, Hegazi M, Al Mohamadi A, Alsulaiman A, Omer A, Al Kindi S, Tarawa A, Al Othman F, Qari M. Management of painful vaso-occlusive crisis of sickle-cell anemia: consensus opinion. Clin Appl Thromb Hemost. 2010 Aug;16(4):365-76. doi: 10.1177/1076029609352661. Epub 2010 Jun 7.
- Raphael JL, Kamdar A, Wang T, Liu H, Mahoney DH, Mueller BU. Day hospital versus inpatient management of uncomplicated vaso-occlusive crises in children with sickle cell disease. Pediatr Blood Cancer. 2008 Sep;51(3):398-401. doi: 10.1002/pbc.21537.
- Raphael JL, Kamdar A, Beavers MB, Mahoney DH, Mueller BU. Treatment of uncomplicated vaso-occlusive crises in children with sickle cell disease in a day hospital. Pediatr Blood Cancer. 2008 Jul;51(1):82-5. doi: 10.1002/pbc.21483.
- Field JJ, Knight-Perry JE, Debaun MR. Acute pain in children and adults with sickle cell disease: management in the absence of evidence-based guidelines. Curr Opin Hematol. 2009 May;16(3):173-8. doi: 10.1097/MOH.0b013e328329e167.
- Mehta SR, Afenyi-Annan A, Byrns PJ, Lottenberg R. Opportunities to improve outcomes in sickle cell disease. Am Fam Physician. 2006 Jul 15;74(2):303-10.
- Conran N, Franco-Penteado CF, Costa FF. Newer aspects of the pathophysiology of sickle cell disease vaso-occlusion. Hemoglobin. 2009;33(1):1-16. doi: 10.1080/03630260802625709.
- Jaja SI, Gbadamosi TA, Kehinde MO, Gbenebitse S. The effect of warmth or/and vitamin E supplementation on forearm blood flow and forearm vascular resistance in sickle cell and non sickle cell anaemia subjects. Niger Postgrad Med J. 2003 Mar;10(1):6-12.
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- IRB12-00295
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