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Blood Sampling Functionality of Extended Dwell Catheters

Blood Sampling and Extended Dwell Catheters: A Randomized Trial of Blood Sampling Functionality Based on Site Selection

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04409418
Enrollment
100
Registered
2020-06-01
Start date
2021-06-23
Completion date
2023-09-30
Last updated
2024-11-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

IV Catheter-Related Infection or Complication, Peripheral Venous Access, Vascular Access Complication

Keywords

intravenous access, vascular access, IV survival

Brief summary

The purpose of this study is to compare upper arm versus forearm Extended Dwell Catheter (EDC) placement for blood sampling functionality. EDC is an alternative to peripheral Intravenous (IVs) especially during prolonged hospital stays. EDCs are generally placed using ultrasound for guidance and are commonly placed in any of 3 veins in the arm. They can be inserted above or below the antecubital fossa (the bend of the elbow). These catheters can be left for up to 30 days and don't fail as quickly when compared to peripheral IVs.

Detailed description

Many patients will require ongoing blood draws for laboratory testing while in the hospital and hospitals generally avoid using peripheral IVs for laboratory testing as it is associated with an increase in complications such as irritation and infiltration (where the IV medication or fluid will leak out of the vein and into the surrounding tissue). Therefore, patients are often required to have multiple needlesticks throughout their hospital stay which can lead to patient dissatisfaction and anxiety. Extended dwell catheters (EDC) offer an alternative to peripheral IVs especially during prolonged hospital stays. EDCs are generally placed using ultrasound for guidance and are commonly placed in any of 3 veins in the arm. They can be inserted above or below the antecubital fossa (the bend of the elbow). These catheters can be left for up to 30 days and don't fail as quickly when compared to peripheral IVs. While there is not a lot of evidence about how well these catheters will allow blood to be drawn, an EDC can be used to obtain blood for routine blood draws and potentially eliminate the need for additional needle sticks. Eligible patients in this study will be randomized to two groups based on placement site: experimental group (forearm) or the control group (upper arm). If the patient is in the control group the research staff will direct the inserter to place the catheter into the upper arm vein at least 2 cm above the antecubital fossa. If the patient is randomized to the experimental group (lower arm), the research staff will direct the insert to place the catheter into the forearm at least 10 cm away from the antecubital fossa. The research team will capture images on the ultrasound machine that is used for initial assessment of sites per routine care. If the vein is appropriate for cannulation based on these assessments, the Advance Practice Provider (APP) will insert the catheter. If the APP on the Vascular Access Team (VAT) has no adequate target visualized in the randomly selected site, the inserter may evaluate another site that is more suitable for cannulation. Functionality will be confirmed by ability to aspirate by drawing back into a syringe and then the catheter flushed with 5cc of normal saline without resistance. The site of insertion will be recorded and pertinent information will be collected similar to other catheter placements. Securement of the placed IV will be standardized between groups. Daily assessment of functionality (patency of the catheter) will be performed by the research team for the life of the catheter while hospitalized (up to 30 days).

Interventions

DEVICEExtended dwell catheters

EDCs are generally placed using ultrasound for guidance and are commonly placed in any of 3 veins in the arm. They can be inserted above or below the antecubital fossa (the bend of your elbow). These catheters can be left for up to 30 days and don't fail as quickly when compared to peripheral IVs.

Sponsors

Corewell Health East
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Prospective, single-site, randomized

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Inpatient Inclusion Criteria: 1. Consult to VAT for vascular access device placement 2. Patient requires peripheral access 3. Adults \>18 years of age ED Patient Inclusion Criteria 1. Age \> 18 years old 2. Difficult vascular access defined as: patient has no visible veins (\>2mm) or palpable veins 3. Anticipated hospital admission All patients meeting inclusion criteria will be pre-scanned prior to formal enrollment to identify diameter of target veins and calculate a catheter to vein ratio at the potential insertion site. Patients must meet this criteria in both upper arm and forearm locations prior to enrollment and randomization.

Exclusion criteria

Patients will be excluded if: 1. Multiple lumens required 2. Functional vascular access device exists proximal to the targeted area of insertion. This does not include superficial non-ultrasound guided peripheral IVs. 3. Upper extremity cannot be accessed due to a coexisting medical condition 4. Cognitively impaired

Design outcomes

Primary

MeasureTime frameDescription
Blood Sampling FunctionalityDuring hospitalization, up to 30 daysBlood sampling ability will be evaluated by daily blood draws prior to patient discharge. The measured outcome is number of hours until failure to aspirate blood identified during follow-up assessment during hospitalization.

Secondary

MeasureTime frameDescription
Catheter Dwell Time/SurvivalDuring hospitalization, up to 30 daysFunctionality of catheter for intravenous therapy prior to patient discharge. The measured outcome is number of hours until failure of functionality identified as inability to infuse without resistance during follow-up assessment during hospitalization.
ThrombosisDuring hospitalization, up to 30 daysThe number of participants with symptomatic catheter-related upper extremity venous thrombosis (CR-UEVT) inclusive of superficial thrombophlebitis (SVT) and deep venous thrombosis (DVT) confirmed by upper extremity venous duplex evaluation.

Countries

United States

Participant flow

Pre-assignment details

100 were consented. Prior to randomization, 9 patients were excluded for inadequate vessel size, 2 patients withdrew from the study, 1 patient investigator removed due to other IV access. 20 patients originally assigned to the forearm group crossed over to the upper arm group because there was no suitable target vessel, leaving 24 in the forearm group and 64 in the upper arm group.

Participants by arm

ArmCount
Experimental Group
If the patient is randomized to the experimental group (lower arm), the research staff will direct the insert to place the catheter into the forearm at least 10 cm away from the antecubital fossa. Extended dwell catheters: EDCs are generally placed using ultrasound for guidance and are commonly placed in any of 3 veins in the arm. They can be inserted above or below the antecubital fossa (the bend of your elbow). These catheters can be left for up to 30 days and don't fail as quickly when compared to peripheral IVs.
24
Control Group
Control group (upper arm). If the patient is in the control group the research staff will direct the inserter to place the catheter into the upper arm vein at least 2 cm above the antecubital fossa. Extended dwell catheters: EDCs are generally placed using ultrasound for guidance and are commonly placed in any of 3 veins in the arm. They can be inserted above or below the antecubital fossa (the bend of your elbow). These catheters can be left for up to 30 days and don't fail as quickly when compared to peripheral IVs.
64
Total88

Baseline characteristics

CharacteristicControl GroupTotalExperimental Group
Age, Customized
<=25 years
1 Participants3 Participants2 Participants
Age, Customized
26-50 years
14 Participants18 Participants4 Participants
Age, Customized
51-75 years
34 Participants47 Participants13 Participants
Age, Customized
>75 years
15 Participants20 Participants5 Participants
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
United States
64 participants88 participants24 participants
Sex: Female, Male
Female
39 Participants50 Participants11 Participants
Sex: Female, Male
Male
25 Participants38 Participants13 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 240 / 64
other
Total, other adverse events
6 / 2424 / 64
serious
Total, serious adverse events
0 / 240 / 64

Outcome results

Primary

Blood Sampling Functionality

Blood sampling ability will be evaluated by daily blood draws prior to patient discharge. The measured outcome is number of hours until failure to aspirate blood identified during follow-up assessment during hospitalization.

Time frame: During hospitalization, up to 30 days

ArmMeasureValue (MEAN)Dispersion
Experimental GroupBlood Sampling Functionality70.19 hoursStandard Deviation 61.41
Control GroupBlood Sampling Functionality112.9 hoursStandard Deviation 141.47
Secondary

Catheter Dwell Time/Survival

Functionality of catheter for intravenous therapy prior to patient discharge. The measured outcome is number of hours until failure of functionality identified as inability to infuse without resistance during follow-up assessment during hospitalization.

Time frame: During hospitalization, up to 30 days

ArmMeasureValue (MEAN)Dispersion
Experimental GroupCatheter Dwell Time/Survival74.27 hoursStandard Deviation 59.9
Control GroupCatheter Dwell Time/Survival115.52 hoursStandard Deviation 140.42
Secondary

Thrombosis

The number of participants with symptomatic catheter-related upper extremity venous thrombosis (CR-UEVT) inclusive of superficial thrombophlebitis (SVT) and deep venous thrombosis (DVT) confirmed by upper extremity venous duplex evaluation.

Time frame: During hospitalization, up to 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Experimental GroupThrombosis2 Participants
Control GroupThrombosis5 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026