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Factors Increasing Air Burden in Intravenous Tubing

A Prospective Observational Study of Air Burden in Intravenous Tubing: Factors That Increase Patient Risk

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03723408
Enrollment
120
Registered
2018-10-29
Start date
2016-08-16
Completion date
2017-12-21
Last updated
2018-10-29

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

Conditions

Air Burden, Air Embolism, Air Leakage

Brief summary

There is widespread acceptance that air in intravenous (IV) fluid tubing (lines) can pose a significant risk to patients.1 A rigorous literature search regarding sources of this air identified only anecdotal and non-clinical work regarding the presence and sources of air in IV tubing. Most published case studies have focused on air entrainment from accidental or inadvertent sources - empty IV fluid bags, incomplete priming of the tubing prior to infusion, and air-detection device failures, as examples. The sources (and volume) of air inside IV tubing during common surgical procedures or interventions have yet to be studied prospectively. Understanding the frequency and magnitude of the presence of unintended air in IV tubing is the first step in devising potential avoidance strategies for eliminating unintended air in IV tubing. This study was designed to identify both the sources and magnitude of air that occurs in IV tubing during routine surgical procedures.

Detailed description

Methods: An observational prospective trial was conducted in operating room settings across multiple study sites. 120 surgical patients undergoing a variety of interventional and surgical procedures were selected, representing multiple patient populations, case types and anesthesia setups. The ClearLine IV, a device that detects and removes air from IV tubing, was inserted into the IV circuit. Clinicians followed standard protocols. Blood warmers were used at the practitioner's discretion. IV fluid was administered at a constant flow rate or through a bolus given over 30-60 seconds per standard of care. The volume and duration of fluid administration was recorded, along with the frequency, duration and amount of air captured by ClearLine IV.

Interventions

DEVICEClearLine IV (formerly, AirPurge)

Patient safety device that automatically and continuously detects and actively removes air from IV lines - protecting patients from dangerous air burden, air embolism, air infusions.

Sponsors

ClearLine MD
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE

Masking description

Three sites - Loma Linda Medical Center, Johns Hopkins, Miami Nicklaus Children's

Intervention model description

An observational prospective trial was conducted in operating room settings across multiple study sites. 120 surgical patients undergoing a variety of interventional and surgical procedures were selected, representing multiple patient populations, case types and anesthesia setups. The ClearLine IV, a device that detects and removes air from IV tubing, was inserted into the IV circuit. Clinicians followed standard protocols. Blood warmers were used at the practitioner's discretion. IV fluid was administered at a constant flow rate or through a bolus given over 30-60 seconds per standard of care. The volume and duration of fluid administration was recorded, along with the frequency, duration and amount of air captured by ClearLine IV.

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

* Any age - both pediatric and adult * Weight equal to or greater than 5kg * Surgical procedures * Cardiac catherization procedures * Minimum two hours procedure time

Exclusion criteria

* Patient weight less than 5 kg * Procedures not involving surgery or cardiac catherization * Procedures less than two hours

Design outcomes

Primary

MeasureTime frameDescription
The frequency of air removed from intravenous tubing by ClearLine IV1 yearThe ClearLine IV data monitor measures the frequency (# of air masses) of air removed from IV lines
The amount of air removed from intravenous tubing by ClearLine IV1 yearThe ClearLine IV data monitor measures the amount (mL) of air removed from IV lines

Outcome results

None listed

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