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OpenTrials
Completed

NCT Number: NCT04404257

Reduce Radiation Exposure in Fluoroscopic Interventions Evaluation

The purpose of this study is to determine whether the ControlRad system device when installed in Fluoroscopic (x-ray) machine reduces radiation dose to operators (Doctors and nurses) and to the patient who is undergoing cardiac Catheterization and electrophysiology (EP) implant procedures.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Beaumont Hospital - Royal Oak

Royal Oak, Michigan, 48073, United States

About this study

This is a Prospective, randomized (like a "flip of a coin") single center study evaluating the ControlRad system device when installed - retrofitted on existing C-arms for fluoroscopy (x-ray) will reduce radiation exposure without compromising image quality in the region of interest and overall workflow during cardiac catheterization and electrophysiology (EP) implant procedures. Enrollment will be limited to 40 cardiac catheterization, and 30 pacemaker and/or ICD procedures. All patients presenting to Beaumont Hospital Royal Oak who are scheduled for cardiac catheterization with coronary angiography and electrophysiology implant in Cath Lab 5 where device is installed will be considered for inclusion in the study. Physicians and staff (20 fellows; 35 attending physicians; and 56 Cath-lab staff,including Nurse/Anesthesia team) will be invited to participate in the study. For each procedure, 3 staff members will be study subjects: a) the primary operator, b) the secondary operator, c) the nurse/tech and or Anesthetist who circulates in the room. Different operators and staff may participate in each case depending on cath-lab scheduling. The Primary operator is the physician who usually stands nearest to the C-arm. In most cases in Beaumont this is a Cardiology Fellow in cardiac catheterization cases and Attending Physician for the EP cases. The Secondary operator is the physician who typically stands to the right of the primary operator and in most cases is the attending cardiologist or scrub assistant (nurse/technician). The Nurse or Anesthesia team typically circulates in the room and is responsible for monitoring the patient, administering medications and obtaining equipment for the procedure.

Two methods will be used to measure radiation dose during the catheterization procedure. The Real-time Dosimeter Badge (RaySafe) and the Landauer Luxel Aluminium Oxide Dosimeter Badges. Cardiac Catheterization and electrophysiology implant procedures will be performed according to standard guidelines.

Participants will be randomized 1:1 to either cardiac catheterization without ControlRad or cardiac catheterization with the ControlRad system. The same 1:1 randomization process will be applied to the EP patient population. Participants will be blinded to the randomization.

Once procedure is done,participation also ended and the badges will be removed by the Radiation Safety Officer or research coordinator.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • - Patient
  • Scheduled to undergo left heart catheterization with angiography, and/or percutaneous coronary intervention
  • Scheduled to undergo pacemaker or ICD implant
  • EP device upgrade
  • Able to provide written informed consent prior to the procedure
  • Age ≥18 years
  • Physicians and Staff o Able to provide consent for the study

Exclusion criteria

  • - Patient
  • Cardiogenic shock
  • Reason for cath procedure is pericardiocentesis
  • Subcutaneous ICDs
  • Lead revisions
  • Inability to provide informed consent
  • Pregnant
  • Physicians and Staff
  • Those who are not willing to participate in the study

Treatment and study plan

ControlRad System

Radiation

Cardiac Catheterization or electrophysiology implant procedures with Control Rad system device installed in the cath lab room #5.

Without ControlRad System

Radiation

Cardiac Catheterization or electrophysiology implant procedures in cath lab room 5 without the ControlRad system device.

Primary outcomes

  1. Radiation Dose to Primary Operator (RaySafe), Cardiac Catheterization

    Time frame: During each cardiac catheterization, an average of 90 minutes

    Median effective radiation dose in microsievert (μSv) to the primary operator at the thyroid. This was measured using a RaySafe dosimeter to assess the radiation dose in each case.

  2. Radiation Dose to Primary Operator (Luxel Dosimeter), Cardiac Catheterization

    Time frame: During each cardiac catheterization, an average of 90 minutes

    Mean effective radiation dose in microsievert (μSv) to the primary operator at the thyroid. This was measured using a single Luxel dosimeter over all cases to assess the cumulative dose in the study arm.

  3. Radiation Dose to Primary Operator, EP Procedure (Luxel)

    Time frame: During each EP implant procedure, an average of 90 minutes

    Mean effective radiation dose in microsievert (μSv) to the primary operator at the end of each EP implant procedure. A single Luxel dosimeter was and a cumulative dose was recorded.

  4. Radiation Dose to Primary Operator, EP Procedure (RaySafe)

    Time frame: During each EP implant procedure, an average of 90 minutes duration

    Median effective radiation dose in microsievert (μSv) to the primary operator at the end of each EP implant procedure using a RaySafe dosimeter. This is measured after each case.

Secondary outcomes

  1. Radiation Dose to Secondary Operator, Cardiac Catheterization (RaySafe)

    Time frame: During each cardiac catheterization, an average of 90 minutes

    Median effective radiation dose (μSv) to the secondary operator at the thyroid. This was measured using a RaySafe dosimeter to assess the radiation dose in each case.

  2. Radiation Dose to Secondary Operator (Luxel Dosimeter), Cardiac Catheterization

    Time frame: During each cardiac catheterization, an average of 90 minutes

    Mean effective radiation dose in microsievert (μSv) to the secondary operator at the thyroid. This was measured using a single Luxel dosimeter over all cases to assess the cumulative dose in the study arm.

  3. Radiation Dose to Nurse or Anesthetist, Cardiac Catheterization (RaySafe)

    Time frame: During each cardiac catheterization, an average of 90 minutes

    Median effective radiation dose in microsievert (μSv) to the Nurse 0r Anesthetist at the thyroid. This was measured using a RaySafe dosimeter to assess the radiation dose in each case.

  4. Radiation Dose to Nurse or Anesthetist, Cardiac Catheterization (Luxel)

    Time frame: During each cardiac catheterization, an average of 90 minutes

    Mean effective radiation dose in microsievert (μSv) to the Nurse or Anesthetist at the thyroid. This was measured using a single Luxel dosimeter over all cases to assess the cumulative dose in the study arm.

  5. Radiation Dose to Patient, Cardiac Catheterization

    Time frame: During each cardiac catheterization, an average of 90 minutes

    Median radiation dose-area product (DAP) to the patient at the end of each cardiac catheterization case using data from a fluoroscopy machine. DAP is defined as the absorbed dose multiplied by the area irradiated micro-gray μGy*m^2.

  6. Radiation Dose in Cath Lab Room #5, Cardiac Catheterization

    Time frame: During each cardiac catheterization, an average of 90 minutes

    Mean radiation dose microsieverts (μSv) at the end of each cardiac catheterization case at a standard location on the wall of the catheterization laboratory. This was measured using a single Luxel dosimeter over all cases to assess the cumulative dose in the study arm.

  7. Radiation Dose to Secondary Operator, EP Procedure (RaySafe)

    Time frame: During each EP implant procedure, an average of 90 minutes

    Mean effective radiation dose (μSv) to the secondary operator at the at the thyroid. This was measured using a RaySafe dosimeter to assess the radiation dose in each case.

  8. Radiation Dose to Secondary Operator, EP Procedure (Luxel)

    Time frame: During each EP implant procedure, an average of 90 minutes

    Mean effective radiation dose (μSv) to the secondary operator at the at the thyroid. This was measured using a single Luxel dosimeter over all cases to assess the cumulative dose in the study arm.

  9. Radiation Dose to Nurse or Anesthetist, EP Procedure (RaySafe)

    Time frame: During each EP implant procedure, an average of 90 minutes

    Median effective radiation dose in microsievert (μSv) to the primary operator at the thyroid. This was measured using a RaySafe dosimeter to assess the radiation dose in each case.

  10. Radiation Dose to Nurse or Anesthetist, EP Procedure (Luxel)

    Time frame: During each EP implant procedure, an average of 90 minutes

    Mean effective radiation dose in microsievert (μSv) to the primary operator at the thyroid. This was measured using a single Luxel dosimeter over all cases to assess the cumulative dose in the study arm.

  11. Radiation Dose to Patient, EP Procedure

    Time frame: During each EP implant procedure, an average of 30-45 minutes of active radiation

    Mean radiation dose-area product (DAP) to the patient at the end of each EP implant procedure using data from a fluoroscopy machine. DAP is defined as the absorbed dose multiplied by the area irradiated (μGy*m^2)

  12. Radiation Dose in Cath Lab Room #5, EP Procedure

    Time frame: During each EP implant procedure, an average of 90 minutes

    Mean radiation dose (μSv) at the end of each EP implant procedure at a standard location on the wall of the catheterization laboratory. This was measured using a single Luxel dosimeter over all cases to assess the cumulative dose in the study arm.

Sponsors and collaborators

Lead sponsor

Corewell Health East

Other

Registry information

Official study title

Reduce Radiation Exposure in Fluoroscopic Interventions Evaluation (REDEFINE): A Prospective, Randomized Evaluation of the ControlRad System to Reduce Radiation Exposure During Cardiac Catheterization and Electrophysiology (EP) Procedures.

Acronym: REDEFINE

Important dates

Study start
2020
Primary completion
2021
Study completion
2021
First posted
May 27, 2020
Registry last updated
Jan 11, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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