To evaluate the efficacy and safety of the QuikClot® Radial® pad on hemostasis after transradial access (TRA), compared to the standard of care TR Band®, to hopefully develop a safe and efficacious technique to achieve more rapid patent hemostasis after TRA, and improve patient care by optimizing radial hemostasis management.

The QuikClot® Radial® (QC) pad will be applied over the radial artery access site covered with either a Coban™ bandage or a Tegaderm™ dressing after TRA. Firm manual compression will then be applied over the QC pad after the sheath is removed for 5 minutes. The Coban™ cohort will then have the Coban™ bandage removed after an additional 25 minutes, then be covered with a Tegaderm™ dressing. The Tegaderm™ only cohort will be closely observed for 25 minutes after release of manual pressure. Both cohorts will remove the Tegaderm™ dressing the following morning.

Consented subjects will be randomly assigned in the cardiac cath lab upon completion of their procedure into one of the following arms:

Arm 1 - Standard of Care with a TR Band®

Arm 2 - QC pad combined with a Coban™ bandage

Arm 3 - QC pad combined with a Tegaderm™ dressing. This arm was stopped after the enrollment of 73 patients and replaced by the QC/TR Band® arm

Arm 4- QC pad was applied on the radial arterial access site with 30 minutes of compression under a TR Band® inflated with 8-10 mL of air. Then the TR Band® was removed, leaving the QC pad covered with a Tegaderm™ dressing.

Inclusion Criteria:

1. Patients undergoing cardiac catheterization (CC) and/or percutaneous coronary intervention (PCI) via the radial artery as part of their standard of care treatment
2. Patients able and willing to give written informed consent
3. Patient > 18 years of age

Exclusion Criteria:

1. Patients presenting with acute ST-segment elevation myocardial infarction (STEMI)

2. Oral anticoagulation therapy as described below:

   1. If on a DOAC (direct-acting oral anticoagulants - ie dabigatran, rivaroxaban, apixaban, edoxaban), patients will be excluded if DOAC taken within 48 hours and eGFR > 30 ml/min or DOAC taken within 72 hours and eGFR < 30 ml/min.
   2. If the patient is on warfarin, excluded if INR > 1.5

3. Liver Failure

4. Life-threatening illness that the patient would not be expected to live more than 6 months post-procedure

5. Major unanticipated event in the cardiac cath lab (i.e. cardiac arrest) of an already consented patient, but before randomization, where the operator believes participation in this trial is now inappropriate.

6. Thrombocytopenia, with a platelet count of < 75,000.

24 hours

pseudoaneurysm or any other vascular complications during the observation period. Access site bleeding requires surgery or special medical intervention.

This is a single-center study that used the QuikClot® Radial® Pad for hemostasis after radial artery access. There is limited past data on the efficacy of this product that has not been widely used in the past for radial artery hemostasis. The points of view expressed in this report are solely those of the investigative team and do not necessarily represent those of their affiliated organizations or the sponsor, and do not provide a concrete basis for the development of practice guidelines.