Comparing TR Band to Statseal in Conjunction With TR Band

This study is a physician initiated, prospective, observational, two arm, randomized study to be performed at up to four experienced 'Radial First' centers (UCSD, UCLA. Arkansas Heart Hospital and LBVA). A maximum of 180 patients having undergone successful radial catheterization will be enrolled in the study, 60 in each arm. 60 patients will be enrolled at the LBVA. Enrollment will continue at each site on discretion of the investigators until each center enrolls a minimum of 30 patients, or a maximum of 180 patients are enrolled. Clinicians will perform the catheterization in accordance with local standard practice, with a minimum of 5,000 units of unfractionated heparin for anticoagulation. At the start of the TRA procedure, prior to radial artery cannulation, a baseline Pleth-ox exam will be performed for all patients and recorded on the CRF. Ulnar compression will be applied to confirm that the radial artery is patent. Patients with a type D pattern exam will be excluded from the study. At the conclusion of a successful transradial procedure, the patient will be randomized to either SSA or TRB, each device applied per protocol \& IFU. It is hypothesized that if radial artery compression time can be shortened to 40 minutes or less, the following could result: improved catheterization lab efficiency, greater patient satisfaction and lower complication rates, including RAO, may be improved.