“Combo” technique for the use of 7F guide catheter system during transradial approach

Abstract

Even a regular lumen of radial artery may create difficulty in smooth negotiation and propagation of a 7F guide catheter while performing intervention through transradial approach. We describe successive five cases of a simple and innovative "Combo" technique, which helps relatively atraumatic tracking of a 7F guide catheter through the course of arm and chest vasculature for successful completion of procedure without significant damage and local pain.

Transradial Artery Access in Percutaneous Coronary Intervention for ST-Segment Elevation Myocardial Infarction and Cardiogenic Shock

“…Although there is no data particular to the CS population, a prospective, multicenter randomized controlled all-comers trial (n = 698) evaluated the use of ultrasound guidance facilitated TRA compared with palpation alone and demonstrated a significantly lower number of attempts (2.4 vs. 18.6% for ≥ 5 attempts, p < 0.001) and a numerically lower time to access (3.7 vs. 6.8% for ≥5 min, p = 0.07) in the ultrasound group [54]. Other techniques that may facilitate procedural success in CS include the use of smaller caliber guides, sheathless guides, and/or BAT techniques; however, data with all of these techniques in CS are lacking [44,55,56].…”