The "Five-in-Seven" Guiding Technique to Overcome Proximal Coronary Tortuosity During Primary Percutaneous Coronary Intervention

Deep intubation technique for Complex Percutaneous Coronary Intervention. Insights of a feared and harmless technique

“…Some authors have reported the "five in seven" or the "five in six" technique but cannulation with a more robust catheter could end in vessel complications and fatal results. 32 Our goal is not to minimize the use of other devices or techniques, but to clarify and show the proper use and success of the "deep intubation technique", emphasizing on its low cost and efficacy when performing coronary artery interventions.…”