successful guidewire crossing. Tornus is advanced rotating counterclockwise, whereas the Turnpike Gold is advanced by rotating clockwise. Rotating in the opposite direction is needed for removal.
Conclusions
A good operator will have a thorough knowledge of the advantages and limitations of each specific piece of equipment, familiarity with their specific characteristics and modalities of use, and a preparedness to change to an alternative strategy or strategies if required.
Interactive multiple choice questions are available for this chapter on www.wiley.com/go/dangas/cardiology
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CHAPTER 6
Statistical Essentials in the Design and Analysis of Clinical Trials
Usman Baber, Mauro Chiarito, and Stuart J. Pocock
The fundamentals
Significance tests and p‐values
In a well‐conducted
