The pressure pull back recording
| • Place sensor in distal coronary artery |
| • Induce sustained maximum hyperaemia by intravenous adenosine, or intracoronary papaverine |
| • Pull back the sensor slowly under fluoroscopy |
| • If a focal pressure drop is present, it can be confirmed by moving the sensor across the stenosis and back again |
| • The individual contribution of every segment and spot to the extent of disease can be studied in this way and the correct position to place the stent(s) can be unequivocally determined |
| • In case of multiple spots considered to be stented, the pull back curve can be repeated after every step |
| • In case of a gradual decline of pressure along the artery, without focal pressure drops, stenting makes no sense and medical treatment is indicated |
| Coronary pressure is unique in this respect and such detailed spatial information cannot be obtained by any other invasive or non-invasive method |