Table 1.
Lipton’s classification of single coronary artery
| Code | Description | |
|---|---|---|
| Ostial Location | R | Right Sinus of Valsalva |
| L | Left Sinus of Valsalva | |
| Anatomical Distribution | I | The solitary dominant vessel follows the course of either a normal right or left coronary artery (RI or LI) |
| II | One coronary artery arises from the proximal part of the normally located other coronary artery (RII or LII) | |
| III | LAD and LCX arise separately from a common trunk originating from the right sinus of Valsalva (RIII) | |
| Course of the transverse trunk | A | Anterior to the great vessels |
| B | Between the aorta and pulmonary arteries | |
| P | Posterior to the great vessels | |
| S | ‘Septal type’: a part of the route passes through the interventricular septum | |
| C | ‘Combined type’: combination of diverse routes |
Reprinted from Coronary angioplasty with stenting for acute coronary syndrome in patients with an isolated single coronary artery: a report of two cases Journal of Cardiovascular Medicine: July 2009 - Volume 10 - Issue 7)