Coronary “Collateralization” or “De-collateralization” by Percutaneous Coronary Intervention in the Collateral Flow Supplying or Receiving Vessel
Keywords:coronary collaterals, percutaneous coronary intervention, myocardial infarction, chronic total coronary occlusion, coronary artery disease, coronary angiography
Images of coronary angiography are being presented of two patients undergoing percutaneous coronary intervention (PCI). In the first patient with chronic total vessel occlusion, who also had a significant stenosis of the contralateral artery, there were no visible collaterals, which became fully functional and visible right after the successful PCI of the contralateral lesion (collateralization by PCI). In the second patient with acute myocardial infarction undergoing primary PCI of a total vessel occlusion, there was good collateral supply (provided by the contralateral vessel), which vanished upon restoration of anterograde flow to the totally occluded artery (de-collateralization by PCI).
LicenseAuthors who publish with this journal agree to the following terms:
a. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
b. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
c. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).