Outcomes of Isolated LCx Occlusion
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: LCx Occlusion STEMI, STEMI. Basic parameters: No limits · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Procedural and Clinical Outcomes of Isolated Left Circumflex Coronary Artery Acute Occlusion in Patients Undergoing Primary Percutaneous Coronary Intervention
Overview
To assess procedural success and short term clinical outcomes of primary PCI to isolated LCx acute occlusion.
Detailed description
ST-segment elevation myocardial infarction (STEMI) involving acute occlusion of the left circumflex (LCx) coronary artery represent only 14-21% of STEMIs
LCx acute occlusion may be difficult to be diagnosed . Only 50% of patients with LCx occlusion exhibited ST segment elevation during the acute phase, 38% showed no ST segment changes, while 15% presented with isolated ST segment depression This may lead to delay in transfer to cath lab, delay in reperfusion therapy and consequently loss of more myocytes and more major adverse cardiovascular events (MACE) .
Due to relative rare occurrence of isolated LCx coronary artery occlusion, little is known in literature about the clinical outcomes of isolated LCx occlusion , so we will conduct a retrospective observational study in our tertiary primary percutaneous coronary intervention (PCI) center to detect the incidence , procedural and clinical outcomes after 6 months of patients who had isolated LCx acute occlusion and underwent primary PCI.
Primary outcome measures
- Complications of PPCI to LCx occlusion [Time frame: 6 months]
Secondary outcome measures (1)
- Long follow up of outcomes of PPCI of LCx outcomes [Time frame: 6 months]
Eligibility criteria
Inclusion criteria
- Patients presented to Assiut University heart hospital with STEMI who underwent primary PCI that revealed isolated LCx acute occlusion (single culprit artery) between January 2018 to January 2025 will be included.
Exclusion criteria
-Patients with cardiogenic shock, NYHA class III-IV and multivessel coronary artery disease will be excluded.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Cohort
Study locations
Center list to be confirmed — check the primary protocol.
Publications
- Geffin R, Triska J, Najjar S, Berman J, Cruse M, Birnbaum Y. Why do we keep missing left circumflex artery myocardial infarctions? J Electrocardiol. 2024 Mar-Apr;83:4-11. doi: 10.1016/j.jelectrocard.2023.12.011. Epub 2023 Dec 26. PMID 38181483
- From AM, Best PJ, Lennon RJ, Rihal CS, Prasad A. Acute myocardial infarction due to left circumflex artery occlusion and significance of ST-segment elevation. Am J Cardiol. 2010 Oct 15;106(8):1081-5. doi: 10.1016/j.amjcard.2010.06.016. PMID 20920642
- Stribling WK, Kontos MC, Abbate A, Cooke R, Vetrovec GW, Dai D, Honeycutt E, Wang TY, Lotun K. Left circumflex occlusion in acute myocardial infarction (from the National Cardiovascular Data Registry). Am J Cardiol. 2011 Oct 1;108(7):959-63. doi: 10.1016/j.amjcard.2011.05.027. Epub 2011 Aug 4. PMID 21820644
Identifiers
NCT: NCT06750328 · LCx occlusion