ArticleJournal of thoracic disease2014
Effects of different LAD-blocked sites on the development of acute myocardial infarction and malignant arrhythmia in a swine model.
Article in Journal of thoracic disease, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 13 citations in OpenAlex.
- Selected Large-Animal Models of Ventricular Arrhythmias.Biology · 2026Review
- Device-driven cyclic compression of the superior vena cava as a preload reduction strategy to improve cardiac function in heart failure: a pilot feasibility study.Scientific reports · 2026Article
- Development and Validation of a Nomogram to Predict Ventricular Fibrillation During Percutaneous Coronary Intervention in Patients With Acute Myocardial Infarction.Reviews in cardiovascular medicine · 2025Article
- The Impact of a Modified Anaesthetic Protocol on Animal Survival and the Characteristics of Ventricular Arrhythmias in the Course of Acute Myocardial Infarction in a Domestic Pig Model.Journal of veterinary research · 2022Article
- Cardioprotective Effect of Acetylsalicylic Acid in the Myocardial Ischemia-Reperfusion Model on Oxidative Stress Markers Levels in Heart Muscle and Serum.Antioxidants (Basel, Switzerland) · 2022Article
- A Robust Percutaneous Myocardial Infarction Model in Pigs and Its Effect on Left Ventricular Function.Journal of cardiovascular translational research · 2021Article
- Increasing Veno-Arterial Extracorporeal Membrane Oxygenation Flow Reduces Electrical Impedance of the Lung Regions in Porcine Acute Heart Failure.Physiological research · 2020Article
- Ventricular Arrhythmias in First Acute Myocardial Infarction: Epidemiology, Mechanisms, and Interventions in Large Animal Models.Frontiers in cardiovascular medicine · 2019Review
- Cardioprotective effects and underlying mechanism of Radix Salvia miltiorrhiza and Lignum Dalbergia odorifera in a pig chronic myocardial ischemia model.International journal of molecular medicine · 2018Article
- Detection of Acute Myocardial Infarction in a Pig Model Using the SAN-Atrial-AVN-His (SAAH) Electrocardiogram (ECG), Model PHS-A10, an Automated and Integrated Signals Recognition System.Medical science monitor : international medical journal of experimental and clinical research · 2018Article
- Preclinical modeling and multimodality imaging of chronic myocardial infarction in minipigs induced by novel interventional embolization technique.EJNMMI research · 2016Article
- Penehyclidine Hydrochloride Preconditioning Provides Cardioprotection in a Rat Model of Myocardial Ischemia/Reperfusion Injury.PloS one · 2015Article
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo explore the effects of various left anterior descending (LAD) artery-blocked sites on the development of acute myocardial infarction (AMI) and malignant arrhythmia in a swine model.
methodsTwenty-two pigs underwent occlusion of the coronary artery with balloon angioplasty were randomly divided into three groups according to the blocked site of the balloon: middle-site-blocked LAD group, bottom-third-blocked LAD group and control group. Then, the development of AMI and malignant arrhythmia, including ventricular tachycardia and ventricular fibrillation during the process of model creation, were recorded. Changes of the hemodynamics, blood gas analysis, electrocardiography, and myocardial enzymes were analyzed in each group before and after occlusion.
resultsMiddle-site-LAD blockage resulted in a larger infarction size and the corresponding incidence of ventricular fibrillation was significantly higher than that of the bottom-third-blocked group (P<0.05). After the occlusion, the QTc interval of the Middle-site-blocked LAD group was significantly longer than that in the other groups (P<0.01). Moreover, mean arterial blood pressure (MAP), left ventricular ejection fraction (LVEF), and partial pressure of oxygen (PaO2) were significantly lower, but partial pressure of carbon dioxide (PaCO2) increased, in the Middle-site-blocked-LAD group compared with that in the bottom-third-blocked group (P<0.01). Compared with the control group, the two LAD-blocked groups showed significantly higher levels of Mb, CK-MB, LDH, AST and cTnT (P<0.01) four hours after the artery occlusion. However, these indexes were not significantly different between the two LAD-blocked groups (P>0.05).
conclusionsLocation of LAD blockages in swine models may affect the development of AMI and malignant arrhythmia.
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