Publications by authors named "Michelle Nsahlai"
Gender-related differences have been reported in patients who underwent pulmonary vein isolation (PVI). Atrial substrate plays a role in the outcomes after ablation but gender-related differences in atrial substrate have never been described in detail. We sought to analyze gender-related differences in atrial remodeling (spontaneous low-voltage zones [LVZs]) and their clinical relevance after PVI.
View Article and Find Full Text PDFBackground: The benefit of an anterior mitral line (AML) in patients with persistent atrial fibrillation (AF) and anterior atrial scar undergoing ablation has never been investigated.
Objective: The purpose of this study was to evaluate the outcomes of AML in addition to standard treatment compared to standard treatment alone (no AML) in this subset of patients.
Methods: Patients with persistent AF and anterior low-voltage zone (LVZ) treated with AML in 3 centers were retrospectively enrolled.
Article Synopsis
- A study analyzed the relationship between low-voltage zones (LVZs) in the left atrium and the recurrence of atrial fibrillation (AF) in patients who underwent pulmonary vein isolation, finding that a higher percentage of LVZs correlated with increased recurrence rates.
- The research involved 262 patients, showing that more than 5% LVZ in paroxysmal AF and over 15% in persistent AF significantly raised the risk of AF recurrence within 28 months.
- The findings suggest that not all LVZs are equally significant in predicting outcomes; some patients may experience AF recurrence without the expected volume of LVZs, indicating complex underlying heart tissue changes.
Case report of a patient with no significant past medical history who presented with reports of dizziness, dyspnea on exertion, and palpitations that had been ongoing for at least 5 years. It demonstrates the importance of considering the presence of an inter-atrial shunt when evaluating a patient with an unexplained dilated right atrium and right ventricle.
View Article and Find Full Text PDFAdvanced Techniques for Ethanol Ablation of Left Ventricular Summit Region Arrhythmias.
Circ Arrhythm Electrophysiol
August 2022
Background: Coronary venous ethanol ablation (VEA) can be used as a strategy to treat ventricular arrhythmias arising from the left ventricular summit, but collateral flow and technical challenges cannulating intramural veins in complex venous anatomies can limit its use. Advanced techniques for VEA can capitalize on collateral vessels between target and nontarget sites to improve success.
Methods: Of 55 patients with left ventricular summit ventricular arrhythmia, advanced techniques were used in 15 after initial left ventricular summit intramural vein mapping failed to show suitable targets for single vein, single-balloon VEA.
Background: Racial inequities for patients with heart failure (HF) have been widely documented. HF patients who receive cardiology care during a hospital admission have better outcomes. It is unknown whether there are differences in admission to a cardiology or general medicine service by race.
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