Yaver Bashir
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Duration of sinus rhythm after direct current cardioversion does not predict recurrence of atrial fibrillation after subsequent catheter ablation: a multicentre study Open
Background Catheter ablation (CA) for persistent atrial fibrillation (PsAF) is associated with high rates of AF recurrence. DC cardioversion (DCCV) is often performed before CA, with wide variation in duration of maintenance of sinus rhyth…
Role of impedance drop and lesion size index (LSI) to guide catheter ablation for atrial fibrillation Open
Background When using lesion size index (LSI) to guide catheter ablation, it is unclear what combination of power, contact force and time would be preferable to use and what LSI target value to aim for. This study aimed at identifying desi…
INtra-procedural ultraSound Imaging for DEtermination of atrial wall thickness and acute tissue changes after isolation of the Pulmonary Veins with radiofrequency, cryoballoon or laser balloon energy: the INSIDE PVs Study Open
Introduction. Preliminary data in human suggest that both Intracardiac echocardiography (ICE) and Intravascular ultrasound (IVUS) can be used for real-time information on the left atrial (LA) wall thickness and on the acute tissue changes …
View article: An active fixation quadripolar left ventricular lead for cardiac resynchronization therapy with reduced postoperative complication rates
An active fixation quadripolar left ventricular lead for cardiac resynchronization therapy with reduced postoperative complication rates Open
Background The rate of left ventricular (LV) lead displacement after cardiac resynchronization therapy (CRT) remains high despite improvements in lead technology. In 2017, a novel quadripolar lead with active fixation technology became ava…
INtra-Procedural UltraSound Imaging for DEtermination of Atrial Wall Thickness and Acute Tissue Changes After Isolation of the Pulmonary Veins with Radiofrequency, Cryoballoon or Laser Balloon Energy: the INSIDE PVs Study Open
Introduction Preliminary data in human suggest that both Intracardiac echocardiography (ICE) and Intravascular ultrasound (IVUS) can be used for real-time information on the left atrial (LA) wall thickness and on the acute tissue changes p…
Atrial nitroso-redox balance and refractoriness following on-pump cardiac surgery: a randomized trial of atorvastatin Open
Aims Systemic inflammation and increased activity of atrial NOX2-containing NADPH oxidases have been associated with the new onset of atrial fibrillation (AF) after cardiac surgery. In addition to lowering LDL-cholesterol, statins exert ra…
Power, Lesion Size Index and Oesophageal Temperature Alerts During Atrial Fibrillation Ablation Open
Background: Low radiofrequency powers are commonly used on the posterior wall of the left atrium for atrial fibrillation ablation to prevent esophageal damage. Compared with higher powers, they require longer ablation durations to achieve …
Myocardial Perfusion Is Impaired and Relates to Cardiac Dysfunction in Patients With Atrial Fibrillation Both Before and After Successful Catheter Ablation Open
Background Atrial fibrillation ( AF ) is associated with myocardial infarction, and patients with AF and no obstructive coronary artery disease can present with symptoms and evidence of cardiac ischemia. We hypothesized that microvascular …
An Observational Study of Midline Abdominal Wound Closure Using Small Tissue Bites versus Large Tissue Bites with Reference to Surgical Site Infections and Wound Dehiscence Open
Background: Midline incisions have advantage of rapid and wide access to the abdominal cavity with minimal damage to muscles, nerves and the vascular supply of the abdominal wall, hence causing minimal long term morbidity. The techniques o…
35Power, lesion size index and oesophageal temperature alerts during atrial fibrillation ablation (PILOT-AF): a randomized study Open
Background: Oesophageal heating is a collateral effect of RadioFrequency (RF) catheter ablation for atrial fibrillation (AF) on the left atrial (LA) posterior wall.It is attributed to conductive heat transfer from the ablation site, a time…
Endocardial left ventricular pacing for cardiac resynchronization: systematic review and meta-analysis Open
LV endocardial pacing appears to be a viable technique when conventional lead placement is not possible. Response rates were heterogeneous but comparable with conventional CRT. There is likely to be a small increase over expected rates of …
Lone Atrial Fibrillation Is Associated With Impaired Left Ventricular Energetics That Persists Despite Successful Catheter Ablation Open
Background: Lone atrial fibrillation (AF) may reflect a subclinical cardiomyopathy that persists after sinus rhythm (SR) restoration, providing a substrate for AF recurrence. To test this hypothesis, we investigated the effect of restoring…
Atrial fibrillation is associated with impaired left ventricular energetics that persist despite successful catheter ablation Open
Atrial fibrillation (AF) is associated with subclinical left ventricular (LV) dysfunction and overt heart failure, but causal relationships are incompletely defined. Both AF and LV dysfunction may be tissue-specific manifestations of an un…
138 Atrial Fibrillation is Associated with Left Ventricular Dysfunction and Impaired Myocardial Energetics that Persist Despite Catheter Ablation: Is Atrial Fibrillation the Chicken or The Egg? Open
Introduction Atrial fibrillation (AF) is associated with increased risk of heart failure and premature death, and is often resistant to treatment. Animal models of pacing-induced AF indicate that AF-induced endothelial dysfunction, impaire…
Premature termination of radiofrequency delivery during pulmonary vein isolation due to oesophageal temperature alerts: impact on acute and chronic pulmonary vein reconnection Open
Just over half of patients undergoing PV isolation will have an oesophageal temperature alert, however, precautionary oesophageal temperature monitoring does not compromise ablation efficacy.
Catheter ablation of atrial fibrillation in patients with heart failure: impact of maintaining sinus rhythm on heart failure status and long-term rates of stroke and death Open
Long-term success rates for persistent (but not paroxysmal) AF ablation are significantly lower in HF patients. Left ventricular function and HF symptoms were improved following ablation. In HF patients, recurrent arrhythmia strongly predi…
The Role of Adenosine in Pulmonary Vein Isolation: A Critical Review Open
The cornerstone of atrial fibrillation (AF) ablation is pulmonary vein isolation (PVI), which can be achieved in more than 95% of patients at the end of the procedure. However, AF recurrence rates remain high and are related to recovery of…