Publications by authors named "Amin Al Ahmad"

Stereotactic arrythmia radioablation (STAR) is a novel, non-invasive and promising treatment option for ventricular arrythmias (VA). It has been applied in highly selected patients mainly as bail-out procedure, when (multiple) catheter-ablations, together with anti-arrhythmic drugs, were unable to control the VAs. Despite the increasing clinical use there is still limited knowledge of the acute and long-term response of normal and diseased myocardium to STAR.

View Article and Find Full Text PDF
Article Synopsis
  • This study looked at patients with atrial fibrillation (AF) who had a specific heart procedure called pulsed-field ablation (PFA).
  • Researchers wanted to see if having heart rhythm problems right after the procedure could predict problems later.
  • They found that patients who had rhythm issues in the second or third month after PFA were more likely to have problems a year later, suggesting that the "blanking period" should be considered only 1 month instead of 3.
View Article and Find Full Text PDF

Introduction: Hemostasis following large-bore femoral vein access remains a challenge. Manual compression has been the standard of care but requires bedside staff, prolonged bed rest, and longer length of stay. The LockeT is an external compression device that attempts to address these issues while achieving venous hemostasis.

View Article and Find Full Text PDF
Article Synopsis
  • * This manuscript discusses different anesthesia strategies for cardiac implantable electronic devices and electrophysiology procedures, covering management before, during, and after these procedures.
  • * Effective coordination between electrophysiologists and anesthesiologists is essential for successful outcomes, and recent advancements highlight the necessity for specialized anesthesia care in this field.
View Article and Find Full Text PDF
Article Synopsis
  • - Atrial fibrillation (AF) is a common heart rhythm disorder, and the way it's treated in emergency rooms varies widely, affecting patient care and access to effective treatments.
  • - The study, which involved 500 patients, compared outcomes between those treated through an organized pathway for AF and those receiving routine care, finding significant advantages for the organized approach.
  • - Results showed that patients on the organized pathway had faster access to treatments like ablation and anticoagulation, leading to shorter hospital stays and better overall outcomes compared to the control group.
View Article and Find Full Text PDF
Article Synopsis
  • Purkinje fibers are important in causing ventricular fibrillation (VF) and polymorphic ventricular tachycardia (PMVT), and fascicular substrate modification (FSM) is a proposed treatment method for recurrent VF.
  • This study examined 18 patients who underwent catheter-based FSM targeting the Purkinje fibers, finding that the procedure was both safe and effective, with no complications and high success rates.
  • After 24 months, 88.9% of the patients remained free from arrhythmias, highlighting the efficacy of FSM compared to traditional antiarrhythmic medications.
View Article and Find Full Text PDF

Introduction: Both atrial fibrillation (AF) and amyloidosis increase stroke risk. We evaluated the best anticoagulation strategy in AF patients with coexistent amyloidosis.

Methods: Consecutive AF patients with concomitant amyloidosis were divided into two groups based on the postablation stroke-prophylaxis approach; group 1: left atrial appendage occlusion (LAAO) in eligible patients and group 2: oral anticoagulation (OAC).

View Article and Find Full Text PDF

Background: The impact of chronic kidney disease (CKD) on atrial fibrillation outcomes (AF) is not well understood.

Methods: We conducted analyses of comorbid AF and CKD related death in the United States from 1999 to 2020 using descriptive epidemiology.

Results: Age-adjusted mortality rates (AAMR) per 100,000 increased from 0.

View Article and Find Full Text PDF

Background: High-voltage pulses can cause hemolysis.

Objectives: The authors evaluated the occurrence of hemoglobinuria after pulsed-field ablation (PFA) and its impact on renal function in patients with atrial fibrillation (AF).

Methods: A consecutive series of patients with AF undergoing PFA were included in this analysis.

View Article and Find Full Text PDF
Article Synopsis
  • Long-term oral anticoagulation is standard for preventing thromboembolic events in patients with atrial fibrillation, but left atrial appendage occlusion (LAAO) may offer a safe alternative for those with very high stroke risk profiles.
  • This study aimed to compare the safety and effectiveness of LAAO versus direct oral anticoagulants (DOACs) in patients with a high CHADS-VASc score (≥ 5), which indicates a higher stroke risk.
  • Results showed that LAAO had a lower incidence of composite cardiovascular events and bleeding compared to DOACs, suggesting it might be a preferable option for high-risk patients.
View Article and Find Full Text PDF
Article Synopsis
  • 3D-intracardiac echocardiography (ICE) enhances visualization of the left atrial appendage (LAA) during surgical procedures and leads to a high success rate for LAA occlusions.
  • In a study of 274 patients, 3D-ICE showed better accuracy in sizing the device compared to traditional 2D-ICE, with a 96.3% agreement on the final device size.
  • Both imaging methods provided a similar procedural success rate, but 3D-ICE reduced the need for device recapture and resizing during the procedure.
View Article and Find Full Text PDF

Introduction: Transvenous lead extraction (TLE), while mostly a safe procedure, has risk of serious periprocedural complications. As such, overnight hospitalization remains a routine practice. In our center, we routinely discharge patients on the same day following an uncomplicated TLE.

View Article and Find Full Text PDF
Article Synopsis
  • The study analyzed the impact of pulsed-field ablation (PFA) on pulmonary hypertension (PH) in patients with non-paroxysmal atrial fibrillation (AF), comparing it with standard radiofrequency ablation (RFA).
  • It involved 28 patients who had previously undergone multiple RFAs and experienced PH, assessing changes in pulmonary artery pressure before and after the treatment.
  • Results showed that PFA did not worsen mean pulmonary artery pressure compared to RFA, highlighting PFA as a potentially safer option for these patients.
View Article and Find Full Text PDF

Background: Bilateral cardiac sympathetic denervation (BCSD) for refractory life-threatening ventricular arrhythmias is a neuromodulatory intervention targeting sympathetically driven focal or re-entrant ventricular arrhythmias.

Objectives: This study sought to provide a more complete and successful option for intervention in patients in whom premature ventricular contraction (PVC) ablation is not feasible or has been unsuccessful.

Methods: A total of 43 patients with >5% PVC burden and concomitant nonischemic cardiomyopathy (NICM) who previously failed medical and ablation therapies were referred for BCSD.

View Article and Find Full Text PDF

Background: Injury to the esophagus has been reported in a high percentage of patients undergoing ablation of atrial fibrillation (AF).

Objectives: This study assessed the incidence of esophageal injury in patients undergoing ablation of AF with and without an esophageal deviating device.

Methods: This prospective, randomized, multicenter, double-blinded, controlled Food and Drug Administration investigational device exemption trial compared the incidence of ablation-related esophageal lesions, as assessed by endoscopy, in patients undergoing AF ablation assigned to a control group (luminal esophageal temperature [LET] monitoring alone) compared with patients randomized to a deviation group (esophagus deviation device + LET).

View Article and Find Full Text PDF

Introduction: Mechanical force to achieve transseptal puncture (TSP) using a standard needle may lead to overshooting and injury, and can potentially be avoided using a radiofrequency (RF)-powered needle or wire. Applying electrocautery to needles and guidewires as an alternative to purpose-built RF systems has been associated with safety risks, such as tissue coring and thermal damage. The commercially available AcQCross needle-dilator system (Medtronic) features a sharp open-ended needle for mechanical puncture, as well as a built-in connector to enable energy delivery for RF puncture.

View Article and Find Full Text PDF