Publications by authors named "Anshul M Patel"

Article Synopsis
  • Ventricular arrhythmias (VAs) like ventricular tachycardia and ventricular fibrillation pose serious treatment challenges with high risks of morbidity and mortality, particularly in patients unresponsive to standard therapies.
  • This study examined the safety and effectiveness of CT-guided left stellate ganglion cryoneurolysis (SGC) in these refractory VA patients across two hospitals, involving 17 patients with a notable reduction in defibrillation events after the procedure.
  • Results showed that 82% of patients were free from defibrillation 24 hours post-procedure, with no serious adverse effects reported, highlighting the potential of SGC as a beneficial alternative treatment strategy for refractory VAs.
View Article and Find Full Text PDF

Introduction: To evaluate the cost and efficiency of suture-mediated percutaneous closure (SMC) compared to manual compression (MC) after atrial fibrillation (AF) ablation. SMC has been demonstrated to be efficacious in reducing hemostasis and bedrest times after AF ablation. To date, randomized data comparing the direct and indirect cost between the two techniques have not been described.

View Article and Find Full Text PDF

Background: Most studies of device-detected atrial fibrillation (AF) have recommended indefinite anticoagulation once a patient crosses a particular threshold for AF duration or burden. However, durations and burdens are known to fluctuate over time, but little is known about the magnitude of spontaneous fluctuations and the potential impact on anticoagulation decisions.

Objective: To quantify spontaneous fluctuations in AF duration and burden in patients with implantable loop recorders (ILRs) METHODS: We reviewed all ILR interrogations for patients with non-permanent AF at our institution from 2018 to 2023.

View Article and Find Full Text PDF

Background: Because of differences in chest wall anatomy, female patients may have higher rates of subcutaneous implantable cardioverter-defibrillator (S-ICD) pocket-related complications.

Objective: We sought to evaluate sex-based outcomes after S-ICD implantation.

Methods: Patients implanted with an S-ICD at Emory Healthcare between 2010 and 2023 were included in the analysis.

View Article and Find Full Text PDF

Background: Early guidance recommended a bolus of intravenous heparin at the beginning of leadless pacemaker (LP) implantation procedures. However, due to concern about bleeding complications, more recent practice has tended toward omitting the bolus and only running a continuous heparin infusion through the introducer sheath. The impact of omitting the heparin bolus on procedural outcomes is not clear.

View Article and Find Full Text PDF
Article Synopsis
  • - Researchers analyzed records of 5289 patients with DF4 defibrillator leads from 2011 to 2023 to assess long-term performance and frequency of lead-related issues.
  • - Out of the leads studied, only 1.5% showed electrical problems that required replacement, with an average failure time of 4 years; younger age and specific lead manufacturers were linked to a higher malfunction risk.
  • - Overall, DF4 leads demonstrated high durability, with over 98% functioning well after 5 years, indicating their reliability but highlighting the need for more investigation into lead survival differences among brands.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the use of leadless pacemakers (LPs), specifically Micra VR and Micra AV, in patients after cardiac surgery or transcatheter valve interventions from 2014 to 2022.
  • A total of 78 patients were analyzed, revealing that while the devices showed excellent performance with a significant decrease in right ventricle pacing burden, there was also a slight decline in left ventricle ejection fraction over time.
  • The findings highlight the effectiveness of LPs but also indicate a need for further research on their long-term outcomes, especially given their current limitations in atrial pacing.
View Article and Find Full Text PDF

Background: Same-day discharge (SDD) after cardiovascular procedures is rapidly gaining ground.

Objective: We sought to evaluate the safety of SDD after transvenous lead extraction (TLE).

Methods: We performed a retrospective chart review of patients who underwent elective TLE between January 2020 and October 2021 at our institution.

View Article and Find Full Text PDF

Background: Class IC antiarrhythmic agents are effective for treating atrial tachyarrhythmias, but their use is restricted in patients with coronary artery disease (CAD). Data on the safety of the use of IC agents in patients with CAD in the absence of recent acute coronary syndromes are lacking.

Objectives: This study sought to evaluate the safety and feasibility of treatment with IC agents in patients with varying degrees of CAD in a large serial, real-world cohort.

View Article and Find Full Text PDF

Background: There is limited evidence on the long-term clinical benefits of catheter ablation in patients with persistent atrial fibrillation.

Methods: PRECEPT was a prospective, multicenter, single-arm Food and Drug Administration-regulated investigational device exemption clinical study. Patients were followed up to 15 months after ablation.

View Article and Find Full Text PDF

Background: Data on the management of Micra transcatheter pacing system (TPS) at the time of an upgrade or during battery depletion is limited.

Objective: We sought to evaluate the management patterns of patients implanted with a Micra TPS during long-term follow-up.

Methods: We retrospectively identified patients who underwent Micra implantation from April 2014 to November 2019.

View Article and Find Full Text PDF

Background: Wider availability of continuous rhythm monitoring has made feasible the incorporation of metrics of atrial fibrillation (AF) burden and duration into the decision to initiate anticoagulation. However, the relationship between thresholds of burden and duration and underlying risk factors at which anticoagulation should be considered remains unclear.

Objective: The purpose of this study was to evaluate the relationships of these metrics with each other and the outcome of stroke/transient ischemic attack (TIA).

View Article and Find Full Text PDF

Objectives: This study sought to evaluate the safety and effectiveness of catheter ablation of persistent atrial fibrillation (PsAF) using a porous tip contact force-sensing catheter.

Background: Although the safety and effectiveness of catheter ablation of paroxysmal atrial fibrillation are established, there are limited data on outcomes in patients with PsAF. As such, no ablation catheter is currently approved by the Food and Drug Administration for PsAF ablation.

View Article and Find Full Text PDF

Purpose: The prospective, multicenter SMART SF trial demonstrated the acute safety and effectiveness of the 56-hole porous tip irrigated contact force (CF) catheter for drug-refractory paroxysmal atrial fibrillation (PAF) ablation with a low primary adverse event rate (2.5%), leading to FDA approval of the catheter. Here, we are reporting the long-term effectiveness and safety results that have not yet been reported.

View Article and Find Full Text PDF

Background: There are limited data on cardiac implantable electronic device implantation (CIED) in patients with persistent left superior vena cava (PLSVC).

Objective: To describe the outcomes of implanting CIEDs with a focus on cardiac resynchronization therapy (CRT) in patients with PLSVC.

Methods: We identified all patients with a PLSVC that underwent CIED implantation from December 2008 until February 2019 at our institution by querying the electronic medical record (n = 34).

View Article and Find Full Text PDF

Background: Outcomes of catheter ablation for persistent atrial fibrillation (PeAF) are suboptimal. The convergent procedure (CP) may offer improved efficacy by combining endocardial and epicardial ablation.

Methods: We reviewed 113 consecutive patients undergoing the CP at our institution.

View Article and Find Full Text PDF
Article Synopsis
  • - The study compared the effectiveness of transesophageal echocardiography (TEE) and fluoroscopy for measuring the size of the left atrial appendage (LAA) ostium before occlusion procedures in patients undergoing percutaneous LAAO.
  • - Out of 195 patients, 185 had both TEE and fluoroscopic measurements; results showed that fluoroscopy estimated a larger ostial diameter, yet TEE measurements correlated better with the size of the implanted device.
  • - Researchers concluded that while fluoroscopy sizes the LAA ostium larger, TEE is more aligned with device sizing, suggesting that under-sizing can increase the risk of leaks, and further studies should evaluate the routine use of fluoroscopy for this purpose.
View Article and Find Full Text PDF

Background: Data suggests that same day discharge after implantation of trans-venous pacemakers is safe and feasible. We sought to determine whether same day discharge was feasible and safe following implantation of Medtronic MICRA leadless pacemakers.

Methods: We retrospectively identified all patients undergoing MICRA placement at our institution between April 2014 to August 2018 (n=167).

View Article and Find Full Text PDF

Background: Implantation of the MICRA Leadless pacemaker requires the use of a 27 French introducer, blunt delivery system and device fixation to the myocardium via nitinol tines. While prior studies have proven its safety, it is unclear whether performing this procedure with uninterrupted anticoagulation exposes patients to increased risks. We sought to investigate the feasibility and safety of continuing therapeutic anticoagulation during the periprocedural period.

View Article and Find Full Text PDF

The epidemic of atrial fibrillation (AF) requires a comprehensive management strategy that uses the full force of available data and technology, including anticoagulation, ablative therapy, and left atrial appendage occlusion. Patient-centered care with an emphasis on shared decision-making is particularly relevant to the authors' understanding of the complexity of AF and has helped them tailor therapy in this ever-growing patient population.

View Article and Find Full Text PDF

Background: Recommendations regarding performance of magnetic resonance imaging (MRI) in non-MRI conditional pacemaker and defibrillator recipients are evolving. Previous studies have suggested low adverse event rates with MRI in nonconditional cardiac implantable electronic device (CIED) recipients, but low power limits optimal characterization of risk.

Objective: The purpose of this study was to perform a systematic review and meta-analysis to characterize the clinical risk associated with MRI in CIED recipients in order to improve power.

View Article and Find Full Text PDF