Nileshkumar J Patel1, Abhishek Deshmukh2, Dhaval Pau3, Vishal Goyal1, Samir V Patel4, Nilay Patel5, Kanishk Agnihotri5, Samuel Asirvatham2, Peter Noseworthy2, Luigi Di Biase6, Andrea Natale7, Juan F Viles-Gonzalez8. 1. University of Miami Miller School of Medicine, Miami, Florida. 2. Mayo Clinic, Rochester, Minnesota. 3. Staten Island University Hospital, Staten Island, New York. 4. Western Reserve Health System, Youngstown, Ohio. 5. Saint Peter׳s University Hospital, New Brunswick, New Jersey. 6. Albert Einstein College of Medicine, Bronx, New York,; Texas Cardiac Arrhythmia Institute, St. David׳s Medical Center, Austin, Texas. 7. Texas Cardiac Arrhythmia Institute, St. David׳s Medical Center, Austin, Texas. 8. University of Miami Miller School of Medicine, Miami, Florida. Electronic address: j.vilesgonzalez@med.miami.edu.
Abstract
BACKGROUND: Atrial flutter (AFL) ablation has been increasingly offered as first-line therapy and safely performed over the last decades. However, limited data exist regarding current utilization and trends in adverse outcomes arising from this procedure. OBJECTIVE: The aim of our study was to examine the frequency of adverse events attributable to AFL ablation and influence of hospital volume on safety outcomes. METHODS: Data were obtained from the Nationwide Inpatient Sample, the largest all-payer inpatient dataset in the United States. Patients with AFL who underwent catheter ablation from 2000 to 2011 were identified using ICD-9 codes. In-hospital death and common complications were identified, including cardiac perforation and tamponade, pneumothorax, stroke, transient ischemic attack, and vascular access complications. RESULTS: A total of 89,638 AFL patients were treated with catheter ablation during our study period. Total number of ablations performed increased by 154% from 2000 to 2011. The in-hospital mortality rate was 0.17% and the overall complication rate was 3.17%. Cardiac complications (1.44%) were the most frequent, followed by respiratory (0.88%), vascular (0.78%), and neurological complications (0.05%). Low hospital volume (<50 procedures/year) was significantly associated with increased adverse outcomes. Overall frequency of complications per 100 ablation procedures increased from 2.86 in 2000 to 5.39 in 2011 (P < .001). CONCLUSIONS: The overall complication rate was 3.17% in patients undergoing AFL ablation. There was a significant association between low hospital volume and increased adverse outcomes. This suggests a need for future research into identifying the safety measures in AFL ablations and instituting appropriate interventions to improve overall AFL ablation outcomes.
BACKGROUND:Atrial flutter (AFL) ablation has been increasingly offered as first-line therapy and safely performed over the last decades. However, limited data exist regarding current utilization and trends in adverse outcomes arising from this procedure. OBJECTIVE: The aim of our study was to examine the frequency of adverse events attributable to AFL ablation and influence of hospital volume on safety outcomes. METHODS: Data were obtained from the Nationwide Inpatient Sample, the largest all-payer inpatient dataset in the United States. Patients with AFL who underwent catheter ablation from 2000 to 2011 were identified using ICD-9 codes. In-hospital death and common complications were identified, including cardiac perforation and tamponade, pneumothorax, stroke, transient ischemic attack, and vascular access complications. RESULTS: A total of 89,638 AFL patients were treated with catheter ablation during our study period. Total number of ablations performed increased by 154% from 2000 to 2011. The in-hospital mortality rate was 0.17% and the overall complication rate was 3.17%. Cardiac complications (1.44%) were the most frequent, followed by respiratory (0.88%), vascular (0.78%), and neurological complications (0.05%). Low hospital volume (<50 procedures/year) was significantly associated with increased adverse outcomes. Overall frequency of complications per 100 ablation procedures increased from 2.86 in 2000 to 5.39 in 2011 (P < .001). CONCLUSIONS: The overall complication rate was 3.17% in patients undergoing AFL ablation. There was a significant association between low hospital volume and increased adverse outcomes. This suggests a need for future research into identifying the safety measures in AFL ablations and instituting appropriate interventions to improve overall AFL ablation outcomes.
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