Arrhythmias & electrophysiologyCohort study

Safety and Efficacy of Combining Left Atrial Appendage Occlusion With Another Cardiac Procedure

JACC Cardiovasc IntervPublished

  • Retrospective cohort study
  • National Inpatient Sample 2016–2020
  • risk-adjusted

Authors' conclusion

In this retrospective observational study, combining LAAO with another cardiac intervention appeared to be associated with similar MACEs and LOS. However, certain complications appeared to be more frequent, and the cost was higher with combined procedures.

Study context

Population
Patients undergoing Left Atrial Appendage Occlusion (LAAO), US National Inpatient Sample 2016–2020
Participants
88,910 weighted encounters
Exposure
LAAO combined with another cardiac procedure vs isolated LAAO
  • Concomitant proceduren = 1,225

Main finding

MACE (risk-adjusted) · in-hospital

Adjusted odds ratio

1.82

95% CI 0.94–2.74

Concomitant procedure vs Isolated LAAO
adjusted OR 1.82 (95% CI 0.94–2.74)

As reported in the abstract

Observational data: associations, not effects.

Further findings

Length of stay

P = 0.32

OutcomeConcomitant procedureIsolated LAAOP value
Total costs$44,723$32,364P < 0.01
LOS and costs vs LAAO with sequential procedures — Concomitant procedure vs LAAO with sequential procedures · LOS 1 day vs 2 daysP < 0.01
LOS and costs vs LAAO with sequential procedures — Concomitant procedure vs LAAO with sequential procedures · costs $51,552 vs $63,170P = 0.04

In-hospital mortality and complications (stroke, AKI, major bleeding, transfusion, vascular injury)

Similar adjusted odds vs isolated LAAO

Safety

Complications by concomitant procedure (subgroups)

Concomitant AF/atrial flutter ablation: higher adjusted odds of heart block
P < 0.01
Concomitant TAVR: higher adjusted odds of stroke
P = 0.02
Concomitant TAVR: higher adjusted odds of vascular injury
P < 0.01

Original publication

Safety and Efficacy of Combining Left Atrial Appendage Occlusion With Another Cardiac Procedure. JACC Cardiovasc Interv. Published 22 January 2024. doi:10.1016/j.jcin.2023.10.017

Summarised from the published abstract; every number is checked against it