Daily PubMed evidence board
Efficacy and safety of transseptal puncture-assisted atrial fibrillation ablation in patients with atrial septal occluder devices: an updated systematic review and meta-analysis.
This systematic review and meta-analysis combined data from observational studies of patients who have an atrial septal occluder (a device placed in the h…
Signal score47Research triage score
CertaintyLowVerify in full text
PMID42234369Source identifier
Research triage, not medical advice
Do not use this summary, score, or benefit-cost estimate to diagnose, treat, prescribe, or change care without reviewing the full study and consulting qualified professionals.
Verify before acting
Check full-text methods, eligibility, outcomes, risk of bias, harms, conflicts, funding, replication, and applicability.
Plain-English signal
This systematic review and meta-analysis combined data from observational studies of patients who have an atrial septal occluder (a device placed in the heart wall) and underwent transseptal puncture to permit catheter ablation for atrial fibrillation. Across nine observational studies totaling 207 patients, about 24% had AF come back during follow-up (pooled), with a lower pooled recurrence (~18%) in studies reporting 12-month follow-up. Reported periprocedural complications were very low (~0.45%), and procedural success was high (~97%) in sensitivity analyses. The authors conclude that, in experienced centers, transseptal puncture-assisted AF ablation in patients with atrial septal occluders appears feasible with low reported complication rates, but confidence is limited because the evidence comes from small, noncomparative observational studies.
Why it matters
- Catheter ablation for atrial fibrillation (AF) requires transseptal puncture (TSP) to access the left atrium; many patients have atrial septal occluder (ASO) devices that alter septal anatomy and could affect procedure feasibility and safety.
- This review pools data on AF recurrence, periprocedural complications, and procedural success specifically in patients with ASO undergoing TSP-assisted catheter ablation-information relevant to electrophysiologists planning procedures and to centers assessing procedural risk.
- The findings inform decisions about whether specialized planning, imaging, or operator experience are needed for AF ablation in patients with ASO devices and identify evidence gaps for higher-certainty studies.
Primary outcomes
- AF recurrence
- Periprocedural complications
- Procedural success
Effect summary
Pooled observational estimates reported AF recurrence ~24% overall (95% CI 18.1-31.0%), 12-month recurrence ~18.2% (95% CI 10.1-30.6%), periprocedural complications ~0.45% (95% CI 0.00-2.09%), and procedural success ~96.6% (95% CI 84.3-100.0%) with higher success (~97.9%) in sensitivity analyses restricted to comparable definitions.
Benefit-cost lens
| Quick take | Observational pooled estimates suggest feasible procedures with low reported periprocedural complication rates in experienced centers, but small noncomparative studies limit confidence; cost-benefit claims need local baseline rates, absolute effect sizes, and cost inputs. |
|---|---|
| BCR anchor | 1 |
| Time horizon | 3 |
| Discount rate | 0.03 |
| Assumptions | Assessment based only on PubMed metadata and abstract; full-text review required to verify study inclusion criteria, definitions, and detailed outcome and harms reporting. |
Benefit-cost fields are assumptions-based unless explicitly source-derived. Treat them as prompts for deeper economic review.
Risk of bias
| Tool | rapid-abstract-screen |
|---|---|
| Verdict | Higher uncertainty |
| Notes | The meta-analysis pooled nine observational, mostly noncomparative studies (n=207). Abstract does not report study-level risk-of-bias assessments, adjustment for confounding, or detailed harms ascertainment. Small sample sizes and potential selection or reporting biases in observational series limit causal inference and precision for rare harms. |
Harms, equity, conflicts & implementation
| Implementation | Before implementation or guideline change: full-text review, assessment of study eligibility and definitions, comparison with institutional baseline outcomes, imaging/operating-room capability check, operator training/experience assessment, and cost/resource evaluation. |
|---|---|
| Equity impact | Unclear from abstract. Potential equity implications if specialized centers or operator expertise are required and access to those centers varies across populations. |
| Harms | Abstract reports a very low pooled periprocedural complication rate, but rare or delayed harms may be under-detected in small observational series; full-text needed for detailed harms breakdown. |
| Replication | Unknown from automated PubMed triage; pooled evidence comes from small observational series without indication of replication in randomized or large prospective cohorts. |
Source links — verify original
Use PubMed and full-text links to confirm methods, population, outcomes, harms, conflicts, and applicability.