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The Mapping War

CARTO's 50%+ share was built on two decades of workflow dominance and a locked ecosystem. The ecosystem got unlocked by a court. Medtronic built a catheter that doesn't need a mapping system at all.


CARTO vs Affera

Affera doesn't compete on features. It competes by making CARTO irrelevant for simple AF.

CARTO 3Affera
Capital cost~$500K$0 (disposable)
FDA adverse events66367
Deaths25
Design flaws024
Electrical failures063

So what: CARTO has zero design flaws in two years. Affera has 24 design flaws and 63 electrical failures in year one. But hospitals choose Affera because it eliminates a $500K capital decision.

  • CARTO holds: Complex cases, training, multi-catheter workflows, academic centers.
  • CARTO loses: Community hospitals doing simple AF. ASCs. New programs avoiding capital.

CARTO vs BSX Mapping

Opal HDx (rebranded RHYTHMIA) now integrates with FARAWAVE NAV, giving BSC a complete PFA + mapping workflow. 6 FDA adverse events. Not a safety threat yet.

The real threat: BSC is developing Faraflex — a single catheter that maps and ablates, directly targeting Affera's model. First-in-human Feb 2025. IDE trial expected mid-2026. When it launches, BSC will have market-leading PFA and integrated mapping.

The Antitrust Reframe

The $442M judgment ended CARTO's locked ecosystem. Competitors will reference it.

The response: CARTO is now the most open and most proven platform. Compatible with reprocessed catheters ($400–800/case savings). 20 years of evidence. Open by court order — and better for it.


PFA Class-Wide Risks

Every PFA platform has these problems. J&J should surface them — J&J is the only company that also sells RF.

Hemolysis: Universal

PlatformHemolysis Rate
PulseSelect100%
FARAPULSE97%
VARIPULSE97%
Affera88%

Published clinical data.

So what: Hemolysis is a class-wide issue, not a competitive differentiator. One FARAPULSE patient died from hemolytic renal failure. The J&J advantage: "When hemolysis risk is elevated, we switch to QDOT MICRO. Can your competitor?"

Coronary Narrowing: Not Transient

PFA near coronary arteries causes lasting changes. 2025 JACC imaging study:

  • Wall area: +17% at 3 months
  • Luminal area: -10% at 3 months

So what: "PFA is excellent for standard PVI. For lesions near coronary arteries, RF is safer. We offer both."


The ASC Decision

CMS added AF ablation to ASC-covered procedures in January 2026. VARIPULSE requires CARTO. ASCs won't buy a $500K system.

OptionWhat It MeansRisk
Standalone VARIPULSESimplified PVI without full mappingEngineering investment; may cannibalize CARTO
CARTO-lite for ASCsLower capital cost ($150–200K)Margin compression
Concede ASCsFocus CARTO on hospital labsCedes 30–40% of PFA growth

Abbott's Volt (conscious sedation, no general anesthesia) is an ASC-native advantage. If it works, Abbott owns the segment by default.

The worst outcome is no decision. Every quarter without an ASC strategy is a quarter competitors build installed base you'll never win back.


Hemolysis: Circulation: Arrhythmia. Coronary imaging: JACC Clinical EP (2025). ASC coverage: 2026 OPPS Final Rule.