Arrhythmia

Maze Procedure (Cox-Maze).

Expert second opinions for maze procedure (cox-maze). Dual-physician Heart Team review with triple risk scoring. Results in 24 hours.

Applicable to millions with AF
Prevalence
Minimal incremental risk as concomitant procedure
Key Outcome
Cox-Maze IV success rate >90% at expert centers
Procedures
Quick Answer

Maze Procedure (Cox-Maze) the surgical gold standard for atrial fibrillation treatment, with freedom from AF exceeding 90% at experienced centers. If you are facing a decision about maze procedure (cox-maze), an independent Heart Team second opinion can confirm whether surgery is the right choice and identify alternatives. WhiteGloveMD delivers dual-physician review with STS, EuroSCORE II, and AATS risk scoring in 24 hours. Get an independent second opinion →

Overview

Understanding maze procedure (cox-maze).

The Cox-Maze procedure is the surgical gold standard for atrial fibrillation treatment, with freedom from AF exceeding 90% at experienced centers. The operation creates a precise pattern of lesions (using cryoablation or radiofrequency) that interrupt the chaotic electrical circuits causing AF.

Why It Matters

Why you need a second opinion.

Many patients undergoing cardiac surgery have AF that goes untreated, despite guidelines recommending concomitant ablation. The Maze procedure adds 15-20 minutes of operative time with minimal additional risk. A second opinion can identify missed opportunities for AF treatment during planned cardiac surgery.

Critical Decisions

Key decisions for maze procedure (cox-maze).

Concomitant Maze during planned cardiac surgery
Full Maze (biatrial) vs left-sided only lesion set
Standalone surgical ablation vs catheter ablation
Left atrial appendage management
Post-procedure antiarrhythmic and anticoagulation strategy
Risk Factors

What affects your risk.

AF type and duration
Left atrial size
Concurrent structural heart disease
Previous failed ablation attempts
Surgeon Maze experience
Our Review

What our Heart Team provides.

Dual-physician review (cardiac surgeon + cardiologist)
Triple risk scoring (STS PROM, EuroSCORE II, AATS)
ACC/AHA guideline mapping with evidence grades
Treatment alternatives with risk-benefit comparison
Surgeon and institution matching via Sentinel
Personalized question guide for your next appointment
Complete provenance trail for every conclusion
Results delivered within 24 hours
Common Questions

Frequently asked questions.

Do I need surgery for maze procedure (cox-maze)?

Surgery for maze procedure (cox-maze) depends on symptom severity, imaging findings, and risk profile. Guidelines from the AHA/ACC define specific thresholds, but many patients fall into gray zones where a second opinion meaningfully changes the recommendation. Many patients undergoing cardiac surgery have AF that goes untreated, despite guidelines recommending concomitant ablation. The Maze procedure adds 15-20 minutes of operative time with minimal additional risk. A second opinion can identify missed opportunities for AF treatment during planned cardiac surgery.

What are the risks of maze procedure (cox-maze) surgery?

Operative mortality for maze procedure (cox-maze)-related cardiac surgery is calculated using validated models including STS PROM, EuroSCORE II, and AATS. Individual risk depends on age, comorbidities, frailty, ejection fraction, and surgeon/center volume. Our free calculator at whiteglovemd.com/tools/risk-calculator estimates your specific risk across all three models in real time.

Should I get a second opinion before maze procedure (cox-maze) surgery?

Yes. Studies show that 30-40% of expert cardiac surgery second opinions change the original treatment plan — sometimes by recommending less-invasive alternatives, sometimes by clarifying that watchful waiting is safer. WhiteGloveMD pairs a cardiac surgeon and cardiologist with our Clintelligence multi-agent AI pipeline to deliver an independent review in 24 hours, starting at $500.

What is the best treatment for maze procedure (cox-maze)?

The optimal treatment for maze procedure (cox-maze) depends on anatomy, comorbidities, age, and personal goals. Concomitant Maze during planned cardiac surgery. A Heart Team review evaluates every viable option — including transcatheter approaches, repair vs replacement, and surgeon/center matching — rather than defaulting to a single recommendation.

Clinical References
  1. Joglar JA, Chung MK, Armbruster AL, et al. 2023 ACC/AHA/ACCP/HRS Guideline for the Diagnosis and Management of Atrial Fibrillation. Circulation. 2024;149(1):e1-e156.
  2. Damiano RJ Jr, Schwartz FH, Bailey MS, et al. The Cox maze IV procedure: predictors of late recurrence. J Thorac Cardiovasc Surg. 2011;141(1):113-121.
  3. O'Brien SM, Feng L, He X, et al. The Society of Thoracic Surgeons 2018 Adult Cardiac Surgery Risk Models. Ann Thorac Surg. 2018;105(5):1411-1418.
  4. Nashef SAM, Roques F, Sharples LD, et al. EuroSCORE II. Eur J Cardiothorac Surg. 2012;41(4):734-745.

Reading on maze procedure (cox-maze)

See all articles →
Treatment Options
Catheter Ablation for AFib: What Patients Need to Know Before Saying Yes

Catheter ablation for AFib has become one of the most commonly recommended procedures for atrial fibrillation, but not every patient is an ideal candidate. A structural and interventional cardiologist explains the evidence, the realistic outcomes, and the questions you should be asking.

Sandeep M. Patel, MD · May 4, 2026
Risk Assessment
EuroSCORE II Explained: What This European Cardiac Surgery Risk Score Means for Your Heart Surgery Decision

EuroSCORE II is one of the most widely used risk calculators in cardiac surgery worldwide. Learn what the European cardiac surgery risk score actually measures, how it compares to the STS risk model, and why understanding your score matters before you consent to an operation.

Serrie Lico, MD · May 24, 2026
Diagnostics
Cardiac Stress Test Results: What Your Exercise Echo or Nuclear Stress Test Actually Means

A world-class imaging cardiologist explains how to read and understand your cardiac stress test results — whether you had an exercise stress echo, nuclear stress test, or pharmacologic study. Learn what abnormal findings really mean for your heart and what comes next.

Kunal U. Gurav, MD · May 23, 2026
Risk Assessment
EuroSCORE II Explained: What This European Cardiac Surgery Risk Score Means for Your Heart Surgery Decision

EuroSCORE II is one of the most widely used cardiac surgery risk calculators in the world. As a cardiovascular surgeon, I explain what this European risk score measures, how it compares to the STS risk model, and what patients need to understand before surgery.

Rahul R. Handa, MD · May 22, 2026

Related conditions.

Surgical Treatment of Atrial Fibrillation
Ross Procedure
Bicuspid Aortic Valve
Aortic Root Replacement
Septal Myectomy

Get an expert opinion on your maze procedure (cox-maze).

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