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PubMed This is a summary of 18 peer-reviewed journal articles Updated
Cardiology · Left Ventricular Aneurysm

Surgical Options: When is a Procedure Necessary?

At a Glance

Heart aneurysm surgery is not automatically needed: a pseudoaneurysm may require urgent specialist assessment, while a true aneurysm is usually repaired only for severe symptoms, dangerous rhythms, persistent clots, or other problems despite treatment.

Deciding whether to have surgery for a left ventricular aneurysm is a complex process. For many years, it was common to surgically “reshape” the heart after a heart attack. However, major clinical trials have changed how doctors think about these procedures.

Today, the decision to operate depends entirely on the type of aneurysm you have and whether it is causing symptoms that medications cannot control [1][2].

Pseudoaneurysm: A Surgical Emergency

As discussed in earlier chapters, a pseudoaneurysm (or “false” aneurysm) is not a true wall of the heart, but a contained rupture [3]. Because it is held together only by the heart’s outer lining, it is at high risk of bursting.

  • The Risk: While some estimates suggest a high risk of rupture, this varies heavily with etiology, chronicity, and anatomy [3][4].
  • The Plan: A suspected pseudoaneurysm requires urgent multidisciplinary evaluation. In many cases, doctors will recommend surgery, but some lesions may be managed with close specialist follow-up or selected percutaneous treatments based on operative risk [3][5].

True Aneurysm: When is Surgery Needed?

A true aneurysm is made of tough scar tissue and rarely ruptures. Therefore, surgery is almost never an emergency. Instead, it is considered only when the aneurysm causes specific, severe problems that don’t respond to other treatments [6][7]:

  • Refractory Heart Failure: If the bulge is so large that the rest of the heart cannot pump blood effectively, causing severe shortness of breath [8].
  • Dangerous Arrhythmias: If the scar tissue is triggering life-threatening fast heartbeats (Ventricular Tachycardia) that cannot be stopped with an ICD or ablation [9].
  • Severe Angina: Chest pain that persists despite medications or bypass surgery [6].
  • Blood Clots: If you have persistent blood clots (thrombus) that keep forming despite blood thinners [6].

Lessons from the STICH Trial

One of the most important studies in heart surgery, the STICH trial, evaluated adding a “reshaping” surgery (SVR) to CABG in a selected population with ischemic cardiomyopathy and severe LV dysfunction [1].

  • The Findings: The study found that while SVR made the heart look smaller and “better” on an ultrasound, it did not help patients live longer or stay out of the hospital any better than bypass surgery alone [1][10].
  • The Conclusion: Routine reconstruction is not universally supported by this data, but surgery can still improve symptoms, prevent embolization, or address severe refractory VT in selected patients [2][11].

Common Surgical Techniques

If your surgeon decides that a repair is necessary, they will use one of several techniques to remove the “dead” area and restore a more natural shape to the heart.

  1. Linear Closure: The surgeon removes the scarred area and sews the healthy edges of the heart muscle back together in a straight line [9][12].
  2. Patch-Plasty (The Dor Procedure): Instead of sewing the edges together directly, the surgeon places a patch inside the heart to create a new, circular wall. This often preserves the heart’s shape better than a linear closure [13][14].
  3. Aneurysmectomy: This is the general term for surgically removing the aneurysm [12].

While the “patch” method often shows a slightly better improvement in pumping strength (Ejection Fraction) on follow-up tests, both methods have similar long-term survival rates [15][16]. Your surgeon will choose the method that best fits the unique anatomy of your heart [13].

Surgical Risk: Heart surgery for an aneurysm is a major procedure. The risk of complications is higher if the patient is older, has kidney issues, or has a very low Ejection Fraction before the surgery [17][18]. Always discuss the specific risks and benefits for your situation with a specialized surgical team.

Common questions in this guide

Does every left ventricular aneurysm need surgery?
No. A true aneurysm does not usually require emergency surgery unless it causes severe heart failure, persistent angina, dangerous ventricular tachycardia, or recurrent blood clots despite treatment. A pseudoaneurysm is a contained rupture and needs urgent specialist evaluation because it may burst.
What makes a pseudoaneurysm different from a true heart aneurysm?
A true aneurysm is an outpouching made of tough scar tissue and usually has a low risk of rupture. A pseudoaneurysm is a contained tear in the heart wall held by the outer lining, so its rupture risk can be much more serious. Imaging and specialist review are needed to identify which type is present.
What does the STICH trial mean for aneurysm repair?
In selected patients with heart muscle weakness from reduced blood flow and severe loss of left-ventricle pumping function, adding heart-reshaping surgery to bypass surgery made the chamber look smaller but did not improve survival or reduce hospital stays compared with bypass alone. This means routine reshaping is not appropriate for everyone, although repair may still help selected patients with severe symptoms, a risk of clots traveling, or hard-to-control dangerous rhythms.
Which operations are used to repair a left ventricular aneurysm?
Options include linear closure, in which the scarred area is removed and the healthy edges are sewn together; patch-plasty, also called the Dor procedure, which uses a patch to rebuild the chamber; and aneurysmectomy, the general term for removing the aneurysm. The best approach depends on heart anatomy; patch-plasty may improve the ejection fraction, a measure of pumping strength, slightly more, but long-term survival is similar.
What raises the risk of complications from heart aneurysm surgery?
Heart aneurysm surgery is a major operation. Complication risk is higher in older adults, people with kidney problems, and people whose heart has a very low ejection fraction before surgery. The surgical team should estimate your individual risk based on your health, heart function, and any other procedures planned.
What problems can make surgery more likely for a true aneurysm?
Doctors may consider repair when a true aneurysm causes severe heart failure with shortness of breath, chest pain that continues despite treatment, dangerous ventricular tachycardia that persists despite an ICD or ablation, or blood clots that keep forming despite blood thinners. The goal may be to improve symptoms, reduce rhythm or clot-related risk, or address a problem that medicines cannot control.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Is this a pseudoaneurysm that requires urgent surgery, or a true aneurysm where we can take more time to decide?
  2. 2.If you are recommending surgery for my true aneurysm, is it to treat heart failure, arrhythmias, or something else?
  3. 3.Based on the STICH trial results, how do we know that adding an aneurysm repair to my bypass surgery will actually help me feel better?
  4. 4.Will you be using a 'linear closure' or a 'patch-plasty' (the Dor procedure), and why is that the right choice for the shape of my heart?
  5. 5.How much of my heart muscle is permanent scar versus 'viable' tissue that might recover after surgery?

Questions For You

Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.

References

References (18)
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    Results of surgical ventricular reconstruction in a specialized center and in comparison to the STICH trial: Rationale and study protocol for a patient-level pooled analysis.

    Gaudino M, Castelvecchio S, Rahouma M, et al.

    Journal of cardiac surgery 2021; (36(2)):689-692 doi:10.1111/jocs.15315.

    PMID: 33438823
  2. 2

    Regional left ventricular function does not predict survival in ischaemic cardiomyopathy after cardiac surgery.

    Prior DL, Stevens SR, Holly TA, et al.

    Heart (British Cardiac Society) 2017; (103(17)):1359-1367 doi:10.1136/heartjnl-2016-310693.

    PMID: 28446548
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    Large Left Ventricular Pseudoaneurysm Presenting as an Embolic Stroke After a "Silent" Myocardial Infarction.

    Incognito C, Parker J, Arustamyan M, et al.

    Texas Heart Institute journal 2023; (50(2)) doi:10.14503/THIJ-22-7922.

    PMID: 36988947
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    Left ventricular pseudoaneurysm: the niche of post-infarction mechanical complications.

    Torchio F, Garatti A, Ronco D, et al.

    Annals of cardiothoracic surgery 2022; (11(3)):290-298 doi:10.21037/acs-2022-ami-25.

    PMID: 35733717
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    Left Ventricular Pseudoaneurysm Complicated With Very Late Rupture 5 Years After Myocardial Infarction.

    Al Saidi K, Malik SA, Albulushi A, et al.

    JACC. Case reports 2019; (1(4)):569-572 doi:10.1016/j.jaccas.2019.08.019.

    PMID: 34316880
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    A Novel Modified Off-Pump Linear Closure Technique of Left Ventricular Aneurysm - A Case Report.

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    Brazilian journal of cardiovascular surgery 2025; (40(6)) doi:10.21470/1678-9741-2024-0342.

    PMID: 41042079
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    Surgical treatment of left ventricular aneurysm in patients with prior myocardial infarction in the absence of obstructive coronary artery disease (MINOCA): a cohort study.

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    Journal of cardiothoracic surgery 2023; (18(1)):304 doi:10.1186/s13019-023-02385-0.

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    Postmyocardial Infarction Ventricular Aneurysm: JACC Focus Seminar 5/5.

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    Journal of the American College of Cardiology 2024; (83(19)):1917-1935 doi:10.1016/j.jacc.2024.02.044.

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    [Clinical analysis of surgical treatment of post-infarction left ventricular aneurysm: a series of 254 patients].

    Jiang YS, Chen X, Xu M, et al.

    Zhonghua wai ke za zhi [Chinese journal of surgery] 2020; (58(5)):369-374 doi:10.3760/cma.j.cn112139-20200203-00060.

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    Impact of surgical ventricular reconstruction on sphericity index in patients with ischaemic cardiomyopathy: follow-up from the STICH trial.

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    European journal of heart failure 2015; (17(4)):453-63 doi:10.1002/ejhf.256.

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    [Surgical ventricular restoration versus isolated coronary artery bypass grafting for left ventricular aneurysm: comparison of mid- to long-term outcomes].

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    Application of Circular Patch Plasty (Dor Procedure) or Linear Repair Techniques in the Treatment of Left Ventricular Aneurysms.

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    Surgical Decision Making for Left Ventricular Aneurysmectomy.

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    Restoring Ventricular Geometry: Left Ventricular Reconstruction in a Patient with a Giant Left Ventricular Aneurysm and End-Stage Heart Failure.

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This page explains when surgery may be considered for a heart aneurysm for educational purposes only and is not medical advice. A cardiologist and cardiac surgeon should assess your aneurysm, symptoms, and surgical risk.

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