Whether pectus excavatum after cardiac surgery requires surgical correction remains controversial. Many cardiac surgeons and parents tend to decline surgery or take a conservative view, believing that the cardiac condition has already been treated and that pectus excavatum is merely a cosmetic issue that does not require urgent intervention.

In fact, pectus excavatum following cardiac surgery may be more harmful than typical pectus excavatum, and early evaluation along with appropriate treatment is generally recommended.

Risks of Leaving Pectus Excavatum Untreated

Pectus excavatum can be classified into two types based on etiology: primary pectus excavatum and secondary pectus excavatum. Primary pectus excavatum refers to a chest wall deformity without a clear underlying disease or external cause. Secondary pectus excavatum, on the other hand, is caused by surgery or trauma, with cardiac surgery being the most common secondary cause. It is typically associated with surgical techniques and postoperative healing processes.

Among patients undergoing cardiac surgery, two scenarios may be present: (1) pre-existing primary pectus excavatum before surgery, and (2) newly developed secondary pectus excavatum after surgery. These two conditions have different risk mechanisms and should be evaluated separately.

1. Cardiac Surgery Patients with Pre-existing Primary Pectus Excavatum

Some patients already have primary pectus excavatum prior to cardiac surgery. This deformity can limit surgical exposure and increase operative difficulty. During sternal closure, the depressed chest wall may directly compress the recovering heart, increasing perioperative cardiac workload and hindering recovery. In addition, chronic cardiopulmonary compression may affect exercise tolerance, spinal alignment, and psychological well-being.

2. Secondary Pectus Excavatum After Cardiac Surgery

For a detailed explanation of the underlying causes, see: Why Does Pectus Excavatum Occur After Cardiac Surgery?

After cardiac surgery, severe adhesions may develop within the mediastinum, particularly between the chest wall and the pericardium. If the cardiac surgery involves the removal of cardiac structures, the heart may directly adhere to the chest wall.

These adhesions differ significantly from those formed in secondary operations for pectus excavatum.

Because adhesions firmly fix the heart to the deepest point of the chest depression, a so-called “malignant pectus excavatum” may develop.

Malignant pectus excavatum can severely impair cardiac function and is considered highly dangerous. Therefore, secondary pectus excavatum following cardiac surgery should be treated with pectus excavatum surgery as early as possible.

Learn more about malignant pectus excavatum: What is malignant pectus excavatum?

Surgical Challenges of Secondary Surgery After Cardiac Surgery

Although pectus excavatum following cardiac surgery can cause significant harm and may require early intervention, its surgical correction is challenging. The difficulties mainly arise from two aspects: surgical risk and technical complexity.

1. Surgical Risk

In traditional minimally invasive surgery for pectus excavatum, the bars are inserted into the chest and passed across the thoracic cavity through a limited or partially blind operative field, then flipped to elevate the depressed chest wall. Even with thoracoscopic assistance, the surgical view is often limited.

After cardiac surgery, severe mediastinal adhesions often develop. In the setting of restricted visibility and intrathoracic adhesions, the bar may injure the heart during insertion or flipping, potentially causing massive, uncontrolled hemorrhage and a life-threatening emergency. This is the most serious risk of the procedure.

2. Technical Difficulty

Because adhesions greatly increase the difficulty and risk of the corrective procedure, they must be handled with great care. However, adhesiolysis is performed largely without direct visualization, making the procedure extremely difficult. In addition, the sternum, having undergone prior median sternotomy and healing, may exhibit structural alterations that further complicate chest wall remodeling.

Beyond risk and technical complexity, achieving optimal surgical outcomes is also challenging. Abnormalities of the sternum and chest wall anatomy, sometimes accompanied by irregular callus formation, require a higher level of surgical expertise to achieve satisfactory correction.

Therefore, pectus excavatum after cardiac surgery is not equivalent to typical pectus excavatum; it presents substantially greater challenges and must be approached with particular caution.

Surgical Treatment Options for Secondary Pectus Excavatum After Cardiac Surgery

Several surgical approaches can be considered for correcting this type of chest wall deformity. Many clinicians may routinely consider the standard Nuss procedure. However, pectus excavatum following cardiac surgery presents significant challenges, and conventional corrective techniques often fail to achieve satisfactory results. Specialized approaches, such as the Wung procedure and the Wang procedure, are therefore required for optimal correction.

Both the Wang procedure and the Wung procedure were developed by the Institute of Chest Wall Surgery (ICWS) and have demonstrated successful outcomes in a large number of clinical cases. If you or your family members are facing pectus excavatum after cardiac surgery, you are welcome to visit the official website for more information or contact the ICWS professional team.

The 13-year-old patient underwent cardiac surgery via a median sternotomy at age 3. Although the surgery was successful, anterior chest wall depression developed postoperatively and progressively worsened with age. Upper: Preoperative appearance. Lower: Postoperative appearance following the Wung procedure.

The child underwent surgery for congenital heart disease at 6 months old. A depression in the chest developed after surgery. The child also had frequent colds and had pneumonia several times. Upper: Before surgery. Lower: After the Wang procedure.

Postoperative Recovery After Pectus Excavatum Surgery

Patients and their families are often particularly concerned about the duration and progression of postoperative recovery. In general, recovery after pectus excavatum surgery can be divided into three stages:

1. Hospitalization Phase

Goals: Pain management, incision healing, and prevention of complications

Patients are typically encouraged to engage in light activity as tolerated.

2. Early Recovery Phase (from discharge to 3 months)

Goal: Restoration of physical strength and daily function

Activity levels are gradually increased, with emphasis on nutritional support to facilitate healing.

3. Late Recovery Phase (after 3 months)

Goal: Return to normal life and physical activity

At this stage, skeletal healing is generally well established. Patients may resume normal exercise and routine physical work; however, intensive bodybuilding or high-strain strength training is not recommended, as it may interfere with future bar removal.

4. Bar Removal Phase

The bar can typically be removed 2 to 3 years after surgery.

Most physical activities may be gradually resumed about 2 months after bar removal.

The Institute of Chest Wall Surgery (ICWS)

The treatment of pectus excavatum after cardiac surgery requires highly specialized expertise. ICWS focuses on the surgical management of chest wall deformities and is the world’s first independent institution dedicated to chest wall surgery, as well as the largest center for chest wall deformity correction globally. For any needs related to chest wall deformities, you are welcome to contact us at any time.