Vacuum Bell Therapy for Pectus Excavatum: How It Works, Results and What to Expect

Vacuum bell therapy for pectus excavatum uses controlled suction to temporarily lift the sunken breastbone and may gradually improve chest shape in carefully selected people. Results vary, and treatment is most likely to help people with mild, flexible deformities who can use the device consistently under specialist guidance.

Overview: what is vacuum bell therapy for pectus excavatum?

Vacuum bell therapy for pectus excavatum is a non-surgical approach that uses a soft, dome-shaped device to create gentle suction over the chest indentation. The negative pressure lifts the breastbone (sternum) and nearby ribs outward while the device is in place. With regular, supervised use, some people may achieve a more lasting improvement in the depth and appearance of a mild, flexible sunken chest.

Pectus excavatum is a chest-wall difference in which the breastbone and ribs grow inward. Its effects range from mainly cosmetic concerns to symptoms such as reduced exercise tolerance, chest discomfort, palpitations or breathlessness in more significant cases. A vacuum bell does not suit every person and should not be viewed as a replacement for a full chest-wall assessment.

The device is generally prescribed and monitored by a chest-wall specialist, often within pediatric surgery or thoracic surgery. The initial consultation helps determine whether non-surgical treatment is reasonable and whether other options, including assessment and treatment for pectus excavatum, should be discussed.

How does a vacuum bell work?

A vacuum bell has a flexible rim that seals against the skin of the chest. A hand pump removes a small amount of air from beneath the device, creating negative pressure. This suction draws the soft tissues, ribs and sternum forward. The chest may look flatter immediately while the bell is worn, but that early lift is usually temporary.

Over time, repeated lifting may encourage remodeling of the flexible chest wall. The degree of remodeling depends on factors such as age, chest-wall flexibility, the depth and shape of the indentation, posture, growth, and regular use of the device. The pressure must be individually adjusted so that treatment is effective without causing excessive pain or skin injury.

Specialists may document baseline photographs, chest measurements and, when needed, imaging or heart and lung testing. These records allow changes to be assessed over time rather than relying only on day-to-day visual impressions.

Who may be a candidate for vacuum bell treatment?

Vacuum bell therapy may be considered for people with mild or moderate pectus excavatum whose chest wall remains flexible. Children and adolescents may have greater chest-wall flexibility because they are still growing, although selected adults can also benefit. Motivation and the ability to follow a long-term routine are important parts of candidacy.

It may be less suitable when the deformity is severe, asymmetric or rigid, or when it is associated with substantial compression of the heart or lungs. People with significant symptoms should have careful specialist evaluation rather than relying on a device alone. In these circumstances, surgical treatment for pectus excavatum may be discussed as an alternative.

A clinician will also ask about bleeding disorders, medicines that affect clotting, fragile skin, previous chest surgery, heart conditions and connective-tissue disorders. The decision is individualized. A vacuum bell should be supplied, fitted and used according to a qualified clinician’s instructions, rather than purchased and self-directed without assessment.

What happens during vacuum bell therapy?

At the fitting visit, the specialist chooses a bell size and shape that can seal comfortably over the deepest area of the indentation. The skin is checked, the device is positioned, and suction is increased gradually. The person is taught how to place and remove the bell safely, recognize excessive pressure and care for the skin.

At home, the bell is generally worn for planned sessions, with the schedule gradually increased only if it is comfortable and the skin tolerates treatment. Exact duration and frequency vary by age, device, chest shape and specialist protocol. It is important not to increase suction or extend use beyond the prescribed plan in an effort to speed up results.

Follow-up appointments allow the team to review comfort, adherence, skin effects and objective improvement. They may adjust the device or schedule and discuss posture, breathing exercises and appropriate physical activity. Physiotherapy can sometimes support chest mobility, posture and overall conditioning, but it does not replace the mechanical effect of the vacuum bell.

Does vacuum bell actually work for pectus?

Vacuum bell therapy can work for some people with pectus excavatum, particularly when the indentation is mild and the chest wall is flexible. Studies and clinical experience show that the sternum can be lifted during treatment, and some patients develop a sustained reduction in indentation after consistent use over time. However, outcomes are variable, and high-quality long-term evidence remains limited compared with evidence for established surgical approaches.

It is most accurate to think of the vacuum bell as a carefully monitored conservative option, not a guaranteed correction. Some people see a meaningful cosmetic improvement, while others have little lasting change or find the routine difficult to maintain. Improvement may also be less predictable after growth is complete or in more rigid chest walls.

A specialist can explain whether the expected benefit is likely to justify the time and commitment involved. If a person has exertional symptoms or concerns about heart and lung effects, testing may be needed to ensure that treatment decisions address the full clinical picture.

How long does it take for a vacuum bell to work for mild pectus?

For mild pectus excavatum, the chest often appears raised immediately while the vacuum bell is in place. A temporary lift may remain for a short period after removal, especially early in treatment. More durable changes usually develop gradually over months, not days or weeks.

Many people need regular use for a prolonged period, often a year or longer, before the final degree of improvement can be judged. The timeline differs widely because chest-wall flexibility, age, device fit, treatment consistency and the original shape of the deformity all matter. During growth, clinicians may recommend continued monitoring because the chest can change over time.

Rather than focusing on a fixed deadline, follow-up measurements and photographs can help show whether progress is occurring. If there is no meaningful improvement after an appropriate supervised trial, the specialist may reconsider the plan and discuss other management options.

What are the typical results of vacuum bell therapy?

Typical results range from a temporary elevation only while the device is worn to a visible, longer-lasting reduction in the depth of the chest indentation. The most favorable results tend to occur in people with a shallower, symmetric and flexible deformity who use the bell regularly. Some people also report greater comfort with body image, although emotional wellbeing should be addressed individually and sensitively.

The treatment may not fully flatten the chest, and it does not necessarily correct rib flaring, asymmetry or posture-related features. Its effect on exercise symptoms and cardiopulmonary function is less certain, particularly if symptoms are caused by a more substantial chest-wall deformity. A clinician should investigate persistent breathlessness, chest pain or reduced stamina rather than assuming the vacuum bell will resolve them.

For people who need a more definitive structural correction, surgery remains an important option. Chest-wall teams can help compare observation, vacuum bell treatment and surgical care according to the person’s anatomy, symptoms, goals and stage of growth.

Is a vacuum bell painful? Risks, self-care and when to seek medical care

A vacuum bell should cause a pulling or pressure sensation, but it should not cause severe pain. Mild temporary redness, small pinpoint skin spots, bruising, tenderness or numbness can occur, especially while learning the correct pressure. These effects should be reported at follow-up if they persist, recur often or worsen.

To reduce irritation, the device should be used only on clean, intact skin and exactly as prescribed. The person should stop the session if there is sharp pain, marked discomfort, blistering, bleeding, dizziness or unusual symptoms. They should not use the bell over an active rash, wound or skin infection unless a clinician has advised otherwise.

Medical care should be sought promptly for severe chest pain, fainting, significant shortness of breath, a fast or irregular heartbeat, or signs of a serious allergic or skin reaction. A non-urgent appointment is appropriate for a new or worsening chest indentation, exercise limitation, persistent chest discomfort, or concerns that a child’s chest shape is changing during growth.

Acibadem International’s multidisciplinary specialists in JCI-accredited hospitals assess chest-wall conditions and discuss suitable non-surgical and surgical options for international patients. A specialist review can help ensure that vacuum bell therapy is used safely and with realistic expectations.

Frequently asked questions

Can adults use a vacuum bell for pectus excavatum?

Selected adults may use vacuum bell therapy, particularly when the chest wall still has some flexibility and the deformity is mild. Results are often less predictable than in younger patients because the chest wall may be more rigid. A chest-wall specialist can assess whether a supervised trial is appropriate.

Can a vacuum bell replace pectus excavatum surgery?

For some people with mild, flexible pectus excavatum, a vacuum bell may be a reasonable non-surgical option. It is not a replacement for surgery in every case, especially when the deformity is severe, rigid, symptomatic or affecting heart and lung function. The best approach depends on individual anatomy, symptoms and treatment goals.

How often should a vacuum bell be used?

The schedule should be set by the prescribing specialist and often builds up gradually as the skin and chest adapt. Frequency and session length vary according to the person's age, chest shape, device and comfort. Increasing use or suction without medical guidance can increase the risk of pain and skin injury.

Can vacuum bell therapy make pectus excavatum worse?

When correctly fitted and supervised, vacuum bell therapy is intended to lift rather than worsen the indentation. However, incorrect use can cause skin bruising, pain or irritation, and it may delay evaluation if significant symptoms are ignored. Regular follow-up helps identify whether the treatment is helping.

Is exercise helpful during vacuum bell treatment?

Regular age-appropriate exercise can support general fitness, posture and chest mobility, but it does not directly replace the effect of vacuum bell therapy. A clinician or physiotherapist may recommend exercises based on the person's symptoms and physical condition. New chest pain, dizziness or unusual breathlessness during exercise should be medically assessed.

What tests are needed before vacuum bell therapy?

Some people need only a detailed history and physical examination, while others may need chest measurements, photographs or imaging. If there are symptoms or a more pronounced deformity, the specialist may recommend heart or lung testing. Testing is chosen to understand severity and guide the safest treatment plan.

References

• American Pediatric Surgical Association
• Chest Wall International Group
• Mayo Clinic
• National Institutes of Health

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.