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Pectus excavatum · pectus carinatum · Nuss procedure · London

You were told to live with it. You don’t have to.

A sunken or protruding chest is the most common chest wall difference there is — and the most commonly dismissed. “It’s only cosmetic” was never the whole truth: pectus can press on the heart, limit exercise, and carry a psychological weight that is a valid reason to treat in itself. Correction is routine now — keyhole surgery, bracing or vacuum bell therapy — for teenagers and for the adults who were told, decades ago, that nothing could be done.

Page last updated 21 August 2026

1 in 300births affected by pectus excavatum
KeyholeNuss correction through two small incisions
All agesteenagers and adults treated
20+ yrsconsultant chest wall experience
The part nobody tells you

“It’s only cosmetic” was never the whole truth.

1 in 300 births are affected by pectus excavatum — the most common chest wall deformity. Most were told nothing could, or should, be done about it.

In a deep pectus excavatum, the breastbone does not just dip — it pushes backwards into the space where the heart sits, displacing and compressing it. Many people who spent their whole lives believing they were simply “unfit” — always the first to tire, never able to keep up — were in fact exercising with a heart that could not fill properly. That is not a cosmetic problem.

And where the physiology is genuinely mild, the psychological weight is not: avoiding swimming, beaches, changing rooms and relationships is a real burden with a real treatment. Modern practice recognises both as legitimate reasons to act — and recognises that choosing not to act, with full information, is legitimate too.

“The saddest consultations are with adults in their forties who were told at fourteen that nothing could be done — and believed it for thirty years. Both halves were wrong then and are wrong now: it could have been treated, and it still can be.”

Mr Marco Scarci, Consultant Thoracic Surgeon

What you were told — and what is actually true

Most of the standard advice about pectus is a generation out of date:

“It’s purely cosmetic”Deep defects displace and compress the heart and reduce exercise capacity
Outdated
“They’ll grow out of it”Pectus typically deepens through the adolescent growth spurt, not the reverse
Outdated
“Surgery means a huge open operation”The Nuss procedure is keyhole — two small incisions at the sides of the chest
Outdated
“It’s too late as an adult”Adults are assessed and corrected routinely — the window never fully closes
Outdated
“Being bothered by it is vanity”The psychological burden is a recognised indication for treatment in its own right
Outdated
A structured pectus assessmentMeasures the defect, checks the heart and lungs, and lays out every option honestly
The first step
Two directions, one specialty

Pectus excavatum and pectus carinatum

The same growth disturbance of the rib cartilages can push the breastbone inwards or outwards. The assessment is similar; the treatments differ.

Sunken · the most common

Pectus excavatum

“Funnel chest” — the breastbone dips inwards

Looks like: a central hollow in the chest, from a shallow dish to a deep crater; often asymmetric, often deeper on the right.

Feels like: breathlessness and early fatigue on exertion, palpitations, occasional chest ache — or nothing physical at all.

The pattern: present from childhood, typically deepening sharply through the adolescent growth spurt.

Inside the chest: in deeper defects the sternum pushes the heart to the left and compresses it — the reason “I’ve just never been sporty” is so often the presenting complaint.

Protruding · often asymmetric

Pectus carinatum

“Pigeon chest” — the breastbone pushes outwards

Looks like: a forward prominence of the breastbone or the cartilage to one side of it; frequently more pronounced on one side.

Feels like: usually no internal compression — but chest wall rigidity, tenderness at the prominence, and self-consciousness are common.

The pattern: often appears or accelerates in early adolescence, sometimes over a single year of growth.

The good news: in adolescents whose chest is still flexible, carinatum frequently responds to bracing alone — a properly fitted brace, worn consistently, can avoid surgery altogether.

The structured pectus assessment

Severity is measured, not eyeballed.

“How bad is it?” deserves a better answer than an opinion formed across a consulting room. A proper pectus assessment turns the question into numbers and images — and turns the decision into an informed one.

Clinical assessment of the chest wall

The shape, depth, symmetry and flexibility of the defect; posture and spine; how the appearance changes with breathing. Standardised photographs document the starting point.

Physical exam

Cross-sectional imaging & the Haller index

A low-dose CT (or MRI) measures the ratio between the width of the chest and the distance from breastbone to spine — the Haller index — which grades severity objectively and shows exactly what the sternum is doing to the heart.

Imaging

Heart and lung function where indicated

An echocardiogram assesses cardiac compression and function; lung function testing quantifies any restriction. Together they answer the question that matters: is this affecting your physiology, or only your silhouette?

Cardiopulmonary

Every option on the table — including none. The output of the assessment is an honest conversation: what the numbers show, what each treatment would realistically achieve, and what watchful waiting looks like. Choosing not to treat, with full information, is a respected outcome of this clinic — not a failure.

Does any of this sound familiar?

  • Always the first to tire in sport — labelled “unfit” despite training
  • Breathless or heart racing on exertion, with normal routine tests
  • A dip or prominence that deepened noticeably in the teenage years
  • Avoiding swimming, beaches, changing rooms — planning life around a shirt
  • A teenager who has stopped doing sport, or started hiding their chest
  • Told years ago that nothing could be done — and never reassessed since
Book a pectus assessment

Teenagers and adults · no GP referral needed · remote consultations available

Matched to the defect, the age and the goal

Four established treatments — from a vacuum bell to keyhole correction

There is no single right answer in pectus. The right treatment depends on which way the chest deviates, how flexible it still is, and what you want to achieve.

Vacuum bell therapy

A silicone suction device worn on the chest lifts the sternum forward, gradually remodelling a flexible defect. Best suited to younger patients with milder, symmetric excavatum — and to anyone wanting to try a non-surgical route first. Requires consistent daily use over months to years; progress is reviewed and photographed at intervals so the decision to continue is always evidence-based.

Non-surgical · excavatum

Compression bracing

A custom-fitted brace applies steady pressure to the prominence, reshaping the still-flexible adolescent chest over months of consistent wear. In compliant teenagers the results can be excellent — frequently avoiding surgery altogether. The honest caveat: the brace only works when it is worn, and the fitting, pressure and wear schedule are adjusted at review to keep progress on track.

Non-surgical · carinatum

The Nuss procedure

The modern standard for significant excavatum: through two small incisions at the sides of the chest, a curved metal bar is passed behind the sternum under camera guidance and rotated to lift the chest into its corrected shape — no cartilage is removed, and there is no incision on the front of the chest. The bar stays in place, unnoticed, for two to three years while the chest sets in its new form, then is removed as a short procedure. Modern pain control, including intercostal nerve cryoablation at the time of surgery, has transformed the early recovery.

Keyhole · excavatum

Modified Ravitch procedure

For markedly asymmetric, rigid, mixed or recurrent deformities — and for some adults — the open approach reshapes the deformed cartilages directly and repositions the sternum, sometimes with a supporting bar. A bigger operation than the Nuss, chosen when the anatomy demands it: the goal is the right operation for the specific chest, not one technique applied to everyone.

Open surgery · complex cases
13–18the flexible years — but not the only years

Timing matters — but “too late” is a myth

The adolescent chest is at its most mouldable: bracing and vacuum bell therapy do their best work in these years, and surgical correction is at its most straightforward. That makes the growth spurt the right time to be assessed — not necessarily treated. And for adults: the chest stiffens, the options narrow slightly, but correction remains routine at 25, 35 and beyond. The window never fully closes.

Patient outcomes

Families and adults who stopped living with it

★★★★★

“Our son stopped swimming at thirteen and we didn’t understand why until he finally showed us how deep his chest had become. Mr Scarci took the worry seriously without ever making it feel like a catastrophe — the scan explained everything, the Nuss operation went exactly as described, and a year on he is back in the pool with his friends. The change in his confidence is bigger than the change in his chest.”

Parents of a Nuss procedure patient, 15 · verified review
★★★★★

“I was told at fourteen it was cosmetic and to get on with life. At thirty-four I finally had it assessed properly — my heart was being compressed the whole time. Mr Scarci corrected it with the keyhole bar operation and I genuinely did not know breathing could feel like this. Thirty years of thinking I was just unfit.”

Adult pectus excavatum, Nuss correction · verified review
★★★★★

“Our daughter’s chest started protruding on one side at twelve and her school life fell apart with it. Mr Scarci fitted a brace, explained honestly that it would only work if she wore it, and reviewed her every few months. Two years of commitment later the prominence has all but gone — no operation needed. He was straight with her at every step and she trusted him completely.”

Parents of a pectus carinatum bracing patient · verified review

Read 135+ verified reviews

Mr Marco Scarci, consultant thoracic surgeon
Your surgeon

Mr Marco Scarci

MD(Hons) · FRCS(Eng) · FCCP · FACS · FEBTS · Consultant Thoracic Surgeon, Imperial College Healthcare NHS Trust

Chest wall deformity work rewards two things above all: honest selection and meticulous technique. Mr Scarci has spent over two decades on both — assessing pectus in teenagers and adults, steering the right patients towards bracing and vacuum bell therapy rather than theatre, and performing Nuss and modified Ravitch corrections where surgery is genuinely the answer.

Every assessment, operation and follow-up is carried out by Mr Scarci personally. Families deal with the same surgeon from the first conversation to the final review — including, for Nuss patients, the bar removal years later.

20+years as a consultant thoracic surgeon
5,000+minimally invasive thoracic procedures
170+peer-reviewed publications
Read the full biography
Book a consultation

Five London clinic locations — teenagers and adults welcome

No GP referral required. Existing scans and photographs are reviewed before you arrive; remote video consultations are available for families travelling from further afield.

Not in London? Remote video consultations are available for families and adults travelling from further afield — existing scans and photographs are reviewed before you arrive.

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Common questions

What patients and parents ask before their appointment

Is pectus dangerous? Does it actually need treating?

Pectus is very rarely dangerous — but “not dangerous” and “not worth treating” are different things. Deeper excavatum defects displace and compress the heart, which shows up as breathlessness, early fatigue and reduced exercise capacity; correcting them improves physiology, not just appearance. Milder defects may affect nothing but confidence — and the psychological burden is a recognised indication for treatment in its own right. Whether your pectus needs treating is exactly what the structured assessment answers: the measurements, the heart and lung findings, and your own goals decide it together. Doing nothing, chosen with full information, is a perfectly respectable outcome.

What does the Nuss procedure actually involve — and what about scars?

The Nuss procedure is keyhole surgery. Through two small incisions on the sides of the chest, a curved metal bar is passed behind the sternum under direct camera vision and rotated so that it lifts the chest into its corrected position immediately — no cartilage is cut away and there is no incision on the front of the chest. The bar remains in place for two to three years, unnoticed under the muscle, while the chest sets in its new shape; it is then removed through the same small incisions as a short procedure. The visible legacy is a scar tucked along each side of the chest, not a mark down the middle.

What is the right age — and is it too late for me as an adult?

The ideal window for assessment is the adolescent growth spurt, roughly 13–18, when the chest is at its most flexible: bracing and vacuum bell therapy work best, and surgical correction is at its most straightforward. That is the right time to be assessed, which is not the same as being treated — many teenagers are simply monitored. For adults, the honest answer is that the chest stiffens with age and recovery is somewhat slower, but correction remains routine well into the thirties, forties and beyond. “Too late” is the single most common myth this clinic corrects. If you were told decades ago that nothing could be done, that advice is worth re-examining against modern practice.

Do the vacuum bell and bracing genuinely work, or are they a gimmick?

They genuinely work — in the right chest, used properly. Compression bracing for carinatum in a flexible adolescent chest has an excellent track record and frequently avoids surgery altogether; the vacuum bell can visibly improve milder, symmetric excavatum over months of consistent use. The two honest caveats: results depend heavily on compliance — a brace in a drawer corrects nothing — and neither device matches what surgery achieves in deep or rigid defects. In this clinic both are offered with structured reviews and photographs, so you always know whether the approach is working or whether it is time to discuss something else.

How painful is the Nuss operation, and how long is recovery?

This is the right question — the Nuss bar works by holding the chest in a new shape, and historically the early weeks were the hard part. Modern pain management has changed that substantially: intercostal nerve cryoablation performed during the operation numbs the chest wall for the critical healing period and markedly reduces the need for strong painkillers. Most patients spend a few days in hospital, are back to school or desk work within two to three weeks, and return to most sport by around three months, with contact sports discussed individually while the bar is in place. Discomfort is real in the early weeks — but it is managed, temporary, and consistently described by patients as more bearable than they feared.

Will private medical insurance cover pectus treatment?

It depends on what the assessment shows, and it deserves a straight answer: insurers generally fund pectus treatment where there is documented physiological impact — cardiac compression, reduced lung function, exertional symptoms — and generally decline it where the indication is appearance alone, which most policies class as cosmetic. This is exactly why the structured assessment matters: it produces the objective evidence — Haller index, echocardiogram, lung function — on which funding decisions turn. The practice handles pre-authorisation correspondence with your insurer, and for self-funded treatment provides a clear written quotation with 0% finance available before you commit to anything.

Stop being told to live with it.

One consultation measures the defect properly, checks what it is doing to the heart and lungs, and lays out every option honestly — surgical, non-surgical, or none at all. For teenagers, for adults, and for everyone who was told “nothing can be done”.