Pediatric Surgery

What our paediatric surgery (pediatric surgery) unit covers — and who it is for

Paediatric surgery (pediatric surgery) is the surgical care of people who are still growing, from a baby born this morning to a teenager. It is defined by its patients rather than by an organ, which is why one unit covers the chest, the abdomen, the urinary tract, the neck and the skin — a range no adult surgical specialty spans.

The reason the specialty exists at all is worth stating plainly, because parents are entitled to know it: the operations are frequently the same in name, and almost never the same in practice. A hernia repair in a two-week-old and a hernia repair in a forty-year-old share a word and very little else.

At Acıbadem International the work falls into five strands.

• Newborn and congenital surgery — conditions present at birth, many of them diagnosed before it, several of them urgent within hours.
• Everyday childhood surgery — hernias, hydroceles, undescended testes and appendicitis, which make up the great majority of operations by number.
• Lumps, cysts and vascular anomalies — the neck and skin lesions that look alarming to a parent and are usually benign.
• Paediatric urology — reflux, obstruction and the congenital anomalies of the kidney and urinary tract.
• Solid tumours of childhood — operated within a treatment plan set by a multidisciplinary team rather than by a surgeon alone.

Where the borders sit. Medical paediatrics — growth, feeding, infection, vaccination, the conditions that are not operated — belongs with paediatrics. Everything before birth, including the detailed scans that find most congenital anomalies, belongs with perinatology, and the pectus excavatum and pectus carinatum chest wall corrections belong with thoracic surgery, which covers them in full. Cardiac surgery in children, neurosurgery, orthopaedics and the ear, nose and throat operations — grommets, tonsils and adenoids — each belong with their own unit. Chemotherapy and radiotherapy for childhood tumours belong with medical oncology and radiation oncology, and skin lesion management with dermatology. What this unit owns is the operation and the decision to perform it.

Why children are not small adults, and what a pediatric surgeon does differently

This is the founding argument of the specialty and it is concrete rather than sentimental. A pediatric surgeon is a surgeon who operates only on growing bodies, and every item below is a reason that restriction exists.

Scale changes the operation, not just the instruments. A newborn’s bile duct is a few millimetres across and its ureter is finer than the suture used to repair an adult one. Anastomoses are made at a scale where the difference between an adequate and a leaking join is a fraction of a millimetre, which is a matter of technique and volume rather than of care.

Physiology has almost no reserve. A newborn’s total blood volume is measured in a few hundred millilitres, so blood loss that is trivial in an adult is significant here. Small bodies lose heat fast, and hypothermia during an operation worsens bleeding and recovery — which is why theatre temperature, warming devices and the length of the procedure are managed differently for a baby.

Growth is part of the plan. An adult repair has to last; a child’s repair has to last and then grow. A urinary reconstruction performed at two years old must still work at twenty, which changes what is done at the first operation rather than deferring the problem.

Anaesthesia is a separate discipline. Airway anatomy, drug handling and fluid requirements all differ, and the margin for error narrows with age and weight. Paediatric anaesthesia is covered by anaesthesiology and reanimation, and it is the single strongest reason to have a child operated where children are operated routinely.

The patient often cannot describe the problem. A pre-verbal child with abdominal pain gives no history, so the assessment leans harder on examination, imaging and serial review — and on parents, who are usually right that something is wrong even when they cannot say what.

Hernias and hydrocele in children

These are the commonest operations in the specialty and the ones most often misunderstood, because the childhood versions behave nothing like the adult ones.

Inguinal hernia in babies and children

A childhood inguinal hernia is not a weakness that developed. It is a passage that should have closed before birth and did not, so the repair is a closure of that passage rather than a reinforcement with mesh. This is why paediatric hernia repair does not use the mesh that adult repair relies on, and why the recurrence rate after a properly performed repair is low.

The important difference from adults is urgency. A childhood inguinal hernia is repaired once diagnosed rather than watched, because the risk of incarceration — bowel or, in girls, an ovary becoming trapped — is highest in the first months of life. That is a plain statement about how the condition is managed, not an alarm about any individual child.

Umbilical hernia in children

The opposite advice applies at the navel, and this is the single most useful thing a parent can be told about it. An umbilical hernia in children closes on its own in the great majority of cases, usually within the first few years, so the standard approach is observation rather than surgery. Repair is considered for hernias that remain beyond the usual window, for very large defects, and for the rare complication. Strapping a coin over it, taping and abdominal binders do nothing and are not recommended.

Hydrocele

A hydrocele is a collection of fluid around the testis, and in a baby it usually arises through the same unclosed passage that produces a hernia. That shared origin is what determines the treatment. A non-communicating hydrocele — where the passage has closed and the fluid is simply trapped — usually resolves without any operation during the first year or two. A communicating hydrocele, which changes size through the day and is larger in the evening, means the passage is still open, and it is repaired the way a hernia is.

Two points are worth stating because they cause avoidable worry. A hydrocele that has appeared suddenly, or one in an older child rather than an infant, is assessed rather than assumed, because a scrotal swelling has causes other than fluid. And draining a hydrocele with a needle is not the treatment: the fluid returns while the passage remains open.

Undescended testicle, orchidopexy and foreskin problems

Undescended testicle

An undescended testicle is one that has not reached the scrotum. It is common in babies born preterm and descends on its own in many infants during the first months. Beyond that window, spontaneous descent becomes unlikely, and this is the point where timing genuinely matters: the testis does not develop normally at body temperature, and both fertility and the later ability to examine it depend on it sitting where it can be examined.

The operation is orchidopexy — mobilising the testis and fixing it in the scrotum. Where the testis cannot be felt at all, laparoscopy is used first to find it, since it may be inside the abdomen, may be small and abnormal, or may not be present.

A retractile testis is a separate and much commoner situation: a normally descended testis that pulls up with cold or handling and can be brought down without tension. It needs following rather than operating, and distinguishing the two is the main purpose of the examination.

Foreskin problems: phimosis and circumcision

Almost every boy is born with a foreskin that does not retract, and that is normal rather than a condition. Separation happens over years, at very different ages, and forcible retraction causes scarring that creates the problem it was meant to prevent.

Phimosis as a diagnosis means a foreskin that will not retract because of scarring, usually with symptoms — ballooning, recurrent infection, or difficulty passing urine. Topical steroid treatment resolves a substantial share of cases without an operation and is generally tried first. Where surgery is needed, options include a preputioplasty that preserves the foreskin as well as circumcision.

Circumcision performed for religious or cultural reasons is a different matter from circumcision performed for disease, and the unit is explicit about which is which. Where it is performed, it is performed as an operation with the same anaesthetic standards, pain relief and sterile technique as any other — a plain statement of practice rather than a comment on the decision.

Pyloric stenosis and pyloromyotomy

Pyloric stenosis is the condition that most often brings a young baby to a paediatric surgeon, and it is worth understanding because the picture is distinctive and the treatment is definitive.

The pylorus is the muscular outlet of the stomach. In this condition it thickens over the first weeks of life until milk can no longer pass. The result is vomiting that is forceful rather than a posset — described as projectile because it travels — in a baby who, characteristically, is hungry again immediately afterwards. It typically begins between two and eight weeks of age, and it is more common in first-born boys and where a parent had it.

The diagnosis is made by ultrasound, which measures the muscle directly and has replaced both the test feed and the contrast study.

What makes this condition unusual is that the operation is not the urgent part. Persistent vomiting strips the body of chloride, potassium and acid, producing a metabolic disturbance that makes anaesthesia dangerous. So the sequence is fixed: fluids and electrolytes first, blood chemistry corrected, surgery afterwards. A baby taken to theatre before that correction is at avoidable risk, and any unit that operates on pyloric stenosis in the middle of the night as an emergency has misunderstood the disease.

The operation, pyloromyotomy, divides the thickened muscle without opening the stomach lining, and can be done through a small incision or laparoscopically. It is curative. The condition does not come back, there is no long-term dietary consequence, and feeding restarts within hours — some vomiting in the first day afterwards is expected and settles.

Intussusception and appendicitis in children

Intussusception

Intussusception is one segment of bowel telescoping into the next, most often in babies and toddlers. The classic description is intermittent severe pain in which the child draws the legs up and screams, then is limp or unusually quiet between episodes — and it is that quiet phase, rather than the crying, that most often gets missed. Vomiting follows, and a late sign is a stool containing blood and mucus.

Its treatment is the reason it is worth explaining. In most children this is not a surgical condition at all. An air or contrast enema, performed under imaging, pushes the telescoped bowel back and resolves it without an operation, and it succeeds in the majority of cases when the diagnosis is made early. Surgery is for the ones that do not reduce, for bowel that is already damaged, and for the older child in whom a lead point — a polyp, a Meckel’s diverticulum, occasionally a tumour — has caused it and needs dealing with.

Appendicitis in children

Appendicitis in children is the commonest emergency operation in the specialty, and it is harder to diagnose the younger the child. Small children present atypically, cannot localise pain, and progress to perforation faster than adults, so ultrasound is used early and serial examination over hours is a legitimate diagnostic tool rather than a delay.

Two things have changed. Laparoscopic appendicectomy is now standard for most children, with a shorter recovery and better wound outcomes. And for uncomplicated appendicitis, antibiotic treatment without surgery is an option in selected children, discussed with the family — with the trade-off stated honestly, since a proportion will need the operation later anyway. Complicated appendicitis with an abscess is sometimes better treated by drainage and antibiotics first, with surgery later or not at all.

Hirschsprung disease and anorectal malformation

Hirschsprung disease

Hirschsprung disease is the absence of nerve cells in the wall of the last part of the bowel. Without them that segment never relaxes, so it behaves as a functional obstruction even though nothing is blocking it — which is why the affected segment is the one that looks normal and the dilated bowel above it is the healthy part working too hard.

It usually presents in a newborn who does not pass meconium in the first day or two, with a distended abdomen and vomiting. It can present later in a child with severe lifelong constipation that never responded to ordinary treatment, and that is the presentation most often missed.

Diagnosis is by rectal biopsy, which looks for the missing nerve cells — the point at which this unit and pathology work directly together, since the diagnosis is a microscopic one. Treatment removes the affected segment and joins working bowel to the anus, in one stage in many children and in stages where the bowel is very dilated or the child is unwell.

The honest part concerns afterwards. Most children do well, but bowel function takes time to settle and some need a continence programme for years. Enterocolitis remains a risk after successful surgery, and families are taught to recognise it — which is information they need to have rather than a reason for alarm.

Anorectal malformation and imperforate anus

An anorectal malformation is a spectrum, from an anus in slightly the wrong place to no external opening at all with the bowel joining the urinary or genital tract internally. It is identified at the newborn examination, and the finding drives an immediate search for the associated anomalies that frequently accompany it — spine, kidneys, heart, oesophagus and limbs.

Management depends on the level. Low malformations may be corrected in one operation early. Higher ones are usually managed with a temporary stoma first, reconstruction later, and stoma closure after that. Long-term continence depends on the anatomy present at birth and on the quality of the reconstruction, and this is a condition where honest expectations set at the start matter more than reassurance.

Surgery in the first days of life

These conditions are grouped because they share a pattern: most are now found on antenatal scans by perinatology, which changes the situation entirely — delivery can be planned where the surgery is, and a team can be waiting rather than summoned.

Gastroschisis and omphalocele

Both involve abdominal contents outside the abdomen, and they are different conditions rather than variants. Gastroschisis is a defect beside the cord with unprotected bowel, usually with no other anomaly, and the bowel itself is the problem — it has been bathed in amniotic fluid and takes weeks to work normally afterwards. Omphalocele is a defect at the cord with the contents inside a membrane, and the associated anomalies, particularly cardiac and chromosomal, frequently matter more than the defect. The prenatal diagnosis and the pregnancy management belong with perinatology; the closure and the aftercare belong here.

Oesophageal atresia (esophageal atresia)

Oesophageal atresia — esophageal atresia — is an oesophagus that ends blindly instead of reaching the stomach, in most cases with a tracheoesophageal fistula connecting the lower part to the airway. It is suspected when a newborn cannot swallow saliva and a feeding tube will not pass. Repair joins the two ends and closes the fistula. Where the gap between the ends is long, the repair is staged over weeks while the ends grow. Reflux and swallowing difficulty are common afterwards and are followed rather than treated once.

Congenital diaphragmatic hernia

A congenital diaphragmatic hernia is a hole in the diaphragm through which abdominal organs move into the chest during development, so the real problem is not the hole but the lung that never had room to grow. That is why the operation is not the emergency: the baby is stabilised first, sometimes for days, and the hernia repaired when the lungs and circulation allow. Outcomes are determined largely by how much lung developed, which is why this is a condition where prenatal assessment genuinely changes what a family is told.

Necrotising enterocolitis

Necrotizing enterocolitis is inflammation and death of bowel tissue affecting mainly preterm babies. Most cases are treated medically — feeds stopped, antibiotics, decompression — and surgery is reserved for perforation or bowel that has died. When surgery is needed the aim is to remove as little bowel as possible, because the amount left determines whether the child can be fed normally later. Where too little remains, the result is short bowel syndrome: the remaining bowel cannot absorb enough, and the child depends on intravenous nutrition while it adapts over months or years. That is the reason a surgeon resects conservatively and returns for a second look rather than removing everything questionable at the first operation.

Sacrococcygeal teratoma

A sacrococcygeal teratoma is a tumour at the base of the spine, usually found before birth and usually benign at that stage. Two things determine what happens. A large one can strain the baby’s circulation before birth, which is why it is monitored by perinatology and why delivery is planned. And the operation removes the coccyx with the tumour, because leaving it behind is associated with recurrence — the same principle as the hyoid bone in a thyroglossal duct cyst. Follow-up afterwards continues for years, since a small proportion recur and are found by surveillance rather than by symptoms.

Biliary atresia and choledochal cyst

Biliary atresia deserves its own section for one reason: it is the paediatric surgical condition where a delay in diagnosis does the most irreversible harm, and the sign that identifies it is one that is routinely dismissed.

The bile ducts progressively scar and close, so bile cannot leave the liver and the liver is damaged by it. The presentation is jaundice that persists beyond the first two weeks of life, in a baby who otherwise looks well and is feeding — with pale, chalky stools and dark urine. Prolonged jaundice in a newborn is common and usually harmless, which is exactly why the pale stool matters: it is what separates the harmless kind from this one.

The operation, a Kasai portoenterostomy, connects a loop of bowel directly to the liver surface to allow bile to drain. Its results depend heavily on how early it is performed, which is the whole reason for the emphasis on timing. Even when it succeeds, some children later need transplantation, and biliary atresia is the commonest reason for liver transplantation in childhood — covered by organ transplantation.

A choledochal cyst is a congenital dilatation of the bile duct, presenting with jaundice, pain or a mass, and increasingly found on antenatal or incidental scans. It is removed rather than drained, and the reason is important: the abnormal duct carries a long-term risk of malignancy that does not go away if it is left in place, so excision with reconstruction is the operation even in a child with no symptoms.

Malrotation, volvulus and Meckel’s diverticulum

Malrotation is an incomplete rotation of the bowel during development, leaving it fixed by a narrow stalk instead of a broad base. Most of the time it causes nothing. Its significance is that it permits volvulus — the whole midgut twisting on that narrow stalk and cutting off its own blood supply, which damages bowel within hours.

The sign that matters is bile-stained vomiting in a baby, meaning vomit that is green rather than milky. It has other causes, most of them less serious, but it is investigated urgently in every case precisely because this is one of them. Diagnosis is by contrast study, and where malrotation is found the corrective operation broadens the base and repositions the bowel so twisting cannot recur.

A Meckel diverticulum is a remnant of a duct that should have disappeared before birth, present in a small percentage of people and silent in most. It matters when it contains stomach lining, which can ulcerate the bowel next to it and cause painless rectal bleeding — the classic presentation in a young child, and one of the few causes of significant bleeding in an otherwise well child. It can also cause obstruction or act as the lead point for intussusception. A symptomatic diverticulum is removed; one found incidentally during another operation is a judgement rather than an automatic removal.

Neck lumps in children

A lump in a child’s neck is one of the commonest reasons a family is referred, and the great majority are benign. Three congenital lesions account for most of the ones that are operated, and each has a characteristic position that largely makes the diagnosis.

Thyroglossal duct cyst

A thyroglossal duct cyst sits in the midline and moves upwards when the child swallows or puts the tongue out, because it remains attached to the base of the tongue along the path the thyroid took during development. That attachment is why the operation removes the central part of the hyoid bone along with the cyst: removing the cyst alone leaves the tract behind and it recurs.

Branchial cleft cyst

A branchial cleft cyst sits to the side of the neck, along the front border of the large neck muscle, and is a remnant of the branchial apparatus. It may present as a painless swelling, as a small opening in the skin that discharges, or as an abrupt infection that draws attention to something that had been there all along. Treatment is excision of the cyst with its whole tract.

Cystic hygroma and lymphatic malformation

A cystic hygroma is a lymphatic malformation, most often in the neck, present at birth or appearing in early childhood. Unlike the two above it does not have a neat capsule and tends to grow around normal structures rather than displacing them, which is why complete surgical removal is not always possible or wise. Sclerotherapy — injecting an agent that collapses the cysts — is frequently the better first treatment, and management is a combined decision rather than an automatic operation.

Two situations are handled differently. A neck lump that appeared with an infection and is tender is usually a reactive lymph node and is treated rather than removed. And a firm, painless, persistently enlarging node without infection is investigated properly rather than watched indefinitely.

Haemangioma and vascular anomalies

The distinction that governs everything here is between a tumour that grows and then involutes, and a malformation that never does.

An infantile haemangioma (infantile hemangioma) is the commonest tumour of infancy. It is typically not present or barely visible at birth, grows for several months, then involutes slowly over years. Because most disappear, the default is observation rather than treatment, and that is genuinely the right answer for the majority.

Treatment is for the minority where position rather than size creates a problem: near the eye, where it can obstruct vision and cause permanent visual loss; on the airway, where it can obstruct breathing; where it ulcerates; and where a large facial lesion may indicate an associated syndrome. Oral beta-blocker treatment transformed the management of these lesions and largely replaced both steroids and early surgery. It is prescribed and monitored by the treating physician, with the specific medicine, dose and monitoring decided in that clinic.

Vascular malformations are a different category. They are present at birth, grow proportionately with the child, and never involute — so they are classified by the vessels involved, and treated by sclerotherapy, embolisation, surgery or a combination, planned with interventional radiology. Calling a malformation a haemangioma, which happens often, produces the wrong expectation entirely: waiting for it to disappear wastes years.

Paediatric urology (pediatric urology)

A substantial share of this unit’s work concerns the kidneys and urinary tract, much of it now identified before birth. Pediatric urology is a sub-specialty in its own right in many countries and part of paediatric surgery in others; what matters to a family is that the person operating does it regularly, not which of the two labels the department carries.

Hypospadias

Hypospadias is an opening of the urethra on the underside of the penis rather than at the tip, frequently with curvature. It is one of the commonest congenital anomalies in boys and is corrected surgically, usually within the first two years, with the aim of a straight organ and a stream that can be directed. The severity varies enormously, and so does the operation: distal forms are frequently a single procedure, while proximal ones may be staged. The most useful thing a family can know beforehand is that circumcision is avoided when hypospadias is present, because the foreskin is frequently the tissue used in the repair.

Labial adhesions

Labial adhesions in young girls are a common finding that alarms parents and rarely needs an operation. The tissue edges stick together, usually resolving on their own around puberty as oestrogen levels rise. Treatment is considered where there is difficulty passing urine or recurrent infection, and topical treatment is tried before anything surgical. Forcible separation is not recommended: it hurts, and the adhesions re-form.

Vesicoureteral reflux

Vesicoureteral reflux is urine flowing backwards from the bladder towards the kidney, because the valve mechanism where the ureter enters the bladder is not working. It matters not in itself but because it carries infection upwards, and repeated kidney infection in a young child can scar a kidney permanently.

It is graded by severity, and the grade drives the approach. Lower grades frequently resolve as the child grows and are managed by monitoring, with attention to bladder and bowel habits — constipation is a genuine and frequently overlooked contributor. Preventive antibiotics are used selectively rather than universally. Surgery, whether by reimplanting the ureter or by endoscopic injection, is for higher grades, for reflux that does not resolve, and for children who keep getting kidney infections despite everything else.

Obstruction and posterior urethral valves

Antenatally detected hydronephrosis — a dilated kidney drainage system — is common and most of it resolves without any intervention, so the postnatal work is largely about separating the majority that need nothing from the minority that need something. Obstruction where the kidney meets the ureter is repaired when function is threatened rather than because a scan looks abnormal.

Posterior urethral valves are an obstruction in the urethra affecting boys only, and this one is different because the damage occurs before birth: the bladder and kidneys develop against a blockage. The valves are removed endoscopically, but the long-term issue is the bladder and kidney function that developed abnormally, which is followed for years afterwards alongside nephrology. Adult urological conditions and their treatment belong with urology.

Solid tumours of childhood

Two abdominal tumours account for most of the surgery, and both are worth describing because their treatment differs sharply from adult cancer surgery.

A Wilms tumour arises in the kidney, typically presenting as a painless abdominal mass a parent notices while bathing or dressing a child. Neuroblastoma arises from nerve tissue, most often in the adrenal gland, and behaves very differently depending on the child’s age and the tumour’s biology — some regress without treatment, others need intensive therapy.

The point common to both is that surgery is one step in a plan rather than the plan. Chemotherapy before surgery is standard in many protocols, and it shrinks the tumour so that the operation is safer and more complete. Deciding the sequence is a multidisciplinary decision involving oncology, radiology, pathology and surgery, and the surgical part is judged by whether it followed the protocol rather than by how much was removed on the day.

Childhood cancer outcomes have improved substantially over decades, largely because children are treated on internationally agreed protocols. That is the strongest argument for treatment in a unit that follows one — and the honest converse is that departing from a protocol to do something more aggressive is not a favour to a child.

Feeding surgery and reflux

Some children cannot be fed adequately by mouth — because of a neurological condition, an airway that is unsafe to swallow past, or a requirement that exceeds what they can take. A gastrostomy tube is placed through the abdominal wall into the stomach, endoscopically or laparoscopically, and it is worth saying plainly that it is not a step backwards: it usually ends the exhausting struggle of prolonged mealtimes and lets a child grow.

Severe reflux sometimes accompanies this, and a fundoplication — wrapping the top of the stomach around the lower oesophagus — can control it where medical treatment has failed. It is a decision made carefully rather than routinely, because the operation has its own consequences including difficulty vomiting and bloating, and because it does not work equally well in every group of children. The feeding regimen itself is set with nutrition and dietetics, and the endoscopic side with gastroenterology.

Laparoscopy and minimally invasive surgery in children

Most of what is done through large incisions in adults can now be done through small ones in children — appendicectomy, pyloromyotomy, orchidopexy for an impalpable testis, fundoplication, gastrostomy, and much of the newborn work in units that do it regularly.

The benefits are the ones expected: less pain, smaller scars on a body that will carry them for a lifetime, and a faster return to normal. The trade-offs are worth stating too. The working space in a small child is genuinely small, carbon dioxide insufflation is tolerated less well the smaller the patient, and some operations take longer laparoscopically — and a longer anaesthetic is not a neutral cost in a baby.

So the honest position is that the approach is chosen for the child rather than as a policy, and an open operation is not an inferior one. A surgeon who converts from laparoscopic to open during a procedure has made a judgement in the child’s favour, not a mistake.

Swallowed objects, and the one that is an emergency

Children swallow things, and most of what is swallowed passes without any intervention. Coins are the commonest and usually need only observation once past the oesophagus.

Two categories behave differently and are the reason this has its own section.

A button battery lodged in the oesophagus causes a chemical burn within hours, not days, and can damage the full thickness of the wall. It is removed urgently, and this is one of the few situations in paediatric surgery where the interval between swallowing and removal directly determines the outcome. Button batteries are in remote controls, toys, greetings cards, hearing aids and kitchen scales, which is why the advice is about the devices rather than about supervision.

More than one magnet, or a magnet with any other metal object, is the second. Individually they pass; together they attract through the walls of separate loops of bowel, trap the tissue between them and erode through it. A single magnet is usually watched, and more than one is treated as significant.

What paediatric surgery cannot do

It cannot make an operation appropriate because it is possible. Many childhood conditions resolve with growth, and umbilical hernias, most hydroceles, most antenatal hydronephrosis and the majority of haemangiomas are best served by doing nothing well.

It cannot promise a single operation. Conditions such as anorectal malformation, long-gap oesophageal atresia and complex urological anomalies are frequently staged, and describing a staged plan as one operation misleads a family from the start.

It cannot correct what did not develop. A congenital diaphragmatic hernia can be closed; the lung that never grew cannot be replaced. Outcomes in these conditions are determined largely before the surgeon is involved.

It cannot substitute for a protocol in childhood cancer. Surgery is one component, and the decision about sequence belongs to a multidisciplinary team.

It cannot guarantee continence or normal bowel function after reconstruction for the most complex anomalies. Many children do well; some need long-term programmes, and saying so at the start is part of the treatment.

It cannot be practised occasionally. This is a specialty where volume and a paediatric anaesthetic and intensive care service around it determine safety more than any individual technique.

Your multidisciplinary team

The paediatric surgeon (pediatric surgeon) performs the operation and, as importantly, decides whether it should be performed — a large share of the work in this unit is the decision not to operate. The paediatric anaesthetist manages an airway and a physiology with little reserve, and is the reason children are operated where children are operated routinely. The paediatric intensivist manages the newborn and the child after major surgery. The neonatologist cares for the preterm and newly born before and after the operation. The paediatric radiologist performs the ultrasound and contrast studies on which most of these diagnoses rest, and performs the enema reduction that treats intussusception without surgery. The paediatric nurse specialist and the stoma and continence nurse carry the part of the treatment that happens over months at home. The play specialist prepares a child for what is about to happen, which reduces the anaesthetic and analgesic requirement measurably.

Around them: paediatrics for everything medical, perinatology for the antenatal diagnosis and planned delivery, anaesthesiology and reanimation, pathology for the rectal biopsy that diagnoses Hirschsprung disease and for every tumour specimen, radiology for imaging and image-guided treatment, medical oncology and radiation oncology for childhood tumours, organ transplantation for biliary atresia that progresses, nephrology for kidney function after obstruction, urology for the transition to adult care, thoracic surgery for chest wall correction, gastroenterology and nutrition and dietetics for feeding, and medical genetics where an anomaly forms part of a syndrome.

The international patient journey

Four patterns account for almost everything, and they need different preparation.

A planned operation for a diagnosed condition. Hernia, hydrocele, undescended testis, a neck cyst, a gastrostomy. These are arranged as a defined admission, and what is needed beforehand is the diagnosis, any imaging, the child’s weight and growth records, immunisation status and any anaesthetic history. A recent respiratory infection is the commonest reason an operation of this kind is postponed, and knowing that in advance avoids a wasted journey.

A second opinion on a proposed operation. Common, and frequently the most valuable thing a family can obtain, because a meaningful share of childhood conditions are managed by observation and the question is whether to operate at all rather than how. This needs the imaging itself rather than the report, the previous notes, and the growth chart — and it can be answered remotely.

A complex or staged condition already partly treated. Anorectal malformation, Hirschsprung disease, oesophageal atresia, a complex urological anomaly. What matters here is the operative record of what has already been done, which is more informative than any scan, together with the imaging and the pathology. Planning is done before travel, because the assessment determines what the next stage is.

A newborn condition diagnosed before birth. This one is not a paediatric surgery journey at first: it is a perinatology one, because the delivery is planned where the surgery will be. The scan report and images matter more than anything else, and the timing is set by the pregnancy rather than by a waiting list.

Three practical notes. Bring the actual imaging rather than reports, since paediatric imaging is frequently re-read and the report is not reviewable. Bring the growth chart, which in a child is a clinical record rather than an administrative one. And bring the operative notes from any previous surgery, in the original language if necessary — a translated summary omits exactly the technical detail the next surgeon needs.