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Effective dose at pneumatic reduction of paediatric intussusception.

AIM: The purpose of this study was to assess screening times and resulting dose implication at pneumatic reduction of intussusception in the paediatric age group and to examine the relationship with the outcome of the procedure. MATERIALS AND METHODS: We retrospectively reviewed the case notes and departmental records of 143 children who had undergone a total of 153 pneumatic reductions in our department over a 4-year period. Success rates, screening times and available dose-area products (DAP) were recorded. The DAPs were converted to effective dose (ED) for 77 procedures. RESULTS: A 76.5% (117/153) success rate was achieved with a recurrence rate of 6.5% and only one complication: a perforation. Screening times were recorded in 137 reductions and ranged from 15 s to 22.6 min. Although the longest screening time was associated with an unsuccessful outcome, the second longest time of 21 min was successful. This gave a DAP of 1278 cGy cm(2)and an ED of 12.73 mSv, which is equivalent to approximately 400 abdominal films for a 1-year-old. A lifetime risk of fatal cancer of one in 1000 was achieved, assuming the worst case, after a screening time of 30 min on our conventional fluoroscopy unit. CONCLUSION: Our success rate compares well with other centres. Our institution is a tertiary referral centre and the occasional long screening time may reflect the delay and complex nature of the patients referred. Persistence at air reduction may be successful and the success rate increases with delayed attempts but the risks of the increasing radiation burden must be weighed against the risks of emergency surgery and anaesthesia.Heenan, S. D. (2000). Clinical Radiology 55, 811-816.

Air↗

Barium enema in pediatric intussusception; a review of 108 cases.

A material of 108 patients with 125 intussusceptions was evaluated retrospectively. Barium enema is recommended as an excellent diagnostic tool. Reduction should be tried in all cases except those with signs of peritonitis, because the enema causes fewer complications and leads to a considerably decreased hospital stay.

Barium Sulfate↗

A case of ileocolic intussusception from renal cell carcinoma.

We report a case of ileal metastasis of renal cell carcinoma (RCC) in a 58-year-old male. The patient had a history of radical nephrectomy for a right RCC, and 2 years later underwent bilateral partial pneumonectomy for metastatic disease of the lung. A period of 1 year after the partial pneumonectomy, he developed bloody stools. Colonoscopy revealed an ileocolic intussusception caused by a polypoid tumor in the ileum, and the tumor was observed to be protruding into the ascending colon. The histological features of the tumor biopsy specimen confirmed the diagnosis of metastatic RCC. Metastasis of RCC in the small bowel is a rare disease clinically. To our knowledge, this is the first reported case with ileal metastasis of RCC, which has been definitively diagnosed by colonoscopy.

Biopsy↗

[Differential diagnosis of morbus Crohn disease: intussusception of the colon].

We report on a 35-year old women with severe abdominal pain, cramps, diarrhea with blood and a palpable paraumbilical resistance. The symptoms appeared a few days before admission and were recurrent within the last two years. The abdominal ultrasound showed a target sign with a thickened wall from the right to the left colon flexure with inhomogeneous reflexes. The CT-scan and barium enema showed an intussusception of the colon. After hemicolectomy of the right colon a 6 x 4 x 4 cm exophytic tumor near the ileocoecal valve was detected. Histologically the tumor was diagnosed as adenocarcinoma of the coecum (pT2pNOpMX G2).

Adenocarcinoma↗

Infantile malignant peripheral nerve sheath tumour of the ileum causing ileo-ileal intussusception in an infant.

Nerve sheath tumours are rare tumours. We report here for the first time a malignant peripheral nerve sheath tumour of the ileum in a child who presented with recurrent intussusceptions. The tumour was excised with wide margins and staging procedures did not show any metastatically suspicious lesions. Complete resection in non-metastatic tumours seems to be the therapy of choice.

Female↗

Intussusception after gastric surgery.

Intussusception following gastric surgery is a rare postoperative complication. It may develop in clinical situations following gastroenterostomy, Billroth II gastric surgery with or without Braun anastomosis, or Roux-en-Y gastrojejunostomy. The patients may present with either an acute surgical emergency or with a chronic, relapsing form. The mortality may be up to 50 % in these cases if not treated appropriately, but little is known about the mechanism underlying the condition. Early diagnosis with a high index of suspicion and prompt treatment of the acute form are therefore important. Surgical reduction with laparotomy is mandatory, although definitive corrective and preventative measures have not yet been established.

Adult↗

Neonatal intussusception misdiagnosed as necrotizing enterocolitis.

Two premature infants with abdominal distension, respiratory distress syndrome, and sepsis were initially diagnosed and treated for necrotizing enterocolitis (NEC). After failure of conservative measures, a diagnosis of intussusception was contemplated. This pitfall in the management of NEC, with medical treatment and a poor response, has been increasingly reported.

Diagnosis, Differential↗

Histological study of intestinal atresia due to intrauterine intussusception.

Histological studies were conducted on 4 patients with intestinal atresia due to intrauterine intussusception. This atresia is characterized by a polypoid lesion as the remnant of the invaginated and necrotized intestine in the distal intestinal lumen. As the result of the histological survey in the affected intestine, we tentatively classified this atresia into two types, type A and B. In type A, the polypoid lesion is observed at the blind end, with relatively good preservation of the structure of the intestine. In type B, the polypoid lesion is located apart from the blind end, and the lesion is markedly necrotic. The interruption of intestinal blood flow seemed to be more severe in type B than in type A.

Female↗

Transumbilical approach to intraoperative enteroscopy in a child with intussusception and Peutz-Jeghers syndrome.

Intraoperative enteroscopy has been known to reduce reoperation rates in complicated Peutz- Jeghers polyposis. It is usually performed during a laparotomy. This case report illustrates the feasibility of performing intraoperative transenterotomy enteroscopy together with extracorporeal ileal resection using the transumbilical approach after successfully reducing an intussusception laparoscopically in a 10-year-old child with Peutz-Jeghers syndrome. This technique obviates the need for a laparotomy.

Child↗

Intestinal metastasis causing intussusception in a patient treated for osteosarcoma with history of multiple metastases: a case report.

Intestinal intussusception caused by metastatic tumors is a very rare condition. Preoperative diagnosis is not easy because of the condition's rarity and because of mild abdominal physical presentation. We report on a patient with osteosarcoma who suffered from abdominal pain and emesis during the period of autologous peripheral blood stem cell transplantation. He had undergone tumor excision and radiotherapy several times prior to autologous peripheral blood stem cell transplantation because of multiple metastases. Intestinal metastasis was suspected initially by computed tomographic scan and sonogram and was proved by surgical resection and pathological findings. Clinicians caring for pediatric patients with osteosarcoma with a history of multiple metastases should consider the possibility of intestinal metastases when equivocal abdominal symptoms develop after intensive chemotherapy.

Adolescent↗

CT appearance of adult intussusception.

A computed tomographic evaluation of adult ileocolic intussusception secondary to polypoid adenocarcinoma is presented. The observed tapering homogeneous peripheral mantle and mixed density core may be characteristic for this entity.

Adenocarcinoma↗

Cecal polyp and appendiceal intussusception in a child with recurrent abdominal pain: diagnosis by colonoscopy.

A 7-year-old boy developed recurrent abdominal pain. He was eventually discovered to have an inverted appendix via colonoscopy. At surgery, a polyploid intracecal mass was palpated at the base of the partially invaginated appendix. Resection of the cecal mass (histologically, a juvenile polyp) and appendix was easily accomplished. The types of clinical presentation and treatment of children with appendiceal intussusception are discussed.

Abdomen↗

Intussusception: a supplement to the mnemonic for coma.

Expected clinical manifestations of intussusception include paroxysmal abdominal pain, vomiting, abdominal mass, and with time, rectal bleeding. We report a case where lethargy and vomiting are the presenting complaints. Diagnostic delay was encountered for this infant who had altered sensorium without accompanying pain, melena, or mass on initial examination. Either plain radiographs, supplemented by ultrasonography of the abdomen, or a barium enema should be performed in infants with unexplained lethargy.

Coma↗