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Medicolegal issues in paediatric practice: proceedings of the 4th Northern Regional Paediatric Colloquium.

Ethical dilemmas frequently arise in paediatric practice. Given the nature of the speciality, these issues are pertinent to both the medical and legal professions. It is of potential benefit for the professions to meet and discuss such cases outwith the immediate clinical setting. A series of such meetings have been held in the Northern region. We report the proceedings of the fourth meeting. Four cases were presented and the issues arising were debated. The key points from each discussion are described.

Adolescent↗

Paediatric dentistry in the new millennium: 3. Use of inhalation sedation in paediatric dentistry.

Provision of General Anaesthesia is now limited and restricted to the hospital setting. Sedation for paediatric patients is an essential tool in anxiety management and is used as an adjunct to behaviour management. Inhalation sedation with nitrous oxide/oxygen sedation to reach a plane of relative analgesia may be administered easily and safely to children in general dental practice and is a potential alternative to general anaesthesia.

Administration, Inhalation↗

Prospective randomised trial of chemotherapy given before radiotherapy in childhood medulloblastoma. International Society of Paediatric Oncology (SIOP) and the (German) Society of Paediatric Oncology (GPO): SIOP II.

In a multicentre randomised clinical trial 364 children with biopsy proven medulloblastoma were randomly assigned to receive or not pre-radiotherapy chemotherapy. Children with total or subtotal removal of the tumour, no evidence of invasive brain stem involvement, and no evidence of metastatic disease either within or without the cranium were designated "low risk", those with gross residual tumour, evidence of invasive brain stem involvement or metastases in the central nervous system were designated "high risk". All children were prescribed 55 Gy to the tumour bearing area. "Low risk" children could be randomised to "standard" radiotherapy 35 Gy to the craniospinal axis or "reduced" dose 25 Gy to the craniospinal axis. Chemotherapy consisted of vincristine, procarbazine, and methotrexate given in a 6-week module before radio-therapy, and for "high risk" children, vincristine and CCNU given after radiotherapy. No benefit for the receipt of pre-radiotherapy chemotherapy could be demonstrated for any group. In addition, a negative interaction was observed between the receipt of the chemotherapy and reduced dose radio-therapy with a particularly poor outcome being observed in this group of children.

Adolescent↗

Prospective randomized cooperative medulloblastoma trial (MED 84) of the International Society of Paediatric Oncology (SIOP) and of the (German) Society of Paediatric Oncology (GPO).

This international, prospective, randomised therapeutic study is based on previous, separate studies of the two societies. The study asks two principal questions: Is it possible to improve the results of therapy by inserting, between surgery and post-operative irradiation, an intensive course of chemotherapy consisting of vincristine, procarbazine and methotrexate, followed by citrovorum factor rescue? In "low risk" patients (i.e. those with macroscopically "complete" resection and absence of metastases at diagnosis), can the radiotherapy to CNS areas outside the primary tumour site be reduced by 10 Gy with the aim of reducing late sequelae of irradiation but without compromising survival results? The study also aims at standardising diagnostic methods, neurosurgical procedure and radiotherapeutic technique employed in this tumour. For statistical reasons, results can only be disclosed after the end of the recruitment phase. It is intended to include approximately 350 patients in the study, which is planned to continue until the end of 1988.

Antineoplastic Combined Chemotherapy Protocols↗