A hybrid simulation model for pre-operative planning of transsphenoidal encephalocele.

Congenital transsphenoidal encephalocele (CTE) surgical correction is a challenging procedure. Although rare, this anomaly, characterized with neural herniation elements, including the pituitary gland or optic pathway through the sphenoid bone with anatomical alteration, can be presented in many different ways and should be individually analyzed. Significant advances in medical technology and the 3D models may simulate the complex anatomical relations of the human body. Nowadays, medical education relies on the availability of standardized materials that can reliably emulate human anatomy. Therefore, realistic anatomical models have become an alternative for cadavers or animal specimens. In this technical note, the authors present a new technique to create personalized models that combine 3D printing, molding, and casting to create an anatomically and tactilely realistic model based on magnetic resonance and computerized tomography images. Produced from different silicon types, the model recreated the anatomic alterations precisely, allowing a multidisciplinary team to determine the adequate surgical approach for this patient. We describe a case of congenital transsphenoidal encephalocele of a 3-year-old boy, whose surgical correction was planned using a hybrid model. The technical description of the model is given in detail. This new hybrid model allowed a detailed discussion of the surgical approach aspects by having tissues of different consistencies and resistances and a very high prediction rate. This approach may allow a reduction in surgery time and possible complications after operative procedures.

Fulfilling Need for Neurosurgical Services in Sub-Saharan Africa: Initial Angola-Brazil Training Experience.

BACKGROUND: Although Africa accounts for 15% of the global volume of neurosurgical disease, African hospitals and health care networks have access to <1% of the neurosurgeon community. Health care and neurosurgical care are particularly scarce in sub-Saharan Africa due to long periods of imperialism, civil war, poverty, and famines that have plagued the area. METHODS: We provide a historical perspective and initial experience of the development of neurosurgery in Angola. RESULTS: The Republic of Angola has the seventh largest territory in Africa and a population of approximately 29 million people; however, it has a severe deficit of neurosurgery specialists. Between 1975 and 2012, only 5 neurosurgeons practiced in the country. We report the initial experience of the first Angolan physician who completed a full neurosurgical residency in Brazil through the Hospital das Clínicas-University of São Paulo Medical School international medical training program. The challenges of fulfilling the need for neurosurgical services and the future perspectives of building a sustainable program in Angola are discussed. CONCLUSIONS: Partnerships between developing countries and sub-Saharan African countries may be the starting point in supplying neurosurgical specialists to the countries in need.