Biomedical subjects

S Hunhevicz

Publications and source records attributed to S Hunhevicz.

4 recordsLinked to original sources

PubMed2006

A model for foramen ovale puncture training: Technical note.

BACKGROUND: Trigeminal neuralgia is a common cause of facial pain, characterized by shock-like pain affecting one or more branches of the trigeminal nerve. When conservative treatment fails and microdecompression is not indicated, percutaneous procedures are helpful. This percutaneous approach is done by a puncture up to the Gasserian ganglion, through the foramen ovale. Although simple and safe, this puncture demands some expertise from neurosurgeons. For that, a partnership between neurosurgeons and bio-engineers has developed a model for foramen ovale puncture, allowing practice for residents and young neurosurgeons. METHOD: A model for foramen ovale puncture has been created by interposition of synthetic materials over a skull, simulating the human face. FINDINGS: This model has shown great similarity with that found in conventional surgeries, even upon repeated testing by experienced functional neurosurgeons and young residents. CONCLUSION: This model for foramen ovale puncture training has demonstrated valuable help for initial practicing of this common neurosurgical procedure, particularly in centers where there are not many cadavers available for training.

Catheter Ablation↗

PubMed2000

[Stereotactic-guided surgery for cavernous angiomas].

Intracerebral cavernous angiomas may cause hemorrhage, epileptic seizures and neurological deficits. The diagnosis of these lesions became easier with the advent of the magnetic resonance image (MRI). Radical resection is the treatment of choice. Due to frequent subcortical or deep location, image-guided techniques, such as stereotactic-guided surgery, offer many advantages as smaller skin incision and craniotomy, less brain manipulation with consequently lower morbidity. We present a series of nine cavernous angiomas treated by stereotactic-guided radical surgical resection. The diagnosis was done by MRI and confirmed by pathologic studies in all cases. Mean age of patients was 30 years old (range 20-54 years). Postoperative morbidity occurred in two cases: one patient had a convulsion on the third postoperative day and the other presented dysphasia and hemiparesis on the second postoperative day, both with total recovery. Total resection of the lesion was possible in all cases with no neurological deficit.

Adult↗

PubMed1996

[Stereotactic surgery for intracranial mass lesions: diagnosis and treatment].

The authors present a study about 50 stereotactic procedures for intracranial lesions. In 12 cases stereotaxis was used as a treatment: stereotactic surgical resection (5 patients) and aspiration of lesions (7 patients). This study confirms the great accuracy and low morbidity of the stereotactic techniques. Computed tomography and magnetic resonance imaging determinate the precise stereotactic coordinates, but in some cases it is necessary to perform stereo-angiography. The stereotactic surgical resection of brain tumors allows the treatment of deep lesions or located at functional areas and considered to be inoperable before. The related literature is discussed.

Adolescent↗

PubMed1995

[Microsurgical treatment of trigeminal neuralgia. A study of 50 cases].

The authors present a study of 50 patients with trigeminal neuralgia treated by posterior fossa microsurgery. Microvascular decompression of the trigeminal nerve was performed in 48 patients. In 2 cases no neuro-vascular compression was found, and a partial rhizotomy was carried out. In 98% of the cases there was postoperative abolition of the pain. Two cases of wound infection and three CSF fistulas were the operative complications. These patients were reoperated and cured. Twenty five patients were reviewed between 13 months and 8 years after surgery. Twenty one remained painfree without any drug, 3 were painfree taking 200 to 400 mg Carbamazepineper day, and 1 patient was reoperated after two years without pain because of recurrence of the neuralgia. There was no mortality or major morbidity in this series. Our results and the literature concerning this method are discussed in this article. In conclusion, microvascular decompression may be indicated in a large number of patients with essential trigeminal neuralgia due to its excellent pain control, no mortality and low morbidity.

Adult↗