ON CONCUSSION OF THE BRAIN IN SOME OF ITS SURGICAL ASPECTS

Corpus callosotomy (CC) is one of the options in epilepsy surgeries to palliate patient seizures, and is typically applied for drop attacks. The mechanisms of seizure palliation involve disrupting the propagation of epileptic activity to the contralateral side of the brain. This review article focuses on the surgical aspects of CC. As a variations of CC, anterior two-thirds, posterior one-third, and total callosotomy are described with intraoperative photographs. As less-invasive surgical variations, recent progress in endoscopic CC, and CC without craniotomy, is described. CC remains acceptable under the low prevalence of complications, and surgeons should make the maximum effort to minimize the complication rate.

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Surgical anatomy of supratentorial midline lesions

Neurosurgical FOCUS ◽

10.3171/foc.2005.18.6.14 ◽

2005 ◽

Vol 18 (6) ◽

pp. 1-9 ◽

Cited By ~ 43

Author(s):

M. Gazi Yaşargil ◽

Uğur Türe ◽

Dianne C. H. Yaşargil ¸

Keyword(s):

White Matter ◽

Surgical Approach ◽

Surgical Anatomy ◽

Cerebral Hemispheres ◽

Surgical Exploration ◽

Fiber Dissection ◽

Dissection Technique ◽

Surgical Aspects ◽

The Brain

Object In this paper the authors correlate the surgical aspects of deep median and paramedian supratentorial lesions with the connective fiber systems of the white matter of the brain. Methods The cerebral hemispheres of 10 cadaveric brains were dissected in a mediolateral direction by using the fiber dissection technique, corresponding to the surgical approach. Conclusions This study illuminates the delicacy of the intertwined and stratified fiber laminae of the white matter, and establishes that these structures can be preserved at surgical exploration in patients.

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Occipital lobe morphological anatomy: anatomical and surgical aspects

Arquivos de Neuro-Psiquiatria ◽

10.1590/s0004-282x2002000400010 ◽

2002 ◽

Vol 60 (3A) ◽

pp. 566-571 ◽

Cited By ~ 11

Author(s):

Leandro Pretto Flores

Keyword(s):

Occipital Lobe ◽

Lateral Wall ◽

Surgical Approaches ◽

Important Region ◽

The Central Nervous System ◽

Interhemispheric Fissure ◽

And Performance ◽

Surgical Aspects ◽

The Brain ◽

Occipital Horn

BACKGROUND: The occipital lobe is an important region of the central nervous system and site of a wide variety of lesions. Different from others regions of the brain, whose anatomy has been already meticulously detailed, controversies about occipital lobe morphology can occasionally hinder the surgical approaches to it. METHOD: Twenty-six hemispheres were dissected, examining the distances of the medial structures of the posterior interhemispheric fissure region; identifying the sulci and gyri more frequently found in the lateral surface; and detailing the anatomy of the occipital horn of the lateral ventricle. Also, anatomical details of structures such as the calcarine sulcus and preoccipital notch were evaluated. RESULTS: Twenty-four hemispheres (92%) showed sulci with evident transverse trajectories in the lateral surfarce, and it was possible to identify marked longitudinal sulci in 16 (61%). All of the specimen presented a transverse sulcus in the inferior third of the lobe -- labeled in this paper as Inferior Transverse Occipital -- and 69% of the cases showed a transverse sulcus in the superior third -- labeled as Superior Transverse Occipital. The occipital horn was present in 53% of the cases at level of the anterior boundary of the lobe. It was a half moon shaped cavity, whose the medial wall was formed by the calcar avis and the lateral wall, roof and floor formed by fibers of the tapetum. CONCLUSION: The occipital lobe presents parameters that are often recognized in most of the dissected brain and can be useful for the planning and performance of surgery in this area of the brain.

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