Passing across or through either the tentorial notch or tentorium cerebelli.
References in periodicals archive ?
Microsurgical anatomy of the superior petrosal venous complex: new classifications and implications for subtemporal transtentorial and retrosigmoid suprameatal approaches.
Prevention of postoperative visual field defect after the occipital transtentorial approach: anatomical study.
As a result, all these pathologies cause severe cerebral damage resulting in decreased cerebral perfusion and transtentorial herniation in response to cerebral oedema formation and increased intracranial pressure.
(8,9) Serial pupillometer values have been shown to correlate with intracranial pressure (ICP) (4,10,11) and signs of transtentorial brain herniation (12) and may be an important predictor of outcome after cardiac arrest.
The neuroimaging revealed a large intraaxial heterogeneous mass lesion in the left frontal and anterior parietal lobe associated with a 1.3 cm right midline shift, effacement of suprasellar cistern, and obliteration of the perimesencephalic cistern likely representing transtentorial descending herniation.
In the absence of unilateral subdural hematomas, most cases of IH produce central incisural herniation, rather than the more common asymmetric, or paracentral downward transtentorial herniation typically associated with asymmetric supratentorial mass effect.
Brainstem hemorrhage in descending transtentorial herniation (Duret hemorrhage).
* En las lesiones en el mesencefalo se pueden observar los siguientes patrones pupilares segun la ubicacion de la lesion: lesiones en la region tectal dorsal muestran pupilas fijas, con media o poca dilatacion que conservan el reflejo de alojamiento; las lesiones nucleares mesencefalicas suelen dar lugar pupilas con una dilatacion media, usualmente relacionadas con una herniacion transtentorial; las lesiones bilaterales del nervio oculomotor conllevan a midriasis paralitica, generalmente asociada con hernia uncal (19,21).
Estamos asistiendo a la formacion de un "centro" transtentorial constituido en parte por el espacio digital, a traves de las intensas transacciones economicas de la red de ciudades globales.
Results are often nonspecific and neurologic decline as well as transtentorial herniation after lumbar puncture has been well documented and can lead to fatal consequences [4, 7, 8].
Traystman, "Treatment of transtentorial herniation unresponsive to hyperventilation using hypertonic saline in dogs: effect on cerebral blood flow and metabolism," Journal of Neurosurgical Anesthesiology, vol.