Search Results

You are looking at 1 - 10 of 4,931 items for :

  • "aggressiveness" x
Clear All
Restricted access

Cristina V. Torres, Rafael G. Sola, Jesús Pastor, Manuel Pedrosa, Marta Navas, Eduardo García-Navarrete, Elena Ezquiaga and Eduardo García-Camba

E rethism describes severe cases of unprovoked aggressive behavior, usually associated with some degree of mental impairment and gross brain damage. 33 The etiology can be epileptic, postencephalitic, or posttraumatic, or the condition can be due to brain malformations or perinatal insults. Erethism is usually accompanied by hyperkinesia, destructiveness of objects, and self-aggressiveness; the condition is often refractory to medication and electroconvulsive therapy, and patients may need to be interned in institutions, where they are managed with major

Restricted access

Cristina V. Torres, Guillermo Blasco, Marta Navas García, Elena Ezquiaga, Jesús Pastor, Lorena Vega-Zelaya, Paloma Pulido Rivas, Silvia Pérez Rodrigo and Rafael Manzanares

P athological aggressiveness constitutes a significant social problem; it is estimated that it affects up to 45% of patients with mental retardation. 31 Despite the fact that most cases are correctly managed with psychiatric medication, there is a subgroup that is resistant to conservative measures. 41 Patients in this medication-resistant group frequently need to be admitted to institutions and managed under continuous mechanical restraint, which significantly impairs their quality of life and life expectancy. 18 , 23 , 31 , 41 Long-term deep brain

Free access

Viren S. Vasudeva, John H. Chi and Michael W. Groff

V ertebral hemangiomas are benign vasoformative neoplasms of endothelial cells that grow within marrow spaces in the bone and encase bony trabeculae. They are generally considered neoplasms, but due to the lack of aggressive histopathological features, some authors have referred to them as hamartomas or vascular malformations. 32 , 37 , 45 , 72 There is at least one associated genetic rearrangement that has been described resulting in a new fusion gene, EWSR1-NFATC1 , which suggests that vertebral hemangiomas may in fact be neoplasms, but this remains

Free access

Doniel Drazin, Neil Bhamb, Lutfi T. Al-Khouja, Ari D. Kappel, Terrence T. Kim, J. Patrick Johnson and Earl Brien

preciseness for addressing aggressive sacral tumors in spine surgery. The use of stereotactic navigation with cone-beam fluoroscopy and CT to obtain 3D imaging has been well described for the safe and accurate placement of pedicle screws. 44 , 52 CT guidance has also been described in surgical planning for resection of nonsacral spinal tumors. 76 , 85 , 86 It has been used to aid in localization of spinal lesions, visualize operative margins, and plan osteotomies in order to optimize surgical outcome. In this paper, we identified and discussed these operative nuances

Restricted access

Ramin J. Javahery, Laurence Davidson, Jason Fangusaro, Jonathan L. Finlay, Ignacio Gonzalez-Gomez and J. Gordon McComb

are reporting 2 additional cases that differ from the previously reported cases because they demonstrated an aggressive postoperative course. Case Reports Case 1 History and Examination This 13-year-old girl originally presented in November 2000 with a 1-month history of progressive headaches, lethargy, and loss of vision in her left eye. Upon physical examination, she was found to have papilledema and decreased visual acuity in her left eye. She could only count fingers using her left eye and had an associated afferent papillary defect. The patient

Restricted access

George A. Younis, Raymond Sawaya, Franco DeMonte, Kenneth R. Hess, Steffen Albrecht and Janet M. Bruner

A lthough tumors originating from the meninges are typically benign, they occasionally behave in an aggressive fashion and carry a much poorer prognosis than do benign meningiomas. Hemangiopericytoma, meningeal sarcoma, atypical meningioma, and malignant meningioma are four aggressive meningeal tumors frequently associated with extracranial metastasis and multiple recurrence. The relatively few studies published on the subject of aggressive meningeal tumors do not concur on the features that distinguish these four tumor types on the clinical, histopathological

Full access

Maria Mpakopoulou, Haralambos Gatos, Alexandros Brotis, Konstantinos N. Paterakis and Kostas N. Fountas

–37 also demonstrated in monkeys and cats that a temporal lobectomy and amygdalectomy had a taming effect. Terzian and Ore 41 confirmed these findings by showing the same taming effect in humans following temporal cortical structure and amygdala removal. Over the next decades, there was increasing evidence that the amygdaloid nucleus was a dominant component of the basolateral limbic circuit and actively involved in the development of aggressive behavior. 23 Ursin 43 demonstrated in experimental animal studies that electrical stimulation of the amygdala could

Restricted access

Robert G. Whitmore, Jayesh P. Thawani, M. Sean Grady, Joshua M. Levine, Matthew R. Sanborn and Sherman C. Stein

medical costs and loss of productivity, were estimated at $60 billion. 14 , 27 The indirect costs of TBI are expected to increase significantly, in part due to the growing population of TBI patients who survive and require ongoing medical assistance. 33 Because the morbidity and mortality associated with TBI are related to both primary and secondary mechanisms, 9 , 30 early and aggressive interventions are associated with improved patient outcomes. 4 , 15 , 36 , 42–44 , 49 Adherence to the Brain Trauma Foundation guidelines has increased significantly among centers

Restricted access

Stefano Ferraresi, Debora Garozzo and Enzo Bianchini

A ggressive fibromatosis is a nonmetastasizing and noninflammatory proliferation of mature fibrous tissue, which often spreads out fascias and muscular aponeuroses. This lesion is notable for being locally infiltrative and frequently recurrent. It is found mostly in women at any stage of life. The terms “aggressive fibromatosis” and “desmoid tumor” (derived from the Greek word “desmos” meaning “bound”) designate the same entity. Aggressive fibromatosis usually starts as a painful mass that develops slowly and is located in the limbs—girdle area (67%), neck

Free access

Michele Rizzi, Andrea Trezza, Giuseppe Messina, Alessandro De Benedictis, Angelo Franzini and Carlo Efisio Marras

to be an effective treatment in severe cases of aggressive behavior in patients with intellectual disability (ID), 15 , 23 , 35 , 38 , 66 which enables us to formulate a hypothesis on disease pathogenesis and brain functioning. 51 The Disease The prevalence rate of challenging behavior in people with ID is reported to be as high as 45%, but limited incidence data exist. 22 , 32 , 40 Pathological aggressive behavior is one of the main reasons that people with ID are referred to specialist services. 69 This fact is not surprising, because people with ID rarely