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Urgosik D - - 1998
Between October 1995 and October 1996, we treated 49 patients suffering from trigeminal neuralgia with Gamma Knife radiosurgery. There were 23 males and 26 females. The mean age was 68 (range 38-94 years) The root of the trigeminal nerve close to brain stem was chosen as the target. The maximum ...
Kondziolka D - - 1998
To evaluate the role of Gamma Knife radiosurgery as the first surgical therapy in the management of medically refractory trigeminal neuralgia, we reviewed outcomes on our first 23 patients who had radiosurgery as primary surgical therapy. These patients represented 19% of our overall series. Mean patient age was 66 years, ...
Fayad P B - - 1998
Intracerebral hemorrhage (ICH) represents 8 to 15% of all strokes in the United States and 20 to 30% of all strokes in Japan and China. Although ICH represents a relatively small fraction of total strokes, it is a formidable disease, with a 30-day mortality rate two- to sixfold higher than ...
Bejjani G K - - 1998
INTRODUCTION: There is some controversy regarding the value of intraoperative neurophysiological monitoring in predicting postoperative neurological deficits. We discuss our experience with the use of intraoperative somatosensory evoked potentials (SSEPs) during surgery of cranial base tumors. METHODS: We retrospectively reviewed all of the procedures that had been performed for the ...
Gelblum D Y - - 1998
PURPOSE: To determine the prognostic significance of pretreatment edema, lesion size and location on morbidity following stereotactic radiosurgery (SRS). METHODS AND MATERIALS: Forty-seven evaluable patients with 63 lesions were treated on a 6-MV linear accelerator radiosurgery system at Memorial Sloan Kettering Cancer Center. All patients received a 10-mg intravenous bolus ...
Halbach V V - - 1998
OBJECT: In this study the authors report on the results of endovascular treatment for mural-type vein of Galen malformations (VGMs) in a group of infants. METHODS: Eight children (six infants and two neonates) who suffered from symptoms caused by a mural-type VGM were treated by means of endovascular therapy. Their ...
Emery D J DJ The Toronto Hospital, Western Division, The University of Toronto; Toronto, Ontario, Canada - - - 1998
This is a retrospective review of the clinical records and imaging of 14 children with spinal arteriovenous malformations referred to the neurointerventional service at our institution. The lesions are categorized by anatomic location into subpial (5 cases), epidural (3 cases), and paraspinal (6 cases). There were no dural arteriovenous fistulas ...
Naff N J - - 1998
BACKGROUND: The natural history of cerebral venous malformations has not been well documented, and the clinical significance of these common lesions remains controversial. OBJECTIVE: The objective of this study was to follow longitudinally the clinical course of patients with cerebral venous malformations to document the natural history of the lesion. ...
Hirai T - - 1998
PURPOSE: To evaluate the long-term results of irradiation alone or of embolization with or without irradiation in patients with dural carotid cavernous fistulas (DCCFs). MATERIALS AND METHODS: Between 1984 and 1996, symptomatic DCCFs in 26 patients were treated by using irradiation alone (protocol 1, n = 12) before April 1988 ...
Hartmann A - - 1998
BACKGROUND AND PURPOSE: Decisions on invasive arteriovenous malformation (AVM) treatment are currently based on natural-course risk estimates of AVM bleeding and assumptions on morbidity from cerebral hemorrhage in general. However, morbidity of AVM hemorrhage has rarely been reported. We sought to assess the morbidity of intracranial hemorrhage in patients with ...
Hejazi N - - 1998
Eighty patients with intramedullary spinal cord tumors were treated by microsurgical methods between 1988 and 1996. Twenty-nine patients were diagnosed with astrocytoma, 36 with ependymoma, five with metastasis, four with lipoma, three with dermoid or epidermoid tumor, two with neurofibroma, and one with neuroma. Vascular and infectious lesions (such as ...
Lin C L - - 1998
There is no consensus of opinion on the treatment of hypertensive putaminal hemorrhage (HPH), especially in patients older than 65 years. The purpose of this study was to study the surgical outcome of HPH in patients older than 65 years while considering mortality and activity of daily life. Among eighty-three ...
Yamamoto M - - 1998
BACKGROUND: To our knowledge, there are no reported arteriovenous malformation (AVM) series in which detailed long-term follow-up results after radiosurgery were described based on the whole patient group. METHOD: We performed a detailed long-term follow-up study of 53 patients with cerebral AVMs treated with gamma knife (GK) radiosurgery, with emphasis ...
Tseng E Y - - 1998
Angiography with selective embolization has become an accepted method of treating posterior epistaxis that is not controlled with conservative measures. The authors reviewed 112 cases of patients who had received selective angiographic embolization for refractory epistaxis from January 1990 to December 1995. There were 114 embolizations over this 5-year period. ...
Heffez D S - - 1998
BACKGROUND: The reported efficacy of AVM radiosurgery--80-85% 2-year obliteration rate--is based exclusively on the results of follow-up arteriography in a small percentage of treated patients; it is therefore inaccurate. We examined the effect of incomplete follow-up on the results of AVM radiosurgery. METHODS: We reviewed the results of AVM radiosurgery ...
Sasaki T - - 1998
Ninety-six cases of arteriovenous malformation (AVM) in the basal ganglia and thalamus were retrospectively analyzed. The prognosis of patients presenting with hemorrhage was poor, if conservatively treated. The mortality and morbidity were 62.5% and 12.5%, respectively. In the surgically resected group, 10 (66.6%) out of 15 patients are working and ...
Yamane F - - 1998
The natural history of cerebral arteriovenous malformations (AVMs) was studied in 115 patients with untreated or incompletely obliterated AVM. Sixty-six patients had histories of hemorrhage, 20 had seizures, 18 had progressive ischemic neurologic deficits and 8 had headache. Three patients had no symptoms attributable to the AVM. Twenty-seven (23%) AVMs ...
Inoue H K - - 1998
Clinical features and treatment results of 33 patients with unruptured arteriovenous malformations (AVMs) were evaluated. Nine AVMs were located in the frontal lobe, 8 in the motor cortex, 5 in the parietal lobe, 6 in the temporal lobe, 2 in the occipital lobe and 3 in other parts of the ...
Haupt W F - - 1998
In a prospective study of 200 patients with cerebrovascular disease (48 intracerebral hemorrhages, [ICH]; 64 subarachnoid hemorrhages, [SAH]; 48 supratentorial and 40 infratentorial ischemic strokes), we assessed the individual and combined prognostic value of median-nerve somatosensory evoked potentials (SEP) and brainstem auditory evoked potentials (BAEP) within 72 hours of admission. ...
Ehara K - - 1998
The clinical results and patient characteristics of 318 cases of cerebral arteriovenous malformations (AVMs) were analyzed: 138 patients were treated by surgery including 98 cases of total removal and 17 cases of subtotal removal; 37 patients were treated conservatively; 139 patients were treated by gamma-knife and 6 patients were treated ...
Bertsch H - - 1998
PURPOSE: We reviewed all pediatric cases referred for emergent/urgent therapy (requiring treatment within 48 hours) to identify frequency, patterns of presentation, and efficacy of therapy. We defined five categories of emergent/urgent therapy based on irradiated site and/or signs: Group I, spinal cord compression; Group II, respiratory compromise; Group III, infradiaphagmatic ...
Sasaki T - - 1998
OBJECT: Because arteriovenous malformations (AVMs) in the basal ganglia and thalamus are difficult to treat, the authors conducted a retrospective study to determine the best management strategy for these lesions. METHODS: The authors reviewed the management and outcome in 101 patients with AVMs treated between 1971 and 1995. In 15 ...
Flickinger J C - - 1998
PURPOSE/OBJECTIVE: To elucidate how the risks of developing temporary and permanent neurological sequelae from radiosurgery for arteriovenous malformations (AVM) are related to AVM location, the addition of stereotactic magnetic resonance (MR) imaging to angiographic targeting, and prior hemorrhage or neurological deficits. MATERIALS AND METHODS: We evaluated follow-up imaging and clinical ...
Mizoi K - - 1998
To define the current status of the multimodality treatment for large and critically located arteriovenous malformations (AVMs), we have made a retrospective review of 54 consecutive patients with Spetzler-Martin grade IV and V AVMs. The size of nidus is larger than 3 cm in diameter in all cases. Initially, all ...
Hassler W - - 1998
In the last years, treatment decisions of arteriovenous malformations (AVMs) were influenced by the improvement of stereotactic radiosurgery and were revolutionized by development of embolization techniques. The aim of this report was to examine the results, effectiveness, and complications associated with angioma surgery. 191 patients with AVMs were operated by ...
Awada A - - 1998
The treatment of brain tuberculomas is primarily medical. Surgery, excision or biopsy, is generally performed when the diagnosis is in doubt or there is no response to medical therapy. The aim of this study was to determine the radiological evolution of intracranial tuberculomas under standard anti-tuberculous drug therapy and to ...
Meyer B - - 1998
To challenge the concept of steal rendering the surrounding cortex ischemic, we examined patterns of nutritive capillary flow in the vicinity of AVMs. With a spectrophotometer (EMPHO, BGT) capillary O2 saturation (O2 satn.) was intraoperatively scanned around AVMs in n = 44 patients and in n = 42 controls. 130,000 ...
Karlsson B - - 1998
OBJECTIVE: The goal was to report the treatment results after a second gamma knife treatment and to compare them with the results obtained after a first gamma knife treatment, as well as to investigate whether the models to predict the results after a first treatment are also applicable after gamma ...
Ausman J I - - 1998
Pericentral arteriovenous malformations (AVMs) have more often been deemed inoperable lesions because of their complexity, owing to their critical locations and dismal outcome. This study discusses the management of this group of patients with a variety of treatments which includes surgery, nidus embolization, and radiosurgery. Out of 89 patients treated ...
Górriz E - - 1998
The aim of this study was to evaluate our results in treatment and management of symptomatic hepatic venous malformations using transcatheter embolization therapy. From 1991 to 1997 five venous malformations were embolized in one man and four women ranging in age from 31 to 50 years. All patients presented nonspecific ...
Perini S - - 1997
Our study group consisted of 29 patients who underwent endovascular treatment for the presence of pial AVMs. The patients were treated with various embolization methods including "-free flow" embolization (2 cases); embolization with suture threads (2 mm long micro-emboli: 17 cases) and embolization with acrylic glue (10 cases). There were ...
Nicolato A - - 1997
BACKGROUND: The main techniques and results in stereotactic radiosurgical treatment of endocranial AVM's are described and compared. The authors also report their preliminary experience in the treatment of 6 consecutive pediatric patients with intracerebral vascular malformations using gamma knife (GK) radiosurgery. METHODS: The various stereotactic radiosurgery methods currently used (charged-particle ...
Hattori T T Department of Neurosurgery; Nagoya University; Nagoya, - - 1997
In order to build a data base for future comparison, we summarized the treatment results of cerebral arteriovenous malformation (AVM) patients in our hospital. Fifty five AVM patients who had been treated at Nagoya University Hospital from 1988 to 1995 were enrolled in the study. The patient characteristics were nearly ...
Thorp J A - - 1997
The objective of this paper is to determine the importance of perinatal factors predicting occurrence of severe intracranial hemorrhage (ICH) in premature newborns. A post-hoc analysis of a previously published randomized, double-blinded, prospective trial was performed. Logistic regression analysis was used to assess the importance of obstetrical variables and umbilical ...
Teo C - - 1997
Thirty patients between the ages of 7 months and 24 years were treated surgically for symptomatic Chiari II malformation at the Arkansas Children's Hospital. All patients underwent at least bony decompression of the malformation. Assessments of the patients' conditions were made at 6 weeks and 1 year after surgery, and ...
Chatani M - - 1997
PURPOSE: Clarification of the adverse effects of treatment interruption on the local control of early glottic carcinoma. PATIENTS AND METHODS: From May 1982 through February 1992, 273 patients with early glottic carcinoma (T1N0M0) were treated at this department. Of 253 patients administered 60 Gy in 30 fractions 77 patients had ...
Choi J U - - 1997
The present study was undertaken to reach a clearer understanding of the natural history of Moyamoya disease. Follow-up studies were performed in 88 patients with Moyamoya disease. They were divided into the ischemia group and the hemorrhage group. The activity of daily living (ADL) of each groups were followed up ...
Lee D W - - 1997
BACKGROUND: The purpose of this study was to document the long-term results of transcatheter embolotherapy of large pulmonary arteriovenous malformations (PAVMs). METHODS: From a data base of 221 consecutive patients with PAVMs treated by embolotherapy between 1978 and 1995, 45 patients with 52 PAVMs, supplied by feeding arteries 8 mm ...
McAllister B - - 1997
PURPOSE: Accelerated protons were used in an attempt to limit treatment-related morbidity in children with tumors in or near the developing brain, by reducing the integral dose to adjacent normal tissues. METHODS AND MATERIALS: Children treated with protons at Loma Linda University Medical Center between August 1991 and December 1994 ...
Medlock M D - - 1997
We reviewed 61 patients seen from 1975 to 1994 with a biopsy-confirmed optic chiasm astrocytoma or a characteristic clinical and imaging presentation. The mean age at diagnosis was 72 months, including 30 who were less than 5 years old. The mean tumor diameter at presentation was 31 mm among 54 ...
Han Y M - - 1997
PURPOSE: To evaluate the efficacy of selective arterial embolization in symptomatic renal angiomyolipoma (AML) and the change in angiomyogenic components during long-term follow-up after embolization. MATERIALS AND METHODS: Fourteen adult patients with symptomatic AMLs underwent 16 selective arterial embolizations. The embolic materials used were absolute alcohol with (n = 5) ...
Kim D S - - 1997
BACKGROUND: The treatment of cavernous malformations has been controversial. Some reports suggest that surgical resection of the lesion for the prevention of recurrent hemorrhage should not be considered because of low hemorrhagic risk. However, the role of surgery in management of cavernous malformations is undergoing reevaluation. The decision for surgical ...
Wikholm G G Section of Interventional Neuroradiology, Department of Radiology, Sahlgrenska University Hospital; Göteborg, - - 1997
Arteriovenous malformations of the brain are rare disorders. Embolisation has emerged as an effective treatment with an acceptable, low complication rate. Previously presented results are completed with results from 1994 to 1996. Ninety-six percent of the patients were treated with no or very minor sequelae resulting in total obliteration in ...
Mayer S K - - 1997
Adrenocortical neoplasms are rare in childhood and adolescence. The prognostic significance of tumor size, weight, and histological grade are still very much unclear. Eleven patients, (3 boys, 8 girls), with a median presentation age of 7 years (range, 0.8 to 16 years) were identified. Six presented with virilizing symptoms, two ...
Zingale A - - 1997
Six very elderly patients (mean of age: 85 years with range from 80 to 95 years) with mean GCS = 12 and mean clinical grade = 2.5 affected by traumatic chronic subdural hematoma (CT mean maximum thickness = 2.8 +/- 0.46 cm with midline shift = 1.56 +/- 0.48 cm ...
Tanaka A - - 1997
BACKGROUND: We examined the cerebral blood flow (CBF) and intracranial pressure (ICP) in 15 patients with chronic subdural hematomas to clarify the clinical pathophysiology of this disorder. METHODS: All patients had hemiparesis and/or mental disturbance, including confusion or lethargy, and demonstrated either midline shift or herniation on computed tomography (CT) ...
Schaller C - - 1997
OBJECTIVE: A consecutive series of microsurgically treated small arteriovenous malformations (AVMs), up to 3 cm in diameter, which are theoretically ideal candidates for radiosurgery or embolization, is described. We intended to elucidate the safety and efficacy of the microsurgical removal of AVMs, as compared with the results for radiosurgery and ...
Longstreth G F - - 1997
OBJECTIVES: Population-based data on the epidemiology and outcome of patients hospitalized with acute lower gastrointestinal hemorrhage (ALGIH) are lacking. This survey of the incidence, etiology, therapy, and long-term outcome of patients with ALGIH was conducted in a defined population. METHODS: In a large health maintenance organization, discharge data and colonoscopy ...
Woo C - - 1997
PURPOSE: Starting in 1992, we began using a stereotactic radiosurgical (SRS) boost for the treatment of medulloblastomas. Four patients ranging in age from 7 to 42 years old have since been treated and are the subject of this retrospective study. METHODS AND MATERIALS: All patients were initially treated with a ...
Sommaruga R - - 1997
Volume 62, no. 12, p. 4397: Figure 3 should appear as follows. FIG. 3 [This corrects the article on p. 4395 in vol. 62.].
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