The Neurosurgical Curmudgeon—Of Pygmalion, Galatea, and Aurochs Arteriovenous Malformation Associated Intracerebral Hematoma Scores, AUROC Analyses, Representations, and Reality

2016 ◽  
Vol 92 ◽  
pp. 544-545
Author(s):  
Charles David Hunt
2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Jun Takei ◽  
Toshihide Tanaka ◽  
Yohei Yamamoto ◽  
Akihiko Teshigawara ◽  
Satoru Tochigi ◽  
...  

Chronic encapsulated intracerebral hematoma is a unique type of intracerebral hematoma accompanied by a capsule that is abundant in fragile microvasculature occasionally causing delayed regrowth. A 37-year-old man who had undergone radiosurgery for an arteriovenous malformation (AVM) causing intracerebral hematoma in the left parietal lobe presented with headache, vomiting, and progressive truncal ataxia due to a cystic lesion that had been noted in the left thalamus, leading to progressive obstructive hydrocephalus. He underwent left frontal craniotomy via a transsylvian fissure approach, and the serous hematoma was aspirated. The hematoma capsule was easy to drain and was partially removed. Pathological findings demonstrated angiomatous fibroblastic granulation tissue with extensive macrophage invasion. The concentration of vascular endothelial growth factor (VEGF) was high in the hematoma (12012 pg/mL). The etiology and pathogenesis of encapsulated hematoma are unclear, but the gross appearance and pathological findings are similar to those of chronic subdural hematoma. Based on the high concentration of VEGF in the hematoma, expansion of the encapsulated hematoma might have been caused by the promotion of vascular permeability of newly formed microvasculature in the capsule.


2009 ◽  
Vol 151 (11) ◽  
pp. 1513-1515 ◽  
Author(s):  
Satoru Takeuchi ◽  
Yoshio Takasato ◽  
Hiroyuki Masaoka ◽  
Takanori Hayakawa ◽  
Naoki Otani ◽  
...  

1979 ◽  
Vol 51 (4) ◽  
pp. 546-551 ◽  
Author(s):  
Hideo Terao ◽  
Tomokatsu Hori ◽  
Masao Matsutani ◽  
Riki Okeda

✓ Two cases of cryptic vascular malformation that were not demonstrated by cerebral angiography were detected by computerized tomography. One of these patients had a cavernous angioma in the fourth ventricle with recurrent subarachnoid hemorrhages, and the other harbored a small arteriovenous malformation and intracerebral hematoma. The usefulness and limitations of computerized tomography in the identification of cryptic vascular malformations are discussed.


Neurosurgery ◽  
1989 ◽  
Vol 24 (2) ◽  
pp. 193-200 ◽  
Author(s):  
Ralf Steinmeier ◽  
Johannes Schramm ◽  
Hans-Georg Müller ◽  
Rudolf Fahlbusch

Abstract In a retrospective study of 48 patients who underwent elective surgery for cerebral arteriovenous malformations, a statistical analysis of demographic, clinical, and neuroradiological data was undertaken in order to discover the best predictors of operative morbidity. In addition, the predictive value of different clinical grading systems as applied to this series was compared. All patients had a computed tomographic scan and a positive angiogram before surgery. Complete resection was proven angiographically. The univariate Mann-Whitney-Wilcoxon rank sum test, the Fisher exact test, Spearman's rank correlation coefficient analysis, and multivariate logistic regression were used as statistical methods. Duration of surgery, the development, of either new deficits or an increase in the preoperative neurological signs immediately after surgery, and rehabilitation (as measured by the Karnofsky index) were taken as target variables for the difficulty of operation and for postoperative morbidity, respectively. The largest diameter of the nidus of the arteriovenous malformation, eloquence of the adjacent brain, and deep venous drainage showed the most consistent correlation with these target variables. Intracerebral hematoma and other single factors, such as the age of the patient or localization of the arteriovenous malformation did not affect the outcome. The clinical grading scale of Spetzler and Martin provided better prediction of surgical risks than other proposed systems.


1981 ◽  
Vol 55 (6) ◽  
pp. 976-978 ◽  
Author(s):  
Raeph Fardoun ◽  
Yves Adam ◽  
Philippe Mercier ◽  
Gilles Guy

✓ A case of a tentorial arteriovenous aneurysm is reported in a 54-year-old man. This malformation, fed by branches of the external carotid artery, was drained exclusively by a parieto-occipital cortical vein. The rupture of this vein was responsible for the presenting intracerebral hematoma.


1993 ◽  
Vol 33 (9) ◽  
pp. 638-642 ◽  
Author(s):  
Hiroshi SAKAIDA ◽  
Makoto SAKAKURA ◽  
Hiroshi TOCHIO ◽  
Kouji NAKAO ◽  
Akira TANIGUCHI ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document