Fibrinolytic enzyme in the lining walls of chronic subdural hematoma

1978 ◽  
Vol 48 (2) ◽  
pp. 197-200 ◽  
Author(s):  
Haruhide Ito ◽  
Toshio Komai ◽  
Shinjiro Yamamoto
Keyword(s):  
Blood Plasma ◽  
Outer Membrane ◽  
Dura Mater ◽  
Subdural Hematoma ◽  
Chronic Subdural Hematoma ◽  
Fibrinolytic Enzyme ◽  
Inner Membrane ◽  
Content Type ◽  
Fibrin Plate ◽  
Fine Print

✓ Active plasmin, available plasmin, and total plasminogen were measured by Enzodiffusion fibrin plate techniques in 11 cases and level of tissue activator and tissue fibrinolytic activities in another 11 cases with chronic subdural hematoma. The values were too small to be measured in some instances. Anti-plasmin in the hematoma was less than in the blood plasma. The outer membrane contained about three times more tissue activator than the dura mater, although the inner membrane contained none. Increased tissue activator, which exudes from the extremely vascular outer membrane, transforms plasminogen into plasmin in subdural hematoma, so that plasmin breaks down fibrin and fibrinogen and induces continuous hemorrhage.

Middle meningeal artery embolization for refractory chronic subdural hematoma

2000 ◽  
Vol 93 (4) ◽  
pp. 686-688 ◽  
Author(s):  
Shinya Mandai ◽  
Masaru Sakurai ◽  
Yuzo Matsumoto
Keyword(s):  
Liver Cirrhosis ◽  
Subdural Hematoma ◽  
Therapeutic Approach ◽  
Chronic Subdural Hematoma ◽  
Middle Meningeal Artery ◽  
Artery Embolization ◽  
Content Type ◽  
Meningeal Artery ◽  
Fine Print

✓ The authors present a case of refractory chronic subdural hematoma (CSH) in a 59-year-old man with coagulopathy due to liver cirrhosis. The patient was successfully treated by embolization of the middle meningeal artery after several drainage procedures. This new therapeutic approach to recurrent CSH is discussed.

Chronic subdural hematoma simulating transient cerebral ischemic attacks

1975 ◽  
Vol 42 (1) ◽  
pp. 101-103 ◽  
Author(s):  
Eldad Melamed ◽  
Slvan Law ◽  
Avinoam Reches ◽  
Abraham Sahar
Keyword(s):  
Subdural Hematoma ◽  
Clinical Picture ◽  
Chronic Subdural Hematoma ◽  
Sensory Deficit ◽  
Transient Ischemic Attacks ◽  
Neurological Manifestations ◽  
Content Type ◽  
Pathophysiological Mechanisms ◽  
Cerebral Ischemic ◽  
Fine Print

✓ A patient is presented in whom chronic subdural hematoma simulated transient ischemic attacks. The neurological manifestations were those of recurrent, transient episodes of expressive dysphasia preceded by focal sensory deficit. Various pathophysiological mechanisms which could have caused the unusual clinical picture are briefly considered.

Chronic subdural hematoma in infancy

1990 ◽  
Vol 73 (2) ◽  
pp. 201-205 ◽  
Author(s):  
Nobuhiko Aoki
Keyword(s):  
Computerized Tomography ◽  
Subdural Hematoma ◽  
Treatment Protocol ◽  
Chronic Subdural Hematoma ◽  
Neurological Deficits ◽  
Acute Subdural Hematoma ◽  
Hemorrhagic Diathesis ◽  
Content Type ◽  
Fine Print ◽  
Subdural Tapping

✓ The cases of 30 infants with chronic subdural hematoma treated surgically between 1978 and 1987 (after the introduction of computerized tomography) were reviewed. This series was limited to infants presenting with increased intracranial pressure, neurological deficits, or developmental retardation. Nineteen patients were male and 11 were female, ranging in age from 1 to 14 months (average 6.1 months). The surgical treatment was initiated with percutaneous subdural tapping which was repeated periodically, if indicated, for 2 weeks. If the patients failed to respond to subdural tapping, subdural-peritoneal shunting was installed. The follow-up periods were from 3 months to 9 years 8 months (average 4 years 10 months). Computerized tomography at that time disclosed disappearance or minimal collection of subdural fluid in 28 cases (93%) and a significant collection (> 5 mm) in two (7%). Neurological examination revealed that the patients were “normal” in 17 cases (57%), “mildly or moderately disabled” in nine (30%), and “severely disabled” in four (13%). The majority of disabled patients had lesions secondary to infantile acute subdural hematoma, child abuse, or hemorrhagic diathesis. These results indicate that the treatment protocol in the present series is acceptable for the elimination of subdural hematoma. Together, early diagnosis and treatment of the etiological conditions causing the lesion are indispensable for obtaining a satisfactory neurological outcome.

Brain scans and echoencephalography in the diagnosis of chronic subdural hematoma

1974 ◽  
Vol 40 (3) ◽  
pp. 347-350 ◽  
Author(s):  
Sheldon R. Hurwitz ◽  
Samuel E. Halpern ◽  
George Leopold
Keyword(s):  
Cerebral Angiography ◽  
Subdural Hematoma ◽  
Chronic Subdural Hematoma ◽  
Content Type ◽  
Brain Scans ◽  
Subdural Hematomas ◽  
Fine Print

✓ Eighteen patients with chronic subdural hematomas were studied by both brain scans and echoencephalography. All cases were verified by cerebral angiography. Brain scanning was accurate in predicting hematomas in 93% of the cases, and echoencephalography in 44%. When hematomas were bilateral or when frontal clots caused no shift in the diencephalic midline, the routine echoencephalogram often was negative. The two procedures are complementary, and serial studies may be helpful in the study of changing clinical situations.

Chronic subdural hematoma presenting as spontaneous subarachnoid hemorrhage

1985 ◽  
Vol 63 (5) ◽  
pp. 691-692 ◽  
Author(s):  
Zbigniew Kotwica ◽  
Jerzy Brzeziński
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Subdural Hematoma ◽  
Chronic Subdural Hematoma ◽  
Clinical Findings ◽  
Content Type ◽  
Acute Subarachnoid Hemorrhage ◽  
Spontaneous Subarachnoid Hemorrhage ◽  
Fine Print

✓ Six cases of chronic subdural hematoma presenting with the clinical findings of acute subarachnoid hemorrhage are reported. No systemic or focal cause for the bleeding was found, and possible mechanisms are discussed.

Experimental chronic subdural hematoma in mice

1987 ◽  
Vol 67 (5) ◽  
pp. 710-716 ◽  
Author(s):  
Hisashi Aikawa ◽  
Kinuko Suzuki
Keyword(s):  
Body Weight ◽  
Blood Vessels ◽  
Subdural Hematoma ◽  
Intraperitoneal Injection ◽  
Intraventricular Hemorrhage ◽  
Chronic Subdural Hematoma ◽  
Content Type ◽  
Single Intraperitoneal Injection ◽  
Thin Walled ◽  
Fine Print

✓ A new experimental model of chronic subdural hematoma in mice is described. A single intraperitoneal injection of 6-aminonicotinamide (25 mg/kg body weight) on the 5th postnatal day induced hydrocephalus in mice with almost 100% success. Approximately 60% of the mice spontaneously developed intracranial hemorrhage 20 days after the injection. About 1 week after the hemorrhage, a lens-shaped or spherical subdural hematoma was observed, accompanied by marked dilatation of the lateral ventricles and intraventricular hemorrhage. Histological examination revealed that the hematoma contained well-organized outer and inner membranes. Fresh hemorrhage surrounded by many hemosiderin-laden macrophages was seen at the margin of the hematoma adjacent to the organizing outer membrane, in which many fibroblasts and blood vessels were noted. The inner membrane of the hematoma was made up of several tiers of flattened cells with thin-walled blood vessels. The gross morphology and histology of these hematomas closely resembled those of human chronic subdural hematoma.

Production of clinical form of chronic subdural hematoma in experimental animals

1972 ◽  
Vol 37 (5) ◽  
pp. 552-561 ◽  
Author(s):  
Satoru Watanabe ◽  
Hironobu Shimada ◽  
Shozo Ishii
Keyword(s):  
Cerebrospinal Fluid ◽  
Subdural Hematoma ◽  
Chronic Subdural Hematoma ◽  
Subdural Space ◽  
Clinical Form ◽  
Content Type ◽  
Experimental Animals ◽  
Fine Print

✓ A method for producing a clinical form of experimental chronic subdural hematoma is reported. When blood is mixed with cerebrospinal fluid and incubated, a peculiar clot is formed which, when inoculated into the subdural space of dogs or monkeys, grows gradually. Histologically the capsule of the hematoma is comparable to that seen in human chronic subdural hematoma. In some animals progressive hemiparesis develops.

Association between a black band on the inner membrane of a chronic subdural hematoma on T2*-weighted magnetic resonance images and enlargement of the hematoma

2003 ◽  
Vol 99 (5) ◽  
pp. 824-830 ◽  
Author(s):  
Toshio Imaizumi ◽  
Yoshifumi Horita ◽  
Toshimi Honma ◽  
Jun Niwa
Keyword(s):  
Surgical Treatment ◽  
Magnetic Resonance ◽  
Chronic Subdural Hematoma ◽  
Magnetic Resonance Images ◽  
Mr Images ◽  
Inner Membrane ◽  
Content Type ◽  
Black Band ◽  
Fine Print

Object. The cause and indication for enlargement of chronic subdural hematomas (CSDHs) have remained unresolved. The authors observed a black band on the inner membrane of a CSDH on T2*-weighted magnetic resonance (MR) images obtained in patients with symptoms. After surgical treatment, the band disappeared. The T2*-weighted sequence of MR imaging is an excellent diagnostic tool for detecting ferromagnetic substances, but it is rarely performed in cases of a CSDH. The authors speculate that the black band may be associated with the development of CSDH. Methods. To investigate how the black band observed on T2*-weighted MR images contributes to the development of a CSDH, 59 lesions in 50 patients with CSDH (41 men and nine women, mean age 70 ± 11 years [range 48–93 years]) were investigated prospectively. The incidence of black bands on the first T2*-weighted MR image obtained in patients with symptomatic CSDH was 97% (31 of 32 CSDHs), which was significantly higher than that associated with asymptomatic CSDH (11% [three of 27 CSDHs], p < 0.001). The black bands associated with symptomatic CSDH disappeared soon after surgical treatment in 31 CSDHs and became fainter in another. In two instances the CSDH recurred with reappearance of the band. Twenty-four of 27 asymptomatic CSDHs had no accompanying black band. Follow-up MR images demonstrated a later formation of bands in two of 24 asymptomatic CSDHs that enlarged to symptomatic size. Logistic regression analysis revealed that the heterogeneity and thickness of the CSDH on computerized tomography scans were independently and significantly associated with the black band. Conclusions. The dynamics of the black band may depend on the enlargement or shrinkage of the CSDH.

Two fluid-blood density levels in chronic subdural hematoma

1992 ◽  
Vol 77 (2) ◽  
pp. 310-311 ◽  
Author(s):  
Naoya Hashimoto ◽  
Takehiko Sakakibara ◽  
Kazuaki Yamamoto ◽  
Masahito Fujimoto ◽  
Tarumi Yamaki
Keyword(s):  
Computerized Tomography ◽  
Subdural Hematoma ◽  
Chronic Subdural Hematoma ◽  
Content Type ◽  
Blood Density ◽  
Two Fluid ◽  
Tomography Scan ◽  
Fine Print ◽  
Fluid Blood

✓ The case of a chronic subdural hematoma is presented in which the computerized tomography scan showed two parallel fluid-blood density levels. The authors emphasize the importance of this finding in the management of such cases.

Definitive treatment of chronic subdural hematoma by twist-drill craniostomy and closed-system drainage

1977 ◽  
Vol 46 (2) ◽  
pp. 220-226 ◽  
Author(s):  
Kamran Tabaddor ◽  
Kenneth Shulman
Keyword(s):  
Closed System ◽  
Subdural Hematoma ◽  
Patient Population ◽  
Chronic Subdural Hematoma ◽  
Definitive Treatment ◽  
Twist Drill ◽  
Simple Method ◽  
Content Type ◽  
Theoretical Considerations ◽  
Fine Print

✓ A simple method of bedside twist-drill craniostomy and closed-system drainage for evacuation of chronic and subacute subdural hematoma is introduced. The principles and theoretical considerations that form the basis for this technique are discussed. The technique was used in 21 patients with chronic or subacute subdural hematoma; it has produced results superior to those of the conventional methods used in our patient population. Possible mechanisms responsible for the better results with the simple twist-drill closed-system drainage are described.

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