The repair of dural venous sinus wounds by autogenous venorrhaphy

1971 ◽  
Vol 35 (4) ◽  
pp. 392-395 ◽  
Author(s):  
Berkley L. Rish
Keyword(s):  
Venous Sinus ◽  
New Technique ◽  
Surgical Experience ◽  
Content Type ◽  
Venous Sinuses ◽  
Dural Venous Sinus ◽  
A New Technique ◽  
Combat Casualties ◽  
Fine Print ◽  
Dural Venous Sinuses

✓ Military surgical experience with acute wounds of the dural venous sinuses is reviewed. A new technique, autogenous venorrhaphy, is described and reported as the method used in 10 Vietnam combat casualties.

En bloc petrosectomy using a Gigli saw for petroclival lesions

1995 ◽  
Vol 83 (3) ◽  
pp. 559-560 ◽  
Author(s):  
Tomio Sasaki ◽  
Makoto Taniguchi ◽  
Ichiro Suzuki ◽  
Takaaki Kirino
Keyword(s):  
Facial Nerve ◽  
Semicircular Canals ◽  
Petrous Bone ◽  
New Technique ◽  
En Bloc ◽  
Content Type ◽  
A New Technique ◽  
Transtentorial Approach ◽  
Fine Print

✓ The authors report a new technique for en bloc petrosectomy using a Gigli saw as an alternative to drilling the petrous bone in the combined supra- and infratentorial approach or the transpetrosal—transtentorial approach. It is simple and easy and avoids postoperative cosmetic deformity. This technique has been performed in 11 petroclival lesions without injuring the semicircular canals, the cochlea, or the facial nerve.

Pseudotumor cerebri syndrome: venous sinus obstruction and its treatment with stent placement

2003 ◽  
Vol 98 (5) ◽  
pp. 1045-1055 ◽  
Author(s):  
Brian K. Owler ◽  
Geoffrey Parker ◽  
G. Michael Halmagyi ◽  
Victoria G. Dunne ◽  
Verity Grinnell ◽  
...  
Keyword(s):  
Stent Placement ◽  
Pseudotumor Cerebri ◽  
Venous Sinus ◽  
Stent Insertion ◽  
Benign Intracranial Hypertension ◽  
Content Type ◽  
Venous Sinuses ◽  
Pseudotumor Cerebri Syndrome ◽  
New Treatment ◽  
Fine Print

Object. Pseudotumor cerebri, or benign intracranial hypertension, is a condition of raised intracranial pressure in the absence of a mass lesion or cerebral edema. It is characterized by headache and visual deterioration that may culminate in blindness. Pseudotumor cerebri is caused by venous sinus obstruction in an unknown percentage of cases. The purpose of this study was to investigate the role of cerebral venous sinus disease in pseudotumor cerebri and the potential of endoluminal venous sinus stent placement as a new treatment. Methods. Nine consecutive patients in whom diagnoses of pseudotumor cerebri had been made underwent examination with direct retrograde cerebral venography (DRCV) and manometry to characterize the morphological features and venous pressures in their cerebral venous sinuses. The cerebrospinal fluid (CSF) pressure was measured simultaneously in two patients. If patients had an amenable lesion they were treated using an endoluminal venous sinus stent. Five patients demonstrated morphological obstruction of the venous transverse sinuses (TSs). All lesions were associated with a distinct pressure gradient and raised proximal venous sinus pressures. Four patients underwent stent insertion in the venous sinuses and reported that their headaches improved immediately after the procedure and remained so at 6 months. Vision was improved in three patients, whereas it remained poor in one despite normalized CSF pressures. Conclusions. Patients with pseudotumor cerebri should be evaluated with DRCV and manometry because venous TS obstruction is probably more common than is currently appreciated. In patients with a lesion of the venous sinuses, treatment with an endoluminal venous sinus stent is a viable alternative for amenable lesions.

A new technique for exposure of the cervical spine laminae

2002 ◽  
Vol 96 (1) ◽  
pp. 122-126 ◽  
Author(s):  
Tateru Shiraishi
Keyword(s):  
Cervical Spine ◽  
New Technique ◽  
Diverse Range ◽  
Content Type ◽  
Spinous Processes ◽  
Technical Details ◽  
A New Technique ◽  
Fine Print

✓ The author describes a new technique for exposure of the cervical spine laminae in which the attachments of the semispinalis cervicis and multifidus muscles to the spinous processes are left untouched. It provides a conservative exposure through which a diverse range of posterior cervical surgeries can be performed. In contrast to conventional cervical approaches, none of the muscular attachments to the spinous processes is compromised. In this paper the author describes the technical details and discusses the applications of the procedure.

A subarachnoid screw for monitoring intracranial pressure

1973 ◽  
Vol 39 (3) ◽  
pp. 416-419 ◽  
Author(s):  
John K. Vries ◽  
Donald P. Becker ◽  
Harold F. Young
Keyword(s):  
Intracranial Pressure ◽  
Local Anesthesia ◽  
Subarachnoid Space ◽  
New Technique ◽  
Content Type ◽  
A New Technique ◽  
Fine Print

✓ A new technique for monitoring intracranial pressure is presented. It is based on a hollow screw in the skull whose tip projects through the dura into the subarachnoid space. The screw can be easily inserted under local anesthesia. Pressure is monitored isovolumetrically by connecting the screw to a transducer. The system can be calibrated in situ and has been successfully used in 56 patients during a 6-month period.

Retraction system for transsphenoidal surgery

1985 ◽  
Vol 62 (2) ◽  
pp. 307-309 ◽  
Author(s):  
Shigeaki Kobayashi ◽  
Kenichiro Sugita ◽  
Toshiki Takemae ◽  
Yoshio Tanizaki
Keyword(s):  
Transsphenoidal Surgery ◽  
The Self ◽  
Venous Sinus ◽  
Content Type ◽  
Tumor Bed ◽  
Tumor Tissues ◽  
Dural Venous Sinus ◽  
Diaphragma Sellae ◽  
Fine Print

✓ A retraction system has been developed for transsphenoidal surgery to use together with a conventional self-retaining speculum. The system comprises an attachment to the speculum, a self-retaining retractor, and a slim tapered brain spatula and pronged hook. The spatula or hook is secured with the self-retaining retractor and the attachment. The retractor can also be fixed to the Sugita multipurpose head frame. The system may be used to retract the bulging diaphragma sellae and tumor tissues, and to stop bleeding from the dural venous sinus or tumor bed, so the surgeon can continue the procedure with both hands.

Selective posterior rhizotomy for treatment of spasticity

1983 ◽  
Vol 58 (6) ◽  
pp. 895-899 ◽  
Author(s):  
Lauri V. Laitinen ◽  
Stefan Nilsson ◽  
Axel R. Fugl-Meyer
Keyword(s):  
General Anesthesia ◽  
Muscle Contractions ◽  
New Technique ◽  
Similar Technique ◽  
Good Reduction ◽  
Content Type ◽  
Tonic Muscle ◽  
A New Technique ◽  
Selective Posterior Rhizotomy ◽  
Fine Print

✓ In 1976, Fasano, et al., described a new technique of posterior rhizotomy for treatment of spasticity. They stimulated electrically fascicles of the posterior roots in spastic patients and found that some fascicles responded to stimulation with tonic muscle contractions. They cut these fascicles, preserving those with a weaker or no reaction. The present authors have used a fairly similar technique in the treatment of eight patients with spasticity of the legs and one patient with spasticity of the arm: all fascicles of the posterior roots T12-S1 and C6–8, respectively, were stimulated electrically during surgery under general anesthesia. Approximately 60% to 80% of the fascicles responded to stimulation with tonic muscle jerks, and only these fascicles were cut. All nine patients showed a good reduction of spasticity. The residual cutaneous and joint sensation remained unchanged. Motility of the limbs usually improved.

scholarly journals Mechanical and structural characterisation of the dural venous sinuses

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Darragh R. Walsh ◽  
James J. Lynch ◽  
David T. O’ Connor ◽  
David T. Newport ◽  
John J. E. Mulvihill
Keyword(s):  
Structural Analysis ◽  
Venous Blood ◽  
Venous Sinus ◽  
Anatomical Location ◽  
Mechanical Stiffness ◽  
Structural Characterisation ◽  
Venous Sinuses ◽  
Integral Role ◽  
Dural Venous Sinus ◽  
Dural Venous Sinuses

AbstractThe dural venous sinuses play an integral role in draining venous blood from the cranial cavity. As a result of the sinuses anatomical location, they are of significant importance when evaluating the mechanopathology of traumatic brain injury (TBI). Despite the importance of the dural venous sinuses in normal neurophysiology, no mechanical analyses have been conducted on the tissues. In this study, we conduct mechanical and structural analysis on porcine dural venous sinus tissue to help elucidate the tissues’ function in healthy and diseased conditions. With longitudinal elastic moduli values ranging from 33 to 58 MPa, we demonstrate that the sinuses exhibit higher mechanical stiffness than that of native dural tissue, which may be of interest to the field of TBI modelling. Furthermore, by employing histological staining and a colour deconvolution protocol, we show that the sinuses have a collagen-dominant extracellular matrix, with collagen area fractions ranging from 84 to 94%, which likely explains the tissue’s large mechanical stiffness. In summary, we provide the first investigation of the dural venous sinus mechanical behaviour with accompanying structural analysis, which may aid in understanding TBI mechanopathology.

Endocranial Vascular Patterns in a Familial Rabbit Model of Coronal Suture Synostosis

2001 ◽  
Vol 38 (6) ◽  
pp. 615-621 ◽  
Author(s):  
Annie M. Burrows ◽  
Valerie D. O'Loughlin ◽  
Mark P. Mooney ◽  
Timothy D. Smith ◽  
H. Wolfgang Losken ◽  
...  
Keyword(s):  
Rabbit Model ◽  
Venous Sinus ◽  
Secondary Response ◽  
Intracranial Volume ◽  
Coronal Suture ◽  
Venous Sinuses ◽  
New Zealand White Rabbits ◽  
Dural Venous Sinus ◽  
Altered Form ◽  
Dural Venous Sinuses

Objective: The present study investigates the potential relationship between craniosynostosis and any changes in endocranial vasculature. The hypothesis that crania from rabbits with familial, nonsyndromic coronal suture synostosis and crania from rabbits with experimental immobilization of the coronal suture are associated with altered form of the middle meningeal vessels and dural venous sinuses is tested. Design: Silicone rubber endocasts from 14 adult New Zealand white rabbits (Oryctolagus cuniculus) with familial nonsyndromic coronal suture synostosis (five with bilateral coronal suture synostosis and nine with unilateral coronal suture synostosis) were made to assess middle meningeal vessel and dural venous sinus form. For comparative purposes, endocasts were made from 25 rabbits with normal, patent coronal sutures and 10 rabbits with experimental immobilization of the coronal suture. Impressions of the dural venous sinuses were assessed for depth and width. The area of the confluens of sinuses was also assessed. Impressions of the middle meningeal vessels were assessed for depth, width, and degree of convolution. For width of the dural venous sinuses and area of the confluens of sinuses, comparisons among groups were made with a one-way analysis of variance (ANOVA). For depth of the dural venous sinuses and impressions of the middle meningeal vessels, comparisons among groups were made using a Kruskal-Wallis one-way ANOVA. Results: Crania with familial coronal suture synostosis had significantly (p < .05) reduced posterior dural venous sinus dimensions when compared with both crania from rabbits with experimental immobilization of the coronal suture and rabbits with normal coronal sutures. Crania with both coronal suture synostosis and experimental immobilization had significant increases in dimensions of the middle meningeal vessels relative to normal crania. In addition, casts from rabbits with unicoronal suture synostosis showed marked asymmetry in the dural venous sinuses. Conclusions: These results support the hypothesis that craniosynostosis is associated with alterations in endocranial vasculature. These changes are most likely a secondary response to synostosis rather than a causal factor and may reflect increased intracranial pressure, decreased intracranial volume, and local accumulations and reductions of cerebrospinal fluid in the posterior region of the skull and immediately deep to the coronal suture.

Anchoring of deep brain stimulation electrodes using a microplate

1996 ◽  
Vol 85 (6) ◽  
pp. 1181-1183 ◽  
Author(s):  
Jacques Favre ◽  
Jamal M. Taha ◽  
Timothy Steel ◽  
Kim J. Burchiel
Keyword(s):  
Deep Brain Stimulation ◽  
Subthalamic Nucleus ◽  
Brain Stimulation ◽  
Movement Disorders ◽  
New Technique ◽  
Content Type ◽  
A New Technique ◽  
Fine Print ◽  
Deep Brain

✓ The authors report a new technique to anchor deep brain stimulation electrodes using a titanium microplate. This technique has been safely used to secure 20 quadripolar deep brain stimulation electrodes implanted for movement disorders (18 electrodes) and pain (two electrodes). Twelve electrodes were implanted in the thalamus, four in the subthalamic nucleus, and four in the pallidum. No electrode migration or rupture occurred, and all electrodes have been shown to work properly after internalization of the system.

Ventriculofiberscope: a new technique for endoscopic diagnosis and operation

1973 ◽  
Vol 38 (2) ◽  
pp. 251-256 ◽  
Author(s):  
Takanori Fukushima ◽  
Buichi Ishijima ◽  
Kimiyoshi Hirakawa ◽  
Norio Nakamura ◽  
Keiji Sano
Keyword(s):  
Ventricular System ◽  
Endoscopic Diagnosis ◽  
New Technique ◽  
Content Type ◽  
A New Technique ◽  
Fine Print

✓ The authors report a new ventriculofiberscope useful in both diagnosing and operating on lesions of the ventricular system. The technique and its advantages are illustrated in representative cases.

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