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At least 523 records · Page 29Linked to original sources

Dural arteriovenous malformation of the transverse sinus with sinus occlusion: report of a case.

We report a case of dural arteriovenous malformation (AVM) of the transverse sinus with sinus occlusion. This 49-year-old man developed right parietal lobe dysfunction with acute onset. Computed tomography and magnetic resonance imaging (MRI) showed a non-hemorrhagic venous infarct in the subcortical white matter of the right parietal lobe, and diffusely dilated subcortical veins. Thrombosis of the right internal jugular bulb was also revealed on MRI. Cerebral angiography showed a dural AVM in the posterior fossa with occlusion of the right transverse sinus and retrograde venous drainage into the superior sagittal sinus, causing diffuse engorgement of the superficial cortical and the deep intramedullary veins. The focal neurologic deficits in this case were due to a non-hemorrhagic venous infarct in the subcortical white matter of the right parietal lobe secondary to retrograde cortical venous drainage.

Dura Mater↗

[Early results of the treatment of chronic sinusitis with functional endoscopic sinus surgery].

In recent years FESS has become a gold standard in the treatment of chronic sinusitis. The results of the treatment depends to a high degree on the thorough preoperative assessment and qualification for surgery, as well as applied criteria reported for success. The aim of the study was to evaluate the early results of FESS in patient with chronic sinusitis after 3 to 12 month of follow up focusing attention on some prognostic factors. In the group 52 patients who underwent FESS in 2003 due to chronic sinusitis particular attention to standardization of pre and postoperative evaluation was paid. Meticulous analysis of the data from SNAQ 11 (sino nasal assessment questionnaire) questionnaire for subjective complaints evaluation, and assessment of the extent of disease according to Friedman, Kennedy and Levine scale revealed no correlation between extent of disease and results of treatment. It was demonstrated, that there is the statistically significant correlation between extent of sinus disease on CT scans and the duration of disease. It applies to the first tree years of disease.

Chronic Disease↗

Maxillary sinus augmentation using granular calcium sulfate (surgiplaster sinus): radiographic and histologic study at 2 years.

The main goal of sinus augmentation is the formation of vital bone to allow tissue integration of endosseous implants to support prosthetic rehabilitation. The aim of the present investigation was to evaluate the radiographic and histologic results when granular medical-grade calcium sulfate hemihydrate was used as a grafting material in sinuses. Forty implants plus grafting material were placed in 10 patients, representing 15 sinuses, using a one-stage technique. Radiographs were taken prior to sinus augmentation, monthly until 6 months postoperatively, 9 and 12 months after implant placement, and annually thereafter. Bone biopsies were harvested from all patients for histologic and histomorphometric evaluation.

Alveolar Process↗

Association between immediate termination of supraventricular tachycardia by carotid sinus pressure and carotid sinus hypersensitivity.

An association between rapid reversion of supraventricular tachycardia by carotid sinus stimulation and carotid sinus reflex hypersensitivity during sinus rhythm is described in a 55-year-old patient. The findings indicate that a high level of vagal tone facilitates vagal maneuvers in terminating some supraventricular tachyarrhythmias. The briskness of the response during tachycardia may also be a marker for underlying carotid sinus hypersensitivity.

Carotid Sinus↗

Changes in the pacemaker function of the sinus node after closure of atrial septal defect. Temporary and stable iatrogenic sick sinus syndrome.

The alterations in the clinical symptoms and the pacemaker function of the sinus node following open heart operation were studied in 26 patients suffering from atrial septal defect. The most characteristic electrophysiological change was the prolongation of the sinus node recovery time as consequence of surgical repair of the atrial septal defect. The clinical symptoms of the sick sinus syndrome could be detected in all 26 cases after the open heart surgery. In 16 patients the symptoms of iatrogenic sick sinus syndrome (SSS) were only transitory, while in 10 patients a stable iatrogenic SSS developed after the operation. In the basis of these data the pathological mechanism of the iatrogenic SSS is discussed.

Adolescent↗

[Digoxin and sinus node function in the sick-sinus syndrome (author's transl)].

In 12 patients with sinus node syndrome, the influence of Digoxin on the sinus-node function was examined. After having determined the sinus-node recovery time (SNRT), the calculated sinuatrial conduction time (SACT), and the mean cycle length, 1.2 mg Digoxin were applied intravenously; 45 minutes later the above mentioned determinations were repeated. Before applying Digoxin, the mean value of the SNRT was 1665.8 +/- 1381.5 ms, after Digoxin it was 1372.1 +/- 546.1 ms; there was no statistical significance. In regard of the SACT the values were 95.9 +/- 38.6 ms before and 125.0 +/- 31.9 ms after Digoxin (p less than 0.05). The mean cycle length remained almost unchanged (841 +/- 113.2 ms before and 847 +/- 138.4 ms after Digoxin, no significance). Thus it is to be regarded as the clinical therapeutic consequence that in these patients the glycoside application in absence of syncopes or equivalents can be administered in most of the cases without previous pacemaker-implantation. In special cases, however, mainly if there are signs of greater disturbances of the sinus node function and of the SACT, electrophysical functional-analytic examination previous to the Digoxin long-term therapy should be performed.

Adult↗

[A case report of superior sagittal sinus thrombosis--evaluation of computed tomographic findings in diagnosis and comprehension of this sinus thrombosis (author's transl)].

A case of superior sagittal sinus thrombosis was reported. A 23-year-old male was admitted to our clinic on August 16, 1978, because of generalized convulsive seizures. he had complained of severe headache and high fever for about 7 days before admission, and on admission he was in slightly drowsy state. At that time, bilateral choked discs and bilateral abducens pareses were found without any other neurological deficit. CT scan on his 1st hospital day revealed only slight compression of the ventricular system without any midline shift. On the 2nd hospital day, he developed sudden left hemiparesis, but his level of consciousness did not deteriorate as that of the previous day, demonstrating clear CSF by lumbar puncture. Right CAG on August 21 revealed delayed circulation, poor-filling of the cortical veins, and narrow superior sagittal sinus showing zigzag shaped margin. CT scan on August 22 showed multiple irregular high dense foci mainly in both parietal lobes and the shift to the left of the ventricular system. Besides, on enhanced CT scan, the so-called "empty triangle" sign was revealed with gyral enhancement. Although an increase of the shift of the ventricular system was demonstrated by the follow-up CT scans, he gradually improved and external decompression was necessitated no longer. He was discharged with slight weakness of the left upper limb after superior sagittal sinus showing good-filling on right CAG performed on September 27 and had been identified. As a result, it was confirmed that in case sinus thrombosis is doubted, follow-up study by CT scan would be significant for the choice of treatments as well as for its diagnosis at its each stage.

Adult↗

Percutaneous transvenous embolization through the thrombosed sinus in transverse sinus dural fistula.

Each of two patients presented with a dural arteriovenous fistula involving the transverse sinus. The sinus was thrombosed proximal and distal to the dural arteriovenous fistula with the venous drainage being retrograde through cortical veins. An ipsilateral percutaneous transjugular approach was used in both cases and allowed recanalization of the thrombosed sinus and embolization of the dural arteriovenous fistula with coils. Complete cure was achieved in one patient and 95% reduction in arteriovenous shunting including elimination of the cortical venous reflux in the other. This technique avoided surgical exposure of the sinus.

Aged↗

The sphenoid sinus, the neglected nasal sinus.

O. E. Van Alyea stated that "The sphenoid sinus is the most neglected of the nasal sinuses." It is neglected by disease because of its location, by the physician because of its subtle symptoms when diseased, and the surgeon because of its inaccessability. An accurate knowledge and understanding of the anatomy of the area help the physician diagnose and manage problems in this area. Eleven cases are used to illustrate the wide spectrum of pathologic conditions in and about the sphenoid sinus. Only two of the patients were asymptomatic. All of the others had deep-seated, retrobulbar headaches. Eight of 11 patients had cranial nerve involvement. The optic nerve was involved in six cases. The abducens nerve was involved in five of 11 cases and the maxillary nerve in four of 11 cases. Initial roentgenographic examination must include lateral and submental vertex views. The newer techniques of angiography, polytomography, and computerized tomography aid in determining the extent of the pathologic condition and the treatment approach.

Aged↗

Aberrant inferior petrosal sinus: unusual transvenous approach to the cavernous sinus.

Two patients with vascular lesions of the cavernous sinus (CS) undergoing endovascular management are reported. During transvenous embolization an unusually low termination of the inferior petrosal sinus (IPS) was observed. In both patients, we were able to catheterize the CS using this aberrant venous route. Knowledge of this variant can be crucial for a successful transvenous approach and treatment of vascular lesions involving the cavernous sinus.

Cavernous Sinus↗

Cavernous sinus thrombosis: a rare complication of sinusitis.

Intracranial complications of sinusitis are infrequent since the advent of antibiotics, and furthermore the prognosis is improved by medical therapy. We have seen a patient with an intracranial complication of sinus infection that had a history of frontal bone trauma five years ago. Then following an upper respiratory tract infection, headache, bilateral periorbital pain and swelling, spiking fever, neck stiffness, bilateral chemosis and ophthalmoplegy developed. Cavernous sinus thrombosis was diagnosed clinically and high doses of I.V. antibiotics were started promptly. The patient's condition improved in the first week of her admission. She was discharged three weeks later, without any surgical intervention. Two-year follow up showed no cranial nerve palsies or any neurologic deficiencies. A good result has been achieved by immediate medical measures.

Cavernous Sinus↗

Orbital phlebography. IV. The carernous sinuses and adjacent venous sinuses of the skull base.

Frontal phlebography has been used to examine the cavernous sinuses and adjacent basal venous sinuses of the skull. The method has proved to be simple and effective. The normal phlebographic anatomy of the basal sinuses and their drainage has been revised in a material of 26 cases. A normal range for the transverse diameter of the pituitary fossa has been established.

Cavernous Sinus↗

Chronic sinusitis and woodworking as risk factors for cancer of the maxillary sinus in northeast Japan.

In the period 1983 to 1985, 66 patients presented to six Japanese university hospitals with squamous cell carcinoma of the maxillary sinus. Using self-administered questionnaires, a case-control study was conducted to examine history of nasal diseases, occupational exposures, and other possible risk factors for this disease. For each patient, two controls were selected from the general population, matched to the patient by sex, age (+/- 5 years), and district of residence. A history of chronic sinusitis was associated with a 2.3-fold increase in risk (p = 0.05). A high relative risk was also observed in males with an occupational history of woodworking or joinery, particularly when these jobs involved sanding or lathing practices (RR = 7.5, p = 0.02). No association between cigarette smoking and maxillary sinus cancer was observed in this study and no evidence was found that indoor air pollution in the home is involved in cancer development.

Adult↗

An endoscopic and tomographic evaluation of patients with sinusitis after endoscopic sinus surgery and Caldwell-Luc operation: a comparative study.

To evaluate the outcome of surgery using objective methods in patients with sinusitis after endoscopic sinus surgery (ESS) and Caldwell-Luc operation, we randomly selected 37 Caldwell-Luc-operated and 40 ESS-applied cases. Selected patient groups were assessed and compared by endoscopic examination and computed tomography (CT). CT was found to be normal in 12% of Caldwell-Luc-operated sides in comparison to 75% of ESS-applied sides. Endoscopy revealed a patency rate of the windows as 48% in Caldwell-Luc-operated and 86.7% in ESS-applied sides. Fibrosis and abnormal bony changes of the maxillary sinus were encountered in more than half of Caldwell-Luc-operated cases. In conclusion, ESS has a much higher rate of cure compared to the Caldwell-Luc operation if subjective and objective evaluation methods (CT and endoscopy) are applied.

Adolescent↗

Combined treatment of a dural arteriovenous malformation of the lateral sinus using transarterial and direct lateral sinus embolisation.

An 80-year-old man presented with a dural arteriovenous malformation (DAVM) involving the left lateral sinus. A carotid angiogram showed the lateral sinus to be occluded proximally and distally, with unusual retrograde venous outflow from the residual sinus to the cortical veins, including a dilated vein of Labbé. Single photon emission computed tomography showed reduced left frontal and temporal cerebral blood flow. We concluded that the risk of bleeding from the DAVM was high and that the patient needed to be treated immediately. However, his age made surgical removal of the DAVM hazardous and we therefore chose to treat him by transarterial and direct lateral sinus embolisation via a burr hole.

Aged↗

Coronary sinus long sheath catheter system: a new device for transfemoral coronary sinus catheterization.

Coronary sinus catheterization requires an approach into the right atrium via the superior vena cava. This study contains information regarding a coronary sinus long sheath catheter (CS sheath) system, a new device for cannulation of the coronary sinus through the femoral approach. This method was successful in 96.9% of the cases attempted. Furthermore, cannulation using the CS sheath allowed us not only to insert several catheters into the coronary sinus for clinical use and investigation, but also to access the great and small cardiac veins easily and selectively.

Cardiac Catheterization↗