scholarly journals Inadvertent Intra-Arterial Contrast Agent Injection Mimicking Bilateral Occlusion of the Internal Carotid Arteries in a Patient With Suspected Stroke on Maximum-Slope, Nondeconvolution Perfusion Computed Tomography

Stroke ◽  
2009 ◽  
Vol 40 (3) ◽  
Author(s):  
Dominik Morhard ◽  
Hannah Pellkofer ◽  
Maximilian F. Reiser ◽  
Birgit Ertl-Wagner
2021 ◽  
Vol 29 (1) ◽  
pp. 13-20
Author(s):  
Olesya V. Zeleva ◽  
Pavel M. Zelter ◽  
Alexander V. Kolsanov ◽  
Yuliya S. Pyshkina ◽  
Evgeniya K. Kramm

Detailed knowledge of anatomy and topography of sphenoidal and maxillary sinuses may help to improve surgical approaches, better predict postoperative complications, increase safety of surgical techniques, and, consequently, avoid inflammatory reactions. This also helps to determine the cause of inflammatory changes. Aim. This study aimed to analyze structural types of sphenoidal and maxillary sinuses by examining computed tomography (CT) images of the paranasal sinuses, to determine the frequency of the interposition of the internal carotid artery, and to identify sex- and age-related peculiarities and regularities in the extent of pneumatization and contents in the sphenoidal and maxillary sinuses. Materials and Methods. CT images of 50 patients who were receiving treatment in the otolaryngology unit of the Clinic of SamSMU were analyzed. Toshiba Aquilion 32 CT scanner was used. Results. Patients were divided into three groups according to Hamberger classification of the pneumatization of the sphenoidal sinus by taking into account the topographic relation to the sella turcica using CT data: the presellar type was identified in 10% (n=5) of the cases, the sellar type in 22% (n=11), and the postsellar type in 68% (n=34). The postsellar type is the most common structural type of the sphenoidal sinus. Moreover, patients were divided into groups by the type of pneumatization of the maxillary sinuses. No correlation was found between the pneumatizations of sphenoidal and maxillary sinuses. Moderate negative correlation was observed between age and structural type of the sinuses, and moderate positive correlation was found between the contents of the sinuses. Interposition of the internal carotid arteries was identified in 3 (6%) patients. Conclusions. Our data revealed that the postsellar type is the most common structural type of sphenoidal sinuses. The extent of pneumatization of the sphenoidal and maxillary sinuses is independent of each other. Anatomical peculiarities of the sphenoidal sinus in the form of the interposition of the internal carotid arteries are not very rare and should be taken into account in planning surgical interventions.


2007 ◽  
Vol 65 (2A) ◽  
pp. 355-357 ◽  
Author(s):  
Arthur de Azambuja Pereira Filho ◽  
Pedro Luís Gobbato ◽  
Gustavo de Azambuja Pereira Filho ◽  
Sandro Bertani da Silva ◽  
Jorge Luiz Kraemer

Intracranial "kissing" carotid arteries are a rare variant of the carotid arteries, where both internal carotid arteries deviate medially and touch each other near the midline within the sphenoid sinus or the sphenoid bone, including the sella. This anomaly is particularly important since it may cause or mimic pituitary disease and also may complicate transsphenoidal surgery. We report a rare case of intracranial intrasellar kissing carotid arteries in a 57-years-old woman that was submitted to a computed tomography angiography during investigation of a sudden headache, and to discuss the clinical relevance of this radiological finding.


Author(s):  
Novikova I.N. ◽  
Popova T.F. ◽  
Gribacheva I.A. ◽  
Petrova E.V. ◽  
Marushchak A.A. ◽  
...  

Moya-Moya disease is a rare progressive chronic cer-ebrovascular disease characterized by a narrowing of the lumen of the intracranial segments of the internal carotid arteries, as well as the initial segments of the anterior and middle cerebral arteries with the devel-opment of a network of small vascular anastomoses. Violations of blood supply due to occlusion lead to the development of ischemic strokes in the correspond-ing pools, and ruptures of vascular anastomoses - to the development of hemorrhagic strokes, causing a variety of neurological disorders. The article presents a clinical case of Moya-Moya disease in a 31-year-old patient. The disease was manifested by acute disorders of cerebral circulation in ischemic and hemorrhagic types. The diagnosis was made in accordance with the diagnostic criteria of the disease based on the data of endovascular cerebral angiography.


2001 ◽  
Vol 176 (1) ◽  
pp. 263-264 ◽  
Author(s):  
Rodolfo A. Ibarra ◽  
Prabhakar Kesava ◽  
John L. Fewins

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1119.3-1120
Author(s):  
L. Nacef ◽  
H. Ferjani ◽  
H. Riahi ◽  
Y. Mabrouk ◽  
E. Labbene ◽  
...  

Background:Patients with rheumatoid arthritis (RA) are at higher cardiovascular risk (CVR) than the general population due to chronic inflammation. Several factors, both modifiable and non-modifiable, can increase this risk. Intima-media thickness (IMT) was considered as a marker for atherosclerosis.Objectives:This study aimed to identify predictor factors of increasing IMT.Methods:The prospective study was carried out on patients with RA who met the 2010 American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR) classification criteria. These patients were followed in the rheumatology department of the Kassab Institute. The socio-demographic data, biological and immunological parameters were collected.Framingham’s score quantified the cardiovascular risk at 10-years. Carotid Ultrasonography (US) using a high resolution B mode carotid measured intima-media thickness (IMT) as a subclinical marker of atherosclerosis. Carotid US was performed in the supine position, according to American Society of Echocardiography guidelines. IMT was measured in the left (LCC) and right (RCC) common carotid arteries, the left (LIC) and right (RIC) internal carotid arteries, and the left (LEC) and right (RIC) internal carotid arteries. An increased IMT was defined as ≥0.9 mm.We analyzed data by the SPSS statistical package. A p-value <0.05 was considered significant.Results:Of the 47 patients surveyed, 78.7% were female. The mean age was 52.5 ±11.06 [32-76]. The duration disease was 86.25 ±63 months [5-288] and was erosive in 81.6% of cases. The rheumatoid factor (RF) was positive in 57.8% of patients, and citrullinated antipeptide antibodies (ACPA) were present in 62.2%. Eight patients had a previous CV history (hypertension, diabetes or dyslipidemia) and 16.4% were active smokers. Among women, 43.6% were postmenopausal. ITM was significantly higher in men at LIC (0.037) and LEC (0.025). Older age was associated with increased ITM in LIC (p=0.046; r=0.295), LEC (p=0.05; r=0.412), RCC (p=0.034; r=0.317), and REC (p=0.009; r=0.382). The ITM for LCC, LIC, LEC, RCC, RIC, and REC was higher in postmenopausal women, with no significant difference (p=0.782, p=0.208, p=0.877, r=0.734, p=0.808, p=0.437, respectively).Among the modifiable factors, active smoking was associated with a higher ITM at the REC level (p=0.047). However, weight was not associated with an increased ITM (LCC: p=0.092; LIC: p=0.985; LEC: p=0.952; RCC: p=0.744; RIC: p=0.210; REC: p=0.510). In our study, there was no significant association between DAS28 disease activity or inflammatory marks and ITM (LCC: p=0.784; LIC: p=0.316; LEC: p=0.420; RCC: p=0.784; RIC: p=0.484; REC: p=0.754).Conclusion:In our study, the non-modifiable factors associated with increased ITM were advanced age and male gender. The modifiable factor impacting ITM was primarily active smoking. Surprisingly, disease activity and biological inflammation did not influence ITM.References:[1]S. Gunter and al. Arterial wave reflection and subclinical atherosclerosis in rheumatoid arthritis. Clinical and experimental rheumatology 2018; 36: clinical e.xperimental.[2]Aslan and al. Assessment of local carotid stiffness in seronegative and seropositive rheumatoid Arthritis. Scandinavian cardiovascular journal, 2017.[3]Martin i. Wah-suarez and al, carotid ultrasound findings in rheumatoid arthritis and control subjects: a case-control study. Int j rheum dis. 2018;1–7.Disclosure of Interests:None declared


1999 ◽  
Vol 26 (7) ◽  
pp. 469-473
Author(s):  
Mikimasa Noguchi ◽  
Takashi Tatezawa ◽  
Shigeyuki Nakajima ◽  
Osamu Ishikawa

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