scholarly journals The relationship of the anterior inferior cerebellar artery diameter and the vascular loop type with the clinical manifestations in vascular loop syndrome: a clinical radiologic study

2021 ◽  
Vol 2 (4) ◽  
pp. 124-130
Author(s):  
Fatih ÇANKAL
Keyword(s):  
Clinical Manifestations ◽  
Anterior Inferior Cerebellar Artery ◽  
Radiologic Study ◽  
Cerebellar Artery ◽  
Relationship Of ◽  
The Relationship ◽  
Vascular Loop

scholarly journals Evaluation of the Relationship Between the Internal Acoustic Canal Anatomy and Loops of the Anterior Inferior Cerebellar Artery Using 3-Tesla Magnetic Resonance Imaging

2021 ◽  
Vol 18 (4) ◽  
Author(s):  
Murat Bayav ◽  
Murat Sahin
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Anatomical Variations ◽  
3 Tesla ◽  
Anterior Inferior Cerebellar Artery ◽  
Resonance Imaging ◽  
Cerebellar Artery ◽  
The Relationship ◽  
Internal Acoustic Canal ◽  
Vascular Loop

Background: Anatomical variations in vascular structures are frequently encountered. In the cerebellopontine region, anatomical variations, especially variations in the anterior inferior cerebellar artery (AICA) in relation to cranial nerves passing through the internal acoustic canal (IAC), are common. Magnetic resonance imaging (MRI) provides detailed information for the evaluation of the cerebellopontine region and the IAC anatomy. Objectives: This study aimed to examine the relationship between the IAC anatomy and AICA loop variations and to investigate the frequency of anatomical variations and its correlation with demographic variables. Patients and Methods: In this study, 253 patients (age > 18 years), who underwent 3-Tesla MRI of the temporal bone between July 2019 and December 2019, were retrospectively evaluated. The exclusion criteria were images of poor diagnostic quality due to technical or patient-related reasons and the presence of a localized tumor that could disrupt the IAC. Four patients were excluded from the study because they had tumors related to IAC. The AICA variations were categorized according to the Chavda classification. The IAC size, canal diameter, canal length, and meatus width were measured, and the canals were characterized as cylindrical, funnel-shaped, and bud-shaped. Results: A total of 249 patients were included in this study. The Chavda type I vascular loop was the most common type on both sides. The mean size measurements of IACs were significantly higher in the group of vascular loops compared to the group without vascular loops. The presence of a vascular loop was significantly more common in funnel- and bud-shaped IACs compared to cylindrical IAC. Also, there was a negative correlation between the patient’s age and all IAC dimensions. Conclusion: The results of the present study showed that the AICA loop variations were closely related to the size and shape of the IAC.

Microsurgical relationships of the superior cerebellar artery and the trigeminal nerve

1978 ◽  
Vol 49 (5) ◽  
pp. 669-678 ◽  
Author(s):  
David G. Hardy ◽  
Albert L. Rhoton
Keyword(s):  
Trigeminal Neuralgia ◽  
Trigeminal Nerve ◽  
Operative Therapy ◽  
Superior Cerebellar Artery ◽  
Anterior Inferior Cerebellar Artery ◽  
Content Type ◽  
Cerebellar Artery ◽  
Trigeminal Nerves ◽  
Relationship Of ◽  
The Relationship

✓ Compression and distortion of the trigeminal nerve by a tortuous and elongated superior cerebellar artery (SCA) is postulated to be a frequent cause of trigeminal neuralgia. This theory and the use of operative therapy in which the offending arterial loop is separated from the trigeminal nerve has created a need for more detailed information on the relationship of the SCA and the trigeminal nerve. In order to meet this need, 50 trigeminal nerves and the adjacent SCA were examined in 25 adult cadavers. Twenty-six of the 50 nerves examined had a point of contact with the SCA, but it was uncommon for the arterial contact to produce distortion of the nerve. In six instances, the contact was at the pontine entry zone of the trigeminal nerve, the site of arterial compression postulated to be associated with trigeminal neuralgia. Four trigeminal nerves (8%) had a point of contact with the anterior inferior cerebellar artery (AICA). The fact that large arteries are commonly in contact with the trigeminal nerve is important not only because of the controversial relationship of neurovascular contact to trigeminal neuralgia, but because of the possibility that major vessels may be encountered and injured during rhizotomy and other posterior fossa operations on the trigeminal nerve.

SYSTEMIC LUPUS ERYTHEMATOSUS AND SYNDROMES POSSIBLY RELATED

PEDIATRICS ◽  
1957 ◽  
Vol 19 (6) ◽  
pp. 1109-1123
Author(s):  
M. A. Ogryzlo ◽  
H. A. Smythe
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Lupus Erythematosus ◽  
Serum Proteins ◽  
Clinical Manifestations ◽  
Electrophoretic Pattern ◽  
Chemotherapeutic Agents ◽  
Systemic Lupus ◽  
Relationship Of ◽  
The Relationship

Attention is drawn to the difficulties that may be encountered in the positive identification and classification of many patients suspected of suffering from systemic lupus erythematosus. Much of this is due to a lack of specific criteria, either clinical or pathologic, for the diagnosis of the disease. The problem has been made more difficult by the recognition of a number of other syndromes that bear a superficial resemblance to systemic lupus erythematosus, yet differ in clinical manifestations, natural course, prognosis and other respects. A feature common to the group is the presence of the L.E. cell phenomenon. The related conditions differ from lupus enythematosus in that the L.E. phenomenon may only be demonstrable intermittently especially during severe exacerbations of the disease, while at the same time disturbances in the electrophoretic pattern of the serum proteins may be much more profound. In systemic rheumatoid disease the prognosis without steroid therapy is better than in systemic lupus erythematosus, although the morbidity may be great. The reactions which follow administration of certain chemotherapeutic agents are of considerable interest, particularly in view of the similarity to lupus erythematosus and rheumatoid arthritis, and the reversibility on withdrawal of the offending agent. The relationship of these syndromes to each other and to classical systemic lupus erythematosus has not yet been resolved, and inclusion of them under the diagnosis of systemic lupus erythematosus at this time must be regarded as premature.

The relationship of the level of circulating antiangiogenic factors to the clinical manifestations of preeclampsia

2009 ◽  
Vol 29 (5) ◽  
pp. 464-470 ◽  
Author(s):  
Young Nam Kim ◽  
Dae Shim Lee ◽  
Dae Hoon Jeong ◽  
Moon Su Sung ◽  
Ki Tae Kim
Keyword(s):  
Clinical Manifestations ◽  
Antiangiogenic Factors ◽  
Relationship Of ◽  
The Relationship

scholarly journals The phenomenon of rosacea-rushes (theoretical aspects)

2021 ◽  
Vol 26 (2) ◽  
pp. 33-39
Author(s):  
V.A. Bocharov ◽  
V.V. Bocharova ◽  
M.M. Lebediuk ◽  
A.A.S. Sarayreh ◽  
L.V. Kuts
Keyword(s):  
Clinical Manifestations ◽  
Reproductive Function ◽  
Local Heat ◽  
Cellular Level ◽  
Reproductive Age ◽  
Theoretical Substantiation ◽  
Promising Area ◽  
The Face ◽  
Relationship Of ◽  
The Relationship

According to the decisions of international scientific forums, the problem of phenomenon of rosacea (acne rosacea), a common dermatosis with numerous unexplained aspects of etiopathogenesis is a promising area of modern medical research. The aim of the study was theoretical substantiation of the essential features of the mechanisms of occurrence, development and clinical manifestations of the first signs of rosacea in women of reproductive age. The use of a systematic analytical methodical approach to assess the data of clinical and laboratory examinations of women with rosacea, conducted in different regions of the world, allowed to establish the originality of such manifestations of dermatosis as the appearance of unexpected rushes to limited areas of the face, accompanied by local redness and local heat areas of the skin differring significantly from similar rushes in other diseases or syndromes (menopause, migraine, etc.). It is established that the peculiarity of the relationship of these clinical characteristics (from English: rush, ruddy, redness, rosacea, reproductive age of women, reaction) allows to indicate the first signs of dermatosis as a phenomenon inherent in this disease Rush-Ruddy-Rosacea-Reproduce-Reaction (abbreviated – «5-R»), the key pathophysiological target of which (as well as the disease as a whole) is a disorder of a set of hierarchically dependent mechanisms of the evolutionarily determined motivational need to ensure reproductive function in women (both at the cellular level and extracellular structures of the ovaries, and at different levels of subcortical formations and centers of the cortex of the cerebral hemispheres). The phenomenon of rosacea rush is closely related to other phenomena of this dermatosis – hypersensitivity of bradykinin receptors, actinic elastosis, development of post erythematous telangiectasia. The prospect of further research on the problem of rosacea is to study the relationship of disorders in the functional systems of molecules of signaling compounds of different classes (hormones, eicosanoids, neuropeptides, kinins, cytokines and others) in the pathogenesis of the disease.

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