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Journal of Clinical Neuroscience :... Jan 2024The artery of Wollschlaeger and Wollschlaeger (AWW), named after the German neuroradiologists who discovered it, is a unique and remarkable anatomical structure. This... (Review)
Review
INTRODUCTION
The artery of Wollschlaeger and Wollschlaeger (AWW), named after the German neuroradiologists who discovered it, is a unique and remarkable anatomical structure. This review will delve deeper into the intricate details of the AWW its origin, significance, and the studies associated with it.
METHODS
A comprehensive evaluation of the available literature on the AWW was conducted by doing searches on reputable academic databases such as PubMed, Google Scholar, and Web of Science. The present study incorporated the terminology "The artery of Wollschlaeger and Wollschlaeger," "medial dural-tentorial artery," and "meningeal branch of the superior cerebellar artery." We conducted an investigation on the literature pertaining to its existence, anatomy, pathology, and clinical implications.
RESULTS
Upon conducting a comprehensive examination of the existing literature and primary sources pertaining to the AWW, it was observed that a limited number of scholarly investigations have been undertaken to explore this subject matter. We made observations on the anatomical characteristics of the subject and engaged in a discussion regarding their prospective applications and importance in the context of neurosurgical procedures.
CONCLUSIONS
Despite its minute size, its role in vascular circulation is considerable. The understanding of this artery's characteristics and its links to certain neurosurgical conditions assists neurosurgeons and researchers in their pursuit to advance medical knowledge and design effective treatment strategies.
Topics: Humans; Dura Mater; Neurosurgical Procedures; Basilar Artery
PubMed: 38048741
DOI: 10.1016/j.jocn.2023.11.030 -
Annals of Anatomy = Anatomischer... Aug 2023The popliteal artery is located in the popliteal fossa. In addition to its other branches, it divides into two terminal branches, the anterior and posterior tibial... (Review)
Review
The popliteal artery is located in the popliteal fossa. In addition to its other branches, it divides into two terminal branches, the anterior and posterior tibial arteries, which are subject to numerous morphological variations. The purpose of this review is to compile several authors' classifications of the patterns of terminal branching of the popliteal artery among adults and to describe the division among foetuses, as described in the current literature. Pathologies of the popliteal artery such as popliteal artery aneurysm and popliteal artery entrapment syndrome and methods for treating them, like open surgery and endovascular interventions are also discussed. Awareness of the morphological variations of the popliteal artery is important for radiologists and surgeons as it allows the risk of complications during surgery to be reduced.
Topics: Adult; Humans; Popliteal Artery; Lower Extremity; Tibial Arteries; Radiologists; Surgeons
PubMed: 37105405
DOI: 10.1016/j.aanat.2023.152100 -
Journal of Zoo and Wildlife Medicine :... Oct 2023Anesthesia is frequently required to provide appropriate medical care to captive great apes. Anesthetic safety can be optimized through placement of an arterial...
Anesthesia is frequently required to provide appropriate medical care to captive great apes. Anesthetic safety can be optimized through placement of an arterial catheter, which allows direct measurement of arterial blood pressure and easy sampling of arterial blood for blood-gas analysis. Arterial catheterization in great apes can be achieved through palpation-guided or ultrasound-guided placement with or without a modified Seldinger technique. Potential sites for arterial catheterization include the anterior tibial artery, caudal tibial and posterior saphenous arteries, dorsal pedal artery, femoral artery, radial artery, and brachial artery. Arterial catheterization is recommended for lengthy great ape anesthetic procedures or those involving invasive procedures.
Topics: Animals; Catheterization, Peripheral; Radial Artery; Femoral Artery; Hominidae; Anesthetics
PubMed: 37817631
DOI: 10.1638/2022-0073 -
Ugeskrift For Laeger Jan 2024This is a case report of two men aged 39 and 43 years with dissection of the coeliac trunk involving the splenic arteries causing splenic infarction. One case was...
This is a case report of two men aged 39 and 43 years with dissection of the coeliac trunk involving the splenic arteries causing splenic infarction. One case was associated with an increase in abdominal pressure during defaecation and the other occurred during treatment with methylphenidate. Based on the published 43 cases, risk factors include male sex, increased intraabdominal pressure or increased vascular pressure. Methylphenidate most likely increased the blood pressure, and dissections of other arteries have been described during treatment with this and the similar drug amphetamine.
Topics: Humans; Male; Amphetamine; Blood Pressure; Celiac Artery; Methylphenidate; Splenic Artery; Adult
PubMed: 38235724
DOI: 10.61409/V07230468 -
No Shinkei Geka. Neurological Surgery May 2024A right aortic arch and aberrant subclavian artery result from an interruption in the remodeling of the pharyngeal arch arteries. We occasionally encounter this... (Review)
Review
A right aortic arch and aberrant subclavian artery result from an interruption in the remodeling of the pharyngeal arch arteries. We occasionally encounter this anatomical variation during angiography. Patients with disorders such as Down syndrome and congenital heart disease show a high incidence of an aberrant right subclavian artery, and this anomaly can cause symptomatic esophageal or tracheal compression. The root of the aberrant artery may show dilatation(referred to as a Kommerell diverticulum), dissection, intramural hematoma, or rupture necessitating cardiac intervention using a surgical or endovascular approach. Neurointerventionalists should have working knowledge of the anatomy to rapidly understand the anatomy and ensure a safe procedure. A left transradial approach should be considered if prior knowledge of the aberrant subclavian anatomy is available.
Topics: Humans; Aorta, Thoracic; Subclavian Artery; Vascular Remodeling; Cardiovascular Abnormalities
PubMed: 38783489
DOI: 10.11477/mf.1436204939 -
Medicina (Kaunas, Lithuania) Feb 2024: Typically, the external carotid artery (ECA) sends off separate anterior branches: the superior thyroid, lingual, and facial arteries. These could, however, form...
: Typically, the external carotid artery (ECA) sends off separate anterior branches: the superior thyroid, lingual, and facial arteries. These could, however, form common trunks: thyrolinguofacial, linguofacial (LFT), or thyrolingual. Although known, the LFT variant was poorly detailed previously, and most authors just counted the variant. We aimed to demonstrate the individual anatomical possibilities of the LFT on a case-by-case basis. : 150 archived angioCT files were used. After applying inclusion and exclusion criteria, 147 files of 86 males and 61 females were kept for this study. : In 34/147 cases, LFTs were found (23.12%). Bilateral LFTs were found in 13/34 cases (38.24%) and unilateral LFTs in 21/34 (61.76%) cases. Forty-seven LFTs were thus identified and further studied for different variables. Regarding the vertical topography of LFT origin, type 1a (suprahyoid and infragonial) was found in 28 LFTs (59.57%), type 1b (suprahyoid and gonial) was found in eight LFTs (17.02%), type 3 (suprahyoid and supragonial) was found in two LFTs (4.25%), type 2 (hyoid level of origin) in eight LFTs (17.02%), and type 3 (infrahyoid origin) in just one LFT (2.12%). Types of the initial course of the LFT were determined: type I, ascending, was found in 22/47 LFTs; type II, descending, in 12/47 LFTs; and type III, transverse, in 13/47 LFTs. Regarding the orientation of the first loop of the LFT, 23/47 LFTs had no loop, 4/47 had anterior loops, 1/47 had a posterior loop, 5/47 had superior loops, 5/47 had inferior loops, and 9/47 had medial loops. The position of the LFT relative to the ECA was classified as medial, anterior, or antero-medial. An amount of 12/47 LFTs were anterior to the ECA, 22/47 were antero-medial, 10/47 were medial, 2/47 were inferior, and 1/47 was lateral. Regarding their general morphology, 23/47 LFTs had a rectilinear course, 22/47 had loops, and 2/47 were coiled. A case-by-case presentation of results further demonstrated the diversity of the LFT. : In conclusion, the morphology and topography of the LFT are individually specific and unpredictable. It can be anticipated case-by-case by surgeons on CT or MR angiograms.
Topics: Male; Female; Humans; Carotid Artery, External; Thyroid Gland; Tongue; Arteries; Liver Function Tests
PubMed: 38399578
DOI: 10.3390/medicina60020291 -
Clinical Neuroradiology Dec 2023Little is known about the association between carotid artery tortuosity and internal carotid artery atherosclerosis. This study sought to evaluate the associations...
BACKGROUND
Little is known about the association between carotid artery tortuosity and internal carotid artery atherosclerosis. This study sought to evaluate the associations between various types of arterial tortuosity and vulnerable plaque components on magnetic resonance angiography (MRA).
MATERIAL AND METHODS
A retrospective review was completed of 102 patients who had undergone MRA neck imaging, with intraplaque hemorrhage (IPH) present in one or both cervical internal carotid arteries (ICA). Each ICA was assessed for two categories of tortuosity: variant arterial pathway(s) (retrojugular and/or retropharyngeal) and abnormal curvature (kinks, loops, and/or coils). All ICA plaques were assessed for the presence or absence of intraplaque hemorrhage (IPH), lipid-rich necrotic core (LRNC), ulceration, and enhancement, as well as the volume of IPH and degree of luminal stenosis.
RESULTS
The mean age of included patients was 73.5 years (SD = 9.0 years) and 88 (86.3%) subjects were male. The left carotid plaque was significantly more likely to have IPH (68.6% vs. 47.1%; p = 0.02). The left ICA was more likely to have a retrojugular course (22% vs. 9.9%; p = 0.002) and any variant arterial course (26.5% versus 14.67%, p = 0.01). On the right there was an association between the presence of a LRNC and retropharyngeal and/or retrojugular arterial pathway (p = 0.03). On the left there was an association between the presence of any abnormal arterial curvature and IPH volume (p = 0.03). Neither association met the adjusted statistical threshold after Bonferroni correction, with alpha set at 0.0028.
CONCLUSION
ICA tortuosity is not associated with carotid artery plaque composition, and likely does not play a role in the development of high-risk plaques.
Topics: Humans; Male; Aged; Female; Carotid Stenosis; Carotid Artery, Internal; Plaque, Atherosclerotic; Carotid Arteries; Hemorrhage
PubMed: 37286876
DOI: 10.1007/s00062-023-01302-1 -
Neuro-Chirurgie May 2024The vertebral arteries represent in the adult the main blood supply of the posterior cranial fossa, even if they appear relatively late during the embryological life. We... (Review)
Review
The vertebral arteries represent in the adult the main blood supply of the posterior cranial fossa, even if they appear relatively late during the embryological life. We reviewed all the most important steps of the vertebral artery's embryological development and the most common variants that can occur in the adult. The aim of this review is to summarize the main events of the development of this artery and to give an embryological explication for the most common variants of this artery.
Topics: Humans; Vertebral Artery; Adult; Cranial Fossa, Posterior
PubMed: 38277860
DOI: 10.1016/j.neuchi.2023.101517 -
Best Practice & Research. Clinical... Feb 2024Preeclampsia (PE) is a multiorgan disorder that complicates around 2-8% of pregnancies and is a major cause of perinatal and maternal morbidity and mortality. PE is a... (Review)
Review
Preeclampsia (PE) is a multiorgan disorder that complicates around 2-8% of pregnancies and is a major cause of perinatal and maternal morbidity and mortality. PE is a clinical syndrome characterized by hypertension secondary to systemic inflammation, endothelial dysfunction, and syncytiotrophoblast stress leading to hypertension and multiorgan dysfunction. The uterine arteries are the main blood vessels that supply blood to the uterus. They give off branches and plays an important role in maintaining blood supply during pregnancy. The arcuate artery originates from the uterine artery and runs medially through the myometrium. The arcuate arteries divide almost directly into anterior and posterior branches, from which the radial artery leads directly to the uterine cavity during their course. Near the endometrium-myometrium junction, the radial artery generates spiral arteries within the basal layer and functional endometrium. The walls of radial and spiral arteries are rich in smooth muscle, which is lost when trophoblast cells invade and become large-caliber vessels. This physiological transformation of uteroplacental spiral arteries is critical for successful placental implantation and normal placental function. In normal pregnancy, the luminal diameter of the spiral arteries is greatly increased, and the vascular smooth muscle is replaced by trophoblast cells. This process and changes in the spiral arteries are called spiral artery remodeling. In PE, this genetically and immunologically governed process is deficient and therefore there is decreased vascular capacitance and increased resistance in the uteroplacental circulation. Furthermore, this defect in uteroplacental spiral artery remodeling is not only associated with early onset PE, but also with fetal growth restriction, placental abruption, and spontaneous premature rupture of membranes. Doppler ultrasound allows non-invasive assessment of placentation, while the flow impedance decreases as the pregnancy progresses in normal pregnancies, in those destined to develop preeclampsia the impedance is increased.
Topics: Pregnancy; Female; Humans; Placenta; Uterine Artery; Pre-Eclampsia; Placentation; Ultrasonography, Doppler; Hypertension
PubMed: 38039843
DOI: 10.1016/j.bpobgyn.2023.102426 -
The Journal of Surgical Research Nov 2023Traumatic injuries to the radial and/or ulnar arteries represent a subset of arterial injuries. In the absence of injury to both forearm arteries, treatment was...
INTRODUCTION
Traumatic injuries to the radial and/or ulnar arteries represent a subset of arterial injuries. In the absence of injury to both forearm arteries, treatment was historically ligation if perfusion was maintained to the hand via the uninjured vessels or adequate collateral vessels. We sought to determine management of traumatic forearm arterial injuries in 2019 and to identify risk factors for major upper extremity amputation.
METHODS
The American College of Surgeons Trauma Quality Improvement Program database was queried by International Classification of Diseases 10 code for patients with traumatic radial and/or ulnar artery injuries within the year 2019. Patient demographics, Injury Severity Score, time to operating room, type of repair, outcomes, and mortality were collected. Multivariable logistic regression was used to identify risk factors for major upper extremity amputation.
RESULTS
A total of 4048 patients with traumatic radial and/or ulnar artery injuries were identified. A total of 1907 radial artery operations were performed including repair (59%), ligation (29%), and interposition bypass (12%). A total of 1637 ulnar artery operations were completed including repair (67%), ligation (21%), and interposition bypass (12%). Major upper extremity amputation occurred in 0.6%. Older age (adjusted odds ratio [AOR]: 1.014, 95% confidence interval [CI]: 1.004-1.024, P = 0.0048), blunt mechanism (AOR: 2.457, 95% CI: 1.730-3.497, P < 0.0.0001), and ipsilateral radial and ulnar artery injury (AOR: 2.148, 95% CI: 1.298-3.553, P = 0.0029) were associated with major amputation. Surgical revascularization, time to operating room, fasciotomy, and compartment syndrome were not associated with major amputation, but this may be secondary to Type II error.
CONCLUSIONS
In the operating room, radial and ulnar artery injuries were managed more often with restoration of flow versus ligation. Older age, blunt mechanism, and ipsilateral radial and ulnar artery injury were associated with major amputation. Amputation rate was low at 3% overall and 0.6% for amputation of the hand or a more proximal level. Upper extremity fracture, upper extremity nerve injury, and ipsilateral radial and ulnar artery injury were associated with need for revision operation.
Topics: Humans; Ulnar Artery; Wounds, Nonpenetrating; Treatment Outcome; Retrospective Studies; Vascular System Injuries; Risk Factors; Amputation, Surgical; Limb Salvage
PubMed: 37540968
DOI: 10.1016/j.jss.2023.07.015