393 results match your criteria: "Ochsner Neuroscience Institute[Affiliation]"

Purpose: The aim of this study is to determine the exact locations of vascular pedicles that supply the fibularis longus and brevis, to identify the morphometric features of those vessels in the lateral compartment of the leg, and to indicate the branching points of the pedicles from the main arteries.

Methods: The popliteal arteries of 40 lower limbs from 20 adult cadavers (12 males, 8 females) were bilaterally injected with colored latex. After dissection, the branches of the arteries were identified and counted.

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The trochlea for the intermediate tendon of the digastric muscle: a review.

Anat Cell Biol

January 2025

Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA.

This review explores the novel perspective that the intermediate tendon of the digastric muscle may function as an anatomical trochlear pulley system within the human body, challenging the traditional understanding of trochlear systems. While widely recognized trochlear units include structures like the medial part of the humerus and the superior oblique muscle of the orbit, the review focuses on the unique anatomical arrangement of the intermediate tendon of the digastric muscle in connection with the anterior and posterior bellies of the digastric muscles. Despite current debates within the anatomical community about labeling the digastric muscles as having a trochlea, this paper delves into the scientific definition of a trochlear pulley system, presenting the intermediate tendon of the digastric muscle as a potential trochlea.

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Objective: Brainstem cavernous malformations (BSCMs) were once considered inoperable. Microsurgical resection now represents a valuable option for treating patients with hemorrhagic or symptomatic lesions. The aim of this study was to provide a practical guide for surgical planning by analyzing postoperative neurological and functional outcomes.

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The Transverse Humeral Ligament: An Anatomical Narrative Review.

Clin Anat

December 2024

Division of Gross and Clinical Anatomy, Department of Anatomy, Kurume University School of Medicine, Fukuoka, Japan.

Shoulder pain often involves the tendon of the long head of the biceps brachii (LHBT) and the transverse humeral ligament (THL). Traditionally, the THL is considered a ligament that prevents the LHBT from dislocating, but recent studies suggest that it may be part of the subscapularis tendon. This review evaluates the nature of the THL and its overlying structures.

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Anatomical and histological classification of the stellate ganglion: implications for clinical nerve blocks.

Surg Radiol Anat

December 2024

Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, 131 S. Robertson St. Suite 1300, New Orleans, LA, 70112, USA.

Article Synopsis
  • The stellate ganglion (SG) is crucial for anesthetic procedures in the neck, but it can be tricky due to potential complications and the need for precise anatomical knowledge.
  • Various techniques like ultrasound and fluoroscopy help with SG block, but complications can arise from the procedure itself or the medications used.
  • A study examined the shapes and histology of the SG in adult cadavers, categorizing them into four types: spindle (most common), dumbbell, star, and inverted L, with insights intended to enhance surgical accuracy and patient care.
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A review of the ethmoidal foramina and their clinical application.

Anat Cell Biol

December 2024

Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA.

The ethmoidal foramina (EF), located on the medial orbital wall along the frontoethmoidal sutures, are critical anatomical landmarks for surgeries involving the medial orbital wall. This review aimed to review the surgical anatomy of the EF, including their embryology and radiology. Although the frontoethmoidal sutures mostly have two foramina passing through them, there are reports of single foramen or multiple, up to six foramina.

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Bony prominence and variations of the transverse sinus groove: novel anatomical findings in relation to sinus pathologies.

Neurosurg Rev

November 2024

Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, 131 S. Robertson St. Suite 1300, New Orleans, LA, 70112, USA.

The transverse sinus (TS) is often involved with pathology for structural reasons. The aim of this study was to improve understanding of the anatomy along the groove of the TS and sigmoid sinus (SS), to discuss the relationship between the bony features and pathologies affecting the TS. Seventy dry skulls (140 sides) were used for detailed observation of the TS and SS grooves using gross investigation coupled with transillumination.

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Article Synopsis
  • The nasal bones are crucial for the structure of the external nose and the maxillofacial area, forming a paired, quadrangular shape connected to other facial bones.
  • In a study, two adult human skulls showed variations in the anatomy of the nasal bones, including one skull with a bifid and hooked nasal septum.
  • Recognizing these anatomical differences is significant for maxillofacial surgeries and should be taken into account when analyzing facial imaging, despite being relatively rare.
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The high incidence of deep vein thrombosis (DVT) in evacuees has been recognized since the 2004 Niigata-Chuetsu Earthquake in Japan. We hypothesized that the number and location of communicating branches of the soleal veins might influence thrombus development and that the median septum of the soleus muscle influences the venous network of the soleal veins. This study aimed to investigate how the network of soleal veins varies with the shape and thickness of the median septum and to elucidate factors predisposing soleal veins to DVT.

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Rabbi Moshe Ben Maimon, known as Maimonides (Hebrew name is Rambam), lived from 1138 to 1204. He was one of the important philosophers, adjudicators, and physicians of the Jews. Rambam's knowledge of Jewish laws and his being a philosopher helped him in his third discipline, medicine.

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Article Synopsis
  • Variations in intradural venous sinuses are common, but this study uniquely reports multiple fenestrated sinuses in the same specimen for the first time.
  • The findings revealed that the right transverse sinus was larger and positioned higher than the left, while no occipital sinus was found and the straight sinus drained near the left transverse sinus.
  • Understanding these anatomical variations is essential in clinical settings to avoid complications during surgeries, and the paper also includes a discussion on the embryological development of these sinuses.
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Diagnosis of Incident Cancer After Cryptogenic Stroke: An Exploratory Analysis of the ARCADIA Randomized Trial.

Neurology

November 2024

From the Clinical and Translational Neuroscience Unit (B.B.N., C.Z., A.P., M.B., H.K.), Feil Family Brain and Mind Research Institute and Department of Neurology, Weill Cornell Medicine, New York; Department of Neurology (B.B.N.), Memorial Sloan Kettering Cancer Center, New York, NY; Department of Neurology (B.R.M., C.S.), University of Minnesota, Minneapolis; Division of Hematology and Oncology (M.C.), Department of Medicine, University of Vermont Larner College of Medicine, Burlington; Department of Neurology (S.E.K.), University of Pennsylvania School of Medicine, Philadelphia; Department of Neurology (D.T., W.L.), Department of Epidemiology (W.L.), and Department of Biostatistics (R.K.), University of Washington, Seattle; Department of Biostatistics (J.E.), Medical University of South Carolina, Charleston; Ochsner Neuroscience Institute (R.M.Z., J.T.), Ochsner Health, New Orleans, LA; Department of Neurology and Rehabilitation Medicine (J.P.B.), University of Cincinnati College of Medicine, OH; Sunnybrook Research Institute (D.J.G.), Hurvitz Brain Sciences Program, Sunnybrook Health Sciences Centre, and Division of Neurology (D.J.G.), Department of Medicine, University of Toronto, Ontario, Canada; Department of Neurology (M.B.), Inselspital, Bern University Hospital and University of Bern, Switzerland; and Department of Neurology (M.S.V.E.), Vagelos College of Physicians and Surgeons, and Department of Epidemiology (M.S.V.E.), Mailman School of Public Health, Columbia University, New York, NY.

Objectives: The objective of this study was to estimate the incidence, timing, and type of new cancer diagnosis among patients with cryptogenic stroke.

Methods: We used data from the ARCADIA trial, which enrolled patients with cryptogenic stroke and atrial cardiopathy. Participants were prospectively followed, and serious adverse events were assessed every 3 months or sooner if investigators were alerted between visits to an event.

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Person-Directed Ictal Pointing Gesture During a Focal Seizure: Intracranial EEG Correlation.

Neurology

November 2024

From the The International Center for Epilepsy at Ochsner (F.K., E.N.), and Ochsner Neurosciences BioDesign Lab (C.C.), Ochsner Neuroscience Institute, Ochsner Clinical School - University of Queensland, New Orleans, LA.

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Correction: Radiological assessment of the dissection area in supraomohyoid neck dissection.

Surg Radiol Anat

December 2024

Department of Oral and Maxillofacial Radiology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.

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Impact of articles written in non-alphabet languages.

Clin Anat

October 2024

Department of Neurosurgery, Clinical Neuroscience Research Center, Tulane University School of Medicine, New Orleans, Louisiana, USA.

Nowadays, English is the lingua franca of science, and the reference lists in most English articles are dominated by other English articles. Publications in languages other than English are most often in French, Italian, Spanish, or German. The minority written languages, that is, non-alphabet languages, have often not been included in reference lists in the scientific literature.

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Basilar artery bands (BAB) are described in scant reports in the literature as shelves, bridges, septa, or webs within the lumen of the basilar artery. The anatomy and histology of these bands have only recently been fully explored and classified. Although there has been evidence of non-atherosclerotic calcification of these structures and vertebrobasilar atherosclerosis, previous studies have not demonstrated any plaque or thrombus formation on the basilar artery bands.

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Background: This report aims to supplement the existing knowledge on the inferior oblique muscle. In particular, this study presents detailed anatomical and histological data concerning the muscle's entry point (or entry zone) of the nerve to the inferior oblique muscle. Particular attention was paid to the topographical relationships of the nerve to the inferior oblique muscle (NTIO), including the location of its entry point to the muscle's belly and its anatomical variations.

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Article Synopsis
  • * A study involving 72 adult cadavers found that the GON rarely pierces the OIC, but when it does, it shows signs of chronic compression affecting nerve health.
  • * This research highlights a potentially overlooked cause of occipital neuralgia, suggesting that GON entrapment by the OIC may be more common than previously thought.
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In infectious meningitis, pathogens preferentially attack the leptomeninges (pia mater and arachnoid) rather than the pachymeninges (dura mater). This study aims to provide ultra-anatomical insights from our extensive collection of electron microscopy images and propose mechanisms, highlighting structures that favor the introduction, adherence, colonization, and proliferation of microorganisms leading to spinal meningitis. Over several years, we analyzed an extensive collection of transmission and scanning electron microscopy images of human spinal meninges captured in our laboratories.

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In medical education, traditional anatomy labs have relied heavily on the hands-on dissection of cadavers to teach the complex spatial relationships within the human body. However, the advent of virtual reality (VR) technology offers the potential for significantly enhancing this traditional approach by providing immersive, interactive 3D visualizations that can overcome some of the limitations of physical specimens. This study explores the integration of VR into a traditional gross anatomy lab to enrich the learning experience for medical students.

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Article Synopsis
  • Schwannomas are benign tumors from Schwann cells, commonly appearing in the head, neck, and upper limbs, but rare in the lower limbs; they can be sporadic or linked to genetic issues like neurofibromatosis type 2.
  • The case discussed involves a 57-year-old woman with a painless mass in her leg, diagnosed through physical examination and imaging as a benign nerve sheath tumor, later confirmed as schwannoma after surgery.
  • The recovery was smooth, with no complications in follow-up, underscoring the need for careful examination and imaging in diagnosing schwannomas, especially for lower limb masses.
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Revisiting morphology of xiphoid process of the sternum in human: a comprehensive anatomical study.

Surg Radiol Anat

October 2024

Department of Neurosurgery, Clinical Neuroscience Research Center, Tulane University School of Medicine, 131 S. Robertson St. Suite 1300, New Orleans, LA, 70112, USA.

Article Synopsis
  • The xiphoid process (XP) in humans, considered an anatomical variant, was studied to better understand its morphology and cartilage presence.
  • A study using twenty embalmed cadaveric sterna revealed that 85% of XPs contained cartilage, classified into four types based on bone and cartilage proportions.
  • The findings suggest that previous research may have misjudged the XP's size and emphasizes the importance of recognizing xiphoidal cartilage as a normal anatomical feature.
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Article Synopsis
  • About 10% to 15% of ischemic strokes are linked to cancer, especially cryptogenic strokes, which pose a higher risk for recurrent strokes and major bleeding; however, there’s limited data on the best antithrombotic treatments for these patients.
  • The study aimed to evaluate the effectiveness of apixaban versus aspirin in preventing serious complications in cancer patients who had a cryptogenic stroke.
  • In a post hoc analysis of 1015 patients from the ARCADIA trial, it was found that 13.5% had a history of cancer, and those patients faced a greater risk of adverse outcomes compared to those without a cancer history.
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