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https://www.readbyqxmd.com/read/29141306/-methods-and-advances-in-the-research-of-lymphatics-in-the-head-and-neck
#1
R Guo, J Tian, Y Jia, P F He, R X Jin, J Guo, B Q Wang
The lymphatic system plays an important role in human health and disease. In addition to a role in the immune response, the lymphatics can also serve as a pathway for cancer metastasis.Head and neck squamous cell carcinoma (HNSCC) is one of the most common cancers.In the case where the primary focus has been controlled, cervical lymph node metastasis is one of the most important factors affecting the prognosis of head and neck cancer.Thus, understanding the anatomy of the lymphatic system is of paramount importance in predicting cancer metastasis and to perform proper lymph node dissection in cancer patients...
November 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/29138871/revision-shoulder-arthroplasty-with-a%C3%A2-reverse-shoulder-prosthesis-use-of-structural-allograft-for-glenoid-bone-loss
#2
S E Ozgur, R Sadeghpour, T R Norris
INTRODUCTION: Revision shoulder arthroplasty presents many unique and complex challenges when glenoid bone loss is involved. A distorted and medialized anatomy prevents the proper mechanics of the reverse prosthesis with regard to deltoid tension and ultimate function. This paper highlights one surgeon's experience using structural allograft for glenoid bone loss. PATIENTS AND METHODS: In all, 20 patients for a total of 24 surgeries with a medialized glenoid and/or substantial glenoid bone loss of grade IIB or higher were evaluated in this retrospective study...
November 14, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/29135880/histological-osteoarthritic-changes-in-the-human-cervical-spine-facet-joints-related-to-age-and-gender
#3
Lars Uhrenholt, Annie Vesterby Charles, Markil Gregersen, Jan Hartvigsen, Ellen-Margrethe Hauge
STUDY DESIGN: Cross-sectional autopsy study. OBJECTIVE: Quantify histological changes in the lower cervical spine facet joints with regard to age and gender using systematic random sampling of entire joints. SUMMARY OF BACKGROUND DATA: Neck pain is a common debilitating musculoskeletal condition and one of the highest ranked causes of years lived with disability. The cause of neck pain is multifactorial and osteoarthritis is one potential cause...
November 10, 2017: Spine
https://www.readbyqxmd.com/read/29134424/anatomical-basis-for-simultaneous-block-of-greater-and-third-occipital-nerves-with-an-ultrasound-guided-technique
#4
Ken Kariya, Yosuke Usui, Naoko Higashi, Tatsuo Nakamoto, Hironobu Shimbori, Satoshi Terada, Hideo Takahashi, Hisashi Ueta, Yusuke Kitazawa, Yasushi Sawanobori, Yasuhisa Okuda, Kenjiro Matsuno
PURPOSE: In some headache disorders, for which the greater occipital nerve block is partly effective, the third occipital nerve is also suggested to be involved. We aimed to establish a simple technique for simultaneously blocking the greater and third occipital nerves. METHODS: We performed a detailed examination of dorsal neck anatomy in 33 formalin-fixed cadavers, and deduced two candidate target points for blocking both the greater and third occipital nerves...
November 13, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/29131235/anatomical-variations-of-brachial-plexus-in-fetal-cadavers
#5
Alparslan Kirik, Senem Ertuğrul Mut, Mehmet Kadri Daneyemez, Halil İbrahim Seçer
AIM: The plexus brachialis is a complex structure with anatomical variations and connections with neighboring tissues. These variations may cause disparity in the motor and sensorial innervations of the upper extremity. The knowledge of anatomy and probable variations are important for performing surgical procedures in the neck, shoulder and axilla. This study was planned to demonstrate the anatomical variations of infantile brachial plexus. MATERIAL AND METHODS: A total of 20 plexus brachialis from 11 fetal cadavers were dissected and examined microscopically...
October 18, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/29128000/diffusion-weighted-imaging-in-head-and-neck-cancer-technique-limitations-and-applications
#6
REVIEW
Michael Connolly, Ashok Srinivasan
Diffusion-weighted imaging (DWI) of the head and neck represents a distinct method of MR imaging with far-ranging applications. Research continues to hone the capabilities of DWI in characterization, prediction, monitoring, assessing response to treatment, and detecting posttreatment changes and recurrent tumors. Pretreatment apparent diffusion coefficient (ADC) values can suggest the likelihood of response to treatment. DWI-obtained ADC values are able to look beyond the anatomy in posttreatment tumor beds and metastatic lymph nodes to evaluate for tumor recurrence...
February 2018: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/29124354/parathyroid-thyroid-and-recurrent-laryngeal-nerve-anatomy-in-an-indian-rhinoceros-rhinoceros-unicornis
#7
R Udelsman, S B Citino, M Prasad, P I Donovan, D V Fredholm
INTRODUCTION: The parathyroid gland was first identified in the Indian rhinoceros in 1849 by Sir Richard Owen. We performed a necropsy in an Indian rhinoceros, recapitulating Owen's dissection and display what appear to be the initial identification of the recurrent laryngeal nerve in situ and the anatomy and histology of the largest rhinoceros parathyroid glands yet identified. MATERIALS AND METHODS: Patrick T. Rhino, a 41-year-old Indian rhinoceros was born in 1974...
November 9, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/29122764/mr-imaging-of-the-superior-cervical-ganglion-and-inferior-ganglion-of-the-vagus-nerve-structures-that-can-mimic-pathologic-retropharyngeal-lymph-nodes
#8
H Yokota, H Mukai, S Hattori, K Yamada, Y Anzai, T Uno
BACKGROUND AND PURPOSE: The superior cervical ganglion and inferior ganglion of the vagus nerve can mimic pathologic retropharyngeal lymph nodes. We studied the cross-sectional anatomy of the superior cervical ganglion and inferior ganglion of the vagus nerve to evaluate how they can be differentiated from the retropharyngeal lymph nodes. MATERIALS AND METHODS: This retrospective study consists of 2 parts. Cohort 1 concerned the signal intensity of routine neck MR imaging with 2D sequences, apparent diffusion coefficient, and contrast enhancement of the superior cervical ganglion compared with lymph nodes with or without metastasis in 30 patients...
November 9, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29122537/a-coil-placement-technique-to-treat-intracranial-aneurysm-with-incorporated-artery
#9
Chao-Bao Luo, Feng-Chi Chang, Chung-Jung Lin, Wan-Yuo Guo
BACKGROUND: Endovascular coil embolization is an accepted treatment option for intracranial aneurysms. However, the coiling of aneurysms with an incorporated artery (IA) poses a high risk of IA occlusion. Here we report our experience of endovascular coil placement using a technique that avoids IA occlusion in aneurysms with IAs. METHODS: Over a 6-year period, 185 patients harboring 206 intracranial aneurysms underwent endosaccular coiling. Forty-two of these patients with 45 aneurysms were treated by coil placement to avoid IAs occlusion...
November 6, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/29113863/long-term-outcomes-after-carotid-artery-stenting-of-patients-with-prior-neck-irradiation-or-surgery
#10
Ho-Hin K Choy, Damianos G Kokkinidis, Ryan Cotter, Gagan D Singh, R Kevin Rogers, Stephen W Waldo, John R Laird, Ehrin J Armstrong
BACKGROUND: Carotid artery stenting (CAS) is often performed in patients with carotid artery stenosis who have relative contraindications to carotid endarterectomy (CEA), including hostile neck anatomy (e.g., history of neck irradiation or prior surgery). We examined the impact of hostile neck anatomy on long-term outcomes after CAS. METHODS: All carotid artery stent procedures performed at two institutions from 2006 to 2016 were reviewed. Routine duplex carotid ultrasound was used to assess target lesion restenosis at regular intervals...
September 21, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29107220/do-longus-capitis-and-colli-really-stabilise-the-cervical-spine-a-study-of-their-fascicular-anatomy-and-peak-force-capabilities
#11
Ewan Kennedy, Michael Albert, Helen Nicholson
BACKGROUND: Longus capitis and colli are proposed to play a role in stabilising the cervical spine, targeted in clinical and research practice with cranio-cervical flexion. However, it is not clear if these muscles are anatomically or biomechanically suited to a stabilising role. OBJECTIVES: To describe the fascicular morphology of the longus capitis and colli, and estimate their peak force generating capabilities across the individual cervical motion segments. STUDY DESIGN: Biomechanical force modelling based on anatomical data...
October 16, 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/29105818/simplified-profunda-artery-perforator-pap-flap-design-using-power-doppler-ultrasonography-pdu-a-prospective-study
#12
Andreas Kehrer, Ming-Yi Hsu, Yu-Ting Chen, Neil S Sachanandani, Chung-Kan Tsao
INTRODUCTION: Optimal design of PAP flaps requires precise perforator mapping. In a systematic review, Doppler ultrasonography demonstrated the highest sensitivity and positive predictive value (PPV). We present a prospective study of PAP flap design comparing PDU, handheld Doppler (HHD), and clinical findings. METHODS: From May to July 2016, 12 head and neck cancer patients receiving PAP flaps were examined with PDU and HHD. We used PDU to evaluate number, course, emergence point, peak systolic velocity (PSV), and arterial diameter of perforators...
November 4, 2017: Microsurgery
https://www.readbyqxmd.com/read/29100806/comparison-of-sacrificed-healthy-aorta-during-thoracoabdominal-aortic-aneurysm-repair-using-off-the-shelf-endovascular-branched-devices-and-open-surgery
#13
Luca Bertoglio, Tommaso Cambiaghi, Ciro Ferrer, Domenico Baccellieri, Fabio Verzini, Germano Melissano, Roberto Chiesa, Yamume Tshomba
BACKGROUND: Off-the-shelf devices for branched endovascular aortic repair of thoracoabdominal aortic aneurysm (TAAA) have been developed to overcome the manufacturing- and logistics-related delays characteristic of device customization. Nonetheless, the structural requirements of branched endovascular aortic repair, together with the need for additional thoracic components to suit different anatomies, might lead to a large sacrifice of healthy aorta. METHODS: We enrolled 18 consecutive TAAA patients treated between 2010 and 2016 in two centers employing the off-the-shelf t-Branch (Cook Medical, Bloomington, Ind) device (TB group)...
October 31, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29100787/facility-volume-and-survival-in-nasopharyngeal-carcinoma
#14
Emi J Yoshida, Michael Luu, John M David, Sungjin Kim, Alain Mita, Kevin Scher, Stephen L Shiao, Mourad Tighiouart, Nancy Y Lee, Allen S Ho, Zachary S Zumsteg
INTRODUCTION: Definitive treatment of nasopharyngeal carcinoma (NPC) is challenging owing to its rarity, complicated regional anatomy, and the intensity of therapy. In contrast to other head and neck cancers, the effect of facility volume has not been well described for NPC. METHODS AND MATERIALS: The National Cancer Database was queried for patients with stage II-IVB NPC diagnosed from 2004 to 2014 and treated with definitive radiation. Patients with incomplete staging, unknown receipt or timing of treatment, unknown follow-up duration, incomplete socioeconomic information, or treatment outside the reporting facility were excluded...
September 28, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29097346/preliminary-experience-with-the-use-of-ultra-low-profile-endografts
#15
Daniela Mazzaccaro, Giovanni Malacrida, Bruno Amato, Salvatore Alessio Angileri, Anna Maria Ierardi, Giovanni Nano
PURPOSE: We aimed to report a preliminary single-center experience of elective endovascular aortic repair (EVAR) using ultra-low profile (ULP) endografts of 14 F outer diameter. METHODS: Data of 67 consecutive patients who underwent EVAR using either Ovation (group A, n=30) or Incraft (group B, n=37) endografts were retrospectively analyzed. RESULTS: Aorto-iliac anatomy was significantly different between the two groups, as patients of group A had a greater thrombotic apposition on proximal aortic neck (thrombus thickness: 7...
November 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/29092758/navigation-guided-resection-of-maxillary-tumours-the-accuracy-of%C3%A2-computer-assisted-surgery-in-terms-of-control-of-resection-margins%C3%A2-a-feasibility-study
#16
Achille Tarsitano, Francesco Ricotta, Gennaro Baldino, Giovanni Badiali, Angelo Pizzigallo, Valerio Ramieri, Piero Cascone, Claudio Marchetti
INTRODUCTION: Surgical treatment of maxillary tumours is often highly complex. The three-dimensional anatomy of the mid-face renders both correct intraoperative orientation and adequate oncological safety difficult to obtain. Recently, computer-assisted techniques and intraoperative navigation have been applied to oncological surgery treating head and neck cancer. However, only a few studies have explored whether preoperative virtual resection planning and intraoperative control of resection margins allow assessment of the surgical margins of the tumour...
September 30, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29091339/undergraduate-dental-students-perceptions-of-head-and-neck-anatomy-teaching-in-australia
#17
N M Hassan, R Akhter, H Al-Aubaidy, A Flatau
INTRODUCTION: Most Australian universities have abbreviated the anatomy curriculum and modified its mode of delivery. This study examines dental student perceptions of different methods of head and neck anatomy teaching with respect to the adequacy of allocated time and the relative meaningfulness of the teaching methods. METHODS: All second-year students in the School of Dentistry and Health Sciences at Charles Sturt University (CSU) were invited to complete a matrix-grid questionnaire...
November 1, 2017: European Journal of Dental Education: Official Journal of the Association for Dental Education in Europe
https://www.readbyqxmd.com/read/29082563/magnetic-resonance-imaging-of-the-upper-airway-in-patients-with-quadriplegia-and-obstructive-sleep-apnea
#18
Fergal J O'donoghue, Hailey Meaklim, Lynne Bilston, Alice Hatt, Alan Connelly, Graeme Jackson, Shawna Farquharson, Kate Sutherland, Peter A Cistulli, Douglas J Brown, David J Berlowitz
The aim of this study was to investigate upper airway anatomy in quadriplegics with obstructive sleep apnea. Fifty subjects were recruited from three hospitals in Australia: people with quadriplegia due to spinal cord injury and obstructive sleep apnea (n = 11), able-bodied people with obstructive sleep apnea (n = 18), and healthy, able-bodied controls (n = 19). All underwent 3-Tesla magnetic resonance imaging of their upper airway. A subgroup (n = 34) received a topical vasoconstrictor, phenylephrine and post-phenylephrine magnetic resonance imaging...
October 30, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/29079071/occult-spinal-cord-injury-after-blunt-force-trauma-in-a-patient-with-achondroplasia-a-case-report-and-review-of-trauma-management-strategy
#19
Martin Huecker, Zach Harris, Eric Yazel
BACKGROUND: Achondroplastic dwarfism is associated with anatomic abnormalities that can predispose to occult injury and challenges in trauma management. Airway anatomy is problematic due to macrocephaly, midface hypoplasia, and a narrow nasopharynx. Manipulation of the neck is very dangerous due to the high likelihood of preexisting cervicomedullary stenosis. Restrictive lung disease and obstructive sleep apnea may complicate respiratory status. Peripheral and central venous access can be difficult to obtain...
October 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29076227/ahns-series-do-you-know-your-guidelines-review-of-current-knowledge-on-laryngeal-cancer
#20
Akina Tamaki, Brett A Miles, Miriam Lango, Luiz Kowalski, Chad A Zender
The following article is part of a series in an initiative by the American Head and Neck Society's Education Committee and will review clinical practice guidelines for head and neck oncology. The primary goal is to increase awareness of current best practices pertaining to head and neck surgery and oncology. This manuscript is a review of current knowledge in laryngeal cancer with a focus on anatomy, epidemiology, diagnosis, evaluation, and treatment.
October 27, 2017: Head & Neck
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