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https://www.readbyqxmd.com/read/29166425/anatomy-of-the-sphenopalatine-artery-and-its-implications-for-transnasal-neurosurgery
#1
M Eordogh, A Grimm, I Gawish, L Patonay, R Reisch, H R Briner, G Baksa
BACKGROUND: The knowledge of sinonasal vasculature is inevitable in transnasal neurosurgery. We performed an anatomical study on the sphenopalatine artery from the perspective of skull base procedures. METHODOLOGY: To analyse the anatomical landmarks of the sphenopalatine artery, arterial skull corrosion casts (26 head halves) underwent endoscopic transnasal phantom surgery. Furthermore, we performed microsurgical dissection on formaldehyde-fixated cadavers with arterial perfusion (14 head halves) as well as studied Cone Beam CT-scans of anonymised patients and cadavers (115 head sides)...
November 22, 2017: Rhinology
https://www.readbyqxmd.com/read/29143871/head-and-neck-rhabdomyosarcoma-in-children-a-20-year-retrospective-study-at-a-tertiary-referral-center
#2
Sophia Marie Häußler, Carmen Stromberger, Heidi Olze, Georg Seifert, Steffen Knopke, Arne Böttcher
OBJECTIVE: The purpose of this study was to assess rhabdomyosarcomas (RMS) of the head and neck in pediatric patients with regard to clinical presentation, treatment, and survival. METHODS: Data were retrospectively obtained from patient charts with regard to RMS of the head and neck diagnosed between 1996 and 2016 at a tertiary referral center. Clinical course, treatment modalities, and side effects were analyzed. Survival analysis was carried out using the Kaplan-Meier method...
November 16, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29142801/idiopathic-acquired-dacryocystocele-presenting-only-with-epiphora-a-very-rare-case-report
#3
Muhammad Jahanzaib Anwar, Saad A Choudhry, Muhammad Aadil, Ahmer Asif, Atif Ameer
A 42-years-old male presented with left medial canthal swelling, accompanied with only mild epiphora. There was no history of dacryocystitis, mid-facial trauma, surgery, or bloody tears. On examination, there was an immobile, subcutaneous, non-inflammatory mass below the medial canthal tendon. Lacrimal irrigation showed blockade at the nasolacrimal duct. A computerized axial tomography (CAT) scan revealed a non-enhancing, low-density, cystic lesion at the inferomedial margin of the orbit. There were no signs of bony erosion, consistent with idiopathic acquired dacryocystocele...
September 4, 2017: Curēus
https://www.readbyqxmd.com/read/29140386/retrospective-study-of-survival-of-extraoral-endosseous-craniofacial-implants-in-head-and-neck-surgery-patients
#4
Brent J Woods, Arun Chandu
PURPOSE: To determine the survival rate of implants placed in different craniofacial locations and factors affecting survival. MATERIALS AND METHODS: This study retrospectively reviewed a consecutive series of patients treated at the Royal Melbourne Hospital who received craniofacial implants for an array of benign and malignant conditions. Implant survival per site and cumulative survival were determined. Surgical and implant variables were assessed using the Kaplan-Meier and Cox Proportional Hazards Models...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29131914/pediatric-orbital-primitive-neuroectodermal-tumors
#5
Tayyab Afghani, Hassan Mansoor, Syed Naeem Raza Hamdani
PURPOSE: To present the clinical, radiological, histopathological, immunohistochemical features and the follow-up of orbital primitive neuroectodermal tumors (PNETs) in pediatric patients along with a review of the literature. METHODS: A retrospective analysis of all diagnosed cases of orbital PNET was done. Patients' ophthalmic findings, imaging, immunohistochemistry, metastatic work-up, treatment, globe salvation, and survival were documented and a mini literature review of orbital PNET was performed...
November 11, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/29131858/the-composition-and-initial-evaluation-of-a-grimace-scale-in-ferrets-after-surgical-implantation-of-a-telemetry-probe
#6
Marsinah L Reijgwart, Nico J Schoemaker, Riccardo Pascuzzo, Matthew C Leach, Melanie Stodel, Loes de Nies, Coenraad F M Hendriksen, Miriam van der Meer, Claudia M Vinke, Yvonne R A van Zeeland
Reliable recognition of pain is difficult in ferrets as many currently available parameters are non-specific, inconsistent and/or impractical. Grimace scales have successfully been applied to assess pain in different animal species and might also be applicable to ferrets. To compose a Ferret Grimace Scale (FGS), we studied the facial musculature of ferrets and compared lateral photographs of 19 ferret faces at six time points before and after intraperitoneal telemetry probe implantation. We identified the Action Units (AUs) orbital tightening, nose bulging, cheek bulging, ear changes and whisker retraction as potential indicators of pain in ferrets...
2017: PloS One
https://www.readbyqxmd.com/read/29127744/-endocrine-orbitopathy-the-present-view-of-a-clinical-endocrinologist
#7
Jan Jiskra
Graves orbitopathy (GO) occurs in 25-50 % cases of Graves disease. Only in 5 % of patients the eye threatening GO is present. About 5-10 % and 10 % cases are present in euthyroid and hypothyroid patients respectively. All patients with GO should be assessed for activity (clinical activity score - CAS) and severity of the disease. Basic preconditions of the treatment are maintenance of euthyroidism, an effort to stop smoking, and referring of patients with moderate to severe and sight threatening GO to specialized thyroid eye centers...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29124002/three-dimensional-reconstruction-of-late-post-traumatic-orbital-wall-defects-by-customized-implants-using-cad-cam-3d-stereolithographic-models-a-case-report
#8
Vignesh U, Divya Mehrotra, Dichen, Vaibhav Anand, Debraj Howlader
Aim: Purpose of this case report is to highlight the precision and accuracy obtained with patient specific implants for orbital reconstruction designed on the basis of volumetric analysis of orbital computed tomographic scan (CT) scans using virtual planning, computerised designing and manufacturing and stereolithographic models to correct late post-traumatic orbital deformities such as enophthalmos and diplopia. Material and methods: This case report describes a patient who visited our outpatient clinic for correction of enophthalmos and persistent diplopia in upward gaze, seven months post trauma...
September 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/29110122/-suprachoroidal-minimally-invasive-glaucoma-surgery-procedures-and-clinical-outcome
#9
REVIEW
C Erb
The uveoscleral outflow route is via the ciliary muscles into the suprachoroidal spaces and then to the orbital blood and lymph systems. The main driving force behind this uveoscleral outflow is the high oncotic pressure in the choroidal vessels. Currently, the CyPass microstent is the only available suprachoroidal device for ab interno minimally invasive glaucoma surgery. The CyPass achieves a maximum reduction of intraocular pressure (IOP) to 16-17 mm Hg over 12-24 months and is approved for mild to moderate primary open-angle glaucoma...
November 6, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/29109867/clinical-profile-of-unilateral-proptosis-in-a-tertiary-care-centre
#10
Susan Dsouza, Pooja Kandula, Gurudutt Kamath, Manjunath Kamath
Proptosis, the forward protrusion of the eyeball, is a common manifestation of a wide variety of diseases inside the orbit and its spaces. Its diagnosis is usually a combined effort of the ophthalmologist, otolaryngologist, neurosurgeon, and radiologist. A clinical study of twenty-five cases with unilateral proptosis were studied in different age groups over a period of about 3 years under different headings like distribution, clinical features, radiological features, histopathological aspects, management, and outcomes of diseases...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29101581/a-case-of-traumatic-infraorbital-neuroma
#11
Shahriar Amjadi, Weng Onn Chan, Saul Rajak, David K Morrissey, Sumu Simon, Gary Davis, Dinesh Selva, Alkis J Psaltis
A 53-year-old Afghan man presented with a 12-month history of left proptosis, diplopia and facial swelling 20 years after a bomb blast injury. Magnetic resonance and computed tomography imaging revealed a well-circumscribed lesion centred within the left inferior orbit/superior maxillary sinus along with left orbital fracture. Histopathology and immunostaining of the debulked lesion were consistent with traumatic neuroma of the infraorbital nerve. Infraorbital neuromas have developed following orbital decompression surgeries but have not been reported previously following non-surgical trauma...
December 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29101438/measurement-of-the-area-of-corneal-exposure-using-digital-image-and-its-application-during-assessment-for-blepharoplasty
#12
Kisoo Park, Ziyi Guo, Dae Hwan Park
BACKGROUND: The normal morphological and functional values of orbits vary according to race, sex, and age. We measured the palpebral fissure using the marginal reflex distance (MRD1), marginal limbal distance (MLD), and vertical height of the palpebral fissure (VHPF). Unfortunately, these measurements are all one-dimensional figures that measure the distance between two points; they have limitations when it comes to measuring the three-dimensional ocular surface. Therefore, this study used the area of corneal exposure (ACE), which shows a two-dimensional area, to measure changes between the sizes of eyes according to age...
November 3, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29100818/quantitative-assessment-of-orbital-fractures-in-asian-patients-ct%C3%A2-measurement-of-orbital-volume
#13
Kensuke Sugiura, Harumoto Yamada, Takayuki Okumoto, Yoshikazu Inoue, Satoko Onishi
Enophthalmos is caused by an increase of orbital volume after blowout fracture and is one of the most critical complications of such fractures, but is often masked by swelling soon after injury. If surgery is performed after swelling resolves, it becomes more difficult to treat enophthalmos because of atrophy and fibrosis. Accordingly, it is important to estimate the severity of enophthalmos soon after injury. We developed a new criterion for determining whether orbital fractures are indicated for surgery in Asian patients using analysis of orbital volume...
October 3, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29097021/zygomatico-orbital-artery-the-largest-artery-in-the-temporal-area
#14
Dong Hun Choi, Jeung Ryeol Eom, Jeong Woo Lee, Jung Dug Yang, Ho Yun Chung, Byung Chae Cho, Kang Young Choi
The zygomatico-orbital artery is the largest artery in the temporal area. With the increasing number of reconstructive and aesthetic surgeries in the area, in-depth understanding of this artery is needed. Thus, the aim of this anatomical study was to determine more information on the zygomatico-orbital artery using contrast-enhanced three-dimensional computer tomography (CT) and color-flow Doppler sonography. On the basis of CT images taken between October 2015 and October 2016 for diagnosing and treating maxillofacial conditions, 50 patients were selected...
October 16, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29096933/modified-lateral-orbital-wall-decompression-in-graves-orbitopathy-using-computer-assisted-planning
#15
S Spalthoff, P Jehn, R Zimmerer, M Rana, N-C Gellrich, J Dittmann
Graves' orbitopathy, a condition seen in the autoimmune syndrome Graves' disease, affects the fatty tissue and muscles inside the orbit. Graves' orbitopathy is associated with increasing exophthalmos and sometimes leads to compressive dysthyroid optic neuropathy, resulting in progressive vision loss. Dysthyroid compressive optic neuropathy, functional problems, and cosmetic problems are the main indications for surgical decompression of the orbit, especially if conservative treatment has not led to a reduction in symptoms...
October 30, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29095826/pediatric-orbital-wall-fractures-prognostic-factors-of-diplopia-and-ocular-motility-limitation
#16
Yung Ju Yoo, Hee Kyung Yang, Namju Kim, Jeong-Min Hwang
OBJECTIVES: To investigate the factors affecting recovery of diplopia and limited ocular motility in pediatric patients who underwent surgery for orbital wall fracture. DESIGN: Retrospective observational case series. METHODS: In this retrospective observational case series, 150 pediatric patients (1-18 years old) who were diagnosed with orbital medial wall or floor fracture and underwent corrective surgery between 2004 and 2016 at Seoul National University Bundang Hospital were included...
2017: PloS One
https://www.readbyqxmd.com/read/29093739/aggressive-adenoid-cystic-carcinoma-of-maxillary-sinus-in-a-43-year-old-male-rare-case-report-and-review-of-literature
#17
Koorosh Rahmani, Shokouh Taghipour Zahir, Mohammad Baghi Yazdi, Alireza Navabazam
Adenoid cystic carcinoma (ACC) is a rare malignant tumor, mostly involving the minor salivary glands. Herein, we present a case of ACC in a 43-year-old man with symptoms of dental abscess as the initial presentation of the tumor. In spiral computed tomography (CT) scan, soft tissue mass with the erosion of maxillary sinus wall on the right side of the alveolar ridge was evident. Histopathological examination of the excised tumor with immunohistochemical studies (C-kit, Vimentin, pan-cytokeratin, p53, p63, and ki67 positive reaction) confirmed grade 2 ACC in the maxillary sinus...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/29093554/the-prevalence-of-double-eyelid-and-the-3d-measurement-of-orbital-soft-tissue-in-malays-and-chinese
#18
Ting Yin Lu, Kathreena Kadir, Wei Cheong Ngeow, Siti Adibah Othman
This study aimed to determine the prevalence of double eyelid among two main Mongoloid ethnicities, the Malays and Chinese who reside in Malaysia. We also measured their periorbital tissue parameters for application in anthropology, optometry, ophthalmology, oculoplastic surgery and maxillofacial trauma surgery. The images of the 103 Malay and 97 Chinese volunteers were captured using indirect 3D photogrammetry, and quantitative measurement was obtained using the software provided by the manufacturer. All Malays and 70...
November 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29090202/reconstruction-of-large-orbital-floor-defect-caused-by-maxillary-sinus-mucocele
#19
Seung Bum Pyo, Jin Kyung Song, Hong Sil Ju, Seong Yoon Lim
Maxillary sinus mucocele can occur due to many medical factors such as chronic infection, allergic sinonasal disease, trauma, and previous surgery. However, it occurs mainly after Caldwell-Luc operation, usually more than 10 years after surgery. There are a few cases of maxillary sinus mucocele with ocular symptoms. Also, a case causing ocular symptoms because of invasion to the orbital floor is rare. Therefore, we report a case of a 55-year-old male patient who underwent Caldwell-Luc operation about 30 years ago...
September 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/29089253/use-of-a-monopolar-microneedle-device-in-a-transconjunctival-retroseptal-approach
#20
Thomas Gander, Claudio Rostetter, Michael Blumer, Maximilian Wagner, Paul Schumann, Daniel B Wiedemeier, Martin Rücker, Harald Essig
Transconjunctival approach is a standard procedure to address fractures of orbit and the infraorbital rim. Modifications such as transcaruncular or lateral canthal widening allow for extended orbital wall exposure. Especially concerning aesthetics, the transconjunctival approach shows benefits compared to the transcutaneous incisions, such as the transciliary and infraorbital access. Moreover, transconjunctival approach is favored in the literature concerning lid retraction. Monopolar devices have become popular in surgery in the past decades because of good depth control and simultaneous hemostasis with consequently improved overview...
September 30, 2017: Journal of Cranio-maxillo-facial Surgery
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