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Maxillary surgery

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https://www.readbyqxmd.com/read/27906054/is-radical-surgery-of-an-inverted-papilloma-of-the-maxillary-sinus-obsolete-a-case-report
#1
Vedat Yildirim, Niels Christian Pausch, Dirk Halama, Heinz-Theo Lübbers, Ayhan Yildirim
BACKGROUND: Sinonasal inverted papilloma is a locally aggressive tumor arising from the Schneiderian membrane which lines the nasal cavity and paranasal sinuses. Aggressive surgical approaches, such as lateral rhinotomy, were used until recently for complete removal of the inverted papilloma. Currently, endoscopic resection is the gold standard in the treatment of inverted papilloma. However, there are situations that justify an open approach. For example there are studies that report a higher postoperative recurrence rate after endonasal endoscopic resection, particularly in the treatment of recurrent diseases...
December 1, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27903112/bypass-surgery-to-treat-symptomatic-fusiform-dilation-of-the-internal-carotid-artery-following-craniopharyngioma-resection-report-of-2-cases
#2
Long Wang, Xiang'en Shi, Fangjun Liu, Hai Qian
Fusiform dilation of the internal carotid artery (FDICA) is an infrequent vascular complication following resection of suprasellar lesions in the pediatric population, and its course appears to be benign without apparent clinical symptoms. However, data correlating symptomatic FDICA with bypass surgery are scarce. The authors here report 2 symptomatic cases that were treated using internal maxillary artery bypass more than 5 years after total removal of a craniopharyngioma at an outside institution. Both cases of FDICA were resected to relieve the mass effect and to expose the craniopharyngioma...
December 2016: Neurosurgical Focus
https://www.readbyqxmd.com/read/27901210/effects-of-alveolar-bone-displacement-with-segmental-osteotomy-micro-ct-and-histomorphometric-analysis-in-rats
#3
Taegun Kim, Won Lee, Sang-Ho Baek, Sungwoon Pyo, Yoon-Ah Kook, Mohamed Bayome, Insoo Kim
The purpose of this study was to evaluate the effects of segmental osteotomy on the blood vessels and osteoclasts in rats using micro-computed tomography (micro-CT) and histomorphometric analysis. After segmental osteotomy was performed around the maxillary first molars of 36 male Sprague-Dawley rats (n = 72), the samples were divided into a control group (no displacement), 0.5 D group (0.5 mm buccal displacement) and 1.0 D group (1.0 mm buccal displacement) (n = 24/group). At 1, 2, 4 and 8 weeks after surgery, changes in the blood vessel volume were investigated using micro-CT with perfusion of radiopaque silicone rubber...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27899081/endoscopic-endonasal-pituitary-adenomas-surgery-the-surgical-experience-of-178-consecutive-patients-and-learning-curve-of-two-neurosurgeons
#4
Xuefei Shou, Ming Shen, Qilin Zhang, Yichao Zhang, Wenqiang He, Zengyi Ma, Yao Zhao, Shiqi Li, Yongfei Wang
BACKGROUND: We aim to study surgical technique and analyze the related factors affecting tumor total removal and postoperative endocrinological remission for endoscopic endonasal pituitary adenomas surgery. METHODS: We retrospectively analyzed 178 endoscopic endonasal pituitary adenomas surgery from March 2011 to May 2014. Endonasal approach included the routine transnasal-sphenoidal approach, transnasal- maxillary sinus approach in four cases and transnasal-clivus approach in one case...
November 30, 2016: BMC Neurology
https://www.readbyqxmd.com/read/27898165/sinus-augmentation-and-simultaneous-implant-placement-success-pilot-study-2008-2011
#5
Melissa Tormos, Jose Morales, Natalia Guevara, Augusto R Elías, Lydia López, Omar García
OBJECTIVE: 1) To describe implant success in the posterior maxillary when a sinus augmentation procedure was performed simultaneously with implant placement and then compare differences in success when sinus augmentation was delayed in patients attending the maxillofacial surgery clinic of the University of Puerto Rico, 2008 through 2011. 2) To determine sociodemographic characteristics, ASA classification, graft material, and final restoration and, using a questionnaire, determine as well patient satisfaction...
December 2016: Puerto Rico Health Sciences Journal
https://www.readbyqxmd.com/read/27896530/maxillary-sinus-mucocele-predisposing-factors-clinical-presentations-and-treatment
#6
Mosaad Abdel-Aziz, Hassan El-Hoshy, Khaled Azooz, Nader Naguib, Ahmed Hussein
PURPOSE: Maxillary sinus mucocele (MSM) is uncommon lesion and has many presenting features. The aim of this study was to detect the possible predisposing factors, clinical characteristics, and to assess the efficacy of trans-nasal endoscopic treatment of this lesion. METHODS: This retrospective multicenter study was conducted on 36 patients with MSM, the diagnosis of the disease was based on computed tomographic criteria. The patients' history, presenting features, and surgical management were reviewed...
November 28, 2016: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27896214/a-case-of-severe-mandibular-retrognathism-with-bilateral-condylar-deformities-treated-with-le-fort-i-osteotomy-and-two-advancement-genioplasty-procedures
#7
Masahiro Nakamura, Takeshi Yanagita, Tatsushi Matsumura, Takashi Yamashiro, Seiji Iida, Hiroshi Kamioka
We report a case involving a young female patient with severe mandibular retrognathism accompanied by mandibular condylar deformity that was effectively treated with Le Fort I osteotomy and two genioplasty procedures. At 9 years and 9 months of age, she was diagnosed with Angle Class III malocclusion, a skeletal Class II jaw relationship, an anterior crossbite, congenital absence of some teeth, and a left-sided cleft lip and palate. Although the anterior crossbite and narrow maxillary arch were corrected by interceptive orthodontic treatment, severe mandibular hypogrowth resulted in unexpectedly severe mandibular retrognathism after growth completion...
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27891316/histologic-and-histomorphometric-evaluation-of-two-grafting-materials-cenobone-and-itb-mba-in-open-sinus-lift-surgery
#8
Babak Amoian, Maryam Seyedmajidi, Hamidreza Safipor, Sediqe Ebrahimipour
AIMS AND OBJECTIVES: Alveolar ridge reduction caused after tooth extraction can be minimized through ridge preservation and application of graft materials. The aim of this study was to compare the histologic and histomorphometric aspects of bone particulated allografts, Cenobone and ITB-MBA, in the reconstruction of vertical alveolar ridge after maxillary sinus augmentation. MATERIALS AND METHODS: This clinical trial was performed among 20 patients. The participants were randomly divided into two groups of 10 participants...
September 2016: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/27888912/extended-endoscopic-and-open-sinus-surgery-for-refractory-chronic-rhinosinusitis
#9
REVIEW
Jean Anderson Eloy, Emily Marchiano, Alejandro Vázquez
This review discusses extended endoscopic and open sinus surgery for refractory chronic rhinosinusitis. Extended maxillary sinus surgery including endoscopic maxillary mega-antrostomy, endoscopic modified medial maxillectomy, and inferior meatal antrostomy are described. Total/complete ethmoidectomy with mucosal stripping (nasalization) is discussed. Extended endoscopic sphenoid sinus procedures as well as their indications and potential risks are reviewed. Extended endoscopic frontal sinus procedures, such the modified Lothrop procedure, are described...
February 2017: Otolaryngologic Clinics of North America
https://www.readbyqxmd.com/read/27886093/hmgb1-promotes-intraoral-palatal-wound-healing-through-rage-dependent-mechanisms
#10
Salunya Tancharoen, Satoshi Gando, Shrestha Binita, Tomoka Nagasato, Kiyoshi Kikuchi, Yuko Nawa, Pornpen Dararat, Mika Yamamoto, Somphong Narkpinit, Ikuro Maruyama
High mobility group box 1 (HMGB1) is tightly connected to the process of tissue organization upon tissue injury. Here we show that HMGB1 controls epithelium and connective tissue regeneration both in vivo and in vitro during palatal wound healing. Heterozygous HMGB1 (Hmgb1(+/-)) mice and Wild-type (WT) mice were subjected to palatal injury. Maxillary tissues were stained with Mallory Azan or immunostained with anti-HMGB1, anti-proliferating cell nuclear antigen (PCNA), anti-nuclear factor-κB (NF-κB) p50 and anti-vascular endothelial growth factor (VEGF) antibodies...
November 23, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27885569/delayed-retrieval-of-a-displaced-maxillary-third-molar-from-infratemporal-space-via-trans-sinusoidal-approach-a-case-report-and-the-review-of-the-literature
#11
REVIEW
Metin Sencimen, Aydin Gülses, Sencer Secer, Tamer Zerener, Savaş Özarslantürk
AIM: The aim of this case report is to present the trans-sinusoidal pathway used to remove a displaced maxillary third molar from the infratemporal fossa and review the English literature regarding the techniques used. CASE REPORT: A 21-year-old male patient was referred with the findings of an oroantral fistula on the left maxillary vestibular first molar region and slight restriction of mouth opening. The patient underwent a maxillary sinus surgery in order to remove a sinus retention cyst via Caldwell-Luc access in a dental clinic 4 years ago...
November 24, 2016: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27879599/total-human-eye-allotransplantation-developing-surgical-protocols-for-donor-and-recipient-procedures
#12
Edward H Davidson, Eric W Wang, Jenny Y Yu, Juan C Fernandez-Miranda, Dawn J Wang, Nikisha Richards, Maxine Miller, Joel S Schuman, Kia M Washington
BACKGROUND: Vascularized composite allotransplantation of the eye is an appealing, novel method for reconstruction of the nonfunctioning eye. The authors' group has established the first orthotopic model for eye transplantation in the rat. With advancements in immunomodulation strategies together with new therapies in neuroregeneration, parallel development of human surgical protocols is vital for ensuring momentum toward eye transplantation in actual patients. METHODS: Cadaveric donor tissue harvest (n = 8) was performed with orbital exenteration, combined open craniotomy, and endonasal approach to ligate the ophthalmic artery with a cuff of paraclival internal carotid artery, for transection of the optic nerve at the optic chiasm and transection of cranial nerves III to VI and the superior ophthalmic vein at the cavernous sinus...
December 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27876739/-the-state-of-the-nasal-mucosa-and-the-paranasal-sinuses-in-the-late-postoperative-period-following-radical-and-minimally-invasive-surgery
#13
M M Magomedov, D F Zeinalova, D V Andriyashkin, N M Magomedova, A E Starostina, M V Zvereva
We have investigated the functional state of the mucous membrane of the nasal cavity and maxillary sinus after radical and minimally invasive surgical procedures during the log-term postoperative period, i.e. three and more months after the intervention. The materials for the study were brushings and histological biopsies; in addition, the functional parameters of the mucous membranes of the nose and maxillary sinuses were estimated before and after surgery. It has been found that the type of the surgical intervention on the inferior turbinate bones for the treatment of chronic rhinitis, such as gentle turbinotomy, has no significant influence on the state of the mucous membrane...
2016: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/27871286/maxillary-calcifying-epithelial-odontogenic-tumor-with-sinus-and-buccal-vestibule-extension-a-case-report-and-immunohistochemical-study
#14
Cristina Munteanu, Daniel Pirici, Alex Emilian Stepan, Adrian Camen, Claudiu Margaritescu
BACKGROUND: Calcifying epithelial odontogenic tumor (CEOT) is a rare benign neoplasia, locally aggressive, that tends to invade bone and adjacent soft tissues. This case report describes the thirteenth known case of CEOT with maxillary sinus extension and the second one that also involves the buccal vestibule mucosa with peculiar histopathological and immunohistochemical data. CASE PRESENTATION: Here we report the case of a 45-year-old female with a CEOT diagnosed and treated at the Oral & Maxillofacial Surgery Department, County Clinical Emergency Hospital of Craiova, Romania...
November 21, 2016: Diagnostic Pathology
https://www.readbyqxmd.com/read/27869357/the-impact-of-endoscopic-sinus-surgery-on-paranasal-physiology-in-simulated-sinus-cavities
#15
Ravi Jain, Haribalan Kumar, Merryn Tawhai, Richard Douglas
BACKGROUND: Surgery improves symptoms for the majority of chronic rhinosinusitis (CRS) patients; however, physiological changes in the sinus cavities remain poorly characterized. Direct measurement of changes in airflow, pressure, temperature, humidity, and intranasal spray distribution following surgery is technically challenging. Accordingly, we have used computational fluid dynamic modeling to quantify how these parameters change postoperatively. METHODS: Computed tomography images from a normal control, a patient with CRS preoperatively and postoperatively, and a patient following an endoscopic Lothrop procedure (ELP) were used to create 4 three-dimensional models of the sinus cavities...
November 21, 2016: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/27863150/sinonasal-adenoid-cystic-carcinoma-a-population-based-analysis-of-694-cases
#16
Aykut A Unsal, Sei Y Chung, Albert H Zhou, Soly Baredes, Jean Anderson Eloy
BACKGROUND: Currently, limited literature exists about sinonasal adenoid cystic carcinoma (SNACC). In this study, we analyze the demographics, survival, and treatment efficacy of this rare entity. METHODS: Our study was a retrospective population-based analysis of SNACC in the Surveillance, Epidemiology, and End Results (SEER) database assessing the 40-year time-frame of 1973 to 2013. RESULTS: Six hundred ninety-four SNACC patients were identified; 53...
November 11, 2016: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/27853012/outcomes-of-endoscopic-dacryocystorhinostomy-experience-of-a-fellowship-trainee-at-a-tertiary-care-center
#17
Saurabh Kamal, Mohammad Javed Ali, Akshay Gopinathan Nair
AIM: The study aims to report a single trainee's experience of learning and performing endoscopic endonasal dacryocystorhinostomy (En-DCR). SETTINGS AND DESIGN: This study was a retrospective, interventional case series. SUBJECTS AND METHODS: Fifty-four eyes of fifty patients presenting at a tertiary eye care center over 1 year were included in the study. All cases underwent endoscopic DCR with mitomycin-C and silicone intubation. The parameters studied included demographics, clinical features, intraoperative details, and postoperative ostium evaluation...
September 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27847815/comparison-of-bone-resorption-rates-after-intraoral-block-bone-and-guided-bone-regeneration-augmentation-for-the-reconstruction-of-horizontally-deficient-maxillary-alveolar-ridges
#18
B Alper Gultekin, Elcin Bedeloglu, T Emre Kose, Eitan Mijiritsky
Purpose. Bone atrophy after tooth loss may leave insufficient bone for implant placement. We compared volumetric changes after autogenous ramus block bone grafting (RBG) or guided bone regeneration (GBR) in horizontally deficient maxilla before implant placement. Materials and Methods. In this retrospective study, volumetric changes at RBG or GBR graft sites were evaluated using cone-beam computed tomography. The primary outcome variable was the volumetric resorption rate. Secondary outcomes were bone gain, graft success, and implant insertion torque...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27847754/microsurgical-re-treatment-of-an-endodontically-treated-tooth-with-an-apically-located-incomplete-vertical-root-fracture-a-clinical-case-report
#19
Silvio Taschieri, Massimo Del Fabbro, Ahmed El Kabbaney, Igor Tsesis, Eyal Rosen, Stefano Corbella
Although it is challenging, the early diagnosis of a vertical root fracture (VRF) is crucial in order to ensure tooth preservation. The purpose of this clinical case report was to describe reparative surgery performed to treat a tooth affected by an incomplete VRF. A 26 year old male patient was suspected to have a VRF in a maxillary left central incisor, and an exploratory flap was performed in order to confirm the diagnosis. After detecting the fracture, the lesion was surgically treated, the fracture and the infected root-end were removed, and a platelet-rich plasma membrane was used to cover the defect in order to prevent bacterial migration...
November 2016: Restorative Dentistry & Endodontics
https://www.readbyqxmd.com/read/27847742/conservative-approach-to-recurrent-calcifying-cystic-odontogenic-tumor-occupying-the-maxillary-sinus-a-case-report
#20
Yongsoo Kim, Bo Eun Choi, Seung-O Ko
Calcifying cystic odontogenic tumor (CCOT) is an uncommon benign cystic neoplasm of the jaw that develops from the odontogenic epithelium. Invasion into the maxillary sinus by a CCOT is not a typical, and the recurrence of the cystic variant of CCOT in the posterior maxilla is rare. This report describes a recurrent CCOT occupying most of the maxillary sinus of a 24-year-old male patient. As a treatment, marsupialization was carried out as a means of decompression, and the involved teeth were all endodontically treated...
October 2016: Journal of the Korean Association of Oral and Maxillofacial Surgeons
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