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Acoustic neuroma surgery

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https://www.readbyqxmd.com/read/30024419/pearls-for-the-middle-fossa-approach-in-acoustic-neuroma-surgery
#1
Kevin A Peng, Gregory P Lekovic, Eric P Wilkinson
PURPOSE OF REVIEW: To discuss the use of the middle fossa craniotomy for resection of vestibular schwannomas; to present pearls of and modifications to the approach. RECENT FINDINGS: The middle fossa craniotomy allows for hearing preservation in the resection of intracanalicular vestibular schwannomas. Over recent years, the approach has been modified to address larger tumors with a limited cerebellopontine angle component. Positive identification of the superior semicircular canal allows for rapid exposure of the internal auditory canal (IAC)...
July 17, 2018: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/29904732/cochlea-sparing-acoustic-neuroma-treatment-with-4%C3%AF-radiation-therapy
#2
Kaley Woods, Percy Lee, Tania Kaprealian, Isaac Yang, Ke Sheng
Purpose: This study investigates whether 4π noncoplanar radiation therapy can spare the cochleae and consequently potentially improve hearing preservation in patients with acoustic neuroma who are treated with radiation therapy. Methods and materials: Clinical radiation therapy plans for 30 patients with acoustic neuroma were included (14 stereotactic radiation surgery [SRS], 6 stereotactic radiation therapy [SRT], and 10 intensity modulated radiation therapy [IMRT])...
April 2018: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/29889791/quality-of-life-after-translabyrinthine-vestibular-schwannoma-resection-reliability-of-the-german-panqol-questionnaire
#3
Marcel Fabian Glaas, Ralf Schäfer, Philipp Jansen, Matthias Franz, Igor Stenin, Thomas Klenzner, Jörg Schipper, Katrin Eysel-Gosepath, Julia Kristin
OBJECTIVE: To quantify the postoperative quality of life (QOL) of patients after translabyrinthine surgery for vestibular schwannoma (VS) using the German version of the Penn acoustic neuroma quality-of-life questionnaire (PANQOL) in a university hospital. METHODS: The PANQOL questionnaire was administered to 72 patients who were treated in our department with translabyrinthine surgery for VS between January 2007 and January 2017. Descriptive evaluations of results were performed in addition to analyses of the reliability and convergent validity of the results and a subgroup analysis...
July 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29889284/increased-hospital-surgical-volume-reduces-rate-of-30-and-90-day-readmission-after-acoustic-neuroma-surgery
#4
Robin Babadjouni, Timothy Wen, Daniel A Donoho, Ian A Buchanan, Steven Y Cen, Rick A Friedman, Arun Amar, Jonathan J Russin, Steven L Giannotta, William J Mack, Frank J Attenello
BACKGROUND: Hospital readmissions are commonly linked to elevated health care costs, with significant financial incentive introduced by the Affordable Care Act to reduce readmissions. OBJECTIVE: To study the association between patient, hospital, and payer factors with national rate of readmission in acoustic neuroma surgery. METHODS: All adult inpatients undergoing surgery for acoustic neuroma in the newly introduced Nationwide Readmissions Database from 2013 to 2014 were included...
June 8, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29799334/stereotactic-body-radiation-therapy-for-benign-spine-tumors-is-dose-de-escalation-appropriate
#5
Ronny Kalash, Scott M Glaser, John C Flickinger, Steven Burton, Dwight E Heron, Peter C Gerszten, Johnathan A Engh, Nduka M Amankulor, John A Vargo
OBJECTIVE Akin to the nonoperative management of benign intracranial tumors, stereotactic body radiation therapy (SBRT) has emerged as a nonoperative treatment option for noninfiltrative primary spine tumors such as meningioma and schwannoma. The majority of initial series used higher doses of 16-24 Gy in 1-3 fractions. The authors hypothesized that lower doses (such as 12-13 Gy in 1 fraction) might provide an efficacy similar to that found with the dose de-escalation commonly used for intracranial radiosurgery to treat acoustic neuroma or meningioma and with a lower risk of toxicity...
August 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29656878/postoperative-headache-following-treatment-of-vestibular-schwannoma-a-literature-review
#6
REVIEW
Ahad Sabab, Jaspreet Sandhu, Stephen Bacchi, Alistair Jukes, Andrew Zacest
Vestibular schwannoma (VS) is a brain tumour arising from Schwann cells that is typically closely associated with the vestibulocochlear nerve. Post-operative headaches (POH) are a potentially common complication of surgery for VS. Greatly differing rates of POH have previously been reported, particularly with different surgical approaches. The aim of this review is to identify and summarise the available peer-reviewed evidence on rates of POH following operative (or radiosurgery) treatment for VS, in addition to information about the treatment and prognosis of POH in these patients...
June 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29563978/the-medium-and-long-term-effect-of-electrophysiologic-monitoring-on-the-facial-nerve-function-in-minimally-invasive-surgery-treating-acoustic-neuroma
#7
Baohui Hou
The medium and long-term effects of electrophysiologic monitoring on the facial nerve function in minimally invasive surgery treating acoustic neuroma were studied. Sixty-two patients with acoustic neuroma taking minimally invasive surgeries in Dezhou Hospital from August 2014 to September 2015 were selected and randomly divided into 29 cases of the control group and 33 cases of the observation group. Intraoperative electrophysiologic monitoring was applied to the observation group, but not to the control group...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29554375/quality-of-life-in-patients-with-vestibular-schwannomas-following-gross-total-or-less-than-gross-total-microsurgical-resection-should-we-be-taking-the-entire-tumor-out
#8
Michael J Link, Morten Lund-Johansen, Christine M Lohse, Colin L W Driscoll, Ehrling Myrseth, Oystein Vesterli Tveiten, Matthew L Carlson
BACKGROUND: The goal of microsurgical removal of a vestibular schwannoma is to completely remove the tumor, to provide long-term durable cure. In many cases, less than gross total resection (GTR) is performed to preserve neurological, and especially facial nerve function. OBJECTIVE: To analyze long-term quality of life (QoL) in a cohort of patients who received either GTR or less than GTR. METHODS: Patients operated for vestibular schwannoma less than 3...
April 1, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29543218/-surgery-treatment-of-purulent-corneal-ulcers-associated-with-neuroparalytic-keratitis
#9
Evg A Kasparova, O I Sobkova, E A Kasparova, A A Kasparov
OBJECTIVE: The study objective was to develop a method for surgical treatment of advanced purulent corneal ulcer in the setting of neuroparalytic keratitis developed after acoustic neuroma removal and strokes. MATERIAL AND METHODS: The study included 12 patients (13 eyes). All patients underwent single-step keratoplasty, conjunctival autografting, and partial permanent tarsorrhaphy. RESULTS: The eye as an organ was spared in 100% of cases; vision was spared in 50% of cases and improved, from 0...
2018: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/29493720/risk-of-posterior-semicircular-canal-trauma-when-using-a-retrosigmoid-approach-for-acoustic-neuroma-surgery-and-role-of-endoscopy-an-imaging-study
#10
Ali Kouhi, Varasteh Vakili Zarch, Ali Pouyan
The rate of hearing preservation after vestibular schwannoma surgery is variable and is not as high as expected, possibly due to injuries to the posterior semicircular canal while exposing the tumor. The aim of this study was to estimate the risk of posterior semicircular canal injuries using temporal bone computed tomography (CT) scan findings. Temporal bone CT scans of 30 patients selected between 2013 and 2015 were studied. The median age of the patients was 40 years. Two planes were studied: (1) the axial plane that shows the common crus of the posterior semicircular canal and (2) the coronal plane that shows the two crura of the posterior semicircular canal...
January 2018: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/29436268/patient-decision-making-in-vestibular-schwannoma-a-survey-of-the-acoustic-neuroma-association
#11
Omid Moshtaghi, Khodayar Goshtasbi, Ronald Sahyouni, Harrison W Lin, Hamid R Djalilian
Objective To assess the decision-making process of patients with vestibular schwannoma (VS). Study Design Patients with VS completed a voluntary survey over a 3-month period. Setting Surveys were distributed online through email, Facebook, and member website. Subjects and Methods All patients had a diagnosis of VS and were members of the Acoustic Neuroma Association (ANA). A total of 789 patients completed the online survey. Results Of the 789 participants, 474 (60%) cited physician recommendation as a significant influential factor in deciding treatment...
May 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29420377/modified-lengthening-temporalis-myoplasty-involving-an-extended-lazy-s-incision-to-avoid-facial-scar-formation
#12
Tomito Oji, Akiteru Hayashi, Akihiro Ogino, Kiyoshi Onishi
BACKGROUND: Lengthening temporalis myoplasty is a faster and less invasive alternative to free muscle transfer for smile reconstruction. However, it requires a nasolabial fold incision, which leaves a midfacial scar. Based on esthetic considerations, a modified approach, involving an extended lazy-S (parotidectomy) incision instead of a nasolabial fold incision, was developed. METHODS: A cadaveric study involving 10 hemifaces was conducted. From February 2013 to March 2016, the modified lengthening temporalis myoplasty procedure was employed in 10 patients...
May 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29400585/fatal-collision-are-wireless-headsets-a-risk-in-treating-patients
#13
Cindy Sage, Lennart Hardell
Wireless-enabled headsets that connect to the internet can provide remote transcribing of patient examination notes. Audio and video can be captured and transmitted by wireless signals sent from the computer screen in the frame of the glasses. But using wireless glass-type devices can expose the user to a specific absorption rates (SAR) of 1.11-1.46 W/kg of radiofrequency radiation. That RF intensity is as high as or higher than RF emissions of some cell phones. Prolonged use of cell phones used ipsilaterally at the head has been associated with statistically significant increased risk of glioma and acoustic neuroma...
2018: Electromagnetic Biology and Medicine
https://www.readbyqxmd.com/read/29330600/the-impact-of-acoustic-neuroma-on-long-term-quality-of-life-outcomes-in-the-united-kingdom
#14
Wouter L Lodder, Bernard F A M van der Laan, Tristram H Lesser, Samuel C Leong
OBJECTIVE: To quantify the impact of acoustic neuroma on the quality-of-life (QOL) patients in the United Kingdom. STUDY DESIGN: Online questionnaire survey. PATIENTS: Members of the British Acoustic Neuroma Association received PANQOL questionnaires. RESULTS: Of the 880 BANA members contacted, 397 (45.1%) responded, although only 359 had complete datasets for analysis. Composite QOL scores were as follows: for microsurgery 58 (SD 35), for radiotherapy 56 (SD18), for combination of surgery and radiotherapy 49 (SD 14), and for the observation group 54 (SD 20)...
March 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29227438/transcanal-transpromontorial-acoustic-neuroma-surgery-results-and-facial-nerve-outcomes
#15
Daniele Marchioni, Davide Soloperto, Barbara Masotto, Cristoforo Fabbris, Stefano De Rossi, Domenico Villari, Livio Presutti
BACKGROUND: Recently, the transcanal approach for the removal of acoustic neuromas has been introduced. Facial nerve (FN) preservation is one of the main challenges of this kind of surgery. OBJECTIVE: To describe our experience in the surgical treatment of acoustic neuromas, focusing on the functional results of FN preservation after a transcanal approach. METHODS: A retrospective chart review was carried out on clinical data and videos from operations on 49 patients who underwent surgery with a totally transcanal exclusive endoscopic approach for Koos stage I-II lesions, or an enlarged transcanal transpromontorial approach for Koos stage II-III tumors, between March 2012 and February 2017...
February 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29192065/peripheral-nerve-function-estimation-by-linear-model-of-multi-cmap-responses-for-surgical-intervention-in-acoustic-neuroma-surgery
#16
Dilok Puanhvuan, Sorayouth Chumnanvej, Yodchanan Wongsawat
Nerve function assessments are crucial for surgical intervention during acoustic neuroma surgery. Cranial nerves such as acoustic and facial nerves, can be possibly damaged during tumor dissection. Proper surgical intervention should prevent neurological deficit and achieve total tumor removal. Conventionally, nerve function is qualitatively evaluated by surgeon and neurologist. Facial nerves can be preserved by monitoring the compound muscle action potential (CMAP) response. The differences in the amplitude and latency of CMAP are used as indicators during surgical interventions...
December 2017: Physiological Reports
https://www.readbyqxmd.com/read/29050101/-factors-of-hearing-preservation-in-acoustic-neuroma-surgery
#17
H Y Tan, Z Y Wang, H Wu
Over the past 50 years, the focus of acoustic neuroma surgery has shifted from low mortality and tumor resection to retention of neurological function. Hearing preservation is another point in addition to facial nerve function preservation. Hearing preservation rates overall ranged from 2% to 93% in recent studies. Characteristics such as approach, pre-operative neurological function, tumor size, nerve of origin and fundal fluid of the internal auditory canal have been reported as possible influencing factors...
October 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/29021412/postoperative-headache-after-undergoing-acoustic-neuroma-surgery-via-the-retrosigmoid-approach
#18
Noritaka Aihara, Hiroshi Yamada, Mariko Takahashi, Akira Inagaki, Shingo Murakami, Mitsuhito Mase
To estimate the duration of postoperative headache after surgery for acoustic neuroma and the effects of age, sex, tumor size, extent of tumor resection, type of skin incision, surgical duration, hearing preservation, and postoperative facial nerve palsy. This retrospective review analyzed clinical data from 97 patients who had undergone surgery for unilateral acoustic neuroma via the retrosigmoid approach >1 year previously. We investigated whether patients had headache at hospital discharge and during attendance at outpatient clinics...
December 15, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28761510/a-systematic-review-about-the-position-related-complications-of-acoustic-neuroma-surgery-via-suboccipital-retrosigmoid-approach-sitting-versus-lateral
#19
REVIEW
Mahdi Safdarian, Manouchehr Safdarian, Roger Chou, Seyed Mahmoud Ramak Hashemi, Vafa Rahimi-Movaghar
This systematic review wasdesigned to compare the complications of acoustic neuroma surgery via the suboccipital retrosigmoid approach in the sitting versus lateral positions. Searches for randomized trials and observational studies about the complications of acoustic neuroma surgery were performed in five medical databases (though October 2015) including PubMed, MEDLINE (In-Process and Other Non-Indexed Citations), EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL) and PsycINFO. Primary outcomes in this study were venous air emboli, neuropsychological defects, CSF leak, facial and abducens nerves palsy, postoperative deafness, hydrocephalus and mortality...
July 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28612038/resection-planning-for-robotic-acoustic-neuroma-surgery
#20
Kepra L McBrayer, George B Wanna, Benoit M Dawant, Ramya Balachandran, Robert F Labadie, Jack H Noble
Acoustic neuroma surgery is a procedure in which a benign mass is removed from the internal auditory canal (IAC). Currently, this surgical procedure requires manual drilling of the temporal bone followed by exposure and removal of the acoustic neuroma. This procedure is physically and mentally taxing to the surgeon. Our group is working on the development of an acoustic neuroma surgery robot (ANSR) to perform the initial drilling procedure. Planning the ANSR's drilling region using preoperative CT requires expertise and takes about 35 min...
April 2017: Journal of Medical Imaging
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