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Microsurgery

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https://www.readbyqxmd.com/read/29775768/canine-pet-dog-tumor-microsurgery-and-intratumoral-concentration-and-safety-of-metronomic-chlorambucil-for-spontaneous-glioma-a-phase-i-clinical-trial
#1
R Timothy Bentley, Stephanie A Thomovsky, Margaret A Miller, Deborah W Knapp, Aaron A Cohen-Gadol
INTRODUCTION: Metronomic (daily low-dose) chlorambucil requires further study before implementation in human glioma. OBJECTIVE: Investigate the distribution and safety of metronomic chlorambucil in naturally occurring canine glioma. METHODS: Eight client-owned (pet) dogs with newly diagnosed spontaneous glioma were prospectively enrolled. Chlorambucil was administered preoperatively at 4 mg/m2 q 24hr for ≥ 3 days, and continued postoperatively until death or dose-limiting adverse events...
May 15, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29775154/clinical-and-radiological-outcomes-of-proactive-gamma-knife-surgery-for-asymptomatic-meningiomas-compared-with-the-natural-course-without-intervention
#2
Kyung Hwan Kim, So Jeong Kang, Jung-Won Choi, Doo-Sik Kong, Ho Jun Seol, Do-Hyun Nam, Jung-Il Lee
OBJECTIVE This study aimed to verify the effect of proactive Gamma Knife surgery (GKS) in the treatment of asymptomatic meningioma compared with the natural course without any therapeutic intervention. METHODS From January 2006 to May 2017, 354 patients newly diagnosed with asymptomatic meningioma were reviewed and categorized into GKS (n = 153) and observation (n = 201) groups. Clinical and radiological progression rates were examined, and changes in volume were analyzed. RESULTS Clinical progression (i.e...
May 18, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29773473/-base-of-the-skull-meningioma-efficacy-clinical-tolerance-and-radiological-evaluation-after-radiotherapy
#3
Y Brahimi, D Antoni, R Srour, F Proust, H Cebula, A Labani, G Noël
Skull base meningioma leads to functional disturbances, which can significantly alter the quality of life. The optimal management of these lesions, whose goals are neurological preservation and tumour local control, is not yet clearly established. It is widely recognized that the goal of a radical excision should be abandoned despite the advances in the field of microsurgery of skull base lesions. Although less morbid, partial tumour excision would be associated with increased risk of local tumour recurrence...
May 14, 2018: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29773411/evolution-of-an-evidence-based-supermicrosurgery-simulation-training-curriculum-a-systematic-review
#4
REVIEW
Georgios Pafitanis, Mitsunaga Narushima, Takumi Yamamoto, Maria Raveendran, Damjan Veljanoski, Ali M Ghanem, Simon Myers, Isao Koshima
BACKGROUND: Supermicrosurgery (SM) involves operating on vessels with calibers from 0.3-0.8 mm. SM requires skills beyond those of conventional microsurgery. Current microsurgery courses do not prepare a junior surgeon for such a challenge. Several models have been developed to assist in the early learning curve, but their true purpose, benefit, and validation have not been addressed. This systematic literature review summarizes the existing SM simulation models, and their likely impact on microsurgery training for small-caliber vessel-based procedures is assessed...
April 12, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29770572/intralesional-steroid-injection-as-an-alternative-treatment-for-57-patients-of-vocal-fold-mucus-retention-cysts
#5
Po-Hsuan Wu, Po-Wen Cheng, Feng-Chuan Lin, Chi-Te Wang
This study intends to validate the effectiveness of vocal fold steroid injection (VFSI) for mucus retention cysts (MRCs) by comparing the treatment outcome with a control group and investigate the risk factors for recurrence. This study recruited 57 patients with vocal fold MRCs treated with in-office VFSI between January 2014 and December 2016. Another 24 patients with MRCs receiving only conservative treatment during the same study period were included as the control group. Treatment outcomes comparison of the 22 age- and sex- matched patients between the VFSI and control groups demonstrated significantly better improvements among the patients receiving VFSI in maximal phonation, perceptual voice quality, and 10-item voice handicap index...
May 16, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29768631/distal-nerve-transfers-a-perspective-on-the-future-of-reconstructive-microsurgery
#6
David Chwei-Chin Chuang
BACKGROUND:  Nerve transfer can be broadly separated into two categories: proximal nerve graft and/or transfer and distal nerve transfer. The superiority of proximal nerve graft/transfer over distal nerve transfer strategy has been debated extensively, but which strategy is the best has not yet been defined. Each technique has its own advantages and disadvantages. However, proximal nerve graft/transfer is still the main reconstructive procedure based on the principle of "no diagnosis, then no treatment...
May 16, 2018: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/29765830/long-term-facial-nerve-outcomes-after-microsurgical-resection-of-vestibular-schwannomas-in-patients-with-preoperative-facial-nerve-palsy
#7
Michael A Mooney, Benjamin Hendricks, Christina E Sarris, Robert F Spetzler, Kaith K Almefty, Randall W Porter
Objectives  This study aimed at evaluating facial nerve outcomes in vestibular schwannoma patients presenting with preoperative facial nerve palsy. Design  A retrospective review. Setting  Single-institution cohort. Participants  Overall, 368 consecutive patients underwent vestibular schwannoma resection. Patients with prior microsurgery or radiosurgery were excluded. Main Outcome Measures  Incidence, House-Brackmann grade. Results  Of 368 patients, 9 had confirmed preoperative facial nerve dysfunction not caused by prior treatment, for an estimated incidence of 2...
June 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29765827/a-cross-sectional-survey-of-the-north-american-skull-base-society-current-practice-patterns-of-vestibular-schwannoma-evaluation-and-management-in-north-america
#8
Matthew L Carlson, Jamie J Van Gompel, R Mark Wiet, Nicole M Tombers, Anand K Devaiah, Devyani Lal, Jacques J Morcos, Michael J Link
Background  Very few studies have examined vestibular schwannoma (VS) management trends across centers and between providers. The objective of this study is to examine current practice trends, variance in treatment philosophies, and nuanced or controversial aspects of VS care across North America. Methods  This is a cross-sectional survey of North American Skull Base Society (NASBS) members who report regular involvement in VS care. Results  A total of 57 completed surveys were returned. Most respondents claimed to have over 20 years of experience and the majority reported working in an academic practice with an affiliated otolaryngology and/or neurosurgery residency program...
June 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29762746/microsurgery-versus-stereotactic-radiosurgery-for-brain-arteriovenous-malformations-a-matched-cohort-study
#9
Ching-Jen Chen, Dale Ding, Tony R Wang, Thomas J Buell, Adeel Ilyas, Natasha Ironside, Cheng-Chia Lee, M Yashar Kalani, Min S Park, Kenneth C Liu, Jason P Sheehan
BACKGROUND: Microsurgery (MS) and stereotactic radiosurgery (SRS) remain the preferred interventions for the curative treatment of brain arteriovenous malformations (AVM), but their relative efficacy remains incompletely defined. OBJECTIVE: To compare the outcomes of MS to SRS for AVMs through a retrospective, matched cohort study. METHODS: We evaluated institutional databases of AVM patients who underwent MS and SRS. MS-treated patients were matched, in a 1:1 ratio based on patient and AVM characteristics, to SRS-treated patients...
May 12, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29762448/pectoralis-major-musculocutaneous-flap-with-a-midline-sternal-skin-paddle-for-head-and-neck-reconstruction-a-new-design
#10
Jeongseok Oh, Hee Chang Ahn, Seungki Youn, Kyung Tae
PURPOSE: The pectoralis major musculocutaneous (PMMC) flap is a classic flap for head and neck reconstruction, relatively unpopular with the advancement of microsurgery and free flaps. The classic parasternal paddle design provided a thick flap with a small rotation arch leaving objectionable scarring. Our new symmetric midsternal design overcomes these problems. METHODS: Chart review was done from the years 2000 to 2017. Flap skin paddle was placed symmetrically on both sides of the midsternal line...
May 14, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29761077/anatomical-cadaver-study-of-endolaryngeal-vascularization-focus-on-the-glottis-supraglottis-and-subglottis-from-the-transoral-microsurgical-point-of-view
#11
Pietro Perotti, Marco Ferrari, Nausica Montalto, Davide Lancini, Alberto Paderno, Fabiola Incandela, Barbara Buffoli, Luigi Fabrizio Rodella, Cesare Piazza
Introduction: Carbon dioxide laser coagulation during transoral laser microsurgery (TLM) for laryngeal cancer allows control of bleeding from vessels smaller than 0.5 mm. Therefore, larger arteries and veins must be carefully managed by clipping and/or monopolar cautery. The aim of this paper is to detail endolaryngeal vascular anatomy and identify areas of possible bleeding during TLM. Methods: We performed an anatomical study on a series of 11 fresh-frozen human cadavers...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29759919/does-pepsin-play-a-role-in-etiology-of-laryngeal-nodules
#12
Hamdi Tasli, Burcu Eser, Mehmet Burak Asik, Hakan Birkent
OBJECTIVES: Vocal fold nodules (VFNs) are benign disorders affecting the superficial lamina propria of the true vocal folds. The etiology of VFNs still remains unclear but laryngeal trauma caused by vocal abuse, tobacco, alcohol, and laryngopharyngeal reflux (LPR) plays a crucial role on the pathogenesis. The aim of this study was to assess the presence of pepsin in formalin-fixed, paraffin-embedded (FEPE) specimens of VFNs to evaluate the role of LPR as a risk factor for VFNs. MATERIALS AND METHODS: A total of 28 pathology specimens of patients suffering from VFNs who had undergone laser microsurgery under general anesthesia were evaluated...
May 11, 2018: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29756243/narrow-band-imaging-for-risk-stratification-of-glottic-cancer-within-leukoplakia
#13
Anna Rzepakowska, Ewelina Sielska-Badurek, Michal Żurek, Ewa Osuch-Wójcikiewicz, Kazimierz Niemczyk
BACKGROUND: This study investigates relevance of narrow band imaging (NBI) in stratifying risk of malignant transformation within leukoplakia. METHODS: We conducted a prospective analysis that included 62 patients with 91 changes of leukoplakia on vocal folds. The NBI was obtained before microsurgery. Categorization of the lesion as benign was made when vessels of surrounding epithelium were classified as type I, II, or IV according to Ni classification. If there were visualized intraepithelial papillary capillary loops of type V, the lesion was classified as malignant...
May 13, 2018: Head & Neck
https://www.readbyqxmd.com/read/29751184/usefulness-of-ultrasound-guided-microsurgery-in-cavernous-angiomas-removal
#14
Lina Raffaella Barzaghi, Jody Filippo Capitanio, Lodoviga Giudice, Pietro Panni, Stefania Acerno, Pietro Mortini
OBJECT: Primary steps in the cavernous angiomas (CAs) surgery are a precise lesion identification and an optimal trajectory definition. Doing so, navigation techniques allow better results compared to microsurgery alone. In this paper we define the benefits of Intra-Operative Ultra-Sound (IOUS) use in addition to standard localization systems. METHODS: We retrospectively analyzed 59 CAs comparing two groups: 34 cases of frame-based and frameless navigation-assisted microsurgery (no-IOUS group) versus 25 cases of IOUS-guided microsurgery associated with these techniques (IOUS group)...
May 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29749910/a-novel-low-cost-reusable-high-fidelity-neurosurgical-training-simulator-for-cerebrovascular-bypass-surgery
#15
Ulas Cikla, Balkan Sahin, Sahin Hanalioglu, Azam S Ahmed, David Niemann, Mustafa K Baskaya
OBJECTIVE Cerebrovascular bypass surgery is a challenging yet important neurosurgical procedure that is performed to restore circulation in the treatment of carotid occlusive diseases, giant/complex aneurysms, and skull base tumors. It requires advanced microsurgical skills and dedicated training in microsurgical techniques. Most available training tools, however, either lack the realism of the actual bypass surgery (e.g., artificial vessel, chicken wing models) or require special facilities and regulations (e...
May 11, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29748451/assessment-of-short-term-functional-voice-therapy-in-patients-with-unilateral-paralysis-of-the-larynx
#16
Paulina Krasnodębska, Anna Domeracka-Kołodziej, Agata Szkiełkowska, Aleksandra Panasiewicz, Marzena Mularzuk, Dorota Sokołowska-Łazar, Karina Wilhelmsen
Introduction Laryngeal paralysis deteriorates all laryngeal functions. Therefore the therapeutic process must include restoration of respiratory, defensive and vocal function. Selection of a proper rehabilitation path plays a key role. Appropriate research protocol that includes objective methods of voice evaluation is an important element of monitoring the return of vocal efficiency. Voice efficiency is important for the patient particularly due to psychological and social reasons. Aim The aim of the study was the assessment of short-term functional voice therapy (FVT) in patients with unilateral paralysis of the larynx with the usage of objective parameters describing the glottis and voice quality...
April 30, 2018: Otolaryngologia Polska
https://www.readbyqxmd.com/read/29747636/a-novel-method-for-periapical-microsurgery-with-the-aid-of-3d-technology-a-case-report
#17
Shangzhu Ye, Shiyong Zhao, Weidong Wang, Qianzhou Jiang, Xuechao Yang
BACKGROUND: Three-dimensional (3D) technology has gained wide acceptance in dentistry. It has been used for treatment planning and surgical guidance. This case report presented a novel treatment approach to remove cortical bone and root-end during periapical surgery with the help of Cone-Beam Computed Tomography (CBCT), Computer Aided Design (CAD) and three-dimensional (3D) printing technology. CASE PRESENTATION: A 37-year-old female patient presented with a large periapical lesion of left maxillary lateral incisor and canine was referred for microsurgical endodontic surgery...
May 10, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/29740585/current-limitations-of-surgical-robotics-in-reconstructive-plastic-microsurgery
#18
Youri P A Tan, Philippe Liverneaux, Jason K F Wong
Surgical robots have the potential to provide surgeons with increased capabilities, such as removing physiologic tremor, scaling motion and increasing manual dexterity. Several surgical specialties have subsequently integrated robotic surgery into common clinical practice. Plastic and reconstructive microsurgical procedures have not yet  benefitted significantly from technical developments observed over the last two decades. Several studies have successfully demonstrated the feasibility of utilising surgical robots in plastic surgery procedures, yet limited work has been done to identify and analyse current barriers that have prevented wide-scale adaptation of surgical robots for microsurgery...
2018: Frontiers in Surgery
https://www.readbyqxmd.com/read/29738391/comparison-of-clinical-characteristics-and-surgical-outcomes-of-cystic-and-solid-vestibular-schwannomas
#19
Ji Hyuk Han, Kwang Ha Baek, Young Woo Lee, Young Kyun Hur, Hyun Ji Kim, In Seok Moon
OBJECTIVE: The aim of this study was to compare the clinical characteristics of cystic vestibular schwannomas (CVSs) and solid vestibular schwannomas (SVSs). STUDY DESIGN: Retrospective review. SETTING: Tertiary care center. PATIENTS: A total of 220 patients who underwent microsurgery for vestibular schwannomas between 2007 and 2016. INTERVENTION: CVSs were defined as cystic components ≥1/3 of total tumor volume based on automated volume measurement...
June 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29737733/-utility-of-preoperative-voice-therapy-on-the-voice-recovery-of-vocal-cord-polyps-patients-undergoing-the-microsurgery
#20
Ling Gao, Rui Qing Wang, Xu Ge Huang, Wei Feng Chen, Yan Chao Jiao, Yan Li Ma, Pei Yun Zhuang
OBJECTIVES: To evaluate the therapeutic effect on the voice recovery of patients with vocal cord polyps undergoing the microsurgery of preoperative voice therapy. METHODS: Twenty-six patients diagnosed with unilateral vocal cord polyp under stroboscope, who needed to undergo vocal cord loss resection under supportive laryngoscope, were randomly divided into control group (non-voice training) and treatment group (voice training), with each group of 13 patients. Patients in control group were just treated with surgical operation...
March 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
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