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Microsurgery

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https://www.readbyqxmd.com/read/29142778/-foramen-magnum-meningiomas-a-report-of-12-cases-and-literature-review
#1
Álvaro Campero, Pablo Ajler, Guillermo Roman, Conrado Rivadeneira
Objectives: The primary aim of this study was to assess the results attained for 12 patients with an anterior or lateral foramen magnum meningioma, treated microsurgically. Methods: Between June 2005 and December 2016, 12 patients with foramen magnum meningiomas underwent microsurgical resection. Patients' age and gender, tumor localization (anterior or lateral), symptoms, approach, and postoperative results were analyzed. Results: Eight of the 12 patients were women...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29141288/-application-of-stroboscopy-and-narrow-band-imaging-endoscopy-in-the-diagnosis-of-vocal-cord-leukoplakia
#2
J Li, W Xu, L Y Cheng
Objective: To investigate the value of stroboscopy and narrow band imaging (NBI)endoscopy in the diagnosis of vocal cord leukoplakia. Methods: Two hundred and forty-six patients with vocal cord leukoplakia who underwent laryngeal microsurgery and diagnosed by histopathology were recruited between August 2014 and July 2016 in this retrospective study. The diagnostic accuracy of stroboscopy and narrow band imaging endoscopy in the diagnosis of vocal cord leukoplakia was compared. SPSS21.0 software was used to analyze the data...
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/29141073/forces-of-tool-tissue-interaction-to-assess-surgical-skill-level
#3
Taku Sugiyama, Sanju Lama, Liu Shi Gan, Yaser Maddahi, Kourosh Zareinia, Garnette R Sutherland
Importance: The application of optimal forces between surgical instruments and tissue is fundamental to surgical performance and learning. To date, this force has not been measured clinically during the performance of microsurgery. Objectives: To establish a normative catalog of force profiles during the performance of surgery, to compare force variables among surgeons with different skill levels, and to evaluate whether such a force-based metric determines or differentiates skill level...
November 15, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/29140965/long-term-hearing-preservation-after-resection-of-vestibular-schwannoma-a-systematic-review-and-meta-analysis
#4
Syed F Ahsan, Farhan Huq, Michael Seidman, Andrew Taylor
OBJECTIVE: The objective is to perform a systematic review and meta-analysis of the literature on the long-term results of hearing preservation after vestibular schwannoma resection. DATA SOURCES: Ovid/Medline, PubMed, Embase, and the Cochrane library from January 1980 to January 2015. STUDY SELECTION: Inclusion criteria: age ≥18 years, minimum 10 patients in the treatment group, hearing preserving microsurgery, no previous radiation treatment, serviceable hearing at immediate postop follow-up, hearing outcomes reported using Gardner Robinson or the American Academy of Otolaryngology-Head and Neck Surgeons hearing grading scales, and average follow-up of 5 years...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29137285/genetic-and-immune-features-of-resectable-malignant-brainstem-gliomas
#5
Yang Zhang, Changcun Pan, Junmei Wang, Jingli Cao, Yuhan Liu, Yajie Wang, Liwei Zhang
We surveyed common genetic mutations (IDH1, H3F3A, PPM1D, and TP53) and immune features (PD-L1 expression and CD8(+) T cell tumor infiltration) in a series of 62 malignant brainstem gliomas that were resected via microsurgery. IDH1 mutations were mutually exclusive with H3F3A mutations. IDH1 mutations appeared only in adults and occurred more frequently in tumors larger than 10cm(3) (8/29 vs 1/32, Fisher's exact test, p=0.010). H3F3A mutations occurred more frequently in children and adolescent patients (19/24 vs 18/38, chi-square test, p=0...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29134378/organ-preservation-in-rectal-cancer-after-chemoradiation-should-we-extend-the-observation-period-in-patients-with-a-clinical-near-complete-response
#6
Britt J P Hupkens, Monique Maas, Milou H Martens, Marit E van der Sande, Doenja M J Lambregts, Stéphanie O Breukink, Jarno Melenhorst, Janneke B Houwers, Christiaan Hoff, Meindert N Sosef, Jeroen W A Leijtens, Maaike Berbee, Regina G H Beets-Tan, Geerard L Beets
BACKGROUND: To assess whether extending the observation period in patients with a near clinical complete response (near cCR) after chemoradiation (CRT) leads to an impaired oncological outcome. METHODS: Patients who had a clinical complete response (cCR) 8-10 weeks after CRT restaging with magnetic resonance imaging and endoscopy were offered a watch-and-wait strategy (W&W1), while patients with a near cCR were offered to undergo local excision or a second restaging 6-12 weeks later...
November 13, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29132382/early-motor-function-after-local-treatment-of-brain-metastases-in-the-motor-cortex-region-with-stereotactic-radiotherapy-radiosurgery-or-microsurgical-resection-a-retrospective-study-of-two-consecutive-cohorts
#7
Bogdan Pintea, Brigitta Baumert, Thomas Mehari Kinfe, Konstantinos Gousias, Yaroslav Parpaley, Jan Patrick Boström
BACKGROUND: We compared the functional outcome and influential factors of two standard treatment modalities for central cerebral metastases: electrophysiological-controlled microsurgical resection (MSR) and stereotactic radiotherapy/stereotactic radiosurgery (SRT/SRS). METHODS: We performed a database search for central metastasis treatments during the period from January 2008 to September 2012 in two clinical registers: 1) register for intraoperative neuromonitoring (Department of Neurosurgery), and 2) prospective database for SRT/SRS (Department of Radiotherapy)...
November 13, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/29125412/stereotactic-radiosurgery-for-jugular-foramen-schwannomas-an-international-multicenter-study
#8
Hideyuki Kano, Antonio Meola, Huai-Che Yang, Wan-Yuo Guo, Roberto Martínez-Alvarez, Nuria Martínez-Moreno, Dusan Urgosik, Roman Liscak, Or Cohen-Inbar, Jason Sheehan, John Y K Lee, Mahmoud Abbassy, Gene H Barnett, David Mathieu, Douglas Kondziolka, L Dade Lunsford
OBJECTIVE For some jugular foramen schwannomas (JFSs), complete resection is possible but may be associated with significant morbidity. Stereotactic radiosurgery (SRS) is a minimally invasive alternative or adjunct to microsurgery for JFSs. The authors reviewed clinical and imaging outcomes of SRS for patients with these tumors. METHODS Nine participating centers of the International Gamma Knife Research Foundation identified 92 patients who underwent SRS between 1990 and 2013. Forty-one patients had prior subtotal microsurgical resection...
November 10, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29124069/sodium-fluorescein-guided-resection-under-the-yellow-560%C3%A2-nm-surgical-microscope-filter-in-malignant-gliomas-our-first-38-cases-experience
#9
Ningning Zhang, Hailong Tian, Dezhang Huang, Xianbing Meng, Wenqiang Guo, Chaochao Wang, Xin Yin, Hongying Zhang, Bin Jiang, Zheng He, Zhigang Wang
Objective: Sodium fluorescein (FL) had been safely used in fluorescence-guided microsurgery for imaging various brain tumors. Under the YELLOW 560 nm surgical microscope filter, low-dose FL as a fluorescent dye helps in visualization. Our study investigated the safety and efficacy of this innovative technique in malignant glioma (MG) patients. Patients and Method: 38 patients suffering from MGs confirmed by pathology underwent FL-guided resection under YELLOW 560 nm surgical microscope filter...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29119321/conservative-treatment-for-advanced-t3-t4-laryngeal-cancer-meta-analysis-of-key-oncological-outcomes
#10
REVIEW
Giuditta Mannelli, Maria Silvia Lazio, Paolo Luparello, Oreste Gallo
GOAL: Controversies exist regarding the treatment of advanced laryngeal carcinomas. The purpose of this systematic review was to evaluate the oncologic outcomes of both transoral laser and open partial laryngectomies for advanced (T3-T4) squamous cell laryngeal cancers management. INTRODUCTION: A systematic review of literature was led searching for articles mentioning the following terms: advanced (T3-T4) laryngeal cancer AND laser; AND open partial laryngectomy; AND transoral laser microsurgery; AND cordectomy; AND conservative surgery; AND tracheohyoidopexy or tracheohyoidoepiglottopexy; AND supratracheal partial laryngectomy; AND supracricoid partial laryngectomy; AND cricohyoidopexy or cricohyoidoepiglottopexy...
November 8, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29116044/the-predictive-value-of-videostroboscopy-in-the-assessment-of-premalignant-lesions-and-early-glottis-cancers
#11
Anna Rzepakowska, Ewelina Sielska-Badurek, Ewa Osuch-Wójcikiewicz, Maria Sobol, Kazimierz Niemczyk
OBJECTIVE: To assess the sensitivity and specificity of larngovideostroboscopy (LVS) in the diagnosis of precancerous and malignant lesions of the vocal folds. MATERIAL AND METHODS: In 175 patients (128 men and 47 women), aged 19-88 years, mean age 61.5, who were admitted to the clinic with diagnosed premalignant conditions of vocal fold mucosa (leukoplakia, chronic hypertrophic inflammatory lesions) and thickening or tumor on the vocal fold, there was performed LVS before the laryngeal microsurgery...
August 31, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/29115657/wrapping-degloved-fingers-with-a-distal-based-radial-forearm-perforator-flap-a-repair-method-for-multiple-digital-degloving-injury
#12
Yusuf Kenan Çoban, Özcan Öcük, Kaan Bekircan
Degloving hand injuries present challenging situations to hand surgeons as they present with difficulties in reconstructive microsurgery, particularly in multiple digital injuries. Time is a limiting factor when multiple degloving finger amputations are present. Thus, we proposed a repair method for multiple degloving finger injuries that involves coverage with a distal-based reverse forearm flap of all injured fingers in a two-stage procedure. Early vigorous physical therapy after pedicle division of the flap at postoperative third week eliminates joint stiffness problems at wrist and metacarpophalangeal joints...
November 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29114276/predictive-value-of-motor-evoked-potential-monitoring-during-surgery-of-unruptured-anterior-circulation-cerebral-aneurysms
#13
Yasuhiro Yamada, Yoko Kato, Mohsen Nouri, Tsukasa Ganaha, Motoki Oheda, Kohei Ishihara, Shigeta Moriya, Akiyo Sadato, Joji Inamasu, Yuichi Hirose
Objective and Background: Surgery of unruptured aneurysms is always a great challenge to neurovascular surgeons because no postoperative neurological deficits should be expected postoperatively as the patients are fully asymptomatic before the surgery. Here, we present our experience with selective motor evoked potential (MEP) monitoring of our patients in a 2-year time window. Patients and Methods: From 2012 to 2014, 27 patients with unruptured intracranial aneurysms were operated in our institute with the help of MEP monitoring...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29113859/treatment-decision-for-occipital-arteriovenous-malformations-avms-to-achieve-hemorrhagic-control-while-maximizing-visual-preservation-our-experience-and-review-of-literature
#14
REVIEW
Wuyang Yang, Jose L Porras, Eunice Philadelphia, Jody Law, Tomas Garzon-Muvdi, Justin M Caplan, Geoffrey P Colby, Alexander L Coon, Rafael J Tamargo, Judy Huang
Despite concern of hemorrhagic risk, patients with occipital AVMs are at significant risk for visual disturbances after treatment. We aim to characterize the hemorrhage risk and visual disturbance in occipital AVMs patients from our experience and literature review. We performed retrospective review of occipital AVM patients seen at our institution from 1990 to 2015. Patient characteristics were compared using multivariable logistic regression with follow-up visual disturbance as the outcome. We also systematically reviewed the PubMed database for English literature describing occipital AVMs (with exclusion of case reports)...
November 4, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29111832/the-use-of-antibiotics-before-transanal-endoscopic-microsurgery
#15
Andrea Balla
No abstract text is available yet for this article.
November 7, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/29109639/evaluation-of-the-efficacy-of-desflurane-with-or-without-labetalol-for-hypotensive-anesthesia-in-middle-ear-microsurgery
#16
Neha Gupta, Vandana Talwar, Smita Prakash, Achyut Deuri, Anoop Raj Gogia
Background and Aims: Hypotensive anesthesia technique is used to reduce intraoperative bleeding and to improve the visibility of the operative field. The aim was to evaluate the efficacy of desflurane with and without labetalol for producing hypotensive anesthesia. Material and Methods: Sixty adult patients undergoing elective middle ear surgery were administered general anesthesia and randomly divided into two groups - Group D and Group L. The target mean arterial pressure (MAP) was 55-65 mmHg during hypotensive period...
July 2017: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/29106370/cytokinesis-in-vertebrate-cells-initiates-by-contraction-of-an-equatorial-actomyosin-network-composed-of-randomly-oriented-filaments
#17
Felix Spira, Sara Cuylen-Haering, Shalin Mehta, Matthias Samwer, Anne Reversat, Amitabh Verma, Rudolf Oldenbourg, Michael Sixt, Daniel W Gerlich
The actomyosin ring generates force to ingress the cytokinetic cleavage furrow in animal cells, yet its filament organization and the mechanism of contractility is not well understood. We quantified actin filament order in human cells using fluorescence polarization microscopy and found that cleavage furrow ingression initiates by contraction of an equatorial actin network with randomly oriented filaments. The network subsequently gradually reoriented actin filaments along the cell equator. This strictly depended on myosin II activity, suggesting local network reorganization by mechanical forces...
November 6, 2017: ELife
https://www.readbyqxmd.com/read/29102605/development-and-clinical-accuracy-of-a-new-iol-power-formula-vrf-compared-to-other-formulas
#18
Oleksiy V Voytsekhivskyy
PURPOSE: To develop and compare the accuracy and reproducibility of the VRF IOL power calculation formula with well-known methods. SETTING: Kiev Clinical Ophthalmology Hospital Eye Microsurgery Center, Kiev, Ukraine. DESIGN: Development and validation study. METHODS: This analysis comprised 823 eyes of 823 patients operated on by one surgeon with three hydrophobic different types of lenses (IQ SN60WF (494 eyes), ReSTOR SN6AD1 (169 eyes), Alcon Labs, Fort Worth, TX, USA and AMO Tecnis MF ZMB00 (160 eyes), J&J, Santa-Ana, CA, USA)...
November 1, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29098442/comparison-of-the-effect-of-endodontic-periodontal-combined-lesion-on-the-outcome-of-endodontic-microsurgery-with-that-of-isolated-endodontic-lesion-survival-analysis-using-propensity-score-analysis
#19
Minju Song, Minji Kang, Dae Ryong Kang, Hoi In Jung, Euiseong Kim
OBJECTIVES: The purpose of this retrospective clinical study was to evaluate the effect of lesion types related to endodontic microsurgery on the clinical outcome. MATERIALS AND METHODS: Patients who underwent endodontic microsurgery between March 2001 and March 2014 with a postoperative follow-up period of at least 1 year were included in the study. Survival analyses were conducted to compare the clinical outcomes between isolated endodontic lesion group (endo group) and endodontic-periodontal combined lesion group (endo-perio group) and to evaluate other clinical variables...
November 2, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29098372/radiological-tumor-thickness-as-a-risk-factor-for-local-recurrence-in-early-glottic-cancer-treated-with-laser-cordectomy
#20
Ho-Jin Son, Yoon Se Lee, Ja Yoon Ku, Jong-Lyel Roh, Seung-Ho Choi, Soon Yuhl Nam, Sang Yoon Kim
OBJECTIVES: Despite the excellent prognosis of early glottic cancer (T1-T2), the significance of preoperatively measured tumor thickness has not been elucidated. We evaluated the role of tumor thickness measured using computed tomography (CT) as a predictive factor for recurrence of early glottic cancer after transoral laser microsurgery (TLM). METHODS: The medical records of 134 patients who were diagnosed with early glottic squamous cell carcinoma and underwent TLM were reviewed...
November 2, 2017: European Archives of Oto-rhino-laryngology
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