keyword
MENU ▼
Read by QxMD icon Read
search

Microsurgery

keyword
https://www.readbyqxmd.com/read/28719002/eyeslam-real-time-simultaneous-localization-and-mapping-of-retinal-vessels-during-intraocular-microsurgery
#1
Daniel Braun, Sungwook Yang, Joseph N Martel, Cameron N Riviere, Brian C Becker
BACKGROUND: Fast and accurate mapping and localization of the retinal vasculature is critical to increasing the effectiveness and clinical utility of robot-assisted intraocular microsurgery such as laser photocoagulation and retinal vessel cannulation. METHODS: The proposed EyeSLAM algorithm delivers 30 Hz real-time simultaneous localization and mapping of the human retina and vasculature during intraocular surgery, combining fast vessel detection with 2D scan-matching techniques to build and localize a probabilistic map of the vasculature...
July 18, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28710469/differential-nf2-gene-status-in-sporadic-vestibular-schwannomas-and-its-prognostic-impact-on-tumour-growth-patterns
#2
Hongsai Chen, Lu Xue, Hantao Wang, Zhaoyan Wang, Hao Wu
The great majority of sporadic vestibular schwannomas (VSs) are due to the inactivation of the NF2 gene. In this study, we found age-dependent differences in the clinical parameters of sporadic VSs. Young patients were characterized by progressive tumour behaviours, including earlier onset of initial symptoms, shorter symptom duration and larger tumour size. An increased rate of "two-hits" of both NF2 alleles, usually by mutation and allelic loss, was observed in young cases compared to older, and this correlated with the loss of protein and mRNA expression...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28708638/chordoid-glioma-a-neoplasm-found-in-the-anterior-part-of-the-third-ventricle
#3
Dianxu Yang, Zhiming Xu, Zhongrun Qian, Lili Wang, Quanmin Nie, Jianwei Ge, Yongming Qiu, Guisong Wang
Chordoid glioma is a rare low-grade tumor that originates almost exclusively in the anterior part of the third ventricle. The diagnosis and treatment of the tumor remain controversial. In this article, the authors present a novel case of chordoid glioma of the third ventricle. The patient was treated with less invasive microsurgery followed by low-dose gamma knife radiosurgery. Magnetic resonance imaging revealed a decrease in tumor size and necrosis in the central region of the tumor, without significant complications at follow-up 14 months later...
July 13, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28700464/cryptococcal-meningitis-after-transnasal-transsphenoidal-pituitary-microsurgery-of-acth-secreting-pituitary-adenoma-a-case-report
#4
Yang Liu, Ming Feng, Yong Yao, Kan Deng, Xinjie Bao, Xiaohai Liu, Renzhi Wang
RATIONALE: Microbial infection should be regarded in the differential diagnosis of neurosurgical complications after transnasal transsphenoidal pituitary microsurgery, albeit cryptococcal meningitis is rare. This article will discuss the risk factors of cryptococcal meningitis in patients underwent transnasal transsphenoidal pituitary microsurgery, and summary the potential origins of infection. PATIENT CONCERNS AND DIAGNOSIS: Here, we report a case of 37-year-old male who had cryptococcal meningitis after transnasal transsphenoidal pituitary microsurgery of a relapsing ACTH-secreting pituitary adenoma...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28700122/three-dimensional-visualization-system-for-ophthalmic-microscopes-using-visible-light-and-near-infrared-illumination
#5
Ki-Chul Kwon, Chan-Young Im, Kyoung Yul Seo, Sang-Min Nam, Munkh-Uchral Erdenebat, Young Bo Shim, Young Geun Han, Nam Kim
In this paper, we describe a three-dimensional visualization system for ophthalmic microscopes that is aimed at microsurgery without the eyepieces. A three-dimensional visualization system for ophthalmic microscopes using the mixed illumination which consists of visible light and near-infrared illumination, is established in order to acquire more exact information of object and reduce the amount of light irradiated to the patients, and its usage in microsurgery without eyepieces is herein described. A custom designed stereoscopic three-dimensional display which is manufactured for the convenience of the surgeons during the long-time surgery, is connected directly to the camera of the ophthalmic microscope in order to eliminate the discomfort of eyepieces to the surgeon and signal delay between the camera, mounted on the microscope, and display device for surgeon...
July 12, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28695998/co-surgeons-in-breast-reconstructive-microsurgery-what-do-they-bring-to-the-table
#6
Nicholas T Haddock, Samar Kayfan, Ronnie A Pezeshk, Sumeet S Teotia
INTRODUCTION: Current research within other surgical specialties suggests that a co-surgeon approach may reduce operative times and complications associated with complex bilateral procedures, possibly leading to improved patient and surgical outcomes. We sought to evaluate the role of the co-surgery team and its development in free flap breast reconstruction. METHODS: A retrospective review of free-flap breast reconstruction by two surgeons from 2011 to 2016 was conducted...
July 11, 2017: Microsurgery
https://www.readbyqxmd.com/read/28695624/life-quality-improvement-in-hoarse-patients-with-early-glottic-cancer-after-transoral-laser-microsurgery
#7
Li-Jen Hsin, Wan-Ni Lin, Tuan-Jen Fang, Li-Ang Lee, Chung-Jan Kang, Bing-Shan Huang, Chien-Yu Lin, Kang-Hsing Fan, Ngan-Ming Tsang, Cheng-Lung Hsu, Joseph Tung-Chieh Chang, Chun-Ta Liao, Tzu-Chen Yen, Kai-Ping Chang, Hsiu-Feng Chuang, Hsueh-Yu Li
BACKGROUND: The purpose of this study was to evaluate the recovery kinetics of voice and quality of life (QOL) over time in patients with early glottic cancer who underwent transoral laser microsurgery (TLM). METHODS: A prospective cohort study was conducted in which acoustic and aerodynamic voice assessments and QOL analyses were done using health-related questionnaires (European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30-questions [EORTC-QLQ-C30] and European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Head and Neck 35-questions [EORTC-QLQ-H&N35]) were administered at designated times...
July 11, 2017: Head & Neck
https://www.readbyqxmd.com/read/28689790/cell-therapy-and-scarred-vocal-folds
#8
A Mattei, J Magalon, B Bertrand, C Philandrianos, J Veran, A Giovanni
Vocal fold microstructure is complex and can be affected by laryngeal microsurgery, inducing scarring that prevents mechanical uncoupling of epithelium and muscle, leading to vibration disorder and disabling dysphonia. Treatment options presently are few, and often without efficacy for vibration, having only an impact on volume to reduce glottal closure defect. The present review of the literature had two aims: (i) to report the current state of the literature on cell therapy in vocal fold scarring; and (ii) to analyze the therapeutic interest of the adipose-derived stromal vascular fraction in the existing therapeutic armamentarium...
July 6, 2017: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/28683438/gamma-knife-radiosurgery-for-petroclival-meningioma-long-term-outcome-and-failure-pattern
#9
Jin Wook Kim, Dong Gyu Kim, Young-Bem Se, Sung Kwon Kim, Hyun-Tai Chung, Sun Ha Paek, Hee-Won Jung
Total removal of petroclival meningioma is difficult, and aggressive extirpation is often associated with significant surgical morbidity and mortality. The aim of this study was to evaluate the long-term outcome and failure pattern of treatment with Gamma Knife radiosurgery (GKRS) in patients with petroclival meningiomas. Eighty-nine consecutive patients with petroclival meningiomas underwent GKRS between 1998 and 2013. Fifty-eight patients received GKRS as a primary treatment and 31 patients underwent GKRS as a secondary treatment after microsurgery...
July 6, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/28676168/reconstruction-of-cheek-defects-secondary-to-mohs-microsurgery-or-wide-local-excision
#10
REVIEW
John E Hanks, Jeffrey S Moyer, Michael J Brenner
Successful reconstruction of the cheek following excision for cutaneous malignancy requires careful consideration of defect location, size, and depth in relation to the anatomic properties of the affected cheek unit. Various reconstructive options are available to the surgeon, ranging from simple excisions to complex cervicofacial advancements to meet the needs for functional and aesthetically pleasing reconstructive outcomes. The surgeon must prevent distortion of mobile structures, such as the eyelid, nose, and lips; respect aesthetic subunits; and avoid blunting natural creases...
August 2017: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/28674732/preservation-of-hearing-following-awake-surgery-via-the-retrosigmoid-approach-for-vestibular-schwannomas-in-eight-consecutive-patients
#11
Nobusada Shinoura, Akira Midorikawa, Kentaro Hiromitsu, Shoko Saito, Ryoji Yamada
BACKGROUND: Hearing preservation in patients with vestibular schwannomas remains difficult by microsurgery or radiosurgery. METHOD: In this study, awake surgery via the retrosigmoid approach was performed for vestibular schwannomas (volume, 11.6 ± 11.2 ml; range, 1.3-26.4 ml) in eight consecutive patients with preoperative quartering of pure tone audiometry (PTA) of 53 ± 27 dB. RESULTS: After surgery, hearing was preserved in seven patients and improved in one patient...
July 3, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28669879/unruptured-paraclinoid-aneurysm-treatment-effects-on-visual-function-a-systematic-review-and-meta-analysis
#12
Mina Asaid, Anthea H O'Neill, David Bervini, Ronil V Chandra, Leon T Lai
OBJECTIVE: Postoperative visual outcomes following repair of unruptured paraclinoid aneurysms (UPAs) are not well defined. We aim to investigate the influence of treatment modality on visual function. METHODS: A systematic literature analysis using the Ovid Medline and EMBASE databases was performed, encompassing English language studies (published between 1996 - 2016) reporting treatment outcomes for UPAs. Rates of visual morbidity (new, permanent postoperative deficit, worsening preoperative deficit), angiographic (recurrence, retreatment) and clinical outcomes (death, disability, post-treatment SAH) were recorded...
June 29, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28667480/mri-surveillance-for-the-detection-of-local-recurrence-in-rectal-cancer-after-transanal-endoscopic-microsurgery
#13
Britt J P Hupkens, Monique Maas, Milou H Martens, Willem M L L G Deserno, Jeroen W A Leijtens, Patty J Nelemans, Frans C H Bakers, Doenja M J Lambregts, Geerard L Beets, Regina G H Beets-Tan
OBJECTIVES: To evaluate diagnostic performance of follow-up MRI for detection of local recurrence of rectal cancer after transanal endoscopic microsurgery (TEM). METHODS: Between January 2006 and February 2014, 81 patients who underwent TEM were included. Two expert readers (R1 and R2), independently evaluated T2-weighted (T2W) MRI and diffusion-weighted (DWI) MRI for the detection of local recurrence, retrospectively, and recorded confidence on a five-point scale...
June 30, 2017: European Radiology
https://www.readbyqxmd.com/read/28666877/microbial-analysis-of-root-canal-and-periradicular-lesion-associated-to-teeth-with-endodontic-failure
#14
R S Pereira, V A A Rodrigues, W T Furtado, S Gueiros, G S Pereira, M J Avila-Campos
The quantification of ten microorganisms at the root ends and in the surrounding periradicular lesions was performed. Thirty 3 mm samples root ends and 30 samples of the surrounding chronic periapical infection were collected during apical microsurgery. Samples were triturated, and the bacterial DNA was obtained. The bacterial quantification was performed by using the SYBR Green system. At least one microorganism was detected in all patients. In both the root end and periapical samples, Fusobacterium nucleatum (71...
June 27, 2017: Anaerobe
https://www.readbyqxmd.com/read/28666099/tumor-selective-lipopolyplex-encapsulated-small-active-rna-hampers-colorectal-cancer-growth-in%C3%A2-vitro-and-in-orthotopic-murine
#15
Lu-Lu Wang, Chen-Lin Feng, Wen-Sheng Zheng, Shuai Huang, Wen-Xuan Zhang, Hong-Na Wu, Yun Zhan, Yan-Xing Han, Song Wu, Jian-Dong Jiang
Small active RNA (saRNA)-induced gene activation (RNAa) is a novel strategy to treat cancer. Our previous work proved that the p21-saRNA-322 successfully hindered colorectal cancer growth by activating p21 gene. However, the barrier for successful saRNA therapy is lack of efficient drug delivery. In the present study, a rectal delivery system entitled p21-saRNA-322 encapsulated tumor-selective lipopolyplex (TSLPP-p21-saRNA-322) which consist of PEI/p21-saRNA-322 polyplex core and hyaluronan (HA) modulated lipid shell was developed to treat colorectal cancer...
June 24, 2017: Biomaterials
https://www.readbyqxmd.com/read/28663853/review-of-intraoperative-optical-coherence-tomography-technology-and-applications-invited
#16
Oscar M Carrasco-Zevallos, Christian Viehland, Brenton Keller, Mark Draelos, Anthony N Kuo, Cynthia A Toth, Joseph A Izatt
During microsurgery, en face imaging of the surgical field through the operating microscope limits the surgeon's depth perception and visualization of instruments and sub-surface anatomy. Surgical procedures outside microsurgery, such as breast tumor resections, may also benefit from visualization of the sub-surface tissue structures. The widespread clinical adoption of optical coherence tomography (OCT) in ophthalmology and its growing prominence in other fields, such as cancer imaging, has motivated the development of intraoperative OCT for real-time tomographic visualization of surgical interventions...
March 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28660096/da-vinci-xi-robot-assisted-penetrating-keratoplasty
#17
Jimmy Chammas, Arnaud Sauer, Joëlle Pizzuto, Fabienne Pouthier, David Gaucher, Jacques Marescaux, Didier Mutter, Tristan Bourcier
PURPOSE: This study aims (1) to investigate the feasibility of robot-assisted penetrating keratoplasty (PK) using the new Da Vinci Xi Surgical System and (2) to report what we believe to be the first use of this system in experimental eye surgery. METHODS: Robot-assisted PK procedures were performed on human corneal transplants using the Da Vinci Xi Surgical System. After an 8-mm corneal trephination, four interrupted sutures and one 10.0 monofilament running suture were made...
June 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28659349/randomised-controlled-trial-of-transanal-endoscopic-microsurgery-versus-endoscopic-mucosal-resection-for-large-rectal-adenomas-trend-study
#18
Renée M Barendse, Gijsbert D Musters, Eelco J R de Graaf, Frank J C van den Broek, Esther C J Consten, Pascal G Doornebosch, James C Hardwick, Ignace H J T de Hingh, Chrisiaan Hoff, Jeroen M Jansen, A W Marc van Milligen de Wit, George P van der Schelling, Erik J Schoon, Matthijs P Schwartz, Bas L A M Weusten, Marcel G Dijkgraaf, Paul Fockens, Willem A Bemelman, Evelien Dekker
OBJECTIVE: Non-randomised studies suggest that endoscopic mucosal resection (EMR) is equally effective in removing large rectal adenomas as transanal endoscopic microsurgery (TEM), but EMR might be more cost-effective and safer. This trial compares the clinical outcome and cost-effectiveness of TEM and EMR for large rectal adenomas. DESIGN: Patients with rectal adenomas ≥3 cm, without malignant features, were randomised (1:1) to EMR or TEM, allowing endoscopic removal of residual adenoma at 3 months...
June 28, 2017: Gut
https://www.readbyqxmd.com/read/28657837/mckittrick-wheelock-syndrome-treated-by-transanal-minimally-invasive-surgery-a-single-center-experience-and-review-of-the-literature
#19
Anne Elisabeth Maria van der Pool, Eelco Jan Rade de Graaf, Maarten Vermaas, Renée Martine Barendse, Pascal Gabriël Doornebosch
INTRODUCTION: McKittrick Wheelock Syndrome (MKWS) is a rare syndrome characterized by secretory diarrhea, dehydration, prerenal acute kidney injury, and severe electrolyte abnormalities caused by a large hypersecretory villous adenoma located in the rectum or rectosigmoid junction. Transabdominal (laparoscopic) procedures are the most described procedures in the treatment of MKWS. We report an alternative surgical approach, transanal minimally invasive surgery (TAMIS), to solve this syndrome...
June 28, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28656075/value-of-macrobiopsies-and-transanal-endoscopic-microsurgery-in-the-histological-work-up-of-rectal-neoplasms-a-retrospective-study
#20
Guus M J Bökkerink, Gert-Jan van der Wilt, Dirk de Jong, Han H J M van Krieken, Robert P Bleichrodt, Johannes H W de Wilt, Andreas J A Bremers
AIM: To evaluate a step up approach: Taking macrobiopsies and performing excision biopsies in patients with suspected rectal cancer in which biopsies taken though the flexible endoscope showed benign histology. METHODS: Patients with a rectal neoplasm who underwent flexible endoscopy and biopsies were included. In case of benign biopsies rigid rectoscopy and macrobiopsies were employed. If this failed to prove malignancy, transanal endoscopic microsurgery (TEM) was used in a final effort to establish a certain preoperative diagnosis...
June 15, 2017: World Journal of Gastrointestinal Oncology
keyword
keyword
1626
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"