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https://www.readbyqxmd.com/read/29342440/the-critical-warning-sign-of-real-time-brainstem-auditory-evoked-potentials-during-microvascular-decompression-for-hemifacial-spasm
#1
Sang-Ku Park, Byung-Euk Joo, Seunghoon Lee, Jeong-A Lee, Jeong-Ho Hwang, Doo-Sik Kong, Dae-Won Seo, Kwan Park, Hoon-Taek Lee
OBJECTIVE: The aim of this study was to define the critical warning sign of real-time brainstem auditory evoked potential (BAEP) for predicting hearing loss (HL) after microvascular decompression (MVD) for hemifacial spasm (HFS). METHODS: Nine hundred and thirty-two patients with HFS who underwent MVD with intraoperative monitoring (IOM) of BAEP were analyzed. We used a 43.9 Hz/s stimulation rate and 400 averaging trials to obtain BAEP. To evaluate HL, pure-tone audiometry and speech discrimination scoring were performed before and one week after surgery...
January 4, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29340992/prospective-comparative-study-of-laparoscopic-narrow-band-imaging-nbi-versus-standard-imaging-in-gynecologic-oncology
#2
Alessia Aloisi, Yukio Sonoda, Ginger J Gardner, Kay J Park, Sarah L Elliott, Qin C Zhou, Alexia Iasonos, Nadeem R Abu-Rustum
BACKGROUND: Narrow band imaging (NBI) is an optic filtration enhancement for endoscopy that uses two wavelengths of light (415 and 540 nm) to highlight superficial microvascular patterns. It has been successfully utilized to improve identification of lesions with abnormal vasculature, which is associated with endometriosis and endometrial cancer. Case studies suggest it may also facilitate surgical staging of gynecologic cancer, which is critical in determining appropriate adjuvant therapies...
January 16, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29333924/dynamic-mr-imaging-for-functional-vascularization-depends-on-tissue-factor-signaling-in-glioblastoma
#3
Xiao Chen, Tian Xie, Jingqin Fang, Wei Xue, Houyi Kang, Haipeng Tong, Yu Guo, Bo Zhang, Sumei Wang, Yizeng Yang, Weiguo Zhang
Glomeruloid vascular proliferation (GVP) is a diagnostic hallmark and links to aggressive behavior, therapy resistance and poor prognosis in glioblastoma (GBM). It lacks clinical approaches to predict and monitor its formation and dynamic change. Yet the mechanism of GVPs also remains largely unknown. Using an in situ GBM xenograft mouse model, combined clinical MRI images of pre-surgery tumor and pathological investigation, we demonstrated that the inhibition of tissue factor (TF) decreased GVPs in Mouse GBM xenograft model...
January 15, 2018: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29328540/case-of-late-onset-relapsing-surgical-site-infection-related-to-a-venous-coupler-placed-during-free-flap-reconstruction-for-major-head-and-neck-cancer
#4
Yin Ren, Daniel G Deschler, Dipti Sajed, Marlene L Durand
BACKGROUND: Venous coupling devices are widely used during reconstructive surgery involving microvascular anastomosis but have not served as foreign bodies in head and neck surgical site infections. METHODS: We conducted a case report. RESULTS: A patient underwent resection and free flap reconstruction for recurrent tongue squamous cell carcinoma. She developed a neck abscess due to Streptococcus intermedius 7 weeks postoperatively, days after starting chemoradiotherapy...
January 12, 2018: Head & Neck
https://www.readbyqxmd.com/read/29311397/short-and-long-term-outcomes-between-young-and-older-hcc-patients-exceeding-the-milan-criteria-after-hepatectomy
#5
Junyi Shen, Chuan Li, Lvnan Yan, Bo Li, Mingqing Xu, Jiayin Yang, Wentao Wang, Tianfu Wen
AIM: The objective of this study was to evaluate short- and long-term survival after surgical treatment between young and older hepatocellular carcinoma (HCC) patients beyond the Milan criteria. MATERIAL AND METHODS: One hundred fifty-seven HCC patients (≤ 55 years old) were categorized into group A, and one hundred fifty-eight HCC patients (> 55 years old) were categorized into group B. Postoperative complications and overall survival were retrospectively analyzed...
December 27, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/29303857/reconstruction-of-a-compound-oromandibular-defect-by-means-of-chimeric-scapular-parascapular-free-flap-assisted-by-virtual-surgical-planning
#6
Josué Hernando, Antonio Aguilar-Salvatierra, Ignacio Osoitz Leizaola-Cardesa, Juan Antonio Rad, Amaya Vicuña, Rafael Gómez, Javier Martín, Gerardo Gómez-Moreno
BACKGROUND: Reconstruction of an oromandibular defect presents a considerable surgical challenge. But since the advent of microvascularized free flap reconstructive surgery, outcomes have improved significantly so that today almost any defect may be reconstructed. Recently, virtual surgical planning has reduced surgical time, the morbidity associated with surgery, and surgical precision. OBJECTIVE: This article reports a complex patient with a composite oromandibular defect...
January 4, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29301132/optical-measurements-during-deep-brain-stimulation-lead-implantation-safety-aspects
#7
Peter Zsigmond, Simone Hemm-Ode, Karin Wårdell
BACKGROUND: Intracerebral hemorrhage (ICH) is the most feared complication in deep brain stimulation (DBS) surgery. The aim of the study was to evaluate patient safety and outcome using laser Doppler flowmetry (LDF) as guidance tool during DBS implantations. METHODS: An LDF probe adapted for the stereotactic system was used as guide for creation of the trajectory. The microcirculation along 83 preplanned trajectories was measured with the guide during DBS surgery for movement disorders...
January 5, 2018: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/29299526/chicken-thigh-microvascular-training-model-improves-resident-surgical-skills
#8
Francis X Creighton, Allen L Feng, Neerav Goyal, Kevin Emerick, Daniel Deschler
Objectives: Microsurgical techniques are essential for vessel anastomosis in free flap reconstructive surgery. However, teaching these skills intraoperatively is difficult. The chicken thigh microvascular model is a high-fidelity model that has been previously validated to differentiate between skill levels of surgeons. This study aims to determine if this model objectively improves microsurgical skills. Study Design: Validation study. Methods: Thirteen residents were given a tutorial on microvascular anastomosis and asked to perform anastomoses on the microvascular model...
December 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/29288851/flat-posterior-cranial-fossa-affects-outcomes-of-microvascular-decompression-for-trigeminal-neuralgia
#9
Toshiki Fukuoka, Yusuke Nishimura, Masahito Hara, Kei Nomura, Hiroshi Ryu, Satoshi Yoshikawa, Toshihiko Wakabayashi
OBJECTIVE: The aim of this study was to investigate prognostic factors for microvascular decompression (MVD) in patients with primary trigeminal neuralgia (TN), with a particular focus on the morphology of the posterior cranial fossa (PCF). METHODS: The present study investigated 126 surgically treated primary TN patients with more than 1-year follow-up who underwent high-resolution magnetic resonance imaging between April 2003 and September 2015. We retrospectively reviewed clinical information and operative findings...
December 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29284902/elongated-miofascial-temporal-flap-in-comparison-with-standard-surgical-procedure-of-temporal-muscle-reconstruction
#10
Dino Dizdarevic, Tarik Masic, Edi Muslic
Introduction: Flap of the temporal muscle (m. temporalis) with its natural position, its mass and its length, compared with other bound and free microvascular flaps, is the method of choice for covering the middle part of the face after the removal of large tumor masses. Material: The study included a sample of 36 patients who were surgically treated due to malignant process at the middle face level with the performed partial, total or bilateral maxillectomy at the Clinic for Maxillofacial Surgery, University Clinical Center in Sarajevo...
October 2017: Medical Archives
https://www.readbyqxmd.com/read/29283939/rabdomyosarcoma-of-the-mandible-an-uncommon-clinical-presentation
#11
Cleverton Roberto de Andrade, Guilherme Dos Santos Trento, Fabiano Jeremias, Elisa Maria Aparecida Giro, Marisa Aparecida Cabrini Gabrielli, Mario Francisco Real Gabrielli, Oslei Paes de Almeida, Valfrido Antonio Pereira-Filho
Rhabdomyosarcoma (RMS) is the most common soft tissue sarcoma in children and adolescents. Most patients present with a mass in the head and neck region, urogenital region, or with distal extremity involvement. The authors describe a challenging case of a 6-year-old male patient presenting with mandibular RMS. The clinical/radiographic/tomographic evaluations classified the tumor as an advanced stage (stage IV), with a mass of 6.0 cm involving the left side of the mandible and parotid region. The biopsy revealed round, spindled, and pleomorphic cells with hyperchromatic nuclei and rare larger rhabdomyoblasts with eosinophilic cytoplasm...
December 27, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29275608/-application-of-the-supine-position-in-microsurgery-for-lesions-of-the-cerebellopontine-angle
#12
J Q Li, G Chen, X Li, Z Wang, D Zhou
Objective: To validate the usefulness of the supine position in microsurgery for lesions of the cerebellopontine angle (CPA) by the retrosigmoid approach. Methods: Thirty-nine patients with lesions (22 cases of tumor, 11 cases of trigeminal neuralgia and 6 cases of hemifacial spasm) of the CPA underwent tumor resection surgery or microvascular decompression surgery (MVDS). The patients were operated on in the supine position by retrosigmoid approach with the head turned 50 to 60 degrees away from the lesion and with slight forward flexion of the neck...
December 12, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29273229/hrct-morphological-characteristics-distinguishing-minimally-invasive-pulmonary-adenocarcinoma-from-invasive-pulmonary-adenocarcinoma-appearing-as-subsolid-nodules-with-a-diameter-of-%C3%A2-3%C3%A2-cm
#13
X Yue, S Liu, S Liu, G Yang, Z Li, B Wang, Q Zhou
AIM: To differentiate retrospectively the morphological characteristics at high-resolution computed tomography (CT) between minimally invasive pulmonary adenocarcinoma (MIA) and invasive pulmonary adenocarcinoma (IAC) appearing as subsolid nodules (SNs) with a diameter of ≤3 cm and to provide information to help operative decision-making. MATERIALS AND METHODS: The patient notes of 260 patients with SNs of ≤3 cm in diameter (98 with MIA and 162 with IAC) confirmed at surgery and histopathology from September 2008 to June 2012 were reviewed retrospectively at the Department of Radiology, Weifang Respiratory Disease Hospital...
December 19, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29258778/effects-of-deep-sedation-under-mechanical-ventilation-on-cognitive-outcome-in-patients-undergoing-surgery-for-oral-and-maxillofacial-cancer-and-microvascular-reconstruction
#14
Y Terada, S Inoue, M Konda, J Egawa, J Ueda, T Kirita, M Kawaguchi
OBJECTIVE: Cognitive impairment after intensive care unit (ICU) admission is becoming increasingly recognized. High-dose deep sedation has been suggested to play an important role in the development of cognitive impairment. However, the impact of heavy sedation as a single cause in the development of cognitive impairment in ICU patients remains unclear. In this study we investigated whether a three-day deep sedation protocol could reduce cognitive function in mechanically ventilated non-critical patients...
December 16, 2017: Medicina Intensiva
https://www.readbyqxmd.com/read/29244159/pre-clinical-model-of-severe-glutathione-peroxidase-3-deficiency-and-chronic-kidney-disease-results-in-coronary-artery-thrombosis-and-depressed-left-ventricular-function
#15
Paul Pang, Molly Abbott, Malyun Abdi, Quynh-Anh Fucci, Nikita Chauhan, Murti Mistri, Brandon Proctor, Matthew Chin, Bin Wang, Wenqing Yin, Tzong-Shi Lu, Arvin Halim, Kenneth Lim, Diane E Handy, Joseph Loscalzo, Andrew M Siedlecki
Background: Chronic kidney disease (CKD) patients have deficient levels of glutathione peroxidase-3 (GPx3). We hypothesized that GPx3 deficiency may lead to cardiovascular disease in the presence of chronic kidney disease due to an accumulation of reactive oxygen species and decreased microvascular perfusion of the myocardium. Methods: To isolate the exclusive effect of GPx3 deficiency in kidney disease-induced cardiac disease, we studied the GPx3 knockout mouse strain (GPx3-/-) in the setting of surgery-induced CKD...
December 13, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29243415/compact-dual-mode-diffuse-optical-system-for-blood-perfusion-monitoring-in-a-porcine-model-of-microvascular-tissue-flaps
#16
Seung Yup Lee, Julia M Pakela, Michael C Helton, Karthik Vishwanath, Yooree G Chung, Noah J Kolodziejski, Christopher J Stapels, Daniel R McAdams, Daniel E Fernandez, James F Christian, Jameson O'Reilly, Dana Farkas, Brent B Ward, Stephen E Feinberg, Mary-Ann Mycek
In reconstructive surgery, the ability to detect blood flow interruptions to grafted tissue represents a critical step in preventing postsurgical complications. We have developed and pilot tested a compact, fiber-based device that combines two complimentary modalities-diffuse correlation spectroscopy (DCS) and diffuse reflectance spectroscopy-to quantitatively monitor blood perfusion. We present a proof-of-concept study on an in vivo porcine model (n=8). With a controllable arterial blood flow supply, occlusion studies (n=4) were performed on surgically isolated free flaps while the device simultaneously monitored blood flow through the supplying artery as well as flap perfusion from three orientations: the distal side of the flap and two transdermal channels...
December 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29240052/-assessment-of-endothelial-dysfunction-for-prevention-of-complications-in-patients-with-lesions-of-peripheral-arteries
#17
A V Pokrovskiĭ, V A Kul'bak, T A Kremenchugskaia, E E Fedorov
BACKGROUND: Severity of endothelial dysfunction and impairments of the vasomotor function of arteries correlate with the degree of the development of atherosclerosis and the risk of cardiovascular complications. To date, poorly studied still remains the problem concerning alteration of the regulatory function of the endothelium in patients diagnosed with pronounced atherosclerotic lesions of peripheral arteries, as well as the impact of a surgical intervention on indices of endothelial dysfunction...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/29233698/ex-corpore-linguae-a-cohort-analysis-after-a-unique-surgical-technique-in-oral-cancer-resection
#18
Jan-Falco Wilbrand, Daniel Schmermund, Michael Knitschke, Philipp Streckbein, Christopher Kähling, Heiko Kerkmann, Heidrun Schaaf, Hans-Peter Howaldt, Sebastian Böttger
OBJECTIVE: Resection of posteriorly located oral squamous cell carcinomas (OSCCs) remains challenging for head and neck surgeons. However, several surgical techniques, such as lip and mandibular splitting, as well as submental "visor drop-down" of intraoral soft tissues, have been proposed for this purpose. Merrick et al. suggested that a pedicled genial drop-down surgical approach should be used to resect dorsally located OSCCs. Our study investigated patient outcomes following this surgical procedure, as no previous study has analyzed long-term follow-up data...
November 21, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29233190/microvascular-effects-of-intravenous-esmolol-in-patients-with-normal-cardiac-function-undergoing-postoperative-atrial-fibrillation-a-prospective-pilot-study-in-cardiothoracic-surgery
#19
William Fornier, Matthias Jacquet-Lagrèze, Thomas Collenot, Priscilla Teixeira, Philippe Portran, Rémi Schweizer, Michel Ovize, Jean-Luc Fellahi
BACKGROUND: Postoperative atrial fibrillation (POAF) is commonplace after cardiothoracic surgery. A rate control strategy using short-acting beta blockers is recommended as a first-line therapy in patients without hemodynamic instability. Microcirculatory effects of POAF and esmolol have not yet been investigated. We hypothesized that POAF without hemodynamic instability would induce microvascular dysfunction which could be reversed by intravenous esmolol. METHODS: Twenty-five cardiothoracic surgical patients with POAF were included in the study...
December 12, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29224810/utilization-of-a-pre-bent-plate-positioning-surgical-guide-system-in-precise-mandibular-reconstruction-with-a-free-fibula-flap
#20
Tingwei Bao, Jianfeng He, Changyang Yu, Wenquan Zhao, Yi Lin, Huiming Wang, Jianhua Liu, Huiyong Zhu
OBJECTIVES: We evaluated the effects of three-dimensional virtual planning and the use of a plate-embedded surgical guide in mandibular reconstruction with microvascular fibula flaps. MATERIALS AND METHODS: We retrospectively reviewed 35 patients who underwent primary mandibular reconstruction with a free fibula flap. They were divided into three groups according to the therapy they received. In group A, 12 patients underwent reconstruction using the modified surgical guide system, including virtual surgeries, pre-bent titanium plates, screw-predesignated cutting guides for mandibular and fibular osteotomies, and plate-embedded shaping guides...
December 2017: Oral Oncology
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