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https://www.readbyqxmd.com/read/29241178/role-of-biopsies-in-the-management-of-intracranial-gliomas
#1
Kunal S Patel, Bob S Carter, Clark C Chen
Gliomas encompass a wide spectrum of various histopathological entities with different management strategies and associated prognoses. In many cases, initial biopsy of the brain lesion is required, since definitive diagnosis forms the foundation for treatment decision-making. Tissue sampling can be attained during stereotactic, open, or endoscopic procedures and, overall, provides >90% diagnostic yield, while it may be significantly lower (60-70%) in small (<1 cm3) and/or heterogeneous lesions. In the majority of the modern series, the morbidity rates do not exceed 2...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29239086/treatment-of-pathologic-peri-implant-pockets
#2
REVIEW
Stefan Renvert, Ioannis Polyzois
Peri-implant and periodontal pockets share a number of anatomical features but also have distinct differences. These differences make peri-implant pockets more susceptible to trauma and infection than periodontal pockets. Inadequate maintenance can lead to infections (defined as peri-implant mucositis and peri-implantitis) within peri-implant pockets. These infections are recognized as inflammatory diseases, which ultimately lead to the loss of supporting bone. Diagnostic and treatment methods conventionally used in periodontics have been adopted to assess and treat these diseases...
February 2018: Periodontology 2000
https://www.readbyqxmd.com/read/29238637/spinal-instability-neoplastic-score-sins-reliability-among-spine-fellows-and-resident-physicians-in-orthopedic-surgery-and-neurosurgery
#3
Shandy Fox, Michael Spiess, Luke Hnenny, Daryl R Fourney
Study Design: Reliability analysis. Objectives: The Spinal Instability Neoplastic Score (SINS) was developed for assessing patients with spinal neoplasia. It identifies patients who may benefit from surgical consultation or intervention. It also acts as a prognostic tool for surgical decision making. Reliability of SINS has been established for spine surgeons, radiologists, and radiation oncologists, but not yet among spine surgery trainees. The purpose of our study is to determine the reliability of SINS among spine residents and fellows, and its role as an educational tool...
December 2017: Global Spine Journal
https://www.readbyqxmd.com/read/29229628/nationwide-multicenter-study-on-the-management-of-pulmonary-neuroendocrine-carcinoid-tumors
#4
Samira Mercedes Sadowski, Emanuel Christ, Benoit Bedat, Attila Kollar, Wolfram Karenovics, Aurel Perren, Frederic Triponez
Background/ Aim: To analyze the management and outcome of patients with primary typical (TC) and atypical lung carcinoids (AC) in Switzerland. METHODS: Retrospective analysis of patients selected from a neuroendocrine tumor (NET) registry. Patients were divided into TC and AC according to pathology reports, and surgical procedures were grouped as wedge/ segmentectomy, lobectomy/ bi-lobectomy and pneumectomy. Survival analysis was performed using the Kaplan-Meier method and log-rank test...
December 11, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/29226687/validation-of-a-new-scoring-scale-for-behavioral-assessment-of-l-dopa-induced-dyskinesia-in-the-rat-a-new-tool-for-early-decision-making-in-drug-development
#5
Simon Loiodice, Anne-Sophie Denibaud, Wendy Deffains, Magali Alix, Pierre Montagne, Marine Seffals, Christophe Drieu La Rochelle
The 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-treated non-human primate (NHP) has been described as the most translatable model for experimental reproduction of L-dopa-induced dyskinesia (LID). However, from a drug discovery perspective, the risk associated with investment in this type of model is high due to the time and cost. The 6-hydroxydopamine (6-OHDA) rat dyskinesia model is recommended for testing compounds but relies on onerous, and non-standard behavioral rating scales. We sought to develop a simplified and sensitive method aiming at assessing LID in the rat...
December 11, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29222509/impact-of-model-calibration-on-cost-effectiveness-analysis-of-cervical-cancer-prevention
#6
David Moriña, Silvia de Sanjosé, Mireia Diaz
Markov chain models are commonly used to simulate the natural history of human papillomavirus infection and subsequent cervical lesions with the aim of predicting future benefits of health interventions. Developing and calibrating these models entails making a number of critical decisions that will influence the ability of the model to reflect real conditions and predict future situations. Accuracy of selected inputs and calibration procedures are two of the crucial aspects for model performance and understanding their influence is essential, especially when involves policy decisions...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29218883/tree-based-methods-for-characterizing-tumor-density-heterogeneity
#7
Katherine Shoemaker, Brian P Hobbs, Karthik Bharath, Chaan S Ng, Veerabhadran Baladandayuthapani
Solid lesions emerge within diverse tissue environments making their characterization and diagnosis a challenge. With the advent of cancer radiomics, a variety of techniques have been developed to transform images into quantifiable feature sets producing summary statistics that describe the morphology and texture of solid masses. Relying on empirical distribution summaries as well as grey-level co-occurrence statistics, several approaches have been devised to characterize tissue density heterogeneity. This article proposes a novel decision-tree based approach which quantifies the tissue density heterogeneity of a given lesion through its resultant distribution of tree-structured dissimilarity metrics computed with least common ancestor trees under repeated pixel re-sampling...
2018: Pacific Symposium on Biocomputing
https://www.readbyqxmd.com/read/29216530/brain-angiometastasis-from-a-non-seminomatous-germ-cell-tumor-a-case-report
#8
Alejandro Monroy-Sosa, Gervith Reyes-Soto, Bernardo Cacho-Díaz, Martín Granados-García, Allan Hernández Estrada, Ana María Cano-Valdez, Ángel Herrera-Gómez
INTRODUCTION: Brain metastasis from non-seminomatous germ cell tumors (NSGCT) is rare. Herein, we describe the second reported case of brain metastasis from a NSGCT with high-flow arteriovenous (AV) shunts, and propose a novel surgical treatment plan. CLINICAL CASE: The patient was a 34-year-old male who presented with hemiparesis and hemianesthesia. Magnetic resonance angiography revealed three vascular lesions with afferent vessels and efferent vessels. Angiography displayed two high-flow AV shunts...
December 2, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29216478/reach-and-grasp-deficits-following-damage-to-the-dorsal-pulvinar
#9
Melanie Wilke, Lukas Schneider, Adan-Ulises Dominguez-Vargas, Carsten Schmidt-Samoa, Kristina Miloserdov, Ahmad Nazzal, Peter Dechent, Yuranny Cabral-Calderin, Hansjörg Scherberger, Igor Kagan, Mathias Bähr
Expansion of the dorsal pulvinar in humans and its anatomical connectivity suggests its involvement in higher-order cognitive and visuomotor functions. We investigated visuomotor performance in a 31 year old patient (M.B.) with a lesion centered on the medial portion of the dorsal pulvinar (left > right) due to an atypical Sarcoidosis manifestation. Unlike lesions with a vascular etiology, the lesion of M.B. did not include primary sensory or motor thalamic nuclei. Thus, this patient gave us the exceedingly rare opportunity to study the contribution of the dorsal pulvinar to visuomotor behavior in a human without confounding losses in primary sensory or motor domains...
November 8, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29198404/paleopathological-rigor-and-differential-diagnosis-case-studies-involving-terminology-description-and-diagnostic-frameworks-for-scurvy-in-skeletal-remains
#10
Haagen D Klaus
Diverse pathological processes can produce overlapping or even indistinguishable patterns of abnormal bone formation or destruction, representing a fundamental challenge in the understanding of ancient diseases. This paper discusses increasing rigor in differential diagnosis through the paleopathological study of scurvy. First, paleopathology's use of descriptive terminology can strive to more thoroughly incorporate international standards of anatomical terminology. Second, improved observation and description of abnormal skeletal features can help distinguish between anemia or vitamin C deficiency...
December 2017: International Journal of Paleopathology
https://www.readbyqxmd.com/read/29198275/emotions-are-rising-the-growing-field-of-affect-neuropsychology
#11
Skye McDonald
Thirty years ago, the neuropsychology of emotion started to emerge as a mainstream topic. Careful examination of individual patients showed that emotion, like memory, language, and so on, could be differentially affected by brain disorders, especially in the right hemisphere. Since then, there has been accelerating interest in uncovering the neural architecture of emotion, and the major steps in this process of discovery over the past 3 decades are detailed in this review. In the 1990s, magnetic resonance imaging (MRI) scans provided precise delineation of lesions in the amygdala, medial prefrontal cortex, insula and somatosensory cortex as underpinning emotion disorders...
October 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/29198096/prognostic-factors-and-decision-tree-for-long-term-survival-in-metastatic-uveal-melanoma
#12
Daniel Lorenzo, María Ochoa, Josep Maria Piulats, Cristina Gutiérrez, Luis Arias, Jaum Català, María Grau, Judith Peñafiel, Estefanía Cobos, Pere Garcia-Bru, Marcos Javier Rubio, Noel Padrón-Pérez, Bruno Dias, Joan Pera, Josep Maria Caminal
Purpose: The purpose of this study was to demonstrate the existence of a bimodal survival pattern in metastatic uveal melanoma. Secondary aims were to identify the characteristics and prognostic factors associated with long-term survival and to develop a clinical decision tree. Materials and Methods: The medical records of 99 metastatic uveal melanoma patients were retrospectively reviewed. Patients were classified as either short (≤ 12 months) or long-term survivors (> 12 months) based on a graphical interpretation of the survival curve after diagnosis of the first metastatic lesion...
December 4, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/29197712/radiotherapy-induced-reactivation-of-neurotrophic-human-herpes-viruses-overview-and-management
#13
REVIEW
Marigdalia K Ramirez-Fort, Jianying Zeng, Amir Feily, Luis A Ramirez-Pacheco, Joseph M Jenrette, David L Mayhew, Talal Syed, S Lewis Cooper, Craig Linden, Witney S Graybill, Lars E French, Christopher S Lange
PURPOSE: Infection by Human Herpes Viruses (HHV) types 1-3, are prevalent throughout the world. It is known that radiotherapy can reactivate HHVs, but it is unclear how and to what extent reactivations can interact with or affect radiotherapeutic efficacy, patient outcomes and mortality risk. Herein, we aim to summarize what is known about Herpes Simplex Virus (HSV)-1,2 and Varicella Zoster Virus (VZV) pathophysiology as it relates to tumor biology, radiotherapy, chemo-radiotherapy, diagnosis and management so as to optimize cancer treatment in the setting of active HHV infection...
November 22, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29192947/-executive-functions-in-frontal-lob-syndrome-a-case-report
#14
Özge Metin, Ali Evren Tufan, Nagihan Cevher Binici, Özge Saraçlı, Adnan Atalay, Ayşegül Yolga Tahiroğlu
Prefrontal cortex in frontal lobe (FL) is the center of executive functions (EF). FL damage can lead to executive dysfunction by influencing frontal-subcortical circuits (dorsolateral, orbitofrontal, ventromedial). Damage to the dorsolateral prefrontal cortex (DLPFC) can lead to deterioration in EF, whereas damage to the orbitofrontal cortex (OFC) can lead to personality changes with the characteristic of disinhibition and irritability. In addition, damage to the anterior cingulate cortex/medial prefrontal cortex (ACC/MPFC) can result in decreased spontaneity...
2017: Türk Psikiyatri Dergisi, Turkish Journal of Psychiatry
https://www.readbyqxmd.com/read/29192691/patient-understanding-of-commonly-used-oral-medicine-terminology
#15
E Hayes, R Dua, E Yeung, K Fan
Introduction Communication within the doctor-patient relationship is complex due to a variety of reasons; a patient's understanding may not correspond with the clinician's vocabulary, resulting in misunderstanding, anxiety and ill-informed decision making. We investigated the understanding of terminology commonly used in oral and maxillofacial surgery and oral medicine clinics.Methods We investigated patients' understanding using a questionnaire-based study in the out-patient setting. Age, gender, first language and highest educational level were recorded...
December 1, 2017: British Dental Journal
https://www.readbyqxmd.com/read/29192186/inverted-activity-patterns-in-ventromedial-prefrontal-cortex-during-value-guided-decision-making-in-a-less-is-more-task
#16
Georgios K Papageorgiou, Jerome Sallet, Marco K Wittmann, Bolton K H Chau, Urs Schüffelgen, Mark J Buckley, Matthew F S Rushworth
Ventromedial prefrontal cortex has been linked to choice evaluation and decision-making in humans but understanding the role it plays is complicated by the fact that little is known about the corresponding area of the macaque brain. We recorded activity in macaques using functional magnetic resonance imaging during two very different value-guided decision-making tasks. In both cases ventromedial prefrontal cortex activity reflected subjective choice values during decision-making just as in humans but the relationship between the blood oxygen level-dependent signal and both decision-making and choice value was inverted and opposite to the relationship seen in humans...
December 1, 2017: Nature Communications
https://www.readbyqxmd.com/read/29179355/use-of-vital-pulp-therapies-in-primary-teeth-with-deep-caries-lesions
#17
(no author information available yet)
PURPOSE: This manuscript presents evidence-based guidance on the use of vital pulp therapies for treatment of deep caries lesions in children. A guideline panel convened by the American Academy of Pediatric Dentistry formulated evidence-based recommendations on three vital pulp therapies: indirect pulp treatment (IPT; also known as indirect pulp cap), direct pulp cap (DPC), and pulpotomy. METHODS: The basis of the guideline's recommendations was evidence from "Primary Tooth Vital Pulp Therapy: A Systematic Review and Meta-Analysis...
September 15, 2017: Pediatric Dentistry
https://www.readbyqxmd.com/read/29179354/use-of-pit-and-fissure-sealants
#18
(no author information available yet)
BACKGROUND: This article presents evidence-based clinical recommendations for the use of pit-and-fissure sealants on the occlusal surfaces of primary and permanent molars in children and adolescents. A guideline panel convened by the American Dental Association (ADA) Council on Scientific Affairs and the American Academy of Pediatric Dentistry conducted a systematic review and formulated recommendations to address clinical questions in relation to the efficacy, retention, and potential side effects of sealants to prevent dental caries; their efficacy compared with fluoride varnishes; and a head-to-head comparison of the different types of sealant material used to prevent caries on pits-and-fissures of occlusal surfaces...
September 15, 2017: Pediatric Dentistry
https://www.readbyqxmd.com/read/29177494/domain-general-subregions-of-the-medial-prefrontal-cortex-contribute-to-recovery-of-language-after-stroke
#19
Fatemeh Geranmayeh, Tsz Wing Chau, Richard J S Wise, Robert Leech, Adam Hampshire
We hypothesized that the recovery of speech production after left hemisphere stroke not only depends on the integrity of language-specialized brain systems, but also on 'domain-general' brain systems that have much broader functional roles. The presupplementary motor area/dorsal anterior cingulate forms part of the cingular-opercular network, which has a broad role in cognition and learning. Consequently, we have previously suggested that variability in the recovery of speech production after aphasic stroke may relate in part to differences in patients' abilities to engage this domain-general brain region...
July 1, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29176078/one-stage-surgery-for-synchronous-liver-metastasis-from-a-neuroendocrine-tumor-of-the-colon-a-case-report
#20
Nicola Tartaglia, Alessandra Di Lascia, Pasquale Cianci, Alberto Fersini, Francesca Sanguedolce, Roberta Iadarola, Sabino Capuzzolo, Vincenzo Neri, Antonio Ambrosi
INTRODUCTION: Neuroendocrine tumors (NETs) are a heterogeneous group of tumors. NET of colon represent less than 1% of colonic tumors. Synchronous liver metastases, present in 75-80%, are considered significant adverse prognostic indicators. Liver is the second commonest site for metastasis in patients with colorectal neuroendocrine tumors. Available treatment options include surgical resection, chemotherapy, biotherapy. Surgery is the gold standard for curative therapy and it is strictly related to the localization, the grade of tumor, and the stage of disease...
November 20, 2017: Annali Italiani di Chirurgia
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