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https://www.readbyqxmd.com/read/28331452/balloon-occlusion-technique-for-managing-portal-vein-hemorrhage-in-liver-transplantation
#1
John B Seal, Humberto Bohorquez, Naren Battula, Lucia DeGregorio, Emily Bugeaud, David S Bruce, Ian C Carmody, Ari J Cohen, George E Loss
BACKGROUND: Portal vein thrombosis (PVT) is relatively common among candidates for liver transplantation and can present significant intraoperative challenges. Depending on the extent of PVT, thromboendovenectomy (TEV), portal bypass, or systemic inflow may be required to restore portal inflow. While TEV is the most commonly used approach to restore anatomic portal inflow, portal vein injury and life-threatening hemorrhage are risks with this technique. CASE REPORT: We present a salvage technique for managing portal vein injury during TEV using intraluminal balloon occlusion of the portal vein during portal vein repair and reconstruction...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28329124/sleep-and-alertness-in-medical-interns-and-residents-an-observational-study-on-the-role-of-extended-shifts
#2
Mathias Basner, David F Dinges, Judy A Shea, Dylan S Small, Jingsan Zhu, Laurie Norton, Adrian J Ecker, Cristina Novak, Lisa M Bellini, Kevin G Volpp
Study Objectives: Fatigue from sleep loss is a risk to physician and patient safety, but objective data on physician sleep and alertness on different duty hour schedules is scarce. This study objectively quantified differences in sleep duration and alertness between medical interns working extended overnight shifts and residents not or rarely working extended overnight shifts. Methods: Sleep-wake activity of 137 interns and 87 PGY-2/3 residents on 2-week Internal Medicine and Oncology rotations was assessed with wrist-actigraphy...
February 24, 2017: Sleep
https://www.readbyqxmd.com/read/28328113/functional-equivalence-of-sleep-loss-and-time-on-task-effects-in-sustained-attention
#3
Bella Z Veksler, Glenn Gunzelmann
Research on sleep loss and vigilance both focus on declines in cognitive performance, but theoretical accounts have developed largely in parallel in these two areas. In addition, computational instantiations of theoretical accounts are rare. The current work uses computational modeling to explore whether the same mechanisms can account for the effects of both sleep loss and time on task on performance. A classic task used in the sleep deprivation literature, the Psychomotor Vigilance Test (PVT), was extended from the typical 10-min duration to 35 min, to make the task similar in duration to traditional vigilance tasks...
March 22, 2017: Cognitive Science
https://www.readbyqxmd.com/read/28318305/on-demand-driver-vigilance-enhancement-without-explicit-drowsiness-detection-further-analysis-of-the-pilot-study-results
#4
R Michael Van Auken, Brad K Hagoski, Dean P Chiang, Shane Chang
OBJECTIVE: A new active safety concept that engages the driver's psychosensory pain-processing mechanism to automatically trigger vigilance enhancement on-demand was proposed in Chang ( 2012 ). This concept is based on the hypothesis that a human's pain threshold will decline as he/she becomes drowsy, consequently triggering the vigilance enhancer. The objective of this pilot study was to develop methods to test this hypothesis, the results of which could lead to further refinement of the hypothesis and methods, with the ultimate goal of developing new active safety concepts that exploit the driver's endogenous psychosensory pain-processing mechanisms...
March 20, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28290178/multiple-valvular-complications-of-hypereosinophilic-syndrome
#5
Zoltán Pozsonyi, Szabolcs Benedek, Pál Sármán, Lívia Jánoskuti, Tivadar Hüttl, Astrid Apor
Endomyocardial fibrosis (EMF) is the most common cardiac abnormality in hyeperosinophilic syndrome (HES), sometimes complicated with mitral valve disease. Mitral valve disease without ventricular manifestation is very rare, however. Case reports link HES to prosthetic valve thrombosis (PVT), but the optimal type of prosthetic valve in HES is not known. Herein is reported the case of a young female HES patient with secondary mitral valve degeneration and severe regurgitation. A mechanical prosthetic valve was implanted six months after she was diagnosed with HES, but despite anticoagulation and antiplatelet therapy she developed PVT three months later...
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28283739/persistent-tachycardia-within-isolated-pulmonary-veins-during-atrial-fibrillation-ablation
#6
Kenichiro Yamagata, Atsushi Doi, Hiro Kawata, Hisaki Makimoto, Teruki Yokoyama, Yuko Inoue, Hideo Okamura, Takashi Noda, Wataru Shimizu, Naohiko Aihara, Takayuki Maki, Shiro Kamakura, Kengo Kusano, Kazuhiro Satomi
During circumferential pulmonary vein (PV) isolation for ongoing atrial fibrillation (AF), distinguishing passive conduction to the pulmonary vein (PV) from rapid PV arrhythmia in the isolated PV is difficult. Hence, the purpose of this study is to investigate both the feasibility of distinguishing the PV tachycardia after circumferential PV isolation and the electrophysiological characteristics of these tachycardia. Among 178 consecutive patients who underwent circumferential PV isolation during ongoing AF, fibrillatory PV converted to a regular cycle length PV tachycardia independent of the atrial rhythm (=independent PV tachycardia) in 13 PVs among 12 (7%) patients...
March 10, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28277098/barriers-and-motivations-to-volunteers-participation-in-preventive-vaccine-trials-a-systematic-review
#7
M Detoc, A Gagneux-Brunon, F Lucht, E Botelho-Nevers
The recruitment of volunteers in preventive vaccine trials (PVT) is a challenge, since vaccine hesitancy and debates on vaccines are combined to usual difficulties of enrollment in clinical trials. Areas covered: Current knowledge of the reasons leading to the volunteers' participation or non-participation in PVT mainly focuses on data from preventive HIV vaccine trials. A systematic PubMed search was conducted using PRISMA guidelines to identify articles or reviews that reported barriers and motivations to participation in PVT regardless of the targeted disease or population...
March 1, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28276304/development-of-a-new-purified-vero-cell-rabies-vaccine-rabivax-s-at-the-serum-institute-of-india-pvt-ltd
#8
Prasad S Kulkarni, Ashish Sahai, Bhagwat Gunale, Rajeev M Dhere
Rabies is a 100% fatal disease with significant disease burden in Asia and Africa but preventable with vaccines and immunoglobulins. There are very few WHO prequalified cell culture derived rabies vaccines available globally for use in humans. We have developed a new purified vero cell rabies vaccine (Rabivax-S) to meet this demand. Areas covered: In this review, we have described the detailed manufacturing process of Rabivax-S and summary of preclinical and clinical development based on the data generated in-house...
April 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28268647/analysis-of-loss-of-alertness-due-to-cognitive-fatigue-using-motif-synchronization-of-eeg-records
#9
Anwesha Sengupta, Abhishek Tiwari, Aritra Chaudhuri, Aurobinda Routray
Continuous and repetitive performance of cognitive tasks is likely to cause a change in the alertness levels of an individual. The present paper investigates the changes in EEG as a marker of alertness during an experiment designed to induce cognitive fatigue in subjects by continuous and repetitive performance of standard neuropsychological tests. Electroencephalogram (EEG), speech data and high-speed ocular images are recorded during the task set comprising of an Auditory Response Test (ART) Psychomotor Vigilance Test (PVT), a Letter Counting (LC) task, and a variant of the Stroop Task...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28265529/pulmonary-vein-thrombosis-a-recent-systematic-review
#10
REVIEW
Gerard Chaaya, Priya Vishnubhotla
The pulmonary veins (PVs) are the most proximal source of arterial thromboembolism. Pulmonary vein thrombosis (PVT) is a rare but potentially lethal disease; its incidence is unclear, as most of the literature includes case reports. It most commonly occurs as a complica-tion of malignancy, post lung surgery, or atrial fibrillation and can be idiopathic in some cases. Most patients with PVT are commonly asymptomatic or have nonspecific symptoms such as cough, hemoptysis, and dyspnea from pulmonary edema or infarction...
January 23, 2017: Curēus
https://www.readbyqxmd.com/read/28254727/predicting-the-incidence-of-portosplenomesenteric-vein-thrombosis-in-patients-with-acute-pancreatitis-using-classification-and-regression-tree-algorithm
#11
Yang Fei, Kun Gao, Jian Hu, Jianfeng Tu, Wei-Qin Li, Wei Wang, Guang-Quan Zong
BACKGROUND AND OBJECTIVE: The accurate prediction of portosplenomesenteric vein thrombosis (PVT) in patients with acute pancreatitis(AP) is very important but may also be difficult because of our insufficient understanding of the characteristics of AP-induced PVT. The purpose of this study is to design a decision tree model that provides critical factors associated with PVT using an approach that makes use of classification and regression tree (CART) algorithm. METHODS: The analysis included 353 patients with AP who were admitted between January 2011 and December 2015...
February 12, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28246056/predicting-risk-for-portal-vein-thrombosis-in-acute-pancreatitis-patients-a-comparison-of-radical-basis-function-artificial-neural-network-and-logistic-regression-models
#12
Yang Fei, Jian Hu, Kun Gao, Jianfeng Tu, Wei-Qin Li, Wei Wang
OBJECTIVE: To construct a radical basis function (RBF) artificial neural networks (ANNs) model to predict the incidence of acute pancreatitis (AP)-induced portal vein thrombosis. METHODS: The analysis included 353 patients with AP who had admitted between January 2011 and December 2015. RBF ANNs model and logistic regression model were constructed based on eleven factors relevant to AP respectively. Statistical indexes were used to evaluate the value of the prediction in two models...
February 24, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28240812/reconstruction-of-anomalous-portal-venous-branching-in-right-lobe-living-donor-liver-transplantation-malatya-approach
#13
Sezai Yilmaz, Cuneyt Kayaalp, Burak Isik, Veysel Ersan, Emrah Otan, Sami Akbulut, Abuzer Dirican, Ramazan Kutlu, Aysegul Sagir Kahraman, Cengiz Ara, Mehmet Yilmaz, Bulent Unal, Cemalettin Aydin, Turgut Piskin, Dincer Ozgor, Mustafa Ates, Fatih Ozdemir, Volkan Ince, Cemalettin Koc, Adil Baskiran, Sait Murat Dogan, Bora Barut, Fatih Sumer, Serdar Karakas, Koray Kutluturk, Saim Yologlu, Harika Gozukara
BACKGROUND: Reconstruction of anomalous portal venous branching (APVB) during right lobe living donor liver transplantation (LDLT) can be challenging. OBJECTIVE: To describe our surgical technique, named the Malatya Approach, in case of APVP during right lobe LDLT. The technique includes the unification of the APVB and to obtain a funnel shaped common extension with a circumferential fence by a saphenous vein conduit. METHODS: Total 126 (10...
February 27, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28240515/portal-vein-thrombosis-in-unresectable-hcc-cases-a-single-center-study-of-prognostic-factors-and-management-in-140-patients
#14
Ahmed Hosni Abdelmaksoud, Safaa Mandooh, Mohamed Mahmoud Nabeel, Tamer Mahmoud Elbaz, Hend Ibrahim Shousha, Ashraf Monier, Inas Anwar Elattar, Ashraf Omar Abdelaziz
Objective: Hepatocellular carcinoma with portal vein thrombosis is considered a relative contraindication for transarterial chemoembolization (TACE). The aim of our study was to evaluate the prognostic factors and management in patients with hepatocellular carcinoma with portal vein thrombosis (PVT). Methods: Between February 2011 and February 2015, 140 patients presented to our specialized multidisciplinary HCC clinic. All were assessed by imaging at regular intervals for tumor response and the data compared with baseline laboratory and imaging characteristics obtained before treatment...
January 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28226827/analysis-of-loss-of-alertness-due-to-cognitive-fatigue-using-motif-synchronization-of-eeg-records
#15
Anwesha Sengupta, Abhishek Tiwari, Aritra Chaudhuri, Aurobinda Routray, Anwesha Sengupta, Abhishek Tiwari, Aritra Chaudhuri, Aurobinda Routray, Aurobinda Routray, Anwesha Sengupta, Aritra Chaudhuri, Abhishek Tiwari
Continuous and repetitive performance of cognitive tasks is likely to cause a change in the alertness levels of an individual. The present paper investigates the changes in EEG as a marker of alertness during an experiment designed to induce cognitive fatigue in subjects by continuous and repetitive performance of standard neuropsychological tests. Electroencephalogram (EEG), speech data and high-speed ocular images are recorded during the task set comprising of an Auditory Response Test (ART) Psychomotor Vigilance Test (PVT), a Letter Counting (LC) task, and a variant of the Stroop Task...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28217541/urban-and-rural-disparity-in-tobacco-use-and-knowledge-about-oral-cancer-among-adolescents-an-epidemiological-survey-on-12-and-15-year-school-going-students
#16
Rajesh Sabnis, Kamtaram Sahu, Deepak Thakur, Sanidhya Surana, Heena Mazhar, Soumy Pandey
AIMS AND OBJECTIVES: To assess and compare the tobacco use prevalence; to understand and compare attitudes and knowledge related to tobacco use and its health impact among urban and rural students; and to assess urban and rural disparity in the use of tobacco among 12 and 15-year-old adolescents in the urban and rural schools in Chhattisgarh, India. MATERIALS AND METHODS: A cross-sectional study was conducted among 12 and 15-year-old and urban and rural school going children in Durg District...
December 2016: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/28217521/association-of-dental-and-skeletal-fluorosis-with-calcium-intake-and-serum-vitamin-d-concentration-in-adolescents-from-a-region-endemic-for-fluorosis
#17
Prerna P Patel, Pinal A Patel, M Mughal Zulf, Bhrugu Yagnik, Neha Kajale, Rubina Mandlik, Vaman Khadilkar, Shashi A Chiplonkar, Supriya Phanse, Vivek Patwardhan, Priscilla Joshi, Ashish Patel, Anuradha V Khadilkar
CONTEXT: Fluorosis is controlled by the duration of fluoride exposure and calcium and Vitamin D nutrition status. AIM: To examine (a) prevalence of dental and skeletal fluorosis in adolescents from upper, middle, and lower socioeconomic strata (SES) and (b) association of fluorosis with calcium intake and Vitamin D status. SETTINGS AND DESIGN: A cross-sectional study conducted in 10-13.9 years apparently healthy adolescents (n = 90), from different SES of Patan (Gujarat, India)...
January 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28210779/locomotor-activity-and-discriminative-stimulus-effects-of-a-novel-series-of-synthetic-cathinone-analogs-in-mice-and-rats
#18
Michael B Gatch, Sean B Dolan, Michael J Forster
RATIONALE: Recent years have seen an increase in the recreational use of novel, synthetic psychoactive substances. There are little or no data on the abuse liability of many of the newer compounds. OBJECTIVES: The current study investigated the discriminative stimulus and locomotor effects of a series of synthetic analogs of cathinone: α-pyrrolidinopropiophenone (α-PPP), α-pyrrolidinohexiophenone (α-PHP), α-pyrrolidinopentiothiophenone (α-PVT), 3,4-methylenedioxybutiophenone (MDPBP), and ethylone...
April 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28196342/decreased-salivary-alpha-amylase-levels-are-associated-with-performance-deficits-during-sleep-loss
#19
Maja Pajcin, Siobhan Banks, Jason M White, Jill Dorrian, Gemma M Paech, Crystal Grant, Kayla Johnson, Katie Tooley, Justin Fidock, Gary H Kamimori, Chris B Della Vedova
During sleep deprivation, neurobehavioral functions requiring sustained levels of attention and alertness are significantly impaired. Discrepancies between subjective measures of sleepiness and objective performance during sustained operations have led to interest in physiological monitoring of operator performance. Alertness, vigilance, and arousal are modulated by the wake-promoting actions of the central noradrenergic system. Salivary alpha-amylase (sAA) has been proposed as a sensitive peripheral measure of noradrenergic activity, but limited research has investigated the relationship between sAA and performance...
February 1, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28193686/paraventricular-thalamus-balances-danger-and-reward
#20
Eun A Choi, Gavan P McNally
Foraging animals balance the need to seek food and energy against the accompanying dangers of injury and predation. To do so, they rely on learning systems encoding reward and danger. Whereas much is known about these separate learning systems, little is known about how they interact to shape and guide behavior. Here we show a key role for the rat paraventricular nucleus of the thalamus (PVT), a nucleus of the dorsal midline thalamus, in this interaction. First we show behavioral competition between reward and danger: the opportunity to seek food reward negatively modulates expression of species-typical defensive behavior...
February 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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