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https://www.readbyqxmd.com/read/27913961/prediction-of-postoperative-clinical-recovery-of-drop-foot-attributable-to-lumbar-degenerative-diseases-via-a-bayesian-network
#1
Shota Takenaka, Hiroyuki Aono
BACKGROUND: Drop foot resulting from degenerative lumbar diseases can impair activities of daily living. Therefore, predictors of recovery of this symptom have been investigated using univariate or/and multivariate analyses. However, the conclusions have been somewhat controversial. Bayesian network models, which are graphic and intuitive to the clinician, may facilitate understanding of the prognosis of drop foot resulting from degenerative lumbar diseases. QUESTIONS/PURPOSES: (1) To show a layered correlation among predictors of recovery from drop foot resulting from degenerative lumbar diseases; and (2) to develop support tools for clinical decisions to treat drop foot resulting from lumbar degenerative diseases...
December 2, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27913175/automated-cta-based-measurements-for-planning-support-of-minimally-invasive-aortic-valve-replacement-surgery
#2
Mustafa A Elattar, Floortje van Kesteren, Esther M Wiegerinck, Ed Vanbavel, Jan Baan, Riccardo Cocchieri, Bas de Mol, Nils R Planken, Henk A Marquering
Minimally invasive aortic valve replacement (mini-AVR) procedures are a valuable alternative to conventional open heart surgery. Currently, planning of mini-AVR consists of selection of the intercostal space closest to the sinotubular junction on preoperative computer tomography images. We developed an automated algorithm detecting the sinotubular junction (STJ) and intercostal spaces for finding the optimal incision location. The accuracy of the STJ detection was assessed by comparison with manual delineation by measuring the Euclidean distance between the manually and automatically detected points...
November 29, 2016: Medical Engineering & Physics
https://www.readbyqxmd.com/read/27908808/emergency-hybrid-approach-to-ruptured-femoral-pseudoaneurysm-in-hiv-positive-intravenous-drug-abusers
#3
Maurizio Domanin, Giovanni Romagnoni, Silvia Romagnoli, Antonio Rolli, Livio Gabrielli
PURPOSE: Chronic traumatism of the common femoral artery due to intravenous injection in drug abusers, in association with local infections and arterial wall weakening caused by HIV, can lead to the development of pseudoaneurysms. Rupture of pseudoaneurysm is a dramatic event in such patients and its correction is difficult and controversial. Most of the cases reported describe open surgical elective options, that consist in ligation, repair or substitution of the damaged arterial segment, employing when possible biological grafts...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27908501/prospective-evaluation-of-surgical-palliative-care-immersion-training-for-general-surgery-residents
#4
Mustafa Raoof, Lisa O'Neill, Leigh Neumayer, Mindy Fain, Robert Krouse
BACKGROUND: Palliative care competencies in surgical training are recognized to improve the care of surgical patients with advanced or life-threatening illnesses. Formal programs to teach these competencies are lacking. The study aims to assess the feasibility and utility of a unique surgical palliative care immersion training program. STUDY DESIGN: A half-day Surgical Palliative Care Immersion Training (SPCIT) was developed using the American College of Surgeon's manual titled "Surgical Palliative Care: A Resident's Guide" as a framework...
November 27, 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/27906705/arterial-pressure-variation-in-elective-noncardiac-surgery-identifying-reference-distributions-and-modifying-factors
#5
Michael R Mathis, Samuel A Schechtman, Milo C Engoren, Amy M Shanks, Aleda Thompson, Sachin Kheterpal, Kevin K Tremper
BACKGROUND: Assessment of need for intravascular volume resuscitation remains challenging for anesthesiologists. Dynamic waveform indices, including systolic and pulse pressure variation, are demonstrated as reliable measures of fluid responsiveness for mechanically ventilated patients. Despite widespread use, real-world reference distributions for systolic and pulse pressure variation values have not been established for euvolemic intraoperative patients. The authors sought to establish systolic and pulse pressure variation reference distributions and assess the impact of modifying factors...
December 1, 2016: Anesthesiology
https://www.readbyqxmd.com/read/27906169/automated-identification-of-mouse-visual-areas-with-intrinsic-signal-imaging
#6
Ashley L Juavinett, Ian Nauhaus, Marina E Garrett, Jun Zhuang, Edward M Callaway
Intrinsic signal optical imaging (ISI) is a rapid and noninvasive method for observing brain activity in vivo over a large area of the cortex. Here we describe our protocol for mapping retinotopy to identify mouse visual cortical areas using ISI. First, surgery is performed to attach a head frame to the mouse skull (∼1 h). The next day, intrinsic activity across the visual cortex is recorded during the presentation of a full-field drifting bar in the horizontal and vertical directions (∼2 h). Horizontal and vertical retinotopic maps are generated by analyzing the response of each pixel during the period of the stimulus...
January 2017: Nature Protocols
https://www.readbyqxmd.com/read/27903951/a-management-algorithm-for-retained-rectal-foreign-bodies
#7
Shamir O Cawich, Dexter A Thomas, Fawwaz Mohammed, Nahmorah J Bobb, Dorothy Williams, Vijay Naraynsingh
Few authors have proposed therapeutic protocols to manage retained rectal foreign bodies (RFBs). All patients with retained RFBs in hospitals across Trinidad and Tobago over 5 years were identified. Hospital records were retrieved and manually reviewed to extract the following data: demographics, history, foreign body retrieved, clinical signs at presentation, management strategy, duration of hospitalization, and morbidity and mortality. There were 10 patients with RFBs over the study period. The annual incidence of this phenomenon was 0...
November 29, 2016: American Journal of Men's Health
https://www.readbyqxmd.com/read/27903479/cost-effectiveness-analysis-of-the-use-of-a-prophylactic-antibiotic-for-patients-undergoing-lower-limb-amputation-due-to-diabetes-or-vascular-illness-in-colombia
#8
REVIEW
Mateo Ceballos, Luis Esteban Orozco, Carlos Oliver Valderrama, Diana Isabel Londoño, Luz Helena Lugo
BACKGROUND: The use of a prophylactic antibiotic in an amputation surgery is a key element for the successful recovery of the patient. We aim to determine, from the perspective of the Colombian health system, the cost-effectiveness of administering a prophylactic antibiotic among patients undergoing lower limb amputation due to diabetes or vascular illness in Colombia. METHODS: A decision tree was constructed to compare the use and non-use of a prophylactic antibiotic...
November 26, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27890200/-are-there-any-indications-for-surgery-of-distal-radius-malunion-in-elderly-patients
#9
M Rongières
Malunions of the distal radius are associated most of the time with disturbances of the distal radioulnar (DRU) joint. While a corrective osteotomy of the distal radius is a well-known procedure in younger patients, manual workers and active patients, is it justified in independent elderly patients above 70 years of age? These techniques improve function, reorient the articular surfaces, protect against complications such as degenerative osteoarthritis and stiffness of the wrist, and they improve DRU balance...
December 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27889667/the-impact-of-a-pulmonary-recruitment-maneuver-to-reduce-post-laparoscopic-shoulder-pain-a-randomized-controlled-trial
#10
Kyoungho Ryu, Wonjun Choi, Jaegeum Shim, Taejong Song
OBJECTIVE: A pulmonary recruitment maneuver (PRM) can effectively reduce post-laparoscopic shoulder pain (PLSP). However, a high-pressure PRM may cause pulmonary barotrauma. This study aimed to evaluate the efficacy and safety of a PRM using two different maximum inspiratory pressures (40 and 60cmH2O) for reducing PLSP. STUDY DESIGN: Patients undergoing gynecologic laparoscopy were randomly allocated to a control group (n=30), a 40 cmH2O PRM group (n=30), and a 60 cmH2O PRM group (n=30)...
November 16, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/27888421/triple-negative-breast-cancer-has-worse-overall-survival-and-cause-specific-survival-than-non-triple-negative-breast-cancer
#11
Xiaoxian Li, Jing Yang, Limin Peng, Aysegul A Sahin, Lei Huo, Kevin C Ward, Ruth O'Regan, Mylin A Torres, Jane L Meisel
PURPOSE: The current American Joint Committee on Cancer (AJCC) staging manual uses tumor size, lymph node, and metastatic status to stage breast cancer across different subtypes. We examined the prognosis of triple-negative breast cancer (TNBC) versus non-TNBC within the same stages and sub-stages to evaluate whether TNBC had worse prognosis than non-TNBC. METHODS: We reviewed the National Cancer Institute Surveillance, Epidemiology, and End Results (SEER) data and identified 158,358 patients diagnosed with breast cancer from 2010 to 2012...
November 25, 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27885540/automatic-abdominal-multi-organ-segmentation-using-deep-convolutional-neural-network-and-time-implicit-level-sets
#12
Peijun Hu, Fa Wu, Jialin Peng, Yuanyuan Bao, Feng Chen, Dexing Kong
PURPOSE: Multi-organ segmentation from CT images is an essential step for computer-aided diagnosis and surgery planning. However, manual delineation of the organs by radiologists is tedious, time-consuming and poorly reproducible. Therefore, we propose a fully automatic method for the segmentation of multiple organs from three-dimensional abdominal CT images. METHODS: The proposed method employs deep fully convolutional neural networks (CNNs) for organ detection and segmentation, which is further refined by a time-implicit multi-phase evolution method...
November 24, 2016: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/27884788/the-virtual-dissecting-room-creating-highly-detailed-anatomy-models-for-educational-purposes
#13
Marijn Zilverschoon, Koen L Vincken, Ronald L A W Bleys
INTRODUCTION: Virtual 3D models are powerful tools for teaching anatomy. At the present day, there are a lot of different digital anatomy models, most of these commercial applications are based on a 3D model of a human body reconstructed from images with a 1 millimeter intervals. The use of even smaller intervals may result in more details and more realistic appearances of 3D anatomy models. The aim of this study was to create a realistic and highly detailed 3D model of the hand and wrist based on small interval cross-sectional images, suitable for undergraduate and postgraduate teaching purposes with the possibility to perform a virtual dissection in an educational application...
November 21, 2016: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/27883932/biological-response-of-human-suture-mesenchymal-cells-to-titania-nanotube-based-implants-for-advanced-craniosynostosis-therapy
#14
Manpreet Bariana, Prem Dwivedi, Sarbin Ranjitkar, John A Kaidonis, Dusan Losic, Peter J Anderson
Titania nanotubes (TNTs) engineered on titanium (Ti) surfaces (i.e. TNT/Ti) and loaded with specific drugs have been recognised as a promising solution for localised therapeutic delivery to address several medical problems not feasible with conventional drug administration. We propose the use of TNT/Ti protein-releasing implants to treat paediatric craniofacial abnormality in craniosynostosis caused by premature fusion of cranial sutures. In this study, we have analysed the biological response of human suture mesenchymal cells (SMCs), extracted from two different patients undergoing craniofacial reconstruction surgery, at the TNT/Ti implant surface...
November 17, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27873063/-a%C3%A2-new-technique-to-facilitate-donor-preparation-for-dmek-surgery
#15
P W Rieck, T Engels
BACKGROUND: Descemet membrane endothelial keratoplasty (DMEK) is becoming more and more the method of choice to treat corneal endothelial diseases in specialized centers. The reasons that prevent this technique from becoming widespread are the delicate donor tissue preparation. By inverting the curvature of the cornea from convex to concave after mounting onto an artificial anterior chamber, we developed a combined manual delamination and hydrodissection technique, which allows a rapid and endothelium-preserving method of separating donor Descemet membranes from the underlying stroma...
November 21, 2016: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/27872807/identification-of-the-stria-medullaris-thalami-using-diffusion-tensor-imaging
#16
Ryan B Kochanski, Robert Dawe, Daniel B Eddelman, Mehmet Kocak, Sepehr Sani
BACKGROUND: Deep brain stimulation (DBS) via anatomical targeting of white matter tracts defined by diffusion tensor imaging (DTI) may be a useful tool in the treatment of pathologic neurophysiologic circuits implicated in certain disease states like treatment resistant depression (TRD). We sought to determine if DTI could be used to define the stria medullaris thalami (SM), the major afferent white matter pathway to the lateral habenula (LHb), a thalamic nucleus implicated in the pathophysiology of TRD...
2016: NeuroImage: Clinical
https://www.readbyqxmd.com/read/27871567/intraoperative-medications-associated-with-hemodynamically-significant-anaphylaxis
#17
Robert E Freundlich, Neal M Duggal, Michelle Housey, Tyler T Tremper, Milo C Engoren, Sachin Kheterpal
STUDY OBJECTIVE: To facilitate the identification of drugs and patient factors associated with hemodynamically significant anaphylaxis. DESIGN: Using an existing database containing complete perioperative records, instances of hemodynamically significant anaphylaxis were identified using a physiologic and treatment-based screening algorithm. All cases were manually reviewed by 2 clinicians, with a third adjudicating disagreements, and confirmed cases were matched 3:1 with control cases...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27867418/crf-based-model-for-instrument-detection-and-pose-estimation-in-retinal-microsurgery
#18
Mohamed Alsheakhali, Abouzar Eslami, Hessam Roodaki, Nassir Navab
Detection of instrument tip in retinal microsurgery videos is extremely challenging due to rapid motion, illumination changes, the cluttered background, and the deformable shape of the instrument. For the same reason, frequent failures in tracking add the overhead of reinitialization of the tracking. In this work, a new method is proposed to localize not only the instrument center point but also its tips and orientation without the need of manual reinitialization. Our approach models the instrument as a Conditional Random Field (CRF) where each part of the instrument is detected separately...
2016: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/27866037/preoperative-preparation-of-a-patient-with-grade-ii-leg-lymphedema-for-his-third-hip-replacement-surgery
#19
Maria de Fátima Guerreiro Godoy, Livia Maria Pereira de Godoy, Renata Lopes Pinto, Jose Maria Pereira de Godoy
INTRODUCTION: The treatment of lymphedema remains a challenge to modern medicine, due to the characteristics of the disease. CASE PRESENTATION: Report on the case of a 75-year-old patient with lower limb lymphedema for treatment prior to surgery. At age 45, he made the first hip replacement surgery in the left leg. One year later he performed the same surgery on the right leg. At that time his legs had slight ankle edema mainly of the left leg and the entire left leg was affected by lymphedema...
September 28, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27863086/is-it-important-to-palpate-lymph-nodes-in-open-surgery-for-colorectal-cancer
#20
Yusuke Yamaoka, Yusuke Kinugasa, Akio Shiomi, Tomohiro Yamaguchi, Hiroyasu Kagawa, Yushi Yamakawa, Akinobu Furutani, Masakatsu Numata
INTRODUCTION: In laparoscopic or robotic surgery, surgeons cannot directly palpate lymph nodes (LN), which could be considered a shortcoming in that procedure. This study was performed to evaluate the importance of palpation diagnosis of LN metastasis in colorectal cancer surgery. METHODS: This study enrolled 408 patients who underwent curative resection for primary colorectal cancer in our department in 2014. The diameter of each manually dissected LN was measured, and the LN was then examined by palpation to determine whether it was metastatic based on its consistency...
November 8, 2016: Asian Journal of Endoscopic Surgery
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