keyword
MENU ▼
Read by QxMD icon Read
search

learning curve

keyword
https://www.readbyqxmd.com/read/29679185/comparing-learning-curves-of-two-established-single-shot-devices-for-ablation-of-atrial-fibrillation
#1
Patrick Leitz, G Mönnig, F Güner, D G Dechering, K Wasmer, F Reinke, Philipp S Lange, L Eckardt, G Frommeyer
PURPOSE: We compared the contour of learning curves of two "single-shot" devices used for pulmonary vein isolation (PVI) for safety and procedural data. METHODS: We performed a retrospective analysis comparing the first 60 PVI performed at our center using a pulmonary vein ablation catheter (PVAC) array (39 male, mean age 57 years, 42 paroxysmal AF) to the first 60 first PVI using the Cryoballoon (44 male, mean age 59 years, 22 paroxysmal AF). Both groups were further divided into tertiles, where T1 regroups the first 20 ablations, T2 the following 20, and T3 the last 20 ablations...
April 20, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29676699/everted-suturing-of-the-inferior-vena-cava-is-addressed-in-the-abdominal-mouse-heart-transplant-model
#2
Hui Ren, Jiabin Zhang, Hongbo Wang, Shaotang Zhou
OBJECTIVES: Our objective was to investigate the techniques of vessel suturing in the abdominal mouse cardiac transplant model and animal outcomes. MATERIALS AND METHODS: Our mouse group included 92 female inbred mice, in which 46 abdominal mouse heart transplants were performed. During transplant, the openings for the aorta and the inferior vena cava were not parallel. With everted anastomosis, the ascending aortae and the pulmonary arteries of donors were connected to the abdominal aortae and interior vena cavae of recipients, respectively, with 11-0 Prolene suture...
April 20, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29675649/an-easier-lichtenstein-hernioplasty
#3
L Zogbi
BACKGROUND: The Lichtenstein technique is used worldwide because of its rapid learning curve, good results and low recurrence rates. In this approach, a lateral tie-shaped incision is made on the mesh, involving the spermatic funiculus and thus correcting the deep inguinal ring defect by narrowing it. The lateral tie, however, does not prevent the wrinkling of the upper portion of the mesh that is caused by the arched shape of the inguinal ligament, where the lower edge of the prosthesis is sutured...
April 19, 2018: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/29674843/intraoperative-complications-of-refractive-small-incision-lenticule-extraction-in-the-early-learning-curve
#4
Abdelmonem M Hamed, Shereef M Abdelwahab, Tarek T Soliman
Purpose: To study the intraoperative complications of refractive small incision lenticule extraction (ReSMILE push-up technique), and to record the mean intraoperative duration time of all surgeries for the refractive surgeon in his early learning curve. Setting: Ebsar Eye Center, Benha, Egypt. Design: A prospective, single-center, cohort clinical study. Methods: This prospective, single-center, cohort clinical study was done on patients with myopia and myopic astigmatism, who were enrolled for SMILE surgeries...
2018: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29673945/three-dimensional-texture-analysis-with-machine-learning-provides-incremental-predictive-information-for-successful-shock-wave-lithotripsy-in-patients-with-kidney-stones
#5
Manoj Mannil, Jochen von Spiczak, Thomas Hermanns, Cédric Poyet, Hatem Alkadhi, Christian Daniel Fankhauser
PURPOSE: To determine the predictive value of three-dimensional texture analysis (3D-TA) in computed tomography (CT) images for successful shock wave lithotripsy (SWL) in patients with kidney stones. MATERIAL AND METHODS: Patients with pre and postoperative CT scans, previously untreated kidney stones and a stone diameter of 5-20 mm were included. A total of 224 3D-TA features of each kidney stone, including the attenuation measured in Hounsfield Units (HU), and the clinical variables body mass index (BMI), initial stone size, and skin-to-stone distance (SSD) were analyzed using five commonly used machine learning models...
April 16, 2018: Journal of Urology
https://www.readbyqxmd.com/read/29672663/analysis-of-long-noncoding-rnas-highlights-region-specific-altered-expression-patterns-and-diagnostic-roles-in-alzheimer-s-disease
#6
Meng Zhou, Hengqiang Zhao, Xinyu Wang, Jie Sun, Jianzhong Su
Increasing evidence has revealed the multiple roles of long noncoding RNAs (lncRNAs) in neurodevelopment, brain function and aging, and their dysregulation was implicated in many types of neurological diseases. However, expression pattern and diagnostic role of lncRNAs in Alzheimer's disease (AD) remain largely unknown and has gained significant attention. In this study, we performed a comparative analysis for lncRNA expression profiles in four brain regions in brain aging and AD. Our analysis revealed age- and disease-dependent region-specific lncRNA expression patterns in aging and AD...
April 17, 2018: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/29672639/computer-aided-diagnosis-of-lung-nodule-using-gradient-tree-boosting-and-bayesian-optimization
#7
Mizuho Nishio, Mitsuo Nishizawa, Osamu Sugiyama, Ryosuke Kojima, Masahiro Yakami, Tomohiro Kuroda, Kaori Togashi
We aimed to evaluate a computer-aided diagnosis (CADx) system for lung nodule classification focussing on (i) usefulness of the conventional CADx system (hand-crafted imaging feature + machine learning algorithm), (ii) comparison between support vector machine (SVM) and gradient tree boosting (XGBoost) as machine learning algorithms, and (iii) effectiveness of parameter optimization using Bayesian optimization and random search. Data on 99 lung nodules (62 lung cancers and 37 benign lung nodules) were included from public databases of CT images...
2018: PloS One
https://www.readbyqxmd.com/read/29672420/the-arrival-of-robotics-in-spine-surgery-a-review-of-the-literature
#8
Alexander Ghasem, Akhil Sharma, Dylan N Greif, Milad Alam, Motasem Al Maaieh
STUDY DESIGN: Systematic Review. OBJECTIVE: The authors aim to review comparative outcome measures between robotic and free-hand spine surgical procedures including: accuracy of spinal instrumentation, radiation exposure, operative time, hospital stay, and complication rates. SUMMARY OF BACKGROUND DATA: Misplacement of pedicle screws in conventional open as well as minimally invasive surgical procedures has prompted the need for innovation and allowed the emergence of robotics in spine surgery...
April 18, 2018: Spine
https://www.readbyqxmd.com/read/29672344/preoperative-predictive-factors-of-conversions-in-laparoscopic-splenectomies
#9
Rosario Vecchio, Sebastian M Milluzzo, Graziano Troina, Emma Cacciola, Rossella R Cacciola, Renato S Catalano, Marco Caputo
PURPOSE: Presently, laparoscopic splenectomy (LS) is being performed for several indications in clinical practice. However, conversion to open surgery is occasionally required in some patients. We analyzed the intraoperative indications and potential preoperative predictors associated with conversion to open surgery in those presenting for LS. METHODS: We reviewed 107 patients who underwent LS. We analyzed the surgical indications, spleen size, surgical procedure performed, operative time, rate of and indications for conversions, as well as postoperative complications...
April 18, 2018: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/29671802/computational-prediction-and-analysis-of-associations-between-small-molecules-and-binding-associated-s-nitrosylation-sites
#10
Guohua Huang, Jincheng Li, Chenglin Zhao
Interactions between drugs and proteins occupy a central position during the process of drug discovery and development. Numerous methods have recently been developed for identifying drug⁻target interactions, but few have been devoted to finding interactions between post-translationally modified proteins and drugs. We presented a machine learning-based method for identifying associations between small molecules and binding-associated S-nitrosylated (SNO-) proteins. Namely, small molecules were encoded by molecular fingerprint, SNO-proteins were encoded by the information entropy-based method, and the random forest was used to train a classifier...
April 19, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29671399/automatic-infection-detection-based-on-electronic-medical-records
#11
Huaixiao Tou, Lu Yao, Zhongyu Wei, Xiahai Zhuang, Bo Zhang
BACKGROUND: Making accurate patient care decision, as early as possible, is a constant challenge, especially for physicians in the emergency department. The increasing volumes of electronic medical records (EMRs) open new horizons for automatic diagnosis. In this paper, we propose to use machine learning approaches for automatic infection detection based on EMRs. Five categories of information are utilized for prediction, including personal information, admission note, vital signs, diagnose test results and medical image diagnose...
April 11, 2018: BMC Bioinformatics
https://www.readbyqxmd.com/read/29671296/minimally-invasive-tubular-retractor-assisted-biopsy-and-resection-of-subcortical-intra-axial-gliomas-and-other-neoplasms
#12
Kelly Gassie, Olindi Wijesekera, Kaisorn L Chaichana
Deep-seated, subcortical tumors represent a surgical challenge. The traditional approach to these lesions involve large craniotomies, fixed retractor systems, and extensive white matter dissection, each with their own associated morbidity. We describe our experience with the use of tubular retractors for accessing these deep-seated lesions. Fifty consecutive patients operated on for an intra-axial brain tumor (both biopsies and resection) from January 2016 to December 2017 by a single surgeon using tubular retractors with exoscopic visualization were prospectively identified and included in this consecutive case series...
April 18, 2018: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/29669067/microvascular-anastomosis-proposition-of-a-learning-curve
#13
Pooneh Mokhtari, Ali Tayebi Meybodi, Arnau Benet, Michael T Lawton
BACKGROUND: Learning to perform a microvascular anastomosis is one of the most difficult tasks in cerebrovascular surgery. Previous studies offer little regarding the optimal protocols to maximize learning efficiency. This failure stems mainly from lack of knowledge about the learning curve of this task. OBJECTIVE: To delineate this learning curve and provide information about its various features including acquisition, improvement, consistency, stability, and recall...
April 14, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29668906/learning-curve-for-robotic-esophagectomy-and-dissection-of-bilateral-recurrent-laryngeal-nerve-nodes-for-esophageal-cancer
#14
S Y Park, D J Kim, D R Kang, S J Haam
No abstract text is available yet for this article.
April 13, 2018: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/29666662/prediction-of-gpcr-ligand-binding-using-machine-learning-algorithms
#15
Sangmin Seo, Jonghwan Choi, Soon Kil Ahn, Kil Won Kim, Jaekwang Kim, Jaehyuck Choi, Jinho Kim, Jaegyoon Ahn
We propose a novel method that predicts binding of G-protein coupled receptors (GPCRs) and ligands. The proposed method uses hub and cycle structures of ligands and amino acid motif sequences of GPCRs, rather than the 3D structure of a receptor or similarity of receptors or ligands. The experimental results show that these new features can be effective in predicting GPCR-ligand binding (average area under the curve [AUC] of 0.944), because they are thought to include hidden properties of good ligand-receptor binding...
2018: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/29665124/how-does-dementia-with-lewy-bodies-start-prodromal-cognitive-changes-in-rem-sleep-behavior-disorder
#16
Daphné Génier Marchand, Ronald B Postuma, Frédérique Escudier, Jessie De Roy, Amélie Pelletier, Jacques Montplaisir, Jean-François Gagnon
Objective We describe the progression of cognitive decline and identify the predictive values of cognitive tests in three groups of REM sleep behavior disorder (RBD) patients classified at their last follow-up as having Parkinson's disease (PD), dementia with Lewy bodies (DLB), or still-idiopathic. Methods Patients (n=109) underwent polysomnographic, neurological, and neuropsychological assessments. We used linear mixed-model analyses to compare the progression of cognitive test performance between the three groups over a three-year prodromal period, and performed linear regressions for a six-year prodromal period...
April 17, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29664692/comparison-of-short-term-functional-oncological-and-perioperative-outcomes-between-laparoscopic-and-robotic-partial-nephrectomy-beyond-the-learning-curve
#17
Quentin Alimi, Benoit Peyronnet, Philippe Sebe, Jean-François Cote, Solene-Florence Kammerer-Jacquet, Zine-Eddine Khene, Benjamin Pradere, Romain Mathieu, Gregory Verhoest, Bertrand Guillonneau, Karim Bensalah
PURPOSE: To compare the short-term outcomes of robot-assisted partial nephrectomy (RPN) and laparoscopic partial nephrectomy (LPN) when performed by highly experienced surgeons. METHODS: A prospective multicenter study was conducted, including the 50 last patients having undergone LPN and RPN for T1-T2 renal tumors in two institutions between 2013 and 2016, performed by two different surgeons with an experience of over 200 procedures each in LPN and RPN, respectively, at the beginning of the study...
April 17, 2018: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29664136/transurethral-seminal-vesiculoscopy-acts-as-a-therapeutic-investigation-for-intractable-hemospermia-step-by-step-illustrations-and-single-surgeon-experience
#18
Ju-Chuan Hu, Chuan-Shu Chen
OBJECTIVE: To describe the methodology of transurethral seminal vesiculoscopy and the anatomy of the seminal tract, and to report a single-surgeon experience with this procedure. METHODS: A total of 38 consecutive patients with intractable macroscopic hemospermia were enrolled from January 2010 to July 2016. A 6/7.5-Fr semirigid ureteroscope was used to enter the seminal tract by one of these two approaches: through either a trans-ejaculatory duct opening or a trans-utricle fenestration...
April 17, 2018: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29663562/atrial-fibrillation-ablation-using-cryoballoon-technology-recent-advances-and-practical-techniques
#19
REVIEW
Shaojie Chen, Boris Schmidt, Stefano Bordignon, Fabrizio Bologna, Laura Perrotta, Takahiko Nagase, K R Julian Chun
Atrial fibrillation (AF) affects 1-2% of the population, and its prevalence is estimated to double in the next 50 years as the population ages. AF results in impaired patients' life quality, deteriorated cardiac function and even increased mortality. Antiarrhythmic drugs frequently fail to restore sinus rhythm. Catheter ablation is a valuable treatment approach for AF, even as a first-line therapy strategy in selected patients. Effective electrical pulmonary vein isolation (PVI) is the cornerstone of all AF ablation strategies...
April 16, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29663399/multidimensional-analyses-of-the-learning-curve-for-single-incision-plus-one-port-laparoscopic-surgery-for-sigmoid-colon-and-upper-rectal-cancer
#20
Junmeng Li, Yanan Wang, Dong Liu, Haipeng Zhou, Tingyu Mou, Guoxin Li, Haijun Deng
BACKGROUND AND OBJECTIVES: Single-incision plus one port surgery (SILS + 1) provides the advantages of being minimally invasive and easier to perform than pure single-incision laparoscopic surgery. The aim of this study was to investigate the learning curve (LC) for SILS + 1 for sigmoid colon and upper rectal cancer. METHOD: From November 2012 to May 2014, a series of 85 consecutive patients underwent selective SLIS + 1 for sigmoid colon and upper rectal cancer performed by a single surgeon at Nanfang Hospital...
April 17, 2018: Journal of Surgical Oncology
keyword
keyword
57574
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"