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Clinical prediction rule

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https://www.readbyqxmd.com/read/28934822/stent-placement-for-benign-esophageal-leaks-perforations-and-fistulae-a-clinical-prediction-rule-for-successful-leakage-control
#1
Emo E van Halsema, Wouter F W Kappelle, Bas L A M Weusten, Robert Lindeboom, Mark I van Berge Henegouwen, Paul Fockens, Frank P Vleggaar, Manon C W Spaander, Jeanin E van Hooft
Background and study aims Sealing esophageal leaks by stent placement allows healing in 44 % - 94 % of patients. We aimed to develop a prediction rule to predict the chance of successful stent therapy. Patients and methods In this multicenter retrospective cohort study, patients with benign upper gastrointestinal leakage treated with stent placement were included. We used logistic regression analysis including four known clinical predictors of stent therapy outcome. The model performance to predict successful stent therapy was evaluated in an independent validation sample...
September 21, 2017: Endoscopy
https://www.readbyqxmd.com/read/28933237/cross-validation-and-development-of-empirically-derived-adhd-assessment-strategies-insights-from-the-national-longitudinal-study-of-adolescent-health-add-health
#2
Shirag K Shemmassian, Steve S Lee
OBJECTIVE: There is replicated evidence that individual ADHD symptoms differentially predict ADHD diagnostic status, and that non- Diagnostic and Statistical Manual of Mental Disorders (DSM)-based symptom algorithms are superior to DSM criteria for ruling in or ruling out ADHD. However, these findings have been limited to case-control samples, despite the need to replicate them in independent and more representative samples and to increase their generalizability. METHOD: We analyzed the base rates and psychometric properties of ADHD symptoms in the population-based National Longitudinal Study of Adolescent Health (Add Health; http://www...
September 1, 2017: Journal of Attention Disorders
https://www.readbyqxmd.com/read/28930038/outcome-variation-among-canadian-trauma-centres-toward-a-clinical-prediction-rule-for-standardizing-approaches-to-clinical-assessment-of-hemorrhage
#3
Alexandre Tran, Maher Matar, Jacinthe Lampron, Ewout Steyerberg, Christian Vaillancourt, Monica Taljaard
No abstract text is available yet for this article.
October 2017: Canadian Journal of Surgery. Journal Canadien de Chirurgie
https://www.readbyqxmd.com/read/28927984/limiting-thoracic-ct-a-rule-for-use-during-initial-pediatric-trauma-evaluation
#4
Caroline Q Stephens, Meredith C Boulos, Christopher R Connelly, Arvin Gee, Mubeen Jafri, Sanjay Krishnaswami
BACKGROUND: Despite increases in imaging guidelines for other body-regions during initial trauma assessment and the demonstrated utility of chest radiographs (CXR), guidelines for use of thoracic computed-tomography (TCT) are lacking. We hypothesized that TCT utilization had not decreased relative to other protocolized CTs, and mechanism and CXR could together predict significant injury independent of TCT. METHODS: We performed a retrospective review of blunt trauma patients ≤18 y...
September 4, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28926500/occipital-lobe-and-posterior-cingulate-perfusion-in-the-prediction-of-dementia-with-lewy-body-pathology-in-a-clinical-sample
#5
Angus M J Prosser, Livia Tossici-Bolt, Christopher M Kipps
OBJECTIVE: The aim of this study was to investigate the diagnostic value of occipital lobe and posterior cingulate perfusion in predicting dopamine transporter imaging outcome using a quantitative measure of analysis. PATIENTS AND METHODS: In total, 99 patients with cognitive complaints who had undergone both technetium-99m-hexamethylpropyleneamine oxime single-photon emission computed tomography (Tc-HMPAO SPECT) and I ioflupane (I-FP-CIT also called DaTSCAN) imaging in a dementia diagnostic center were analyzed...
September 18, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28922552/an-individualized-gene-expression-signature-for-prediction-of-lung-adenocarcinoma-metastases
#6
Lishuang Qi, Tianhao Li, Gengen Shi, Jiasheng Wang, Xin Li, Sainan Zhang, Libin Chen, Yuan Qin, Yunyan Gu, Wenyuan Zhao, Zheng Guo
Our laboratory previously reported an individual-level signature consisting of nine gene pairs, named 9-GPS. This signature was developed by training on microarray expression data and validated using three independent integrated microarray data sets, with samples of stage I non-small cell lung cancer after complete surgical resection. In this study, we first validated the cross-platform robustness of 9-GPS by demonstrating that 9-GPS could significantly stratify the overall survival of 213 stage I lung adenocarcinoma (LUAD) patients detected with RNA-sequencing platform in The Cancer Genome Atlas (log-rank p = 0...
September 18, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28918286/identifying-combinatorial-biomarkers-by-association-rule-mining-in-the-camd-alzheimer-s-database
#7
Balázs Szalkai, Vince K Grolmusz, Vince I Grolmusz
The concept of combinatorial biomarkers was conceived when it was noticed that simple biomarkers are often inadequate for recognizing and characterizing complex diseases. Here we present an algorithmic search method for complex biomarkers which may predict or indicate Alzheimer's disease (AD) and other kinds of dementia. We show that our method is universal since it can describe any Boolean function for biomarker discovery. We applied data mining techniques that are capable to uncover implication-like logical schemes with detailed quality scoring...
August 17, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28915930/predicting-activities-of-daily-living-for-cancer-patients-using-an-ontology-guided-machine-learning-methodology
#8
Hua Min, Hedyeh Mobahi, Katherine Irvin, Sanja Avramovic, Janusz Wojtusiak
BACKGROUND: Bio-ontologies are becoming increasingly important in knowledge representation and in the machine learning (ML) fields. This paper presents a ML approach that incorporates bio-ontologies and its application to the SEER-MHOS dataset to discover patterns of patient characteristics that impact the ability to perform activities of daily living (ADLs). Bio-ontologies are used to provide computable knowledge for ML methods to "understand" biomedical data. RESULTS: This retrospective study included 723 cancer patients from the SEER-MHOS dataset...
September 16, 2017: Journal of Biomedical Semantics
https://www.readbyqxmd.com/read/28915847/absence-of-ultrasound-inflammation-in-patients-presenting-with-arthralgia-rules-out-the-development-of-arthritis
#9
Myrthe van der Ven, M van der Veer-Meerkerk, D F Ten Cate, N Rasappu, M R Kok, D Csakvari, J M W Hazes, A H Gerards, J J Luime
BACKGROUND: To decrease the burden of disease of rheumatoid arthritis (RA), patients at risk for RA need to be identified as early as possible, preferably when no clinically apparent synovitis can be detected. Up to now, it has been fairly difficult to identify those patients with arthralgia who develop inflammatory arthritis (IA), but recent studies using ultrasound (US) suggest that earlier detection is possible. We aimed to identify patients with arthralgia developing IA within 1 year using US to detect subclinical synovitis at first consultation...
September 15, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28914640/machine-learning-novel-bioinformatics-approaches-for-combating-antimicrobial-resistance
#10
Nenad Macesic, Fernanda Polubriaginof, Nicholas P Tatonetti
PURPOSE OF REVIEW: Antimicrobial resistance (AMR) is a threat to global health and new approaches to combating AMR are needed. Use of machine learning in addressing AMR is in its infancy but has made promising steps. We reviewed the current literature on the use of machine learning for studying bacterial AMR. RECENT FINDINGS: The advent of large-scale data sets provided by next-generation sequencing and electronic health records make applying machine learning to the study and treatment of AMR possible...
September 12, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28906386/development-and-validation-of-a-prediction-score-system-in-lupus-nephritis
#11
Yi Tang, Wei Qin, Wei Peng, Ye Tao
The risk assessment for developing end-stage renal disease (ESRD) remains unclear in patients with lupus nephritis (LN). The purpose of this study was to develop and validate a prediction rule for estimating the individual risk of ESRD in patients with LN using clinical and pathological data.A total of 599 patients with LN diagnosed by renal biopsy between June 2009 and June 2014 in West China Hospital of Sichuan University were retrospectively followed. Patients were randomly divided into derivation cohort (n = 379) and validation cohort (n = 220)...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28906304/comparison-of-expert-opinion-majority-rule-and-a-clinical-prediction-rule-to-estimate-distal-radius-malalignment
#12
Toni Luokkala, Tapio Flinkkilä, Juha Paloneva, Teemu V Karjalaine
OBJECTIVES: To investigate the ability of individual surgeons (expert opinion [EO]) to predict distal radius fracture healing above a threshold malalignment compared with the majority prediction of the group of surgeons ("majority rule," [MR]) and a statistically derived clinical prediction formula (Edinburgh wrist calculator [EWC]). DESIGN: Comparative diagnostic study from prospectively collected data of consecutive patients. SETTING: Two academic level 1 and one academic level 2 trauma centers...
September 11, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28904481/external-validation-of-risk-prediction-scores-for-invasive-candidiasis-in-a-medical-surgical-intensive-care-unit-an-observational-study
#13
Armin Ahmed, Arvind Kumar Baronia, Afzal Azim, Rungmei S K Marak, Reema Yadav, Preeti Sharma, Mohan Gurjar, Banani Poddar, Ratender Kumar Singh
BACKGROUND: The aim of this study was to conduct external validation of risk prediction scores for invasive candidiasis. METHODS: We conducted a prospective observational study in a 12-bedded adult medical/surgical Intensive Care Unit (ICU) to evaluate Candida score >3, colonization index (CI) >0.5, corrected CI >0.4 (CCI), and Ostrosky's clinical prediction rule (CPR). Patients' characteristics and risk factors for invasive candidiasis were noted. Patients were divided into two groups; invasive candidiasis and no-invasive candidiasis...
August 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28895526/molecular-testing-for-lynch-syndrome-in-people-with-colorectal-cancer-systematic-reviews-and-economic-evaluation
#14
Tristan Snowsill, Helen Coelho, Nicola Huxley, Tracey Jones-Hughes, Simon Briscoe, Ian M Frayling, Chris Hyde
BACKGROUND: Inherited mutations in deoxyribonucleic acid (DNA) mismatch repair (MMR) genes lead to an increased risk of colorectal cancer (CRC), gynaecological cancers and other cancers, known as Lynch syndrome (LS). Risk-reducing interventions can be offered to individuals with known LS-causing mutations. The mutations can be identified by comprehensive testing of the MMR genes, but this would be prohibitively expensive in the general population. Tumour-based tests - microsatellite instability (MSI) and MMR immunohistochemistry (IHC) - are used in CRC patients to identify individuals at high risk of LS for genetic testing...
September 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/28888269/depression-is-associated-with-recurrent-chest-pain-with-or-without-coronary-artery-disease-a-prospective-cohort-study-in-the-emergency-department
#15
Yeunjung Kim, Morgan Soffler, Summer Paradise, Qurat-Ul-Ain Jelani, James Dziura, Rajita Sinha, Basmah Safdar
BACKGROUND: Only a small fraction of acute chest pain in the emergency department (ED) is due to obstructive coronary artery disease (CAD). ED chest pain remains associated with high rates of recidivism, often in the presence of nonobstructive CAD. Psychological states such as depression, anxiety, and elevation of perceived stress may account for this finding. The objective of the study was to determine whether psychological states predict recurrent chest pain (RCP). METHODS: We conducted a prospective cohort study of low- to moderate-cardiac risk ED patients admitted to the Yale Chest Pain Center with acute chest pain...
September 2017: American Heart Journal
https://www.readbyqxmd.com/read/28888253/further-evaluation-of-factors-that-may-predict-biphasic-reactions-in-emergency-department-anaphylaxis-patients
#16
Sangil Lee, Alexa Peterson, Christine M Lohse, Erik P Hess, Ronna L Campbell
BACKGROUND: Anaphylaxis is a systemic allergic reaction that is commonly treated in the emergency department (ED). The risk of a biphasic reaction is the rationale for observation. OBJECTIVE: To derive a prediction rule to stratify ED anaphylaxis patients at risk of a biphasic reaction. METHODS: We conducted an observational study of a cohort of patients presenting to an academic ED with signs and symptoms of anaphylaxis. We collected clinical data on biphasic reactions meeting National Institutes of Allergy and Infectious Disease/Food Allergy and Anaphylaxis Network diagnostic criteria...
September 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28885787/an-inexpensive-point-of-care-urine-test-for-bladder-cancer-in-patients-undergoing-hematuria-evaluation
#17
Abhinav P Acharya, Kathryn M Theisen, Andres Correa, Thiagarajan Meyyappan, Abraham Apfel, Tao Sun, Tatum V Tarin, Steven R Little
Although hematuria (blood in urine) is the most common symptom of bladder cancer, 70-98% of hematuria cases are benign. These hematuria patients unnecessarily undergo costly, invasive, and expensive evaluation for bladder cancer. Therefore, there remains a need for noninvasive office-based tests that can rapidly and reliably rule out bladder cancer in patients undergoing hematuria evaluation. Herein, a clinical assay for matrix metalloproteinases ("Ammps") is presented, which generates a visual signal based on the collagenase activity (in urine of patients) on the Ammps substrates...
September 8, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28884264/ambulatory-screening-tool-for-sleep-apnea-analyzing-a-single-lead-electrocardiogram-signal-ecg
#18
Solveig Magnusdottir, Hugi Hilmisson
STUDY OBJECTIVE: The goal was to determine the utility and accuracy of automated analysis of single-lead electrocardiogram (ECG) data using two algorithms, cardiopulmonary coupling (CPC), and cyclic variation of heart rate (CVHR) to identify sleep apnea (SA). METHODS: The CPC-CVHR algorithms were applied to identify SA by analyzing ECG from diagnostic polysomnography (PSG) from 47 subjects. The studies were rescored according to updated AASM scoring rules, both manually by a certified technologist and using an FDA-approved automated scoring software, Somnolyzer (Philips Inc...
September 7, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28880046/clinical-decisions-support-malfunctions-in-a-commercial-electronic-health-record
#19
Steven Z Kassakian, Thomas R Yackel, Paul N Gorman, David A Dorr
OBJECTIVES: Determine if clinical decision support (CDS) malfunctions occur in a commercial electronic health record (EHR) system, characterize their pathways and describe methods of detection. METHODS: We retrospectively examined the firing rate for 226 alert type CDS rules for detection of anomalies using both expert visualization and statistical process control (SPC) methods over a five year period. Candidate anomalies were investigated and validated. RESULTS: Twenty-one candidate CDS anomalies were identified from 8,300 alert-months...
September 6, 2017: Applied Clinical Informatics
https://www.readbyqxmd.com/read/28877157/external-validation-of-six-pediatric-fever-and-neutropenia-clinical-decision-rules
#20
Gabrielle M Haeusler, Karin A Thursky, Monica A Slavin, Francoise Mechinaud, Franz E Babl, Penelope Bryant, Richard De Abreu Lourenco, Robert Phillips
BACKGROUND: Fever and neutropenia (FN) clinical decision rules (CDRs) are recommended to help distinguish children with cancer at high and low risk of severe infection. The aim of this study was to validate existing pediatric FN CDRs, designed to stratify children with cancer at high or low risk of serious infection or medical complication. METHODS: Pediatric CDRs suitable for validation were identified from a literature search. Relevant data were extracted from an existing dataset of 650 retrospective FN episodes in children with cancer...
September 5, 2017: Pediatric Infectious Disease Journal
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