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Clinical decision and prediction rules

Alvin Rajkomar, Joanne Wing Lan Yim, Kevin Grumbach, Ami Parekh
BACKGROUND: Characterizing patient complexity using granular electronic health record (EHR) data regularly available to health systems is necessary to optimize primary care processes at scale. OBJECTIVE: To characterize the utilization patterns of primary care patients and create weighted panel sizes for providers based on work required to care for patients with different patterns. METHODS: We used EHR data over a 2-year period from patients empaneled to primary care clinicians in a single academic health system, including their in-person encounter history and virtual encounters such as telephonic visits, electronic messaging, and care coordination with specialists...
October 14, 2016: JMIR Medical Informatics
E Tan, F Lin, L Sheck, P Salmon, S Ng
PURPOSE: To derive a decision rule for predicting surgical complexity in periorbital basal cell carcinoma (pBCC). DESIGN: Prospective, cohort study. PARTICIPANTS: Patients referred to an oculoplastic service for excision of pBCC from September 2010 to November 2015 METHODS: This study was conducted at two centres in New Zealand from September 2010 to November 2015. Baseline demographic information, and an initial assessment of operative complexity (a four-point grading scale) were collected...
October 14, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
Susana Garcia-Gutierrez, José Maria Quintana, Ane Antón-Ladislao, Maria Soledad Gallardo, Esther Pulido, Irene Rilo, Elena Zubillaga, Miren Morillas, José Juan Onaindia, Nekane Murga, Ricardo Palenzuela, José González Ruiz
Our aims were to create and validate a clinical decision rule to assess severity in acute heart failure. We conducted a prospective cohort study of patients with symptoms of acute heart failure who attended the emergency departments (EDs) of three hospitals between April 2011 and April 2013. The following data were collected on arrival to or during the stay in the ED: baseline severity of symptoms; presence of decompensated comorbidities; number of hospital admissions/visits to EDs for acute heart failure during the previous 24 months; triggers of the exacerbation; clinical signs and symptoms; results of ancillary tests requested in the ED; treatments prescribed; and response to the initial treatment in the ED...
October 11, 2016: Internal and Emergency Medicine
L M Van der Pol, A T A Mairuhu, C Tromeur, F Couturaud, M V Huisman, F A Klok
Because pregnant women have an increased risk of venous thromboembolism (VTE) and at the same time normal pregnancy is associated with symptoms, mimicking those present in the setting of acute pulmonary embolism (PE), the latter diagnosis is frequently suspected in this patient category. Since imaging tests expose both mother and foetus to ionizing radiation, the ability to rule out PE based on non-radiological diagnostic tests is of paramount importance. However, clinical decision rules have only been scarcely evaluated in the pregnant population with suspected PE, while D-dimer levels lose diagnostic accuracy due to a physiological increase during normal pregnancy...
September 29, 2016: Blood Reviews
Brit Long, Alex Koyfman
BACKGROUND: Chest pain accounts for 10% of emergency department (ED) visits annually, and many of these patients are admitted because of potentially life-threatening conditions. A substantial percentage of patients with chest pain are at low risk for a major cardiac adverse event (MACE). OBJECTIVE: We investigated controversies in the evaluation of patients with low-risk chest pain, including clinical scores, decision pathways, and shared decision-making. DISCUSSION: ED patients with chest pain who have negative biomarker results and nonischemic electrocardiograms are at low risk for MACE...
September 27, 2016: Journal of Emergency Medicine
Donald A Szlosek, Jonathan Ferrett
INTRODUCTION: As the number of clinical decision support systems (CDSSs) incorporated into electronic medical records (EMRs) increases, so does the need to evaluate their effectiveness. The use of medical record review and similar manual methods for evaluating decision rules is laborious and inefficient. The authors use machine learning and Natural Language Processing (NLP) algorithms to accurately evaluate a clinical decision support rule through an EMR system, and they compare it against manual evaluation...
2016: EGEMS
Alan H Weintraub, Donald J Gerber, Robert G Kowalski
OBJECTIVE: To describe incidence, clinical characteristics, complications, and outcomes in post-traumatic hydrocephalus (PTH) following traumatic brain injury (TBI) for patients treated in an inpatient rehabilitation program. DESIGN: Cohort study with retrospective comparative analysis SETTING: Inpatient rehabilitation hospital PARTICIPANTS: All patients admitted for TBI from 2009 to 2013 diagnosed with PTH, defined as ventriculomegaly, delayed clinical recovery discordant with injury severity, hydrocephalus symptoms, or positive lumbar puncture results...
September 23, 2016: Archives of Physical Medicine and Rehabilitation
Vikram Joshi, Barbara-Ann Adelstein, Andrea Schaffer, Preeyaporn Srasuebkul, Timothy Dobbins, Sallie-Anne Pearson
BACKGROUND: Routine data collections are used increasingly to examine outcomes of real-world cancer drug use. These datasets lack clinical details about important endpoints such as disease progression. AIM: To validate a proxy for disease progression in metastatic cancer patients using prescribing and dispensing claims. METHODS: We used data from a cohort study of patients undergoing chemotherapy who provided informed consent to the collection of cancer-treatment data from medical records and linkage to pharmaceutical claims...
September 26, 2016: Asia-Pacific Journal of Clinical Oncology
Juan Sanchis, Sergio García-Blas, Arturo Carratalá, Ernesto Valero, Anna Mollar, Gema Miñana, Vicente Ruiz, Jose Vicente Balaguer, Mercé Roqué, Xavier Bosch, Julio Núñez
Decision-making in acute chest pain remains challenging despite normal (below ninety-ninth percentile) high-sensitivity troponin (hs-cTn). Some studies suggest that undetectable hs-cTn, far below the ninety-ninth percentile, might rule out acute coronary syndrome. We investigated clinical data in comparison to undetectable hs-cTnT. The study comprised 682 patients (November 2010 to September 2011) presenting at the emergency department with chest pain and normal hs-cTnT (<14 ng/l). The main end point was major adverse cardiac events (MACE: death, myocardial infarction, readmission for unstable angina, or revascularization) at a 4-year median follow-up; secondary end point was 30-day MACE...
August 31, 2016: American Journal of Cardiology
Danqing Hu, Zhengxing Huang, Tak-Ming Chan, Wei Dong, Xudong Lu, Huilong Duan
Background: Clinical major adverse cardiovascular event (MACE) prediction of acute coronary syndrome (ACS) is important for a number of applications including physician decision support, quality of care assessment, and efficient healthcare service delivery on ACS patients. Admission records, as typical media to contain clinical information of patients at the early stage of their hospitalizations, provide significant potential to be explored for MACE prediction in a proactive manner. Methods: We propose a hybrid approach for MACE prediction by utilizing a large volume of admission records...
2016: International Journal of Environmental Research and Public Health
Ben G L Vanneste, Aswin L Hoffmann, Emile N van Lin, Lien Van De Voorde, Michael Pinkawa, Philippe Lambin
BACKGROUND AND PURPOSE: Previous studies confirmed that implantable rectum spacers (IRS) decreased acute gastro-intestinal (GI) toxicity in a significant percentage of prostate cancer patients undergoing intensity modulated radiation therapy (IMRT). We developed decision rules based on clinical risk factors (CRFs) to select those patients who are expected to benefit most from IRS implantation. MATERIALS AND METHODS: For 26 patients dose distributions with (IMRT+IRS) and without (IMRT-IRS) IRS were calculated...
September 16, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
Brit Long, Alex Koyfman
BACKGROUND: Bacteremia affects 200,000 patients per year, with the potential for significant morbidity and mortality. Blood cultures are considered the most sensitive method for detecting bacteremia and are commonly obtained in patients with fever, chills, leukocytosis, focal infections, and sepsis. OBJECTIVE: We sought to provide emergency physicians with a review of the literature concerning blood cultures in the emergency department. DISCUSSION: The utility of blood cultures has been a focus of controversy, prompting research evaluating effects on patient management...
September 14, 2016: Journal of Emergency Medicine
Pierre Tannous, Zubin Mukadam, Chetan Kammari, Harsha Banavasi, Ayman O Soubani
OBJECTIVE/BACKGROUND: The use of computed tomography pulmonary angiography (CTPA) in the emergency department (ED) for patients suspected to have pulmonary embolism (PE) has been steadily rising in the last 2decades. However, there are limited studies that specifically address the use of CTPA in the ED for cancer patients suspected to have PE. The objective of this study is to assess the rate of positive PE by CTPA in the ED in cancer patients and the variables that are associated with positive results...
September 2, 2016: Hematology/oncology and Stem Cell Therapy
Jason Shahin, Elizabeth J Allen, Krishna Patel, Hannah Muskett, Sheila E Harvey, Jonathan Edgeworth, Christopher C Kibbler, Rosemary A Barnes, Sharmistha Biswas, Neil Soni, Kathryn M Rowan, David A Harrison
BACKGROUND: Given the predominance of invasive fungal disease (IFD) amongst the non-immunocompromised adult critically ill population, the potential benefit of antifungal prophylaxis and the lack of generalisable tools to identify high risk patients, the aim of the current study was to describe the epidemiology of IFD in UK critical care units, and to develop and validate a clinical risk prediction tool to identify non-neutropenic, critically ill adult patients at high risk of IFD who would benefit from antifungal prophylaxis...
2016: BMC Infectious Diseases
Akio Kimura, Kentaro Kobayashi, Hitoshi Yamaguchi, Takeshi Takahashi, Masahiro Harada, Hideki Honda, Yoshio Mori, Keika Hirose, Noriko Tanaka
OBJECTIVE: To ensure good outcomes in the management of subarachnoid haemorrhage (SAH), accurate prediction is crucial for initial assessment of patients presenting with acute headache. We conducted this study to develop a new clinical decision rule using only objectively measurable predictors to exclude SAH, offering higher specificity than the previous Ottawa SAH Rule while maintaining comparable sensitivity. DESIGN: Multicentre prospective cohort study. SETTING: Tertiary-care emergency departments of five general hospitals in Japan from April 2011 to March 2014...
2016: BMJ Open
Sabela Carballal, Sandra Maisterra, Antonio López-Serrano, Antonio Z Gimeno-García, María Isabel Vera, José Carlos Marín-Garbriel, José Díaz-Tasende, Lucía Márquez, Marco Antonio Álvarez, Luis Hernández, Luisa De Castro, Jordi Gordillo, Ignasi Puig, Pablo Vega, Marco Bustamante-Balén, Juan Acevedo, Beatriz Peñas, María López-Cerón, Elena Ricart, Miriam Cuatrecasas, Mireya Jimeno, María Pellisé
OBJECTIVE: Outside clinical trials, the effectiveness of chromoendoscopy (CE) for long-standing IBD surveillance is controversial. We aimed to assess the effectiveness of CE for neoplasia detection and characterisation, in real-life. DESIGN: From June 2012 to 2014, patients with IBD were prospectively included in a multicentre cohort study. Each colonic segment was evaluated with white light followed by 0.4% indigo carmine CE. Specific lesions' features were recorded...
September 9, 2016: Gut
Michael Nagler, Tamam Bakchoul
A rapid diagnostic work-up is required in patients with suspected heparin-induced thrombocytopenia (HIT). However, diagnosis of HIT is challenging due to a number of practical issues and methodological limitations. Many laboratory tests and a few clinical scoring systems are available but the individual characteristics and the diagnostic accuracy of these are hard to appraise. The 4Ts score is a well evaluated clinical assessment tool with the potential to rule out HIT in many patients. Still, it requires experience and is subject to a relevant inter-observer variability...
September 8, 2016: Thrombosis and Haemostasis
Rui Chen, Daniel D Sjoberg, Yiran Huang, Liping Xie, Liqun Zhou, Dalin He, Andrew J Vickers, Yinghao Sun
PURPOSE: We determined the characteristics of Chinese men undergoing initial prostate biopsy and evaluated the relationship between prostate specific antigen levels and prostate cancer/high grade prostate cancer detection in a large Chinese multicenter cohort. MATERIALS AND METHODS: This retrospective study included 13,904 urology outpatients who had undergone biopsy for the indications of prostate specific antigen greater than 4.0 ng/ml or prostate specific antigen less than 4...
September 2, 2016: Journal of Urology
Kara E Hennelly, Marc N Baskin, Michael C Monuteuax, Joel Hudgins, Eugene Kua, Ashlee Commeree, Rotem Kimia, Edward Y Lee, Amir Kimia, Mark I Neuman
OBJECTIVE: To evaluate 2 commonly used adult-based pulmonary embolism (PE) algorithms in pediatric patients and to derive a pediatric-specific clinical decision rule to evaluate children at risk for PE, given the paucity of data to guide diagnostic imaging in children for whom PE is suspected. STUDY DESIGN: We performed a single-center retrospective study among 561 children <22 years of age undergoing either D-dimer testing or radiologic evaluation (computed tomography or ventilation-perfusion scan) in the emergency department setting for concern of PE...
August 24, 2016: Journal of Pediatrics
Paul Enright Md
Measurement of diffusing capacity of the lungs for carbon monoxide (DLCO), also known as transfer factor, is the second most important pulmonary function test (PFT), after spirometry. Previously available only in hospital-based PFT labs, DLCO testing is now available at outpatient clinics using a portable device. Compared to spirometry tests, assessments with these devices require very little effort. The patient breathes quietly, inhales the test gas, holds the breath for ten seconds, and then exhales. In adult smokers with post-bronchodilator airway obstruction, a low DLCO greatly increases the probability of the emphysema phenotype of COPD due to cigarette smoking, while a normal DLCO makes chronic asthma more likely...
September 2016: Respiratory Investigation
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