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https://www.readbyqxmd.com/read/28227337/prediction-of-the-outcome-in-cardiac-arrest-patients-undergoing-hypothermia-using-eeg-wavelet-entropy
#1
Hana Moshirvaziri, Nima Ramezan-Arab, Shadnaz Asgari, Hana Moshirvaziri, Nima Ramezan-Arab, Shadnaz Asgari, Hana Moshirvaziri, Nima Ramezan-Arab, Shadnaz Asgari
Cardiac arrest (CA) is the leading cause of death in the United States. Induction of hypothermia has been found to improve the functional recovery of CA patients after resuscitation. However, there is no clear guideline for the clinicians yet to determine the prognosis of the CA when patients are treated with hypothermia. The present work aimed at the development of a prognostic marker for the CA patients undergoing hypothermia. A quantitative measure of the complexity of Electroencephalogram (EEG) signals, called wavelet sub-band entropy, was employed to predict the patients' outcomes...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227135/quantification-of-peripheral-and-central-blood-pressure-variability-using-a-time-frequency-method
#2
Z Kouchaki, M Butlin, A Qasem, A P Avolio, Z Kouchaki, M Butlin, A Qasem, A P Avolio, Z Kouchaki, A P Avolio, M Butlin, A Qasem
Systolic blood pressure variability (BPV) is associated with cardiovascular events. As the beat-to-beat variation of blood pressure is due to interaction of several cardiovascular control systems operating with different response times, assessment of BPV by spectral analysis using the continuous measurement of arterial pressure in the finger is used to differentiate the contribution of these systems in regulating blood pressure. However, as baroreceptors are centrally located, this study considered applying a continuous aortic pressure signal estimated noninvasively from finger pressure for assessment of systolic BPV by a time-frequency method using Short Time Fourier Transform (STFT)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226872/multimodel-quantitative-analysis-of-somatosensory-evoked-potentials-after-cardiac-arrest-with-graded-hypothermia
#3
Leanne Moon Young, Rishabh Choudhary, Xiaofeng Jia, Leanne Moon Young, Rishabh Choudhary, Xiaofeng Jia, Xiaofeng Jia, Leanne Moon Young, Rishabh Choudhary
Cardiac arrest (CA) is one of the most prominent causes of morbidity and mortality in adults. Therapeutic hypothermia (TH) is a recommended treatment to improve survival and functional outcome following CA, however, it is unclear what degree of TH is most beneficial. It has been suggested that TH of 33°C provides no survival or outcome benefits over TH of 36°C. Additionally, there is a lack of verified objective quantitative prognostic tools for comatose CA patients under TH. In this study, we calculated three quantitative markers of somatosensory evoked potentials (SSEP) to examine their potential to track recovery in the early period following CA under graded TH...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226871/identifying-depressed-patients-with-and-without-suicidal-ideation-by-finger-photo-plethysmography
#4
A H Khandoker, V Luthra, Y Abouallaban, S Saha, K I Ahmed, R Mostafa, N Chowdhury, H F Jelinek, A H Khandoker, V Luthra, Y Abouallaban, S Saha, K I Ahmed, R Mostafa, N Chowdhury, H F Jelinek, A H Khandoker, R Mostafa, H F Jelinek, N Chowdhury, Y Abouallaban, S Saha, K I Ahmed, V Luthra
Major Depressive Disorder (MDD) is a serious mental disorder that if untreated not only affects physical health but also has a high risk of suicide. While the neurophysiological phenomena that contribute to the formation of Suicidal Ideation (SI) are still ill-defined, clear links between MDD and cardiovascular disease have been reported. The aim of this study is to extract suitable features from arterial pulse signals with a view to predicting SI within MDD and control groups. Sixteen unmedicated MDD patients with a history of SI (MDDSI+), sixteen without SI (MDDSI-) and twenty-nine healthy subjects (CONT) were recruited at a psychiatric clinic in the UAE...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226689/patient-movement-compensation-for-3d-echocardiography-fusion
#5
Abhilash R Hareendranathan, Michelle Hanbidge, Allen He, Michelle Noga, Pierre Boulanger, Harald Becher, Kumaradevan Punithakumar, Abhilash R Hareendranathan, Michelle Hanbidge, Allen He, Michelle Noga, Pierre Boulanger, Harald Becher, Kumaradevan Punithakumar, Allen He, Pierre Boulanger, Harald Becher, Michelle Noga, Kumaradevan Punithakumar, Michelle Hanbidge, Abhilash R Hareendranathan
Limited field of view (FOV) is a major problem for 3D real-time echocardiography (3DRTE), which results in an incomplete representation of cardiac anatomy. Various image registration techniques have been proposed to improve the field of view in 3DRTE by fusing multiple image volumes. However, these techniques require significant overlap between the individual volumes and rely on high image resolution and high signal-to-noise ratio. Changes in the heart position due to patient movement during image acquisition can also reduce the quality of image fusion...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226648/a-multivariate-time-frequency-approach-for-tracking-qt-variability-changes-unrelated-to-heart-rate-variability
#6
Michele Orini, Peter Taggart, Pier D Lambiase, Michele Orini, Peter Taggart, Pier D Lambiase, Peter Taggart, Michele Orini, Pier D Lambiase
The beat-to-beat variability of the QT interval (QTV) is a marker of ventricular repolarization (VR) dynamics and it has been suggested as an index of sympathetic ventricular outflow and cardiac instability. However, QTV is also affected by RR (or heart rate) variability (RRV), and QTV due to RRV may reduce QTV specificity as a VR marker. Therefore, it would be desirable to separate QTV due to VR dynamics from QTV due to RRV. To do that, previous work has mainly focused on heart rate corrections or time-invariant autoregressive models...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226460/pro-arrhythmic-effect-of-heart-rate-variability-during-periodic-pacing
#7
Kanchan Kulkarni, Steven W Lee, Elena G Tolkacheva, Kanchan Kulkarni, Steven W Lee, Elena G Tolkacheva, Elena G Tolkacheva, Steven W Lee, Kanchan Kulkarni
Clinically, healthy hearts have been associated with a high ventricular heart rate variability (HRV) while diseased hearts have been known to exhibit low ventricular HRV. Hence, low HRV is suggested to be a marker of cardiac ventricular arrhythmias. Over the past few years, there has been considerable amount of interest in incorporating HRV in pacing to emulate healthy heart conditions and re-stabilize the electrical activity in diseased hearts. Recently, we used single cell numerical simulations to demonstrate that HRV incorporated into periodic pacing promotes alternans formation and thus, can be pro-arrhythmic...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225837/storage-time-of-intraoperative-transfused-allogeneic-red-blood-cells-is-not-associated-with-new-onset-postoperative-atrial-fibrillation-in-cardiac-surgery
#8
Jiwei Gu, Regitze Kuhr Skals, Christian Torp-Pedersen, Søren Lundbye-Christensen, Carl-Johan Jakobsen, John Bæch, Mikkel Steen Petersen, Jan Jesper Andreasen
BACKGROUND: Allogeneic red blood cell (RBC) transfusion has been associated with new-onset postoperative atrial fibrillation (POAF) following cardiac surgery. Prolonged storage time of RBC may increase the risk. The primary aim of the study was to evaluate whether the storage time of RBC is associated with development of POAF. MATERIALS AND METHODS: Pre-, per- and postoperative data were retrieved from the Western Denmark Heart Registry and local blood banks regarding patients who underwent coronary artery bypass surgery, valve surgery or combined procedures in Aalborg or Aarhus University Hospital during 2010-2014...
2017: PloS One
https://www.readbyqxmd.com/read/28225801/perioperative-hemoglobin-area-under-the-curve-is-an-independent-predictor-of-renal-failure-after-cardiac-surgery-results-from-a-spanish-multicenter-retrospective-cohort-study
#9
Paula Duque-Sosa, Diego Martínez-Urbistondo, Gemma Echarri, Raquel Callejas, María Josefa Iribarren, Gregorio Rábago, Pablo Monedero
Perioperative anemia is an important risk factor for cardiac surgery-associated acute kidney injury (CSA-AKI). Nonetheless, the severity of the anemia and the time in the perioperative period in which the hemoglobin level should be considered as a risk factor is conflicting. The present study introduces the concept of perioperative hemoglobin area under the curve (pHb-AUC) as a surrogate marker of the evolution of perioperative hemoglobin concentration. Through a retrospective analysis of prospectively collected data, we assessed this new variable as a risk factor for the development of acute kidney injury after cardiac surgery in 966 adult patients who underwent cardiac surgery with cardiopulmonary bypass, at twenty-three academic hospitals in Spain...
2017: PloS One
https://www.readbyqxmd.com/read/28225726/computer-assisted-retinal-vessel-tortuosity-evaluation-in-novel-mutation-fabry-disease-towards-new-prognostic-markers
#10
Irene San Román, María-Elena Rodríguez, Orsola Caporossi, Claudia Zoppetti, Andrea Sodi, Alessandro Mecocci, David López, Beatriz Rodríguez, Juan-Ramón Gimeno
PURPOSE: Fabry disease is a rare lysosomal storage disorder with systemic involvement. The authors report on a large Fabry family with GLA p.M187R mutation and exhaustive ophthalmologic assessment. METHODS: Comprehensive systemic evaluation and genetic diagnosis were performed. Ophthalmologic evaluation included intraocular pressure/visual acuity measurement, refractometry, slit lamp examination, retinography, and optical coherence tomography. Three parameters quantified retinal vessel tortuosity: sum of angle metrics, product of angle distance, and triangular index...
March 2017: Retina
https://www.readbyqxmd.com/read/28222921/relationships-between-left-ventricular-structure-and-function-according-to-cardiac-mri-and-cardiac-biomarkers-in-end-stage-renal-disease
#11
Bryan A Ross, Ron Wald, Marc B Goldstein, Darren A Yuen, Jonathon Leipsic, Mercedeh Kiaii, Andrea Rathe, Djeven P Deva, Anish Kirpalani, Olugbenga O Bello, John J Graham, Howard Leong-Poi, Kim A Connelly, Andrew T Yan
BACKGROUND: We sought to assess the relationships between left ventricular (LV) remodelling and the mechanical and uremic stressors in hemodialysis patients. METHODS: In this prospective 2-centre cohort study, 67 prevalent hemodialysis patients were followed for 1 year. Data on routine bloodwork and predialysis blood pressure (BP) measurements were collected over a 12-week period. LV end-diastolic volume (LVEDV) and LV mass (LVM) were measured using cardiac magnetic resonance imaging and indexed...
December 3, 2016: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28220621/a-low-prevalence-of-non-alcoholic-fatty-liver-disease-in-patients-with-type-1-diabetes-is-associated-to-decreased-subclinical-cardiovascular-disease
#12
Enric Serra-Planas, Eva Aguilera, Laura Castro, Raúl Rodríguez, Isabel Salinas, Anna Lucas, Clara Joaquín, Rocio Puig, Dídac Mauricio, Manel Puig-Domingo
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) has been proposed as an independent cardiovascular risk factor. This study evaluated the prevalence of NAFLD in a cohort of Type 1 Diabetic (T1D) patients and its potential relationship with subclinical cardiovascular disease (CVD). METHODS: Cross-sectional study in which 100 T1D patients (39.4 ± 7.8 years, 54% male, all Caucasian, disease duration 21.7 ± 8.6 years, HbA1c 8.1 ± 1.0 % (64.2 ± 7...
February 20, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/28220351/two-dimensional-speckle-tracking-echocardiography-demonstrates-no-effect-of-active-acromegaly-on-left-ventricular-strain
#13
I C M Volschan, L Kasuki, C M S Silva, M L Alcantara, R M Saraiva, S S Xavier, M R Gadelha
BACKGROUND: Speckle tracking echocardiography (STE) allows for the study of myocardial strain (ε), a marker of early and subclinical ventricular systolic dysfunction. Cardiac disease may be present in patients with acromegaly; however, STE has never been used to evaluate these patients. OBJECTIVE: To evaluate left ventricular (LV) global longitudinal strain in patients with active acromegaly with normal LV systolic function. DESIGN: Cross-sectional clinical study...
February 20, 2017: Pituitary
https://www.readbyqxmd.com/read/28220227/prediction-of-pediatric-sepsis-mortality-within-1%C3%A2-h-of-intensive-care-admission
#14
Luregn J Schlapbach, Graeme MacLaren, Marino Festa, Janet Alexander, Simon Erickson, John Beca, Anthony Slater, Andreas Schibler, David Pilcher, Johnny Millar, Lahn Straney
PURPOSE: The definitions of sepsis and septic shock have recently been revised in adults, but contemporary data are needed to inform similar approaches in children. METHODS: Multicenter cohort study including children <16 years admitted with sepsis or septic shock to ICUs in Australia and New Zealand in the period 2012-2015. We assessed septic shock criteria at ICU admission to define sepsis severity, using 30-day mortality as outcome. Through multivariable logistic regression, a pediatric sepsis score was derived using variables available within 60 min of ICU admission...
February 20, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28219442/eplerenone-for-early-cardiomyopathy-in-duchenne-muscular-dystrophy-results-of-a-two-year-open-label-extension-trial
#15
Subha V Raman, Kan N Hor, Wojciech Mazur, Xin He, John T Kissel, Suzanne Smart, Beth McCarthy, Sharon L Roble, Linda H Cripe
BACKGROUND: Cardiomyopathy is a leading cause of morbidity and mortality in boys with Duchenne muscular dystrophy (DMD). We recently showed in a 12-month double-blind randomized controlled trial that adding eplerenone to background medical therapy was cardioprotective in this population. The objective of this study was to evaluate the safety and efficacy of longer-term eplerenone therapy in boys with DMD. RESULTS: Eleven subjects (phase 1 baseline median [range] age: 13 [7 - 25] years) from the original 12-month trial at a single participating center were enrolled...
February 20, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28217313/ghrelin-and-hormonal-markers-under-exercise-training-in-patients-with-heart-failure-with-preserved-ejection-fraction-results-from-the-ex-dhf-pilot-study
#16
Tobias Daniel Trippel, Volker Holzendorf, Martin Halle, Götz Gelbrich, Kathleen Nolte, Andre Duvinage, Silja Schwarz, Tinka Rutscher, Julian Wiora, Rolf Wachter, Christoph Herrmann-Lingen, Hans-Dirk Duengen, Gerd Hasenfuß, Burkert Pieske, Frank Edelmann
BACKGROUND: Over 50% of patients with symptomatic heart failure (HF) experience HF with preserved ejection fraction (HFpEF). Exercise training (ET) is effective in improving cardiorespiratory fitness and dimensions of quality of life in patients with HFpEF. A systemic pro-inflammatory state induced by comorbidities as the cause of myocardial structural and functional alterations has been proposed in HFpEF. ET modifies myocardial structure and has been related to inflammatory state. We investigated Ghrelin, related adipokines, markers of inflammation, and neuro-hormonal activation in patients undergoing a structured ET vs...
February 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/28216824/cardiac-troponin-i-a-potent-biomarker-for-myocardial-damage-assessment-following-high-voltage-electric-burn
#17
Arindam Bose, Chandra B Chhabra, Shobha Chamania, Nanda Hemvani, Dhananjay S Chitnis
Myocardial infarction (MI) following high voltage electric burn is very rare, and its pathogenesis remains controversial. Electrical burns represent only 4% of all burns. Hence, clinical managements have taken a slow pace in developing. The recent guidelines laid down by the cardiology societies include cardiac troponin I (cTnI) as the gold standard marker for the assessment of myocardial damage assessment. Two patients were admitted to our hospital at the different time with the same kind of high voltage electric burn...
September 2016: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/28216620/aspirin-alleviates-cardiac-fibrosis-in-mice-by-inhibiting-autophagy
#18
Ping-Ping Liu, Hong-Hong Liu, Shu-Hong Sun, Xing-Xing Shi, Wan-Cheng Yang, Guo-Hai Su, Jing Zhao
Aspirin (ASA) is a cardioprotective drug with anti-cardiac fibrosis action in vivo. This study was aimed to clarify the anti-cardiac fibrosis action of ASA and the underlying mechanisms. Two heart injury models (injection of isoproterenol and ligation of the left anterior descending branch) were used in mice to induce cardiac fibrosis. The animals were treated with ASA (10 mg·kg(-1)·d(-1), ig) for 21 and 14 d, respectively. ASA administration significantly improved cardiac function, and ameliorated heart damage and fibrosis in the mice...
February 20, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28216453/quantification-of-myocardial-oxygenation-in-heart-failure-using-blood-oxygen-level-dependent-t2-magnetic-resonance-imaging-comparison-with-cardiopulmonary-exercise-test
#19
Michinobu Nagao, Yuzo Yamasaki, Satoshi Kawanami, Takeshi Kamitani, Koji Sagiyama, Taiki Higo, Tomomi Ide, Atsushi Takemura, Umiko Ishizaki, Kenji Fukushima, Yuji Watanabe, Hiroshi Honda
PURPOSE: Quantification of myocardial oxygenation (MO) in heart failure (HF) has been less than satisfactory. This has necessitated the use of invasive techniques to measure MO directly or to determine the oxygen demand during exercise using the cardiopulmonary exercise (CPX) test. We propose a new quantification method for MO using blood-oxygen-level-dependent (BOLD) myocardial T2* magnetic resonance imaging (M-T2* MRI), and investigate its correlation with CPX results. METHODS: Thirty patients with refractory HF who underwent cardiac MRI and CPX test for heart transplantation, and 24 healthy, age-matched volunteers as controls were enrolled...
February 16, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28216140/expression-profiles-of-cancer-stem-cell-markers-cd133-cd44-musashi-1-and-epcam-in-the-cardiac-mucosa-barrett-s-esophagus-early-esophageal-adenocarcinoma-advanced-esophageal-adenocarcinoma-sequence
#20
Anna Mokrowiecka, Lothar Veits, Christina Falkeis, Jacek Musial, Radzislaw Kordek, Mariusz Lochowski, Jozef Kozak, Agnieszka Wierzchniewska-Lawska, Michael Vieth, Ewa Malecka-Panas
INTRODUCTION: Barrett's esophagus (BE), which develops as a result of gastroesophageal reflux disease, is a preneoplastic condition for esophageal adenocarcinoma (EAC). A new hypothesis suggests that cancer is a disease of stem cells, however, their expression and pathways in BE - EAC sequence are not fully elucidated yet. AIMS: We used a panel of putative cancer stem cells markers to identify stem cells in consecutive steps of BE-related cancer progression. METHODS: Immunohistochemistry was performed on formalin-fixed, paraffin-embedded blocks from 58 patients with normal cardiac mucosa (n=5), BE (n=14), early EAC (pT1) from mucosal resection (n=17) and advanced EAC (pT1-T4) from postoperative specimens (n=22)...
December 30, 2016: Pathology, Research and Practice
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