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https://www.readbyqxmd.com/read/28103808/ventricular-late-potential-in-cardiac-syndrome-x-compared-to-coronary-artery-disease
#1
Mohamed Faisal Lutfi
BACKGROUND: Although ventricular late potential (VLP) was extensively studied in risk stratification of myocardial infarction (MI) patients, comparable researches evaluating presence of VLP in MI-free coronary artery disease (CAD) and cardiac syndrome X (CSX) subjects are scarce. This study aimed to compare presence of VLP between CSX and CAD patients. METHODS: Signal average ECG (SAECG) was performed to 49 patients with a history of typical cardiac pain before undergoing diagnostic coronary angiography (DCA) in Al-Shaab cardiac center, Khartoum, Sudan...
January 19, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28098488/pulse-wave-velocity-and-myocardial-performance-index-in-premature-ovarian-insufficiency
#2
Muhammed Necati Murat Aksoy, Nermin Akdemir, Harun Kilic, Sabiye Yilmaz, Ramazan Akdemir, Huseyin Gunduz
OBJECTIVE: Epidemiological studies suggest that women with loss of ovarian function at early ages may be especially burdened by cardiovascular disease (CVD). In this study, we aimed to evaluate pulse wave velocity and myocardial performance index in patients with premature ovarian insufficiency (POI). DESIGN: We enrolled 51 female patients (mean age 38.9 ± 6.7 years) with POI and 49 healthy subjects (mean age 36.8 ± 5.2 years). All participants underwent a detailed echocardiographic examination and pulse wave velocity (PWV) measurement which is basically the velocity of pulse wave travelling from carotid to femoral artery...
January 18, 2017: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/28094172/interval-changes-in-myocardial-performance-index-predict-outcome-in-severe-sepsis
#3
Junaid Nizamuddin, Feroze Mahmood, Avery Tung, Ariel Mueller, Samuel M Brown, Shahzad Shaefi, Michael O'Connor, Daniel Talmor, Sajid Shahul
OBJECTIVES: Septic cardiomyopathy is a well-described consequence of septic shock and is associated with increased sepsis-related mortality. The myocardial performance index (MPI), a parameter derived from echocardiographic tissue Doppler measurements, allows for a more sensitive assessment of global cardiac function than do traditional metrics for cardiac function. The authors hypothesized that changes in left ventricular MPI in patients with severe sepsis would be associated with a higher 90-day mortality...
November 2, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28094132/cardiovascular-maladaptation-to-exercise-in-young-hypertensive-patients
#4
Maurizio Cusmà Piccione, Concetta Zito, Bijoy Khandheria, Antonio Madaffari, Alessandra Oteri, Gabriella Falanga, Domenica Donato, Myriam D'Angelo, Maria Ludovica Carerj, Gianluca Di Bella, Egidio Imbalzano, Pietro Pugliatti, Scipione Carerj
BACKGROUND: Impairment of the adaptive mechanisms that increase cardiac output during exercise can translate to a reduced functional capacity. We investigated cardiovascular adaptation to exertion in asymptomatic hypertensive patients, aiming to identify the early signs of cardiac and vascular dysfunction. METHODS AND RESULTS: We enrolled 54 subjects: 30 patients (45.1±11.9years, 19 males) and 24 age-matched healthy controls (44.4±9.6years, 14 males). Speckle-tracking echocardiography (STE) and echo-tracking were performed at rest and during exertion to assess myocardial deformation and arterial stiffness...
January 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28093766/psychometric-evaluation-of-the-sex-after-myocardial-infarction-knowledge-test-in-iranian-context
#5
Hossein Asgar Pour, Mohammad Reza Heidari, Reza Norouzzadeh, Fardin Rahimi, Anoshirvan Kazemnejad, Faramarz Fallahi
PURPOSE: To translate, adapt, and assess the psychometric properties of the Sex After MI Knowledge Test in Iranian context (where MI is myocardial infarction). DESIGN AND METHODS: A cross-sectional descriptive survey was performed. The sample comprised 250 patients with MI. Confirmatory factor analysis was applied to extract three indicators. FINDINGS: The Sex After MI Knowledge Test indicated good reproducibility (Cronbach's α = .76, Intraclass correlation (ICC) = 0...
January 16, 2017: Perspectives in Psychiatric Care
https://www.readbyqxmd.com/read/28090292/a-new-look-at-bronchopulmonary-dysplasia-postcapillary-pathophysiology-and-cardiac-dysfunction
#6
Arvind Sehgal, Andra Malikiwi, Eldho Paul, Kenneth Tan, Samuel Menahem
Pulmonary hypertension (PH) and right ventricular function are the focus of cardiovascular effects of bronchopulmonary dysplasia (BPD). We assessed cardiac indexes reflecting systemic afterload and pulmonary venous back pressure as pathophysiologic factors. Cardiac parameters were measured by conventional echocardiography in 20 preterm infants with severe BPD and compared with those of 10 preterm infants with no BPD and 20 healthy term infants. In infants with severe BPD, PH was noted in 5 (25%) by tricuspid regurgitation Doppler jet ≥2...
December 2016: Pulmonary Circulation
https://www.readbyqxmd.com/read/28090255/clinical-utility-of-echocardiography-for-the-diagnosis-and-prognosis-in-children-with-bronchopulmonary-dsyplasia
#7
Young Earl Choi, Hwa Jin Cho, Eun Song Song, In Seok Jeong, Namsik Yoon, Young Youn Choi, Jae Sook Ma, Young Kuk Cho
BACKGROUND: Bronchopulmonary dysplasia (BPD) may result in chronic pulmonary artery hypertension and right ventricular (RV) dysfunction. Various echocardiographic assessments of RV dysfunction have been used to determine whether echocardiographic measurements of premature infants with BPD could provide sensitive measures of RV function that correlates with BPD severity. METHODS: Twenty-eight control subjects without BPD (non BPD group), 28 patients with mild BPD, 11 patients with moderate BPD, and six patients with severe BPD underwent echocardiograms with standard measurement such as ejection fraction by M-mode, tricuspid regurgitation pressure gradient, myocardial performance index (MPI) derived from pulse Doppler, and tissue Doppler imaging (TDI) measurements...
December 2016: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28081214/cold-pressor-stress-cardiac-magnetic-resonance-myocardial-flow-reserve-is-not-useful-for-detection-of-coronary-endothelial-dysfunction-in-women-with-signs-and-symptoms-of-ischemia-and-no-obstructive-cad
#8
Sofy Landes, Sherwin Dela Cruz, Janet Wei, Ahmed AlBadri, Chrisandra Shufelt, Puja Mehta, Louise E Thomson, Marcio A Diniz, Xiao Zhang, John W Petersen, R David Anderson, Carl J Pepine, Daniel S Berman, C Noel Bairey Merz
BACKGROUND: Coronary endothelial function testing using acetylcholine is not routinely available, while non-pharmacological cold pressor testing (CPT) is considered an endothelial stressor. Noninvasive cardiac magnetic resonance imaging (CMRI) myocardial perfusion reserve index (MPRI) can detect coronary microvascular dysfunction (CMD). We evaluated if CPT stress CMRI MPRI could detect invasive coronary endothelial dysfunction. METHODS: Coronary reactivity testing was performed in 189 women with symptoms and signs of ischemic but no obstructive coronary artery disease as previously described plus CPT stress...
2017: PloS One
https://www.readbyqxmd.com/read/28070839/-1-h-and-31-p-myocardial-magnetic-resonance-spectroscopy-in-non-obstructive-hypertrophic-cardiomyopathy-patients-and-competitive-athletes
#9
Francesco Secchi, Giovanni Di Leo, Marcello Petrini, Riccardo Spairani, Marco Alì, Marco Guazzi, Francesco Sardanelli
PURPOSE: The clinical differentiation between athlete's heart and mild forms of non-obstructive hypertrophic cardiomyopathy (HCM) is crucial. We hypothesized that differences do exist between the myocardial metabolism of patients with non-obstructive HCM and competitive athletes (CAs). Our aim was to evaluate myocardial metabolism with (31)P-MRS and (1)H-MRS in HCM patients and CAs. MATERIALS AND METHODS: After Ethics Committee approval, 15 CAs and 7 HCM patients were prospectively enrolled...
January 9, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28069624/external-validation-of-the-revised-cardiac-risk-index-and-update-of-its-renal-variable-to-predict-30-day-risk-of-major-cardiac-complications-after-non-cardiac-surgery-rationale-and-plan-for-analyses-of-the-vision-study
#10
Pavel S Roshanov, Michael Walsh, P J Devereaux, S Danielle MacNeil, Ngan N Lam, Ainslie M Hildebrand, Rey R Acedillo, Marko Mrkobrada, Clara K Chow, Vincent W Lee, Lehana Thabane, Amit X Garg
INTRODUCTION: The Revised Cardiac Risk Index (RCRI) is a popular classification system to estimate patients' risk of postoperative cardiac complications based on preoperative risk factors. Renal impairment, defined as serum creatinine >2.0 mg/dL (177 µmol/L), is a component of the RCRI. The estimated glomerular filtration rate has become accepted as a more accurate indicator of renal function. We will externally validate the RCRI in a modern cohort of patients undergoing non-cardiac surgery and update its renal component...
January 9, 2017: BMJ Open
https://www.readbyqxmd.com/read/28067536/history-of-erectile-dysfunction-as-a-predictor-of-poor-physical-performance-after-an-acute-myocardial-infarction
#11
Leonida Compostella, Caterina Compostella, Li Van Stella Truong, Nicola Russo, Tiziana Setzu, Sabino Iliceto, Fabio Bellotto
Background Erectile dysfunction may predict future cardiovascular events and indicate the severity of coronary artery disease in middle-aged men. The aim of this study was to evaluate whether erectile dysfunction (expression of generalized macro- and micro-vascular pathology) could predict reduced effort tolerance in patients after an acute myocardial infarction. Patients and methods One hundred and thirty-nine male patients (60 ± 12 years old), admitted to intensive cardiac rehabilitation 13 days after a complicated acute myocardial infarction, were evaluated for history of erectile dysfunction using the International Index of Erectile Function questionnaire...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28063459/cardiac-remodeling-following-reperfused-acute-myocardial-infarction-is-linked-to-the-concomitant-evolution-of-vascular-function-as-assessed-by-cardiovascular-magnetic-resonance
#12
Olivier Huttin, Damien Mandry, Romain Eschalier, Lin Zhang, Emilien Micard, Freddy Odille, Marine Beaumont, Renaud Fay, Jacques Felblinger, Edoardo Camenzind, Faïez Zannad, Nicolas Girerd, Pierre Y Marie
BACKGROUND: Left ventricular (LV) remodeling following acute myocardial infarction (MI) is difficult to predict at an individual level although a possible interfering role of vascular function has yet to be considered to date. This study aimed to determine the extent to which this LV remodeling is influenced by the concomitant evolution of vascular function and LV loading conditions, as assessed by phase-contrast Cardiovascular Magnetic Resonance (CMR) of the ascending aorta. METHODS: CMR was performed in 121 patients, 2-4 days after reperfusion of a first ST-segment elevation myocardial infarction and 6 months thereafter...
January 4, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28062627/association-of-repeatedly-measured-high-sensitivity-assayed-troponin-i-with-cardiovascular-disease-events-in-a-general-population-from-the-morgam-biomarcare-study
#13
Maria F Hughes, Francisco Ojeda, Olli Saarela, Torben Jørgensen, Tanja Zeller, Tarja Palosaari, Mark G O'Doherty, Anders Borglykke, Kari Kuulasmaa, Stefan Blankenberg, Frank Kee
BACKGROUND: High-sensitivity troponin I (hs-cTnI) concentrations reflect myocardial stress. The role of hs-cTnI in predicting long-term changes in the risk of cardiovascular disease (CVD) in general populations is not clearly defined. METHODS: We investigated whether the change in 3 repeated measures of hs-cTnI collected 5 years apart in a prospective Danish study (3875 participants, initially aged 30-60 years, 51% female, disease free at baseline) improves 10-year prediction of incident CVD compared to using a single most recent hs-cTnI measurement...
January 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28062567/short-term-high-fat-diet-compromises-myocardial-function-a-radial-strain-rate-imaging-study
#14
Julien Ternacle, Feng Wan, Daigo Sawaki, Mathieu Surenaud, Maria Pini, Raquel Mercedes, Laura Ernande, Etienne Audureau, Jean-Luc Dubois-Rande, Serge Adnot, Sophie Hue, Gabor Czibik, Genevieve Derumeaux
AIM: Long-term high-fat diet (HFD) induces both cardiac remodelling and myocardial dysfunction in murine models. The aim was to assess the time course and mechanisms of metabolic and cardiac modifications induced by short-term HFD in wild-type (WT) mice. METHODS AND RESULTS: Thirty-three WT mice were subjected to HFD (60% fat, n = 16) and chow diet (CD, 13% fat, n = 17). Metabolic and echocardiographic data were collected at baseline and every 5 weeks for 20 weeks...
January 6, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28060356/histological-quantification-of-chronic-myocardial-infarct-in-rats
#15
Jérémy Valentin, Aurélien Frobert, Guillaume Ajalbert, Stéphane Cook, Marie-Noëlle Giraud
Myocardial infarction is defined as cardiomyocyte death due to prolonged ischemia; an inflammatory response and scar formation (fibrosis) follow the ischemic injury. Following the initial acute phase, chronic remodeling of the left ventricle (LV) modifies the structure and function of the heart. Permanent coronary ligation in small animals has been widely used as a reference model for a chronic model of MI. Thinning of the infarcted wall progressively develops to transmural fibrosis. Histological assessment of infarct size is commonly performed; nevertheless, a standardization of the methods for quantification is missing...
December 11, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28058478/cardiac-magnetic-resonance-feature-tracking-biventricular-two-dimensional-and-three-dimensional-strains-to-evaluate-ventricular-function-in-children-after-repaired-tetralogy-of-fallot-as-compared-with-healthy-children
#16
Fernando M Berganza, Cesar Gonzalez de Alba, Nazire Özcelik, Dilachew Adebo
Cardiac magnetic resonance imaging is an important tool to evaluate cardiac anatomy and ventricular size and function after repaired tetralogy of Fallot. Magnetic resonance tissue tagging is the gold standard for evaluation of myocardial strain. However, myocardial tagging strain requires tagged images to be obtained prospectively, during the scan and with limited temporal resolution. Cardiac magnetic resonance feature tracking is a new tool that allows the retrospective analysis of cine images. There is limited experience with cardiac magnetic resonance feature tracking strain analysis in children...
January 5, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28057097/-assessment-right-atrial-function-in-patients-with-systemic-lupus-erythematosus-by-speckle-tracking-and-three-dimensional-echocardiography
#17
X Y Ge, L Shao, Z L Zheng
Objective: To evaluate right atrial function in systemic lupus erythematosus (SLE) with normal pulmonary pressure by using two dimensional-speckle tracking imaging (2D-STI) and real-time three-dimensional echocardiography(RT-3DE). Methods: A totoal of 40 patients with SLE and 40 control subjects were collected between December 2011 and May 2014 from Ningbo Medical Treatment Center Lihuili Hospital. Right atrial global longitudinal strain (RAGLS) and all kinds of right atrium volume index (RAVI) were detected...
December 20, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28056808/comparison-of-global-myocardial-strain-assessed-by-cardiovascular-magnetic-resonance-tagging-and-feature-tracking-to-infarct-size-at-predicting-remodelling-following-stemi
#18
Abhishek M Shetye, Sheraz A Nazir, Naveed A Razvi, Nathan Price, Jamal N Khan, Florence Y Lai, Iain B Squire, Gerald P McCann, Jayanth R Arnold
BACKGROUND: To determine if global strain parameters measured by cardiovascular magnetic resonance (CMR) acutely following ST-segment Elevation Myocardial Infarction (STEMI) predict adverse left ventricular (LV) remodelling independent of infarct size (IS). METHODS: Sixty-five patients with acute STEMI (mean age 60 ± 11 years) underwent CMR at 1-3 days post-reperfusion (baseline) and at 4 months. Global peak systolic circumferential strain (GCS), measured by tagging and Feature Tracking (FT), and global peak systolic longitudinal strain (GLS), measured by FT, were calculated at baseline, along with IS...
January 5, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28054752/opposite-modulatory-effects-of-selective-and-non-selective-cyclooxygenase-inhibition-on-cardiovascular-and-autonomic-consequences-of-cyclosporine-in-female-rats
#19
Karim S Ibrahim, Ahmed F El-Yazbi, Hanan M El-Gowelli, Mahmoud M El-Mas
Non-steroidal anti-inflammatory drugs (NSAIDs) and the immunosuppressant drug cyclosporine (CSA) are concurrently administered in arthritis. Here, we investigated whether diclofenac (non-selective inhibitor of cyclooxygenase-1 and 2, COX-1/COX-2), celecoxib (selective COX-2 inhibitor) or SC560 (selective COX-1 inhibitor) interact variably with hemodynamic effects of CSA in conscious female rats. Changes caused by CSA (10 mg/kg i.v.) in blood pressure (BP), heart rate (HR), HR variability (HRV) and myocardial contractility were assessed in absence and presence of individual NSAIDs (10 mg/kg each)...
January 5, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28047621/su-f-i-31-reproducibility-of-an-automatic-exposure-control-technique-in-the-low-dose-ct-scan-of-cardiac-pet-ct-exams
#20
M Park, D Rosica, V Agarwal, M Di Carli, S Dorbala
PURPOSE: Two separate low-dose CT scans are usually performed for attenuation correction of rest and stress N-13 ammonia PET/CT myocardial perfusion imaging (PET/CT). We utilize an automatic exposure control (AEC) technique to reduce CT radiation dose while maintaining perfusion image quality. Our goal is to assess the reproducibility of displayed CT dose index (CTDI) on same-day repeat CT scans (CT1 and CT2). METHODS: Retrospectively, we reviewed CT images of PET/CT studies performed on the same day...
June 2016: Medical Physics
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