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Echo cardiography

Yohei Shibata, Hideki Ishii, Susumu Suzuki, Akihito Tanaka, Yosuke Tatami, Shingo Harata, Tomoyuki Ota, Yusaku Shimbo, Yohei Takayama, Ayako Kunimura, Kenshi Hirayama, Kazuhiro Harada, Naohiro Osugi, Toyoaki Murohara
AIMS: Previous studies have shown that aortic valve calcification (AVC) was associated with cardiovascular events and mortality. On the other hand, periprocedural myocardial injury (PMI) in percutaneous coronary intervention (PCI) is a well-known predictor of subsequent mortality and poor clinical outcomes. The purpose of the study was to assess the hypothesis that the presence of AVC could predict PMI in PCI. METHODS: This study included 370 patients treated with PCI for stable angina pectoris...
October 13, 2016: Journal of Atherosclerosis and Thrombosis
P V Serebryakov, O I Nenenko, I N Fedina, A R Rakhimzyanov
The article covers results of cardio-respiratory system evaluation in workers exposed to dust, on basis of adaptation potential evaluation via calculation of functional changes index and 6 minutes' walk test with continuous assessment of blood oxygenation and heart rate. Adaptation disorders are supported by results of external respiration assessment and echo-cardiography.
2016: Meditsina Truda i Promyshlennaia Ekologiia
Tariq Alhogbani
The novel Middle east respiratory syndrome coronavirus (MeRS-CoV) has been identified as a cause of pneumonia; however, it has not been reported as a cause of acute myocarditis. A 60-year-old man presented with pneumonia and congestive heart failure. On the first day of admission, he was found to have an elevated troponin-l level and severe global left ventricular systolic dysfunction on echo-cardiography. The serum creatinine level was found mildly elevated. Chest radiography revealed in the lower lung fields accentuated bronchovascular lung markings and multiple small patchy opacities...
January 2016: Annals of Saudi Medicine
Silvana de Araújo Silva, Eliane Dias Gontijo, João Carlos Pinto Dias, Camila Gomes de Souza Andrade, Carlos Faria Santos Amaral
The identification of predictors for the progression of chronic Chagas cardiomyopathy (CCC) is essential to ensure adequate patient management. This study looked into a non-concurrent cohort of 165 CCC patients between 1985 and 2010 for independent predictors for CCC progression. The outcomes were worsening of the CCC scores and the onset of left ventricular dysfunction assessed by means of echo-Doppler cardiography. Patients were analyzed for social, demographic, epidemiologic, clinical and workup-related variables...
March 2015: Revista do Instituto de Medicina Tropical de São Paulo
Tobias Bomholt, Christian Lange
A 53-year-old male was admitted due to an asymptomatic third degree atrioventricular (AV) block of proximal type (QRS duration below 0,12 sec.). With telemetry a normal heart rate was observed and a stress test showed a maximum heart rate of 101% of the expected. Blood samples and stress echo-cardiography showed normal values. Permanent pacemaker (PM) placement was rejected and the patient was followed in the outpatient clinic. PM implantation carries a risk of complications but without it the condition can progress...
January 26, 2015: Ugeskrift for Laeger
Matthew Cieslak, William S Ryan, Alan Macy, Robert M Kelsey, Jessica E Cornick, Marlo Verket, Jim Blascovich, Scott Grafton
While simultaneous acquisition of electrocardiography (ECG) data during MRI is a widely used clinical technique, the effects of the MRI environment on impedance cardiography (ICG) data have not been characterized. We collected echo planar MRI scans while simultaneously recording ECG and thoracic impedance using carbon fiber electrodes and customized amplifiers. Here, we show that the key changes in impedance (dZ/dt) and features of the ECG waveforms are not obstructed during MRI. We present a method for ensemble averaging ICG/ECG signals collected during MRI and show that it performs comparably with signals collected outside the MRI environment...
April 2015: Psychophysiology
Kh A Kurdanov, I A Beslaneev, L M Batyrbekova, M Kh Kurdanova
AIM: To study characteristics of hemodynamics, spectral analysis of heart rate variability (HRV) and their association with the total blood concentration of stable metabolites of nitric oxide (nitrites and nitrates) in patients with hypertension living in highlands. PATIENTS AND METHODS: 110 natives of the highlands of Elbrus region were examined. All of them were divided into 2 groups--with 2d stage of hypertension (n = 50) and conditionally healthy (n = 60. All the participants were performed routine examination under the conditions of hospitals and out-patient clinics...
2014: Vestnik Rossiĭskoĭ Akademii Meditsinskikh Nauk
Sumbul Javed Mirza, Ghazi Ahmad Radaideh
OBJECTIVE: To explore the pattern of left ventricular hypertrophy caused by hypertension and to compare it with idiopathic hypertrophiccardiomyopathy. METHODS: The retrospective study was conducted at the echocardiography lab of Rashid Hospital, Dubai, from January 2009 to January 2010. Cases of 11 patients with significant left ventricular hypertrophy (septum > 15 mm) due to underlying hypertension were analysed and compared with 11 cases of idiopathic hypertrophic cardiography (septum >15mm) to assess the two groups with similar baseline echocardiographic features...
January 2013: JPMA. the Journal of the Pakistan Medical Association
Barry A Borlaug, Margaret M Redfield, Vojtech Melenovsky, Garvan C Kane, Barry L Karon, Steven J Jacobsen, Richard J Rodeheffer
BACKGROUND: Cross-sectional studies suggest that left ventricular (LV) and arterial elastance (stiffness) increase with age, but data examining longitudinal changes within human subjects are lacking. In addition, it remains unknown whether age-related LV stiffening is merely a reaction to arterial stiffening or caused by other processes. METHODS AND RESULTS: Comprehensive echo-Doppler cardiography was performed in 1402 subjects participating in a randomly selected community-based study at 2 examinations separated by 4 years...
September 1, 2013: Circulation. Heart Failure
J Burlingame, P Ohana, M Aaronoff, T Seto
OBJECTIVE: The objective of this study was to report thoracic impedance cardiography (ICG) measurements and compare them with echocardiography (echo) measurements throughout pregnancy and in varied maternal positions. METHOD: A prospective cohort study involving 28 healthy parturients was performed using ICG and echo at three time points and in two maternal positions. Pearson's correlations, Bland-Altman plots and paired t-tests were used for statistical analysis...
September 2013: Journal of Perinatology: Official Journal of the California Perinatal Association
Jung Hee Seo, Vijay Vedula, Theodore Abraham, Rajat Mittal
A multiphysics simulation approach is developed for predicting cardiac flows as well as for conducting virtual echocardiography (ECHO) and phonocardiography (PC) of those flows. Intraventricular blood flow in pathological heart conditions is simulated by solving the three-dimensional incompressible Navier-Stokes equations with an immersed boundary method, and using this computational hemodynamic data, echocardiographic and phonocardiographic signals are synthesized by separate simulations that model the physics of ultrasound wave scattering and flow-induced sound, respectively...
August 2013: International Journal for Numerical Methods in Biomedical Engineering
Silvia Beatriz Cavasin de Souza, Juraci Aparecida Rocha, Marco Antonio Romeu Cuoco, Grazia Maria Guerra, Julio Cesar Ferreira-Filho, Suellen Borile, Eduardo Moacyr Krieger, Luiz Aparecido Bortolotto, Fernanda Marciano Consolim-Colombo
BACKGROUND: The presence of asymptomatic left ventricular diastolic dysfunction (LVDD) in hypertensive patients can be associated with the development of cardiac events. The increase in sympathetic activity may be 1 of the mechanisms that predisposes to this outcome. In this study, we analyzed 2 hypotheses: (i) whether sympathetic activity is higher in the presence of LVDD, independent of blood pressure control and (ii) whether different classes of LVDD have a different effect on sympathetic activity...
July 2013: American Journal of Hypertension
D Weberová, P Weber, H Kubesová, H Meluzínová, V Polcarová, P Ambrosová, K Bieláková
UNLABELLED: Pulmonary embolism (PE) is after myocardial infarction and cerebrovascular events the third most frequent cardiovascular cause of death. Simultaneously it belongs to at least often correctly diagnosed cardiovascular diseases. THE AIM OF THE STUDY: The retrospective analysis of the database of inpatients with the target assess the clinical course of PE according to prevalence, mortality, average duration of stay, risk factors, used diagnostic methods and kinds of therapy...
2012: Advances in Gerontology, Uspekhi Gerontologii
Jarosław Szponar, Małgorzata Kołodziej, Magdalena Majewska, Kamil Zaleski, Hanna Lewandowska-Stanek
Carbon monoxide still remains one of the most common causes of fatal poisonings. Mechanisms of carbon monoxide toxic effects are complex and lead to hypoxia of body tissues. The most sensitive to tissue hypoxia are: the central nervous system and the cardiovascular system.The most characteristic cardiac symptoms of carbon monoxide poisoning are: stenocardial symptoms, hypotonia, myocardial dysfunction and arrhythmia (atrial fibrillation, tachycardia, bradycardia). Carbon monoxide connects with high affinity to metallo-proteins mainly to hemoglobin impairing oxygen transport in the body and to myoglobin, interfering with its function as oxygen reservoir among others in myocardium...
2012: Przegla̧d Lekarski
Qin Wu, Lei Gao, Yifeng Yang, Tianli Zhao, Xin Wang, Ni Yin, Xinhua Xu
OBJECTIVE: To elucidate the preoperative, intraoperative, and postoperative utility of echocardiographic technology in occlusion of ventricular septal defect (VSD) via small chest incision. METHODS: We performed occlusion of VSD via small chest incision in 446 children. Before surgery, a multiple-section transthoracic echo-cardiogram (TTE) was employed to evaluate various parameters (including the size, position, and type) of the VSD region as well as the condition of neighboring tissues...
July 2012: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
A T Oyedeji, M O Balogun, A A Akintomide, R A Adebayo, O E Ajayi, S Ogunyemi, E A Ajayi
BACKGROUND: Heart failure is a major public health concern. Prediction models in heart failure have employed echo-cardiography and other advanced laboratory parameters in predicting the risk of mortality. However, most of the patients in the resource poor economies still do not have easy access to these advanced technology. OBJECTIVE: To determine the clinical and echocardiographic correlates of patients with chronic heart failure (CHF) in the presence or mild renal disease (MRD)...
November 2011: West African Journal of Medicine
Shang Wang, Yat-Yin Lam, Ming Liu, Fang Fang, Jing Wang, Qing Shang, Jing-Ping Sun, John E Sanderson, Cheuk-Man Yu
BACKGROUND: The prevalence of heart failure (HF) is increasing as the population ages, but its rapid diagnosis and phenotype identification remain challenging. We sought to determine whether acoustic cardiography can accurately identify HF and its phenotypes. METHODS: Three cohorts of patients were studied [94 with hypertension, 109 with HF and normal ejection fraction (HFNEF, EF ≥ 50%) and 89 with HF and reduced ejection fraction (HFREF, EF<50%)]. All participants received acoustic cardiography and echocardiography examinations...
August 10, 2013: International Journal of Cardiology
Dominik Wiedemann, Florian Boesch, Stefan Schneeberger, Alfred Kocher, Günther Laufer, Severin Semsroth
OBJECTIVES: Assessment of graft function in experimental cardiac transplant has been underused by insufficient methods (echo-cardiography, magnetic resonance imaging). The isolated reperfused working-heart model is an excellent tool for hemodynamic evaluation of rodent hearts. So far, it has never been used in a cardiac transplant setting. Our study tries to combine the in vivo technique of a rat heart transplant model with the ex vivo method of an isolated working heart. MATERIALS AND METHODS: Heterotopic heart transplants have been performed in rats with a nonsuture cuff technique...
April 2012: Experimental and Clinical Transplantation
A C Henderson, R C Sá, I A Barash, S Holverda, R B Buxton, S R Hopkins, G K Prisk
Rapid intravenous saline infusion, a model meant to replicate the initial changes leading to pulmonary interstitial edema, increases pulmonary arterial pressure in humans. We hypothesized that this would alter lung perfusion distribution. Six healthy subjects (29 ± 6 years) underwent magnetic resonance imaging to quantify perfusion using arterial spin labeling. Regional proton density was measured using a fast-gradient echo sequence, allowing blood delivered to the slice to be normalized for density and quantified in mL/min/g...
March 15, 2012: Respiratory Physiology & Neurobiology
Bhagwant Rai Mittal, Sampath Santhosh, Raghava Kashyap, Anish Bhattacharya, Baljinder Singh, Ajay Bahl
This study was performed to find out the left ventricular ejection fraction (LVEF) and right ventricular ejection fraction (RVEF) in patients with dilated cardiomyopathy (DCM) by using commercially available automated gated blood pool scintigraphy (GBPS) processing software and to correlate it with first pass radionuclide ventriculography (FPRNV) and planar multigated acquisition (MUGA). However, till date, no literature exists studying the application of GBPS and planar radionuclide ventriculography techniques in the setting of patients with DCM as a single cohort...
September 2011: Hellenic Journal of Nuclear Medicine
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