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Echocardiography.

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https://www.readbyqxmd.com/read/28813763/simultaneous-onset-of-deep-vein-thrombosis-pulmonary-embolism-cerebral-infarction-and-myocardial-infarction-in-a-patient-with-patent-foramen-ovale
#1
Jimmy Yee, Vishesh Kumar, Alex Pham, Kashif Shaikh, Muhammad Omar, Adam Stys, Marian Petrasko
Paradoxical embolism is a known complication with intra-cardiac shunts. It should be considered in the differential as the pathophysiologic mechanism of simultaneous thromboembolism in the venous and systemic vasculature. We present a case of simultaneous deep venous thrombosis, pulmonary embolism and myocardial infarction in the presence of a confirmed patent foramen ovale on echocardiography. Thrombolytic therapy was administered. Subsequent concerns of intracranial hemorrhage on imaging of the brain complicated the management and added to the challenge of co-managing the clot burden in our patient...
June 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28812383/evaluation-of-relationship-between-coronary-artery-status-evaluated-by-coronary-computed-tomography-angiography-and-development-of-cardiomyopathy-in-carbon-monoxide-poisoned-patients-with-myocardial-injury-a-prospective-observational-study
#2
Yong Sung Cha, Hyun Kim, Yoonsuk Lee, Woocheol Kwon, Jung-Woo Son, Hyun Youk, Hyung Il Kim, Oh Hyun Kim, Kyung Hye Park, Kyoung-Chul Cha, Kang Hyun Lee, Sung Oh Hwang
OBJECTIVES: Whether coronary artery changes are a main mechanism in the development of carbon monoxide (CO)-induced cardiomyopathy remains unknown. We investigated the effects of coronary artery stenosis on the presence or patterns of cardiomyopathy in CO-poisoned patients with myocardial injury defined as elevation of troponin I. MATERIALS AND METHODS: This prospective observational study collected data from consecutive patients who were diagnosed with CO poisoning and myocardial injury during the 24-month study period...
August 16, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28812247/towards-robot-assisted-echocardiographic-monitoring-in-catheterization-laboratories-usability-centered-manipulator-for-transesophageal-echocardiography
#3
Christina Pahl, Henning Ebelt, Mostafa Sayahkaraji, Eko Supriyanto, Amiliana Soesanto
This paper proposes a robotic Transesophageal Echocardiography (TOE) system concept for Catheterization Laboratories. Cardiovascular disease causes one third of all global mortality. TOE is utilized to assess cardiovascular structures and monitor cardiac function during diagnostic procedures and catheter-based structural interventions. However, the operation of TOE underlies various conditions that may cause a negative impact on performance, the health of the cardiac sonographer and patient safety. These factors have been conflated and evince the potential of robot-assisted TOE...
August 15, 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28811765/regression-of-right-ventricular-systolic-pressure-after-successful-percutaneous-mitral-commissurotomy-in-patients-with-isolated-severe-mitral-stenosis
#4
Shah Zeb, Tariq Ashraf, Muhammad Hashim, Syed Nadeem Hassan Rizvi
OBJECTIVE: To know the regression of right ventricular pressure after successful percutaneous transluminalmitral commissurotomy (PTMC) in patients with severe isolated mitral stenosis. METHODS: This descriptive study was performed in inpatient and outpatient department of National Institute of Cardiovascular Disease from 1(st) February 2016 to 31(st) August 2016. Echocardiography of all patients with successful PTMC were recorded 24 hours and 06 months following PTMC to see for Regression of right ventricular pressure along with other baseline echocardiographic parameters...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28810592/protective-effect-and-mechanism-of-estrogen-receptor-%C3%AE-on-myocardial-infarction-in-mice
#5
Jun-Biao Zhang, Chang-Lei Guo
The protective effect and the mechanism of estrogen receptor β (ERβ) on myocardial infarction (MI) in mice were explored. A total of 12 female Tg-ERβ transgenic mice and 12 non-transgenic littermate control (NLC) wild-type C57 mice were used for the present study. Both transgenic and wild-type mice had similar baseline data such as age, sex, and weight. The mouse model of MI was established by coronary artery ligation method, and the cardiac structure and function changes of the mouse were observed by ultrasonic echocardiography on days 1, 3 and 7 after the operation...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810584/evaluation-of-two-dimensional-strain-echocardiography-for-quantifying-right-ventricular-function-in-patients-with-pulmonary-arterial-hypertension
#6
Yong Liu, Yong Wang, Yingying Wang, Zhe Wen
The aim of the current study was to evaluate the use of two-dimensional strain echocardiography (2DS) in quantifying right ventricular (RV) function in patients with pulmonary arterial hypertension (PAH). A total of 41 patients with PAH and 40 healthy control patients were recruited to the study. 2DS was used to determine the strain (ε) and strain rate (SR) of basal, middle and apical segments of the RV free wall. The aforementioned indicators were compared with measurements of RV function taken by conventional ultrasound and right heart catheterization...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810550/2d-sti-combined-with-gated-99-tc-m-mibi-mpi-for-the-diagnosis-of-myocardial-ischemia-in-hypercholesterolemia-patients
#7
Yi Song, Rui-Fang Zhang, Yu Liu
This study aimed to investigate the reliability of ultrasound two-dimensional speckle tracking imaging (2D-STI) for the evaluation of myocardial ischemia in familial hypercholesterolemia (FH) patients. We recruited 28 patients clinically diagnosed with homozygous familial hypercholesterolemia (HoFH) and subjected them to 2D-STI, gated transthoracic Doppler echocardiography (TTDE), and (99)Tc(m)-methoxyisobutylisonitrile myocardial perfusion imaging ((99)Tc(m)-MIBI MPI). The sensitivity, specificity and diagnostic accordance rate of TTDE and 2D-STI for myocardial ischemia in HoFH patients were compared with the (99)Tc(m)-MIBI scores...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810106/a-case-of-silent-q-fever-endocarditis
#8
Kashif Shaikh, Henry Travers, Amornpol Anuwatworn, Kalyan Potu, Brandy Pownell, Maria Stys, Adam Stys, Anoop Kumar
Q fever endocarditis is a rare, culture negative endocarditis caused by Coxiella burnetii, a spore-forming gram negative coccobacillus. Presenting symptoms can be very non-specific; thus, diagnosis may be delayed. We present a case of a 65-year-old male patient with history of aortic aneurysm who complained of chronic fatigue. He was found to have aortic valve vegetation on routine echocardiography. Q fever endocarditis was diagnosed based on elevated Q fever serology; there was absence of fever. This case illustrated a rare, under-recognized and atypical manifestation of Q fever endocarditis...
December 2016: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28810087/multiple-pulmonary-arteriovenous-malformations-an-unusual-cause-of-shortness-of-breath-and-recurrent-strokes
#9
Kalyan C Potu, Shenjing Li, Shawn C Kelly, Julia A Prescott-Focht, Scott Pham
OBJECTIVE: To discuss an uncommon case of a patient with multiple pulmonary arteriovenous malformations (PAVMs) presenting with dyspnea on exertion and recurrent strokes. BACKGROUND: A 79-year-old woman with recent onset recurrent cerebrovascular accidents (CVAs) was referred to cardiology for evaluation of dyspnea on exertion. Clinical examination was unrevealing. METHODS: A transthoracic echocardiogram (TTE) with agitated saline was suggestive of an extra-cardiac shunt...
February 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/28809063/color-and-power-doppler-combined-with-fetal-intelligent-navigation-echocardiography-fine-to-evaluate-the-fetal-heart
#10
L Yeo, R Romero
OBJECTIVE: To evaluate the performance of color and bidirectional power Doppler ultrasound combined with Fetal Intelligent Navigation Echocardiography (FINE) in examining the fetal heart. METHODS: A prospective cohort study was conducted of fetuses in the second and third trimesters with a normal heart or with congenital heart disease (CHD). One or more spatiotemporal image correlation (STIC) volume datasets, combined with color or bidirectional power Doppler (S-flow) imaging, were acquired in the apical four-chamber view...
August 14, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28808933/cardiovascular-disease-in-clozapine-treated-patients-evidence-mechanisms-and-management
#11
REVIEW
Kathlyn J Ronaldson
Myocarditis occurs in about 3% of those initiated on clozapine but monitoring reduces the risk of serious outcome. Cardiomyopathy may develop after myocarditis, or from prolonged tachycardia. Monitoring using echocardiography is not deemed cost effective. Tachycardia, orthostatic hypotension and reduced heart rate variability are a group of clozapine-related adverse effects associated with autonomic dysfunction and may have serious consequences in the long term. Elevated heart rate and poor heart rate variability can be treated with a β-blocker or a non-dihydropyridine calcium channel blocker, while orthostatic hypotension can be alleviated by increased fluid intake and abdominal binding, but may require pharmacological intervention...
August 14, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28808841/prognostic-significance-of-myocardial-energy-expenditure-and-myocardial-efficiency-in-patients-with-heart-failure-with-reduced-ejection-fraction
#12
Mehmet S Cetin, Elif H Ozcan Cetin, Ugur Canpolat, Hatice Sasmaz, Ahmet Temizhan, Sinan Aydogdu
In heart failure with reduced ejection fraction (HFrEF) patients, myocardial blood flow (MBF), myocardial energy expenditure (MEE), myocardial efficiency has been poorly evaluated because of the necessity of invasive procedures in the determination of these parameters. Transthoracic echocardiography (TTE) can provide reliable data for MEE, MBF (via coronary sinus (CS) flows). Also, myocardial efficiency can be evaluated by the MEE to MBF ratio. We aim to assess MBF, MEE and energy efficiency and the prognostic value of these parameters in HFrEF...
August 14, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28808772/longitudinal-strain-assessed-by-cardiac-magnetic-resonance-correlates-to-hemodynamic-findings-in-patients-with-severe-aortic-stenosis-and-predicts-positive-remodeling-after-transcatheter-aortic-valve-replacement
#13
Dominik Buckert, Maciej Cieslik, Raid Tibi, Michael Radermacher, Volker Rasche, Peter Bernhardt, Vinzenz Hombach, Wolfgang Rottbauer, Jochen Wöhrle
AIMS: To assess left-ventricular strain parameters before and after transcatheter aortic valve replacement (TAVR) by feature tracking cardiac magnetic resonance imaging (FT CMR) and to correlate the findings to hemodynamic state and left-ventricular remodeling. METHODS AND RESULTS: Patients with symptomatic AS underwent FT CMR before and after TAVR. Patients were carefully evaluated by a comprehensive work-up including CMR, echocardiography and left and right heart catheterization...
August 14, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28808511/large-endocardial-rheumatoid-nodules-a-case-report-and-review-of-the-literature
#14
Allen Vantrease, Christopher Trabue, James Atkinson, Paul McNabb
Rheumatoid nodules occur frequently in patients with rheumatoid arthritis and are the most common cutaneous manifestation of the disease. Although uncommon, rheumatoid nodules may also occur on cardiac valves, where they may be large and clinically significant. They may embolize and cause stroke. They may cause regurgitant murmurs, or they may result in valvular destruction. Echocardiographically, they may mimic an atrial myxoma or appear as a vegetation. We present a patient with seronegative rheumatoid arthritis who developed an acute embolic stroke; he had peripheral stigmata of infective endocarditis on physical examination and echocardiography revealed a mitral valve vegetation...
July 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28808190/cholesterol-crystal-embolization-following-plaque-rupture-a-systemic-disease-with-unusual-features
#15
Firas Ghanem, Deepthi Vodnala, Jagadeesh K Kalavakunta, Sridevi Durga, Noah Thormeier, Prem Subramaniyam, Scott Abela, George S Abela
Cholesterol crystal embolic (CCE) syndrome is often a clinically challenging condition that has a poor prognostic implication. It is a result of plaque rupture with release of cholesterol crystals into the circulation that embolize into various tissue organs. Plaque rupture seems to be triggered by an expanding necrotic core during cholesterol crystallization forming sharp tipped crystals that perforate and tear the fibrous cap. Embolizing cholesterol crystals then initiate both local and systemic inflammation that eventually lead to vascular fibrosis and obstruction causing symptoms that can mimic other vasculitic conditions...
January 19, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28807827/the-endotoxemia-cardiac-dysfunction-is-attenuated-by-ampk-mtor-signaling-pathway-regulating-autophagy
#16
Jie Zhang, Peng Zhao, Nanhu Quan, Lin Wang, Xu Chen, Courtney Cates, Thomas Rousselle, Ji Li
AMP-activated protein kinase (AMPK), an enzyme that plays a role in cellular energy homeostasis, modulates myocardial signaling in the heart. Myocardial dysfunction is a common complication of sepsis. Autophagy is involved in the aging related cardiac dysfunction. However, the role of AMPK in sepsis-induced cardiotoxicity has yet to be clarified, especially in aging. In this study, we explored the role of AMPK on lipopolysaccharide (LPS)-induced myocardial dysfunction and elucidated the potential mechanisms of AMPK/mTOR pathway against autophagy in young and aged mice...
August 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28807722/coronary-microvascular-dysfunction-is-not-associated-with-a-history-of-reproductive-risk-factors-in-women-with-angina-pectoris-an-ipower-substudy
#17
Hannah Elena Suhrs, Anna Meta Kristensen, Anna Bay Rask, Marie Mide Michelsen, Daria Frestad, Naja Dam Mygind, Kira Bové, Eva Prescott
BACKGROUND: Reproductive risk factors such as preeclampsia and recurrent miscarriages have been associated with adverse cardiovascular (CV) events. Underlying coronary microvascular dysfunction (CMD) may be a common denominator. PURPOSE: We investigated whether a history of reproductive risk factors was associated with CMD in women with angina pectoris and no obstructive coronary artery disease (CAD). METHODS: Participants from the iPOWER study, including women with angina pectoris and no obstructive CAD (<50% stenosis), were invited to complete an electronic survey regarding reproductive risk factors: recurrent miscarriages, gestational diabetes, preeclampsia, rhesus immunity, polycystic ovary syndrome and menopausal status as well as migraine and Raynaud phenomenon...
August 11, 2017: Maturitas
https://www.readbyqxmd.com/read/28807697/first-do-no-harm-echocardiography-during-cardiac-arrest-may-increase-pulse-check-duration
#18
EDITORIAL
Ari Moskowitz, Katherine M Berg
No abstract text is available yet for this article.
August 11, 2017: Resuscitation
https://www.readbyqxmd.com/read/28807552/assessment-of-deformation-of-the-mitral-valve-complex-during-off-pump-coronary-artery-bypass-surgery-using-three-dimensional-echocardiography-in-a-porcine-model
#19
Takashi Igarashi, Masumi Iwai-Takano, Hiroki Wakamatsu, Mineyuki Haruta, Sadao Omata, Hitoshi Yokoyama
BACKGROUND: This study aimed to assess the deformation of the mitral valve complex during the displacement of the beating heart by using three-dimensional echocardiography in a porcine off-pump coronary artery bypass grafting (OPCAB) model. METHODS: In nine healthy swine, we positioned the beating heart as an OPCAB model, i.e. control, left anterior descending artery (LAD), right coronary artery (RCA), and left circumflex artery (LCX) positions. In each position, three-dimensional echocardiography was performed to assess the mitral valve complex with hemodynamic parameters...
August 11, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28807551/the-optimal-cut-off-of-blood-pressure-related-to-left-ventricular-diastolic-dysfunction-and-remodeling-in-asian-diabetic-patients
#20
Ju Young Jung, Sung Keun Park, Jae-Hong Ryoo, Chang-Mo Oh, Jeong Gyu Kang, Kanghee Moon, Keum Ok Lee, Joong-Myung Choi
BACKGROUND: Although a recent randomized trial found no difference between intensive and standard blood pressure (BP) control in patients with diabetes mellitus (DM), the debate over the optimal BP target continues. Thus, the present study investigated the effect of BP on the subclinical left ventricular (LV) function and structural changes in diabetic patients. METHOD: A total of 2649 patients with DM who received echocardiography were enrolled in this study. Study population was stratified by three groups according to BP and presence of hypertension (normal, <130/80mmHg; prehypertension, ≥130/80mmHg without hypertension; hypertension, ≥140/90mmHg or history of hypertension)...
August 11, 2017: Journal of Cardiology
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