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Critical echocardiography

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https://www.readbyqxmd.com/read/28331645/propylene-glycol-toxicity-in-adolescent-with-refractory-myoclonic-status-epilepticus
#1
Kara A Bjur, Bryan C Cannon, Anthony L Fine, Matthew J Ritter, Kerry E Schueler, Michael E Nemergut
Propylene glycol (PG) is a solvent commonly used in medications that, while benign at low doses, may cause toxicity in adults and children at high doses. We describe a case and the physiologic sequelae of propylene glycol toxicity manifested in a critically ill adolescent male with refractory myoclonic status epilepticus aggressively treated with multiple PG-containing medications (lorazepam, phenobarbital, and pentobarbital)-all within accepted dosing guidelines and a total daily PG exposure previously recognized to be safe...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28320395/vasoproliferative-process-resembling-pulmonary-capillary-hemangiomatosis-in-a-cat
#2
J A Jaffey, K J Williams, I Masseau, M Krueger, C Reinero
BACKGROUND: Pulmonary capillary hemangiomatosis is a rare, vascular obstructive disorder that uniformly causes pulmonary arterial hypertension. Clinically, pulmonary capillary hemangiomatosis is indistinguishable from primary pulmonary arterial hypertension and histology is required for definitive diagnosis. The distinctive histologic feature of pulmonary capillary hemangiomatosis is non-malignant extensive proliferation of capillaries in the alveolar septae. Vasodilator treatment of humans with primary arterial hypertension due to pulmonary capillary hemangiomatosis can result in fatal acute pulmonary edema...
March 20, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28303408/methylene-blue-decreases-mitochondrial-lysine-acetylation-in-the-diabetic-heart
#3
Jessica M Berthiaume, Chia-Heng Hsiung, Alison B Austin, Sean P McBrayer, Mikayla M Depuydt, Margaret P Chandler, Masaru Miyagi, Mariana G Rosca
Diabetic cardiomyopathy is preceded by mitochondrial alterations, and progresses to heart failure. We studied whether treatment with methylene blue (MB), a compound that was reported to serve as an alternate electron carrier within the mitochondrial electron transport chain (ETC), improves mitochondrial metabolism and cardiac function in type 1 diabetes. MB was administered at 10 mg/kg/day to control and diabetic rats. Both echocardiography and hemodynamic studies were performed to assess cardiac function...
March 16, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28295809/a-new-method-to-predict-the-need-for-a-rashkind-procedure-in-fetuses-with-dextro-transposition-of-the-great-arteries
#4
Maciej Słodki, Roland Axt-Fliedner, Katarzyna Zych-Krekora, Aline Wolter, Andreea Kawecki, Christian Enzensberge, Ewa Gulczyńska, Maria Respondek-Liberska
OBJECTIVE: Prenatal congenital heart disease classification system specify critical d-TGA with restriction of the foramen ovale (which requires Rashkind procedure) and planned d-TGA. However, current prenatal diagnostic criteria for post-delivery foramen ovale (FO) restriction in d-TGA are inadequate, resulting in a high false negative rate. We aim to find an echocardiographic features to predict the need for Rashkind procedure. METHODS: 98 patients from 2 European centers diagnosed prenatally with fetal d-TGA from 2006 to 2013 were analyzed and two groups were compared: 1) those in which the Rashkind procedure was performed within the first 24 hours of life; and 2) those who did not undergo a Rashkind procedure before cardiac surgery...
March 14, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28275592/model-of-human-fetal-growth-in-hypoplastic-left-heart-syndrome-reduced-ventricular-growth-due-to-decreased-ventricular-filling-and-altered-shape
#5
Sukriti Dewan, Adarsh Krishnamurthy, Devleena Kole, Giulia Conca, Roy Kerckhoffs, Michael D Puchalski, Jeffrey H Omens, Heather Sun, Vishal Nigam, Andrew D McCulloch
INTRODUCTION: Hypoplastic left heart syndrome (HLHS) is a congenital condition with an underdeveloped left ventricle (LV) that provides inadequate systemic blood flow postnatally. The development of HLHS is postulated to be due to altered biomechanical stimuli during gestation. Predicting LV size at birth using mid-gestation fetal echocardiography is a clinical challenge critical to prognostic counseling. HYPOTHESIS: We hypothesized that decreased ventricular filling in utero due to mitral stenosis may reduce LV growth in the fetal heart via mechanical growth signaling...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28274956/natriuretic-peptides-in-the-evaluation-and-management-of-degenerative-mitral-regurgitation-a-systematic-review
#6
REVIEW
Michael M Johl, Pankaj Malhotra, Devin W Kehl, Florian Rader, Robert J Siegel
Progression of degenerative mitral regurgitation (MR) leads to irreversible cardiac damage. Therefore, longitudinal follow up to determine the optimal timing of surgery is critical. Current data indicates that in addition to the standard of care-assessing for symptoms and signs of left ventricular (LV) decompensation with routine echocardiography-serial measurement of natriuretic peptides offers a quantitative means to identify patients who may benefit from closer supervision, if not surgery. Natriuretic peptide levels, and specifically changes from baseline, identify both symptomatic patients and others likely to develop cardiac dysfunction...
March 8, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28271596/team-based-approach-to-identify-cardiac-toxicity-in-critically-ill-hematopoietic-stem-cell-transplant-recipients
#7
Christopher E Dandoy, Sonata Jodele, Zachary Paff, Russel Hirsch, Thomas D Ryan, John L Jefferies, Michelle Cash, Seth Rotz, Abigail Pate, Michael D Taylor, Javier El-Bietar, Kasiani C Myers, Gregory Wallace, Adam Nelson, Michael Grimley, Thomas Pfeiffer, Adam Lane, Stella M Davies, Ranjit S Chima
INTRODUCTION: We observed pulmonary hypertension (PH), pericardial effusions, and left ventricular systolic dysfunction (LVSD) in multiple critically ill hematopoietic stem cell transplant (HSCT) recipients. We implemented routine structured echocardiography screening for HSCT recipients admitted to the pediatric intensive care unit (PICU) using a standardized multidisciplinary process. METHODS: HSCT recipients admitted to the PICU with respiratory distress, hypoxia, shock, and complications related to transplant-associated thrombotic microangiopathy were screened on admission and every 1-2 weeks thereafter...
March 8, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28219811/stress-echocardiography-in-patients-who-experienced-mechanical-ventilation-weaning-failure
#8
Manuel Ruiz-Bailén, Jesús Cobo-Molinos, Ana Castillo-Rivera, María Dolores Pola-Gallego-de-Guzmán, Antonio Cárdenas-Cruz, Antonio Martínez-Amat, María Sevilla-Martínez, Clara Hernández-Caballero
INTRODUCTION: Critically ill patients may suffer varying degrees of temporary myocardial dysfunction during respiratory weaning that could play an important role in weaning failure. OBJECTIVES: In this study, we tried to assess the existence of temporary diastolic dysfunction during respiratory weaning. METHODS: Inclusion period is from 2006 to 2015. In this study, we included 181 ventilated patients with cardiogenic shock that were being weaned from mechanical ventilation...
January 18, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28212248/use-of-echocardiography-in-critical-illness-dead-or-alive-does-it-matter
#9
Rasmus Aagaard, Asger Granfledt, Morten Thingemann Bødtker, Bo Løfgren
No abstract text is available yet for this article.
March 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28212053/transthoracic-echocardiography-pitfalls-and-limitations-as-delineated-at-cardiac-ct-and-mr-imaging
#10
Sachin B Malik, Natalie Chen, Rex A Parker, Joe Y Hsu
Transthoracic echocardiography ( TTE transthoracic echocardiography ) is a critical tool in the field of clinical cardiology. It often serves as one of the first-line imaging modalities in the evaluation of cardiac disease owing to its low cost, portability, widespread availability, lack of ionizing radiation, and ability to evaluate both anatomy and function of the heart. Consequently, a large majority of patients undergoing a cardiac computed tomography (CT) or magnetic resonance (MR) imaging examination will have a TTE transthoracic echocardiography available for review...
March 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28209176/infective-endocarditis-causing-mitral-valve-stenosis-a-rare-but-deadly-complication-a-case-report
#11
Michael A Hart, Gautam R Shroff
BACKGROUND: Infective endocarditis rarely causes mitral valve stenosis. When present, it has the potential to cause severe hemodynamic decompensation and death. There are only 15 reported cases in the literature of mitral prosthetic valve bacterial endocarditis causing stenosis by obstruction. This case is even more unusual due to the mechanism by which functional mitral stenosis occurred. CASE PRESENTATION: We report a case of a 23-year-old white woman with a history of intravenous drug abuse who presented with acute heart failure...
February 17, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28208195/echocardiography-in-the-risk-assessment-of-acute-pulmonary-embolism
#12
Talal Dahhan, Fawaz Alenezi, Zainab Samad, Sudarshan Rajagopal
Acute pulmonary embolism (PE) is a major cause of morbidity and mortality and is classified as massive (high risk), submassive (intermediate risk), or nonmassive (low risk) based on the hemodynamic status and clinical characteristics of the patient. At this time, the management of patients with submassive PE remains controversial and approaches for improving risk assessment are critical. In this review, we discuss several echocardiographic methods to assess right heart function that may aid in the risk assessment of patients with acute PE...
February 2017: Seminars in Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28197279/a-sudden-change-of-heart-a-case-of-rapidly-reversed-stress-cardiomyopathy-in-a-critically-ill-patient
#13
Michael I Brener, Ali R Keramati, Marek A Mirski, Oscar H Cingolani
We report the case of a 79-year-old woman who presented to our hospital for elective removal of an infratentorial meningioma and suffered a periprocedural cardiac arrest. Shortly after uncomplicated induction of anesthesia prior to the surgery, the patient became hypotensive and bradycardic, culminating ultimately in a cardiac arrest with pulseless electrical activity. Return of spontaneous circulation occurred within 90 seconds of arrest, but the patient remained dependent on maximal doses of epinephrine and dopamine for hemodynamic support...
June 2016: Cardiology Research
https://www.readbyqxmd.com/read/28183438/cardiac-imaging-for-assessing-low-gradient-severe-aortic-stenosis
#14
REVIEW
Marie-Annick Clavel, Ian G Burwash, Philippe Pibarot
Up to 40% of patients with aortic stenosis (AS) harbor discordant Doppler-echocardiographic findings, the most common of which is the presence of a small aortic valve area (≤1.0 cm(2)) suggesting severe AS, but a low gradient (<40 mm Hg) suggesting nonsevere AS. The purpose of this paper is to present the role of multimodality imaging in the diagnostic and therapeutic management of this challenging entity referred to as low-gradient AS. Doppler-echocardiography is critical to determine the subtype of low-gradient AS: that is, classical low-flow, paradoxical low-flow, or normal-flow...
February 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28153388/short-term-and-long-term-models-of-doxorubicin-induced-cardiomyopathy-in-rats-a-comparison-of-functional-and-histopathological-changes
#15
João Lucas O'Connell, Minna Moreira Dias Romano, Erica C Campos Pulici, Eduardo E V Carvalho, Fernanda R de Souza, Denise M Tanaka, Benedito Carlos Maciel, Hélio C Salgado, Rubens Fazan-Júnior, Marcos A Rossi, Marcus V Simões
OBJECTIVES: Doxorubicin (DXR), an anthracyclic antineoplastic agent, is one of the most commonly drug utilized to induce dilated cardiomyopathy (DCM) and heart failure (HF), but the well optimized protocol for cardiomyopathy induction leading to development of cardiac systolic dysfunction is unclear. This study aims to critically compare short-term and long-term DXR injection protocols for the induction of DCM in rats. METHODS: Animals were allocated into 3 experimental groups: a ST (short-term DXR injection) group, in which animals received 6 intraperitoneal (i...
January 30, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28150025/initial-field-test-of-a-cloud-based-cardiac-auscultation-system-to-determine-murmur-etiology-in-rural-china
#16
Lee Pyles, Pouya Hemmati, J Pan, Xiaoju Yu, Ke Liu, Jing Wang, Andreas Tsakistos, Bistra Zheleva, Weiguang Shao, Quan Ni
A system for collection, distribution, and long distant, asynchronous interpretation of cardiac auscultation has been developed and field-tested in rural China. We initiated a proof-of-concept test as a critical component of design of a system to allow rural physicians with little experience in evaluation of congenital heart disease (CHD) to obtain assistance in diagnosis and management of children with significant heart disease. The project tested the hypothesis that acceptable screening of heart murmurs could be accomplished using a digital stethoscope and internet cloud transmittal to deliver phonocardiograms to an experienced observer...
February 2, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28144779/focused-cardiac-ultrasound-in-the-early-resuscitation-of-severe-sepsis-and-septic-shock-a-prospective-pilot-study
#17
Hiroshi Sekiguchi, Yohei Harada, Hector R Villarraga, Sunil V Mankad, Ognjen Gajic
PURPOSE: Point-of-care ultrasonography has been increasingly used in the care of critically ill patients; however, reports on its use during active resuscitation are limited. The aim of this study was to investigate the true impact of focused cardiac ultrasound (FCU) during the management of sepsis with early (6-h) resuscitation. METHODS: A prospective pilot observational study was conducted at an academic medical center from March 2011 through July 2012. Patients undergoing resuscitation for severe sepsis or septic shock were prospectively enrolled at medical and combined medical-surgical intensive care units...
January 31, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28131704/notch3-deficiency-impairs-coronary-microvascular-maturation-and-reduces-cardiac-recovery-after-myocardial-ischemia
#18
Yong-Kang Tao, Heng Zeng, Guo-Qiang Zhang, Sean T Chen, Xue-Jiao Xie, Xiaochen He, Shuo Wang, Hongyan Wen, Jian-Xiong Chen
RATIONALE: Vascular maturation plays an important role in wound repair post-myocardial infarction (MI). The Notch3 is critical for pericyte recruitment and vascular maturation during embryonic development. OBJECTIVE: This study is to test whether Notch3 deficiency impairs vascular maturation and blunts cardiac functional recovery post-MI. APPROACH AND RESULTS: Wild type (WT) and Notch3 knockout (Notch3KO) mice were subjected to MI by the ligation of left anterior descending coronary artery (LAD)...
January 24, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28129939/2d-echocardiographic-evaluation-of-right-ventricular-function-correlates-with-3d-volumetric-models-in-cardiac-surgery-patients
#19
Harry Magunia, Eckhard Schmid, Jan N Hilberath, Leo Häberle, Christian Grasshoff, Christian Schlensak, Peter Rosenberger, Martina Nowak-Machen
OBJECTIVES: The early diagnosis and treatment of right ventricular (RV) dysfunction are of critical importance in cardiac surgery patients and impact clinical outcome. Two-dimensional (2D) transesophageal echocardiography (TEE) can be used to evaluate RV function using surrogate parameters due to complex RV geometry. The aim of this study was to evaluate whether the commonly used visual evaluation of RV function and size using 2D TEE correlated with the calculated three-dimensional (3D) volumetric models of RV function...
November 14, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28127793/primary-mural-endocarditis-without-valvular-involvement
#20
Mai Tahara, Tomoo Nagai, Yoshiyuki Takase, Shunichi Takiguchi, Yoshiaki Tanaka, Takashi Kunihara, Junko Arakawa, Kazuhiro Nakaya, Akira Hamabe, Youdou Gatate, Takehiko Kujiraoka, Hirotsugu Tabata, Shuichi Katsushika
Primary mural endocarditis is an extremely rare infection in which nonvalvular endocardial involvement is seen without any cardiac structural abnormalities such as ventricular septal defects. The rapid and precise diagnosis of this disease remains challenging. We present 2 cases (67- and 47-year-old male patients) of pathologically confirmed primary mural endocarditis that could have been detected by initial transthoracic echocardiography in the emergency department. Transthoracic echocardiography and transesophageal echocardiography play critical roles in the early recognition and confirmation of primary mural endocarditis...
January 27, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
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