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Critical echocardiography

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https://www.readbyqxmd.com/read/28526706/cardiac-hyporesponsiveness-in-severe-sepsis-is-associated-with-nitric-oxide-dependent-activation-of-g-protein-receptor-kinase
#1
Daniela Dal-Secco, Silvia DalBó, Natalia E S Lautherbach, Fábio N Gava, Mara Rubia Nunes Celes, Patricia Oliveira Benedet, Adriana H Souza, Juliana Akinaga, Vanessa Lima, Katiussia P Silva, Luiz Ricardo A Kiguti, Marcos A Rossi, Isis do Carmo Kettelhut, André Sampaio Pupo, Fernando Queiroz Cunha, Jamil Assreuy
G protein-coupled receptor kinase isoform 2 (GRK2) has a critical role in physiological and pharmacological responses to endogenous and exogenous substances. Sepsis causes an important cardiovascular dysfunction in which nitric oxide (NO) has a relevant role. The present study aimed to assess the putative effect of inducible NO synthase (NOS-2)-derived NO on the activity of GRK2 in the context of septic cardiac dysfunction. C57BL/6 mice were submitted to severe septic injury by cecal ligation and puncture (CLP)...
May 19, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28524029/-predictive-value-of-left-ventricular-diastolic-dysfunction-on-mechanical-ventilation-weaning
#2
Hui Wang, Ming Ma, Desheng Chen, Gang Li, Shupeng Wang, Jingen Xia, Jun Duan
OBJECTIVE: To investigate the predictive value of left ventricular diastolic function on mechanical ventilation weaning in patients with left ventricular ejection fraction (LVEF) > 0.50. METHODS: A retrospective case control study was conducted. Sixty-five patients with LVEF > 0.50 undergoing mechanical ventilation for more than 48 hours admitted to surgery intensive care unit (ICU) of China-Japan Friendship Hospital from June 2014 to December 2016 were enrolled...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28523563/assessment-of-endothelial-cell-function-and-physiological-microcirculatory-reserve-by-video-microscopy-using-a-topical-acetylcholine-and-nitroglycerin-challenge
#3
Matthias Peter Hilty, Jacqueline Pichler, Bulent Ergin, Urs Hefti, Tobias Michael Merz, Can Ince, Marco Maggiorini
BACKGROUND: Assessment of the microcirculation is a promising target for the hemodynamic management of critically ill patients. However, just as the sole reliance on macrocirculatory parameters, single static parameters of the microcirculation may not represent a sufficient guide. Our hypothesis was that by serial topical application of acetylcholine (ACH) and nitroglycerin (NG), the sublingual microcirculation can be challenged to determine its endothelial cell-dependent and smooth muscle-dependent physiological reserve capacity...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28512099/mitral-valve-vegetation-diagnosed-with-oesophageal-ultrasound-with-bronchoscope-eus-b
#4
Ajoe John Kattoor, Yogita M Rochlani, Kevin Kuriakose, Nikhil K Meena
Oesophageal ultrasound with bronchoscope (EUS-B) is designed to evaluate mediastinal structures. We describe a case of a 78-year-old woman who presented with altered mental status for 2 weeks. CT head revealed a subacute infarct in the right middle cerebral artery distribution. She was also found to have a lung mass on chest imaging. EUS-B-guided fine needle aspiration demonstrated the presence of adenocarcinoma in station 7 lymph node and in the mass. Immunohistochemistry confirmed it to be a lung primary as the Thyroid Transcription Factor-1 (TTF-1) was strongly positive...
May 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28509744/critical-care-echocardiography-guidelines-strength-in-international-cooperation-regarding-terminology-and-competency-standards
#5
Michel Slama, Anthony S McLean, Antoine Vieillard Baron
No abstract text is available yet for this article.
June 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28505975/reduced-cardiovascular-functions-in%C3%A2-patients-with-alzheimer-s-disease
#6
Wang-Sheng Jin, Xian-Le Bu, Ye-Ran Wang, Ling Li, Wei-Wei Li, Yu-Hui Liu, Chi Zhu, Xiu-Qing Yao, Yang Chen, Chang-Yue Gao, Tao Zhang, Chang-Yue Gao, Hua-Dong Zhou, Fan Zeng, Yan-Jiang Wang
Previous studies have suggested that cardiovascular functions might play a critical role in Alzheimer's disease (AD) pathogenesis. However, the relationship among heart function, blood flow of cerebral vessels, and AD remains unclear. In the present study, AD patients (n = 34) and age- and gender-matched cognitively normal controls (n = 34) were recruited. Comorbidity information was collected. The ejection fraction was measured using echocardiography, and the mean velocity, pulsatility index (PI), and resistance index (RI) of the basilar artery (BA), left terminal internal carotid artery (LTICA), and right terminal internal carotid artery (RTICA) were measured using transcranial Doppler...
May 11, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28497395/cardio-protective-effects-of-qishen-granule-on-sarcoplasmic-reticulum-ca-2-handling-in-heart-failure-rats
#7
Ling-Hui Lu, Chun Li, Qi-Yan Wang, Qian Zhang, Yi Zhang, Hui Meng, Yong Wang, Wei Wang
OBJECTIVES: To assess the effects of Qishen Granule (, QSG) on sarcoplasmic reticulum (SR) Ca(2+) handling in heart failure (HF) model of rats and to explore the underlying molecular mechanisms. METHODS: HF rat models were induced by left anterior descending coronary artery ligation surgery and high-fat diet feeding. Rats were randomly divided into sham (n=10), model (n=10), QSG (n=12, 2.2 g/kg daily) and metoprolol groups (n=12, 10.5 mg/kg daily). The therapeutic effects of QSG were evaluated by echocardiography and blood lipid testing...
May 11, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28495379/transthoracic-echocardiography-for-diagnosing-pulmonary-embolism-a-systematic-review-and-meta-analysis
#8
J Matthew Fields, Joshua Davis, Lily Girson, Arthur Au, Jacqueline Potts, Charity J Morgan, Imelda Vetter, Lee Ann Riesenberg
OBJECTIVE: Pulmonary embolism (PE) is a common diagnosis with significant mortality if not appropriately treated. The use of transthoracic echocardiography in patients with PE is common; however, its diagnostic capabilities in this use are unclear. With the increased use of ultrasonography in medical settings, it is important to understand the strengths and limitations of echocardiography for the diagnosis of PE. METHODS: We conducted a systematic review of PubMed, CINAHL, and EMBASE through 2016 for articles assessing the diagnostic accuracy of transthoracic echocardiography for PE...
May 9, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28485321/monitoring-changes-in-hepatic-venous-velocities-flow-after-a-fluid-challenge-can-identify-shock-patients-who-lack-fluid-responsiveness
#9
Wei Du, Xiao-Ting Wang, Yun Long, Da-Wei Liu
BACKGROUND: Evaluating the hemodynamic status and predicting fluid responsiveness are important in critical ultrasound assessment of shock patients. Transthoracic echocardiography with noninvasive diagnostic parameters allows the assessment of volume responsiveness. This study aimed to assess the hemodynamic changes in the liver and systemic hemodynamic changes during fluid challenge and during passive leg raising (PLR) by measuring hepatic venous flow (HVF) velocity. METHODS: This is an open-label study in a tertiary teaching hospital...
May 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28485316/left-ventricular-longitudinal-systolic-function-in-septic-shock-patients-with-normal-ejection-fraction-a-case-control-study
#10
Hong-Min Zhang, Xiao-Ting Wang, Li-Na Zhang, Wei He, Qing Zhang, Da-Wei Liu
BACKGROUND: Septic cardiomyopathy is a common finding in septic shock patients. The accepted definition of septic cardiomyopathy is often based on the left ventricular ejection fraction (LVEF). The aim of this study was to determine whether the left ventricular longitudinal systolic function was more sensitive than the LVEF in heart function appraisal of septic shock patients. METHODS: This was a case-control study conducted at a 40-bed Intensive Care Unit (ICU) of Peking Union Medical College Hospital...
May 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28482805/management-of-potentially-life-threatening-emergencies-at-74-primary-level-hospitals-in-mongolia-results-of-a-prospective-observational-multicenter-study
#11
Naranpurev Mendsaikhan, Davaa Gombo, Ganbold Lundeg, Christian Schmittinger, Martin W Dünser
BACKGROUND: While the capacities to care for and epidemiology of emergency and critically ill patients have been reported for secondary and tertiary level hospitals in Mongolia, no data exist for Mongolian primary level hospitals. METHODS: In this prospective, observational multicenter study, 74 primary level hospitals of Mongolia were included. We determined the capacities of these hospitals to manage medical emergencies. Furthermore, characteristics of patients presenting with potentially life-threatening emergencies to these hospitals were evaluated during a 6 month period...
May 8, 2017: BMC Emergency Medicine
https://www.readbyqxmd.com/read/28471441/how-to-assess-hemodynamic-status-in-very-preterm-newborns-in-the-first-week-of-life
#12
G Escourrou, L Renesme, E Zana, A Rideau, M O Marcoux, E Lopez, G Gascoin, P Kuhn, P Tourneux, I Guellec, C Flamant
BACKGROUND: Assessing hemodynamic status in preterm newborns is an essential task, as many studies have shown increased morbidity when hemodynamic parameters are abnormal. Although oscillometric monitoring of arterial blood pressure (BP) is widely used due to its simplicity and lack of side effects, these values are not always correlated with microcirculation and oxygen delivery. OBJECTIVES: This review focuses on different tools for the assessment of hemodynamic status in preterm newborns...
May 4, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28471148/clinical-imaging-in-patients-experiencing-chest-pain
#13
Angelo Silverio, Rodolfo Citro
Non-invasive imaging modalities integrate the clinical and laboratory diagnostic work-up of patients admitted in emergency department for chest pain. Transthoracic echocardiography is the first-line imaging tool because it is rapidly and widely available, bedside feasible and cost-effective. Even when a comprensive exam is not feasible, a fast focused ultrasound exam should be performed. Contrast enhanced computed tomography is an easily accessible tool with specific application in patients suspected for pulmonary embolism (PE) and acute coronary syndrome (ACS) according to the pre-test risk assessment and to the clinical status...
May 3, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/28471147/clinical-cardiac-imaging-in-cardiac-arrest-and-periarrest
#14
Antonio F Amico
Echocardiography during preresuscitation care, cardiopulmonary resuscitation and postresuscitation is suggested to be an important tool in critical care medicine. At present a structured process integrating advanced life support and transtoracic echocardiography is not included in guidelines of cardiac resuscitation. However identification and treatment of reversible causes or complicating factors during cardiopulmonary resuscitation is rational and aimed to improve the outcomes. Furthermore, echocardiography has the potential to define the efficiency of the chest compressions and the optimal duration of the resuscitation maneuvers and/or the right time to switch to extracorporeal resuscitation...
May 3, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/28471059/long-or-redundant-leaflet-complicating-transcatheter-mitral-valve-replacement-case-vignettes-that-advocate-for-removal-or-reduction-of-the-anterior-mitral-leaflet
#15
Adam B Greenbaum, Jose F Condado, Marvin Eng, Stamatios Lerakis, Dee Dee Wang, Dennis W Kim, Robert J Lederman, Gaetano Paone, William W O Neill, Vinod H Thourani, Vasilis C Babaliaros
Transcatheter mitral valve replacement (TMVR) procedures can be an alternative to surgical valve replacement for high surgical risk patients with bioprosthetic mitral valves, annuloplasty rings, or severe mitral annular calcification (MAC). TMVR can trigger acute left ventricular outflow tract (LVOT) obstruction from permanent displacement of the native anterior mitral leaflet toward the left ventricular septum, more often among patients undergoing valve-in-ring and valve-in-MAC procedures. Although acute LVOT obstruction is well described in the literature, there are important additional complications of TMVR related to the length and/or redundancy of the anterior mitral valve that have been recognized after mitral valve surgery and have not been previously reported in the setting of TMVR...
May 4, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28461416/aortic-valve-bioprostheses-leaflet-immobility-and-valve-thrombosis
#16
REVIEW
David R Holmes, Michael J Mack
Leaflet immobility and valve thrombosis have been reported with both transcatheter and surgical aortic valve bioprostheses. The relationships between these abnormalities and their incidence, time course, clinical significance, predisposing factors, optimal imaging modality, and current therapeutic options remain uncertain but are rapidly evolving. Four-dimensional computerized tomographic imaging has been determined to have the highest sensitivity in studies evaluating leaflet immobility and valve thrombosis...
May 2, 2017: Circulation
https://www.readbyqxmd.com/read/28449449/echocardiography-to-guide-fluid-therapy-in-critically-ill-patients-check-the-heart-and-take-a-quick-look-at-the-lungs
#17
EDITORIAL
Federico Franchi, Luigi Vetrugno, Sabino Scolletta
No abstract text is available yet for this article.
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28436133/population-trends-in-prenatal-detection-of-transposition-of-great-arteries-impact-of-obstetrical-screening-ultrasound-guidelines
#18
Prasad Ravi, Lindsay Mills, Deborah Fruitman, Winnie Savard, Timothy Colen, Nee Khoo, Jesus Serrano-Lomelin, Lisa K Hornberger
BACKGROUND: D-transposition of the great arteries (D-TGA) is one of the most common critical neonatal heart defects. Although there are clinical advantages to a prenatal diagnosis, D-TGA has had low prenatal detection internationally. Recent obstetrical ultrasound guidelines incorporating screening of cardiac outflows may improve prenatal detection of D-TGA. We sought to evaluate trends in the prenatal detection of D-TGA with/without ventricular septal defect (VSD) in Alberta over the past 13 years, examining the potential impact of enhanced ultrasound guidelines in 2009-2010 and 2013 and factors impacting detection...
April 24, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28431420/generative-retrieval-improves-learning-and-retention-of-cardiac-anatomy-using-transesophageal-echocardiography
#19
Amanda M Kleiman, Katherine T Forkin, Allison J Bechtel, Stephen R Collins, Jennie Z Ma, Edward C Nemergut, Julie L Huffmyer
BACKGROUND: Transesophageal echocardiography (TEE) is a valuable monitor for patients undergoing cardiac and noncardiac surgery as it allows for evaluation of cardiovascular compromise in the perioperative period. It is challenging for anesthesiology residents and medical students to learn to use and interpret TEE in the clinical environment. A critical component of learning to use and interpret TEE is a strong grasp of normal cardiovascular ultrasound anatomy. METHODS: Fifteen fourth-year medical students and 15 post-graduate year (PGY) 1 and 2 anesthesiology residents without prior training in cardiac anesthesia or TEE viewed normal cardiovascular anatomy TEE video clips; participants were randomized to learning cardiac anatomy in generative retrieval (GR) and standard practice (SP) groups...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28429500/electrocardiographic-appearance-of-aortic-stenosis-before-and-after-aortic-valve-replacement
#20
Ivana I Vranic
BACKGROUND: So far, the specific appearance of QRS complex, ST-segment, and T wave was observed in aortic stenosis (AS). S-wave dynamic change in leads V1 -V3 was not reported in AS. METHODS: In a single-center, prospective study, we included a total number of 1.175 patients who underwent surgical aortic valve replacement (AVR). We conducted 3-year gathering of patients with symptomatic and asymptomatic severe AS, and separated them by hemodynamic stability into groups A and B, through EFLV (of more or less than 50%), AVA (of more or less than 0...
April 21, 2017: Annals of Noninvasive Electrocardiology
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