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https://www.readbyqxmd.com/read/29351337/a-portable-prototype-magnetometer-to-differentiate-ischemic-and-non-ischemic-heart-disease-in-patients-with-chest-pain
#1
Shima Ghasemi-Roudsari, Abbas Al-Shimary, Benjamin Varcoe, Rowena Byrom, Lorraine Kearney, Mark Kearney
BACKGROUND: Magnetocardiography (MCG) is a non-invasive technique used to measure and map cardiac magnetic fields. We describe the predictive performance of a portable prototype magnetometer designed for use in acute and routine clinical settings. We assessed the predictive ability of the measurements derived from the magnetometer for the ruling-out of healthy subjects and patients whose chest pain has a non-ischemic origin from those with ischemic heart disease (IHD). METHODS: MCG data were analyzed from a technical performance study, a pilot clinical study, and a young healthy reference group...
2018: PloS One
https://www.readbyqxmd.com/read/29351160/acute-cardiorespiratory-and-metabolic-effects-of-a-sandbag-resistance-exercise-protocol
#2
Nicholas A Ratamess, Jie Kang, Jeremy D Kuper, Elizabeth A O'Grady, Nicole L Ellis, Ira T Vought, Emma Culleton, Jill A Bush, Avery D Faigenbaum
The purpose of the present study was to examine the acute cardiorespiratory and metabolic effects of a sandbag (SB) resistance exercise protocol and compare the responses to time-matched treadmill running protocols. Eight healthy, resistance-trained men (21.1 ± 1.0 years; 86.1 ± 7.8 kg) completed four protocols of equal duration in random sequence: 1) SB, 2) treadmill running at 60% of VO2 reserve (60VO2R), 3) treadmill running at 80% of VO2 reserve (80VO2R), and 4) a control protocol. The SB protocol was 16 min in duration and consisted of 3 circuits of 8 multiple-joint exercises (with 11-, 20-, or -48 kg sandbags) performed for as many repetitions as possible for 20 sec followed by a 10-sec rest interval prior to beginning the next exercise...
January 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29350771/recombinant-relaxin-protects-liver-transplants-from-ischemia-damage-via-hepatocyte-glucocorticoid-receptor-from-bench-to-bedside
#3
Shoichi Kageyama, Kojiro Nakamura, Takehiro Fujii, Bibo Ke, Rebecca A Sosa, Elaine F Reed, Nakul Datta, Ali Zarrinpar, Ronald W Busuttil, Jerzy W Kupiec-Weglinski
Hepatic ischemia-reperfusion injury (IRI) represents a major risk factor of early graft dysfunction and acute/chronic rejection as well as a key obstacle to expanding the donor pool in orthotopic liver transplantation (OLT). Although glucocorticoid receptor (GR) signaling may enhance cytoprotective programs, clinical use of glucocorticoid is limited due to adverse effects, while clinical relevance of GR-facilitated cytoprotection in OLT remains unknown. We aimed to evaluate the significance of hepatic GR in clinical OLT and verify the impact of recombinant human relaxin (rhRLX), which may function as GR agonist in tissue/disease-specific manner...
January 19, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29350608/acute-transverse-myelitis-following-scrub-typhus-a-case-report-and-review-of-the-literature
#4
Hyun-Seung Ryu, Bong Ju Moon, Jae-Young Park, Sang-Deok Kim, Seung-Kwon Seo, Jung-Kil Lee
Context Scrub typhus is an acute febrile disease caused by Orientia tsutsugamushi. The disease can usually involve the lungs, heart, liver, spleen and brain through hematogenous dissemination. However, very rarely, acute transverse myelitis in the spinal cord develops from scrub typhus. We present a case of acute transverse myelitis following scrub typhus with a review of the literature. Findings A 66-year-old male visited a hospital for general myalgia, mild headache, and fever in October. He was noted to have thick, black papule skin on his abdomen, which was highly suggestive of scrub typhus...
January 19, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29350382/risk-factors-for-adverse-outcomes-of-acute-coronary-syndrome-patients-single-center-experience-in-long-term-follow-up-of-treated-patients
#5
Marcin Grabowski, Krzysztof J Filipiak, Grzegorz Opolski, Renata Główczyńska, Monika Gawałko, Paweł Balsam, Andrzej Cacko, Zenon Huczek, Grzegorz Karpiński, Robert Kowalik, Franciszek Majstrak, Janusz Kochman
BACKGROUND: For patients experiencing an acute coronary syndrome (ACS), a crucial time to assess their prognosis and future management is at discharge from hospital. AIM: To identify patients' risk factors of mortality during post-discharge period following an ACS hospitalization. METHODS: We studied 672 consecutive ACS patients hospitalized and discharged alive between 2002 and 2004. The analysis was done in respect of the type of ACS, i...
January 19, 2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29350381/macrophage-migration-inhibitory-factor-knockout-attenuates-endotoxin-induced-cardiac-dysfunction-in-mice
#6
Jie Zhang, Xin Zhang, Yuqi Cui, Lianqun Cui, Peng Zhao
BACKGROUND: The accumulated evidence suggests that macrophage migration inhibitory factor (MIF) plays a key role not only in acute and chronic inflammatory diseases but also in cardiovascular disease. The cardiac dysfunction is related to lipopolysaccharide (LPS) in sepsis. AIM: This study was designed to examine whether MIF mediates LPS-induced cardiac dysfunction and address the mechanisms. METHODS: Echocardiography, immunohistochemical analysis, cell shortening/relengthening and intracellular Ca2+ fluorescence evaluation were performed in whole hearts and isolated cardiomyocytes from C57 and MIF knockout mice treated with or without LPS...
January 19, 2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29349824/reduced-left-ventricular-filling-following-blood-volume-extraction-does-not-result-in-compensatory-augmentation-of-cardiac-mechanics
#7
Rachel Lord, David MacLeod, Keith George, David Oxborough, Rob Shave, Mike Stembridge
An acute non-invasive reduction in preload has been shown to augment cardiac mechanics to maintain stroke volume and cardiac output. Such interventions induce concomitant changes in heart rate (HR), whereas blood volume extraction reduces preload without HR changes. Therefore, the purpose of this study was to determine whether a preload reduction in isolation resulted in augmented stroke volume achieved via enhanced cardiac mechanics. Nine healthy volunteers (4 female, age 29 ± 11 years) underwent echocardiography for the assessment of left ventricular (LV) volumes and mechanics in a supine position at baseline and end-extraction following the controlled removal of 25% of total blood volume (1062 ± 342 ml)...
January 18, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29349760/advancements-and-personalization-of-breast-cancer-treatment-strategies-in-radiation-therapy
#8
Meena S Moran
Significant technologic advances in radiation treatment delivery now allow for more personalized delivery considerations which incorporate individual patient characteristics (such as tumor location and patient anatomy) and more precise delivery in the breast conservation or post-mastectomy setting. The combined advancements with other treatment modalities (i.e., systemic therapy, surgical management) have had direct effects on local-regional management and outcomes such that currently, local-regional relapses after definitive treatment for localized disease are now rarely experienced...
2018: Cancer Treatment and Research
https://www.readbyqxmd.com/read/29348441/sdf1-gradient-associates-with-the-distribution-of-c-kit-cardiac-cells-in-the-heart
#9
Outi Renko, Anna-Maria Tolonen, Jaana Rysä, Johanna Magga, Erja Mustonen, Heikki Ruskoaho, Raisa Serpi
Identification of the adult cardiac stem cells (CSCs) has offered new therapeutic possibilities for treating ischemic myocardium. CSCs positive for the cell surface antigen c-Kit are known as the primary source for cardiac regeneration. Accumulating evidence shows that chemokines play important roles in stem cell homing. Here we investigated molecular targets to be utilized in modulating the mobility of endogenous CSCs. In a four week follow-up after experimental acute myocardial infarction (AMI) with ligation of the left anterior descending (LAD) coronary artery of Sprague-Dawley rats c-Kit+ CSCs redistributed in the heart...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348018/myocardial-inflammation-predicts-remodeling-and-neuroinflammation-after-myocardial-infarction
#10
James T Thackeray, Henri C Hupe, Yong Wang, Jens P Bankstahl, Georg Berding, Tobias L Ross, Johann Bauersachs, Kai C Wollert, Frank M Bengel
BACKGROUND: The local inflammatory tissue response after acute myocardial infarction (MI) determines subsequent healing. Systemic interaction may induce neuroinflammation as a precursor to neurodegeneration. OBJECTIVES: This study sought to assess the influence of MI on cardiac and brain inflammation using noninvasive positron emission tomography (PET) of the heart-brain axis. METHODS: After coronary artery ligation or sham surgery, mice (n = 49) underwent serial whole-body PET imaging of the mitochondrial translocator protein (TSPO) as a marker of activated macrophages and microglia...
January 23, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29347907/blood-lactate-is-a-predictor-of-short-term-mortality-in-patients-with-myocardial-infarction-complicated-by-heart-failure-but-without-cardiogenic-shock
#11
Grunde Gjesdal, Oscar Ö Braun, J Gustav Smith, Fredrik Scherstén, Patrik Tydén
BACKGROUND: Mortality in patients with acute myocardial infarction (AMI) has improved substantially with modern therapy including percutaneous coronary interventions (PCI) but remains high in certain subgroups such as patients presenting with overt cardiogenic shock. However, the risk for AMI in patients presenting acutely with signs of heart failure but without cardiogenic shock is less well described. We aimed to identify risk factors for mortality in AMI patients with heart failure without overt cardiogenic shock...
January 18, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29347870/incorporating-living-from-the-heart-into-medical-education
#12
Miranda K Boggild, Wayne L Gold, Lisa Richardson, Kanae Kinoshita
Medical training poses many challenges to trainees' wellbeing. To address the impact of learning in a high turnover, high volume, acute care setting in the General Internal Medicine Clinical Teaching Unit, the Chief Medical Resident, in this personal account, shares how she and the Spiritual Care Practitioner united to form an innovative partnership. The introduction of the skills of spiritual care practitioners, generally referred to patients and families, to support medical students and residents resulted in the co-development and co-implementation of a unique, reflective, one-hour session...
January 18, 2018: Medical Teacher
https://www.readbyqxmd.com/read/29346763/derepression-of-the-iroquois-homeodomain-transcription-factor-gene-irx3-confers-differentiation-block-in-acute-leukemia
#13
Tim D D Somerville, Fabrizio Simeoni, John A Chadwick, Emma L Williams, Gary J Spencer, Katalin Boros, Christopher Wirth, Eleni Tholouli, Richard J Byers, Tim C P Somervaille
The Iroquois homeodomain transcription factor gene IRX3 is expressed in the developing nervous system, limb buds, and heart, and transcript levels specify obesity risk in humans. We now report a functional role for IRX3 in human acute leukemia. Although transcript levels are very low in normal human bone marrow cells, high IRX3 expression is found in ∼30% of patients with acute myeloid leukemia (AML), ∼50% with T-acute lymphoblastic leukemia, and ∼20% with B-acute lymphoblastic leukemia, frequently in association with high-level HOXA gene expression...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29346535/tricuspid-regurgitation-in-acute-heart-failure-is-there-any-incremental-risk
#14
Diab Mutlak, Jonathan Lessick, Shehrban Khalil, Sergey Yalonetsky, Yoram Agmon, Doron Aronson
Aim: Significant tricuspid regurgitation (TR) is common in heart failure (HF) and portends poor prognosis. We sought to determine whether the poor outcome results from the TR itself, or whether the TR is a surrogate marker of advanced left-sided myocardial or valvular heart disease. Methods and results: We studied 639 patients admitted for acute HF. The relationship between TR severity and the endpoint of readmission for HF or mortality was assessed after adjustment for multiple clinical and echocardiographic parameters...
January 15, 2018: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29346407/relaxin-reverses-inflammatory-and-immune-signals-in-aged-hearts
#15
Brian Martin, Beth Ann Gabris-Weber, Rajiv Reddy, Guillermo Romero, Ansuman Chattopadhyay, Guy Salama
BACKGROUND: 'Healthy' aging drives structural and functional changes in the heart including maladaptive electrical remodeling, fibrosis and inflammation, which lower the threshold for cardiovascular diseases such as heart failure (HF) and atrial fibrillation (AF). Despite mixed results in recent clinical trials, Relaxin-therapy for 2-days could reduce mortality by 37% at 180-days post-treatment, in patients with acute decompensated HF. Relaxin's short life-span (hours) but long-lasting protective actions led us to test the hypothesis that relaxin acts at a genomic level to reverse maladaptive remodeling in aging and HF...
2018: PloS One
https://www.readbyqxmd.com/read/29346235/posttraumatic-stress-in-children-after-injury-the-role-of-acute-pain-and-opioid-medication-use
#16
Aimee K Hildenbrand, Nancy Kassam-Adams, Lamia P Barakat, Kristen L Kohser, Jeffrey A Ciesla, Douglas L Delahanty, Joel A Fein, Lindsay B Ragsdale, Meghan L Marsac
OBJECTIVES: After injury, many children experience posttraumatic stress symptoms (PTSS) that negatively impact recovery. Acute pain and PTSS share neurobiological pathways, and acute dosage of morphine has been linked to reduced PTSS in naturalistic studies. However, the complex interactions between pain, morphine and other opioid use, and PTSS have yet to be investigated in robust pediatric samples.This prospective, longitudinal study examined relationships between acute pain, opioid medications, and PTSS after pediatric injury...
January 16, 2018: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29345584/mechanical-support-in-cardiogenic-shock-complicating-acute-coronary-syndrome-ready-for-prime-time
#17
Guillaume Schurtz, Marc Laine, Clement Delmas, Francois Kerbaul, Etienne Puymirat, Gilles Lemesle, Laurent Bonello
Cardiogenic shock (CS) is a major challenge in current cardiology. Over the last decade, cardiogenic shock mortality has decreased somewhat, but it still remains high, particularly when associated with ischaemic heart disease. The challenges are numerous and include prevention, accurate diagnosis, prompt management and effective therapies to support a failing heart and prevent multi-organ failure. Despite improvements in the care of acute coronary syndrome (ACS), it remains the most common cause of CS. In addition to existing medical therapy, mechanical circulatory support has been proposed for the management of ventricular failure...
January 16, 2018: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/29345431/the-effect-of-diuresis-on-extravascular-lung-water-and-pulmonary-function-in-acute-decompensated-heart-failure
#18
Steven C Chase, Caitlin C Fermoyle, Courtney M Wheatley, Jacob J Schaefer, Lyle J Olson, Bruce D Johnson
AIMS: The effect of extravascular lung water (EVLW) and relationship to functional status as a result of acute decompensated heart failure (ADHF) are not well understood. We sought to quantify changes in clinical variables, EVLW, airway anatomy, spirometry, and diffusing capacity for carbon monoxide before and after treatment for ADHF. METHODS AND RESULTS: Fifteen patients were recruited within 24 h of hospital admission. Spirometry, diffusing capacity for carbon monoxide, and surrogates of EVLW by computed tomography were measured and were then repeated within 24 h of discharge...
January 18, 2018: ESC Heart Failure
https://www.readbyqxmd.com/read/29345426/single-dose-intravenous-iron-in-southeast-asian-heart-failure-patients-a-pilot-randomized-placebo-controlled-study-practice-asia-hf
#19
Tee Joo Yeo, Poh Shuan Daniel Yeo, Farid Abdul Hadi, Timothy Cushway, Kim Yee Lee, Fang Fang Yin, Anne Ching, Ruili Li, Seet Yoong Loh, Shir Lynn Lim, Raymond Ching-Chiew Wong, Bee Choo Tai, Arthur Mark Richards, Carolyn S P Lam
AIMS: Iron deficiency is highly prevalent in Southeast Asians with heart failure (HF) and associated with worse outcomes. This trial aimed to assess the effect of intravenous iron in Southeast Asians hospitalized with decompensated HF. METHODS AND RESULTS: Fifty patients hospitalized for acute decompensated HF, regardless of ejection fraction, with iron deficiency (defined as serum ferritin <300 ng/mL if transferrin saturation is <20%) were randomized to receive either one dose of intravenous ferric carboxymaltose (FCM) 1000 mg or placebo (0...
January 18, 2018: ESC Heart Failure
https://www.readbyqxmd.com/read/29344912/capillary-leak-syndrome-as-a-complication-of-antibody-mediated-rejection-treatment-a-case-report
#20
Juan C Ramirez-Sandoval, Ricardo Varela-Jimenez, Luis E Morales-Buenrostro
We report a case of capillary leak that developed during treatment of antibody-mediated rejection in a kidney transplant recipient. A 53-year-old female transplant recipient experienced an increase in serum creatinine from 1.1 to 1.8 mg/dL. Antibody-mediated rejection was diagnosed by graft biopsy. She was treated with five plasmapheresis sessions (on alternate days with albumin replacement), five doses of immunoglobulin (5 g/dose at 100 mg/kg), a single dose of rituximab (500 mg), and four doses of bortezomib on days 1, 4, 7, and 10 (1...
January 17, 2018: CEN Case Reports
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