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https://www.readbyqxmd.com/read/29455390/utility-of-multiple-rule-out-ct-screening-of-high-risk-atraumatic-patients-in-an-emergency-department-a-feasibility-study
#1
Mia M Pries-Heje, Rasmus B Hasselbalch, Henriette Raaschou, Bijan Rezanavaz-Gheshlagh, Hanne Heebøll, Shazia Rehman, Mariana Kristensen, Erik Henning Andersen, Lisbet Ravn, Michel C Nèmery, Morten N Lind, Thomas Boel, Peter Sommer Ulriksen, Kasper K Iversen
BACKGROUND: Several large trials have evaluated the effect of CT screening based on specific symptoms, with varying outcomes. Screening of patients with CT based on their prognosis alone has not been examined before. For moderate-to-high risk patients presenting in the emergency department (ED), the potential gain from a CT scan might outweigh the risk of radiation exposure. We hypothesized that an accelerated "multiple rule out" CT screening of moderate-to-high risk patients will detect many clinically unrecognized diagnoses that affect change in treatment...
February 17, 2018: Emergency Radiology
https://www.readbyqxmd.com/read/29451501/transitions-in-physiological-coupling-between-heartbeat-and-pulse-across-sleep-stages
#2
Qianli D Y Ma, Changjuan Ji, Huanhuan Xie, Kai Yin, Zhen Ma, Chunhua Bian
The aim of this study is to investigate the coupling behavior between heartbeat and pulse of blood flow at different sleep stages, and to explore the feasibility of using this coupling strength for automatic sleep staging.
 Approach: The electrocardiogram (ECG) and photoplethysmography (PPG) signals are recorded during sleep, and R-wave-to-R-wave intervals (RRI) and Pulse-to-Pulse intervals (PPI) are extracted respectively. The detrended cross-correlation analysis (DCCA) is applied to quantify long-range cross correlations between the RRIs and PPIs across sleep stages...
February 16, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29447081/is-neuropathic-pain-associated-with-cardiac-sympathovagal-activity-changes-in-patients-with-breast-cancer
#3
Hilal Yesil, Sibel Eyigor, Meral Kayıkcıoglu, Ruchan Uslu, Menekse Inbat, Benay Ozbay
Objective Heart rate variability (HRV) is a good indicator of the autonomic nervous system (ANS) activity. A few studies have been conducted recently and have shown a relationship between reduced HRV and conditions that lead to neuropathic pain (NP). In this study, we aimed to investigate whether NP is associated with changes in cardiac sympathovagal activity in patients with breast cancer (BC). Methods We used the Leeds Assessment of Neuropathic Symptoms and Signs (LANSS) questionnaire to evaluate NP in 70 patients with BC...
February 15, 2018: Neurological Research
https://www.readbyqxmd.com/read/29446712/measures-of-sympathetic-and-parasympathetic-autonomic-outflow-from-heartbeat-dynamics
#4
Gaetano Valenza, Luca Citi, J Phillip Saul, Riccardo Barbieri
Reliable and effective non-invasive measures of sympathetic and parasympathetic peripheral outflow are of crucial importance in cardiovascular physiology. Although many techniques have been proposed to take up this long-lasting challenge, none has proposed a satisfying discrimination of the dynamics of the two separate branches. Spectral analysis of heart rate variability is the most currently used technique for such assessment. Despite its widespread use, it has been demonstrated that the subdivision in the low frequency (LF) and high frequency (HF) bands does not fully reflect separate influences of the sympathetic and parasympathetic branches, respectively, mainly due to their simultaneous action in the LF...
February 15, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29445936/pulmonary-arterial-hemodynamic-assessment-by-a-novel-index-in-systemic-sclerosis-patients-pulmonary-pulse-transit-time
#5
Mehmet Dogan, Tolga Han Efe, Tolga Cimen, Cem Ozisler, Mehmet Ali Felekoglu, Ahmet Goktug Ertem, Mehmet Erat, Omer Yiginer, Murat Tulmac
OBJECTIVES: Systemic sclerosis (SSc) is a chronic, inflammatory, and autoimmune connective tissue disease that is associated with vascular lesions, and fibrosis of the skin and visceral organs. Cardiac complications may occur as a secondary effect of SSc as a result of pulmonary arterial hypertension and interstitial lung disease. The objective of this study was to assess whether the pulmonary pulse transit time (pPTT) could serve as a diagnostic marker for pulmonary arterial alterations in patients with SSc, prior to development of pulmonary hypertension...
February 14, 2018: Lung
https://www.readbyqxmd.com/read/29443088/simultaneous-video-eeg-ecg-monitoring-to-identify-neurocardiac-dysfunction-in-mouse-models-of-epilepsy
#6
Vikas Mishra, Nicole M Gautier, Edward Glasscock
In epilepsy, seizures can evoke cardiac rhythm disturbances such as heart rate changes, conduction blocks, asystoles, and arrhythmias, which can potentially increase risk of sudden unexpected death in epilepsy (SUDEP). Electroencephalography (EEG) and electrocardiography (ECG) are widely used clinical diagnostic tools to monitor for abnormal brain and cardiac rhythms in patients. Here, a technique to simultaneously record video, EEG, and ECG in mice to measure behavior, brain, and cardiac activities, respectively, is described...
January 29, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29440008/novel-%C3%AE-actin-gene-mutation-p-ala21val-causing-familial-hypertrophic-cardiomyopathy-myocardial-noncompaction-and-transmural-crypts-clinical-pathologic-correlation
#7
Andrea Frustaci, Alessandro De Luca, Valentina Guida, Tommaso Biagini, Tommaso Mazza, Carlo Gaudio, Claudio Letizia, Matteo Antonio Russo, Nicola Galea, Cristina Chimenti
BACKGROUND: Mutations of α-actin gene (ACTC1) have been phenotypically related to various cardiac anomalies, including hypertrophic cardiomyopathy and dilated cardiomyopathy and left ventricular (LV) myocardial noncompaction. A novel ACTC mutation is reported as cosegregating for familial hypertrophic cardiomyopathy and LV myocardial noncompaction with transmural crypts. METHODS AND RESULTS: In an Italian family of 7 subjects, 4 aged 10 (II-1), 14 (II-2), 43 (I-4) and 46 years (I-5), presenting abnormal ECG changes, dyspnea and palpitation (II-2, I-4, and I-5), and recurrent cerebral ischemic attack (I-5), underwent 2-dimensional echo, cardiac magnetic resonance, Holter monitoring, and next-generation sequencing gene analysis...
February 10, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29439890/brugada-type-pattern-on-electrocardiogram-associated-with-high-dose-loperamide-abuse
#8
Christie Sun, Jessica A Brice, Richard F Clark
BACKGROUND: Loperamide has been increasing in popularity recently for its effects separate from treatment of diarrhea. In large doses or in combination with other agents, it can lead to desirable effects in the central nervous system. However, cardiotoxicity has been reported with its abuse. CASE REPORT: A 49-year-old male who had been chronically abusing loperamide was found to have Brugada-like changes on his electrocardiogram (ECG). He had no other clinical symptoms associated with Brugada syndrome and did not have similar findings on previous ECGs...
February 10, 2018: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29433343/cardiac-specific-expression-of-%C3%A2-h2-r15-mini-dystrophin-normalized-all-ecg-abnormalities-and-the-end-diastolic-volume-in-a-23-m-old-mouse-model-of-duchenne-dilated-cardiomyopathy
#9
Nalinda B Wasala, Jin-Hong Shin, Yi Lai, Yongping Yue, Federica Montanaro, Dongsheng Duan
Heart disease is a major health threat for Duchenne/Becker muscular dystrophy patients and carriers. Expression of a 6 to 8-kb mini-dystrophin gene in the heart holds promise to dramatically change the disease course. However the mini-dystrophin gene cannot be easily studied with adeno-associated virus (AAV) gene delivery because the size of the minigene exceeds AAV packaging capacity. We previously studied cardiac protection of the ∆H2-R19 minigene using the cardiac specific transgenic approach. Although this minigene fully normalized skeletal muscle force, it only partially corrected ECG and heart hemodynamics in dystrophin-null mdx mice that had moderate cardiomyopathy...
February 13, 2018: Human Gene Therapy
https://www.readbyqxmd.com/read/29432131/t-wave-abnormality-as-electrocardiographic-signature-of-myocardial-edema-in-non-st-elevation-acute-coronary-syndromes
#10
Andrea Cardona, Karolina M Zareba, Haikady N Nagaraja, Stephen F Schaal, Orlando P Simonetti, Giuseppe Ambrosio, Subha V Raman
BACKGROUND: T-wave abnormalities are common during the acute phase of non-ST-segment elevation acute coronary syndromes, but mechanisms underlying their occurrence are unclear. We hypothesized that T-wave abnormalities in the presentation of non-ST-segment elevation acute coronary syndromes correspond to the presence of myocardial edema. METHODS AND RESULTS: Secondary analysis of a previously enrolled prospective cohort of patients presenting with non-ST-segment elevation acute coronary syndromes was conducted...
January 26, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29430560/epilepsy-is-associated-with-ventricular-alterations-following-convulsive-status-epilepticus-in-children
#11
Wail Ali, Beth A Bubolz, Linh Nguyen, Danny Castro, Jorge Coss-Bu, Michael M Quach, Curtis E Kennedy, Anne E Anderson, Yi-Chen Lai
Objective: Convulsive status epilepticus can exert profound cardiovascular effects in adults including ventricular depolarization-repolarization abnormalities. Whether status epilepticus adversely affects ventricular electrical properties in children is less understood. Therefore, we sought to characterize ventricular alterations and the associated clinical factors in children following convulsive status epilepticus. Methods: We conducted a 2-year retrospective, case-control study...
December 2017: Epilepsia Open
https://www.readbyqxmd.com/read/29430404/spectrum-of-cardiac-manifestations-and-its-relationship-to-outcomes-in-patients-admitted-with-scrub-typhus-infection
#12
Gunasekaran Karthik, Thomas Isaiah Sudarsan, John Victor Peter, Thambu Sudarsanam, George M Varghese, Paul Kundavaram, Sowmya Sathyendra, Ramya Iyyadurai, Kishore Pichamuthu
AIM: To study the spectrum of cardiac manifestations in scrub typhus infection and assess its relationship to outcomes. METHODS: Demographic data, electrocardiographic (ECG) changes, left ventricular (LV) systolic and diastolic function, myocardial injury (defined as troponin T > 14 pg/mL), and pericardial effusion were documented. Myocarditis was diagnosed when myocardial injury was associated with global LV systolic dysfunction. The relationship between myocarditis and outcomes was assessed using logistic regression analysis and expressed as odds ratio (OR) with 95%CI...
February 4, 2018: World Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/29428463/cardiac-repolarization-evolves-differently-during-the-course-of-benign-and-disabling-multiple-sclerosis
#13
Alma Mikkola, Aku Ojanen, Juha Ek Hartikainen, Anne M Remes, Sakari Simula
BACKGROUND: Cardiac repolarization is modulated by the autonomic nervous system. Even though multiple sclerosis associates with prolonged cardiac repolarization the physiology responsible for the phenomenon remains unknown. OBJECTIVE: To study in longitudinal setting whether the patients with confirmed benign and disabling outcome of relapsing-remitting multiple sclerosis (RRMS) differ in regard to changes of cardiac repolarization. METHODS: Total of 43 patients, 26% with benign (EDSS ≤2 at least 10y after onset symptom) and 74% with disabling (EDSS >2 at least 10y after onset symptom) RRMS, having 12-lead electrocardiogram (ECG) recorded at the time of onset symptom (ECG1) and for follow-up (ECG2), were studied...
February 1, 2018: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29425111/the-safety-of-lipistart-a-medium-chain-triglyceride-based-formula-in-the-dietary-treatment-of-long-chain-fatty-acid-disorders-a-phase-i-study
#14
Anita MacDonald, Rachel Webster, Matthew Whitlock, Adam Gerrard, Anne Daly, Mary Anne Preece, Sharon Evans, Catherine Ashmore, Anupam Chakrapani, Suresh Vijay, Saikat Santra
BACKGROUND: Children with long-chain fatty acid β-oxidation disorders (LCFAOD) presenting with clinical symptoms are treated with a specialist infant formula, with medium chain triglyceride (MCT) mainly replacing long chain triglyceride (LCT). It is essential that the safety and efficacy of any new specialist formula designed for LCFAOD be tested in infants and children. METHODS: In an open-label, 21-day, phase I trial, we studied the safety of a new MCT-based formula (feed 1) in six well-controlled children (three male), aged 7-13 years (median 9 years) with LCFAOD (very long chain acyl CoA dehydrogenase deficiency [VLCADD], n=2; long chain 3-hydroxyacyl CoA dehydrogenase deficiency [LCHADD], n=2; carnitine acyl carnitine translocase deficiency [CACTD], n=2)...
February 9, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29424731/efficacy-of-cardiac-shock-wave-therapy-in-patients-with-stable-angina-the-design-of-randomized-triple-blind-sham-procedure-controlled-study
#15
Evgeny Shkolnik, Greta Burneikaite, Jelena Celutkiene, Mikhail Scherbak, Gitana Zuoziene, Birute Petrauskiene, Ekaterina Trush, Aleksandras Laucevicius, Yury Vasyuk
OBJECTIVE: Despite revascularization and optimal medical treatment (OMT), patients with angina often have a reduced quality of life due to inadequate relief from symptoms. Recent studies have shown that the application of shock waves may reduce angina symptoms and improve quality of life, exercise capacity, and myocardial perfusion due to the stimulation of angiogenesis. However, there is limited evidence due to small, single-arm, single-center studies of low to moderate quality. The purpose of this study is to evaluate the impact of cardiac shock wave therapy (CSWT) on exercise tolerance and angina symptoms in patients with coronary artery disease and objective evidence of myocardial ischemia who cannot undergo traditional revascularization and experience angina despite OMT in comparison to sham procedure...
February 2018: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/29421014/use-of-echocardiography-in-outpatients-with-chest-pain-and-normal-resting-electrocardiograms-referred-to-mayo-clinic-rochester
#16
Raymond J Gibbons, Damita Carryer, Hongfang Liu, Peter A Brady, John Wells Askew, David Hodge, Naser Ammash, Jon O Ebbert, Veronique L Roger
OBJECTIVES: To determine how often unnecessary resting echocardiograms that are "not recommended" by clinical practice guidelines are performed in patients with stable chest pain and normal resting electrocardiograms (ECGs). BACKGROUND: There are scant data to indicate how often Class III recommendations are ignored in clinical practice. PATIENTS AND METHODS: We searched electronically all medical records of referral outpatients seen at Mayo Clinic Rochester from January 1, 2010, through December 31, 2013, to identify patients with stable chest pain and known or suspected coronary artery disease who underwent resting echocardiography and had normal resting ECGs and no other indication for echocardiography...
February 2018: American Heart Journal
https://www.readbyqxmd.com/read/29420570/qt-interval-evaluation-in-primary-percutaneous-coronary-intervention-of-st-segment-elevation-myocardial-infarction-for-prediction-of-myocardial-salvage-index
#17
Andrea Igoren Guaricci, Patrizia Carità, Valentina Lorenzoni, GraziaPia Casavecchia, Mark Rabbat, Riccardo Ieva, Natale Daniele Brunetti, Daniele Andreini, Matteo Di Biase, Giancarlo Marenzi, Antonio Bartorelli, Mauro Pepi, Gianluca Pontone
Assessing the efficacy of revascularization therapy in patients with ST-segment elevation myocardial infarction (STEMI) is extremely important in order to guide subsequent management and assess prognosis. We aimed to determine the relationship between corrected QT-interval (QTc) changes on standard sequential ECG and myocardial salvage index in anterior STEMI patients after successful primary percutaneous coronary intervention. Fifty anterior STEMI patients treated by primary percutaneous coronary intervention underwent quantitative ECG analysis and cardiac magnetic resonance...
2018: PloS One
https://www.readbyqxmd.com/read/29416617/low-dose-radiation-prevents-doxorubicin-induced-cardiotoxicity
#18
Xin Jiang, Yaqiong Hong, Di Zhao, Xinxin Meng, Lijing Zhao, Yanwei Du, Zan Wang, Yan Zheng, Lu Cai, Hongyu Jiang
This study aimed to develop a novel and non-invasive approach, low-dose radiation (LDR, 75 mGy X-rays), to prevent doxorubicin (DOX)-induced cardiotoxicity. BALB/c mice were randomly divided into five groups, Control, LDR (a single exposure), Sham (treated same as LDR group except for irradiation), DOX (a single intraperitoneal injection of DOX at 7.5 mg/kg), and LDR/DOX (received LDR and 72 h later received DOX). Electrocardiogram analysis displayed several kinds of abnormal ECG profiles in DOX-treated mice, but less in LDR/DOX group...
January 2, 2018: Oncotarget
https://www.readbyqxmd.com/read/29416199/rhythm-disturbance-after-myocardial-revascularization
#19
Nedzad Kadric, Enes Osmanovic
Introduction: Heart rhythm disorders are common in the post-operative period following surgical myocardial revascularization (CABG). The incidence of any type of arrhythmia in the postoperative period can go up to 85%. While most are transient and short-term, it does not lead to deterioration of the postoperative course, in a smaller number of patients they can be predictors of various events that result in fatal outcome. Arrhythmias occur suddenly and need to be recognized and reacted in time...
December 2017: Medical Archives
https://www.readbyqxmd.com/read/29407892/the-impact-of-myocardial-bridge-on-coronary-artery-spasm-and-long-term-clinical-outcomes-in-patients-without-significant-atherosclerotic-stenosis
#20
Purumeh Nam, Byoung Geol Choi, Se Yeon Choi, Jae Kyeong Byun, Ahmed Mashaly, Yoonjee Park, Won Young Jang, Woohyeun Kim, Jah Yeon Choi, Eun Jin Park, Jin Oh Na, Cheol Ung Choi, Hong Euy Lim, Eung Ju Kim, Chang Gyu Park, Hong Seog Seo, Dong Joo Oh, Seung-Woon Rha
BACKGROUND AND AIMS: Myocardial bridge (MB) and coronary artery spasm (CAS) can induce a sustained chest pain, acute coronary syndrome (ACS) and even sudden cardiac death. The aim of this study is to evaluate the relationship between MB and CAS and its impact on long-term clinical outcomes. METHODS: A total of 812 patients with MB without significant coronary artery disease (CAD), who underwent acetylcholine (ACH) provocation test, were enrolled. Significant CAS was defined as ≥70% temporary narrowing by ACH test, and MB was defined as the characteristic phasic systolic compression of the coronary artery with a decrease of more than 30% in diameter on the angiogram after intracoronary nitroglycerin infusion...
February 2, 2018: Atherosclerosis
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