keyword
MENU ▼
Read by QxMD icon Read
search

Premature contraction

keyword
https://www.readbyqxmd.com/read/28211974/whole-exome-sequencing-identified-1-base-pair-novel-deletion-in-bcl2-associated-athanogene-3-bag3-gene-associated-with-severe-dilated-cardiomyopathy-dcm-requiring-heart-transplant-in-multiple-family-members
#1
Muhammad Arshad Rafiq, Ayeshah Chaudhry, Melanie Care, Danna A Spears, Chantal F Morel, Robert M Hamilton
Dilated cardiomyopathy (DCM) is characterized by dilation and impaired contraction of the left ventricle or both ventricles. Among hereditary DCM, the genetic causes are heterogeneous, and include mutations encoding cytoskeletal, nucleoskeletal, mitochondrial, and calcium-handling proteins. We report three severely affected males, in a four-generation pedigree, with DCM phenotype who underwent cardiac transplant. Cardiomegaly with marked biventricular dilation and fibrosis were noticeable histopathological findings...
March 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28198998/physical-activity-counseling-in-primary-care-insights-from-public-health-and-behavioral-economics
#2
REVIEW
Kerem Shuval, Tammy Leonard, Jeffrey Drope, David L Katz, Alpa V Patel, Melissa Maitin-Shepard, On Amir, Amir Grinstein
Physical inactivity has reached epidemic proportions in modern society. Abundant evidence points to a causal link between physical inactivity and increased risk for numerous noncommunicable diseases, such as some types of cancer and heart disease, as well as premature mortality. Yet, despite this overwhelming evidence, many individuals do not meet the recommended amount of physical activity required to achieve maximum health benefits. Because primary care physicians' advice is highly regarded, clinicians have the unique opportunity to play an important role in enabling patients to modify their behavior at the point of care with the goal of guiding patients to adopt and maintain an active lifestyle...
February 15, 2017: CA: a Cancer Journal for Clinicians
https://www.readbyqxmd.com/read/28188001/risk-factor-algorithm-used-to-predict-frequent-premature-ventricular-contraction-induced-cardiomyopathy
#3
Kyoung-Min Park, Sung Il Im, Seung-Jung Park, June Soo Kim, Young Keun On
BACKGROUND: Premature ventricular contraction (PVC) QRS duration (QRSd) and high PVCs burden are known as a risk factor of PVC-induced cardiomyopathy (CMP). The aim of this study is to find useful algorithm to predict PVC-induced CMP. METHODS: 180 patients (99 males, 51±14years) with frequent PVCs (>10%/24h), who underwent successful PVC ablation, were studied. Typical PVC-related symptoms were defined as the presence of palpitations or dropped beats during PVC...
February 3, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28182575/response-of-a-physiological-controller-for-ventricular-assist-devices-during-acute-patho-physiological-events-an-in-vitro-study
#4
Anastasios Petrou, Panagiotis Pergantis, Gregor Ochsner, Raffael Amacher, Thomas Krabatsch, Volkmar Falk, Mirko Meboldt, Marianne Schmid Daners
The current paper analyzes the performance of a physiological controller for turbodynamic ventricular assist devices (tVADs) during acute patho-physiological events. The numerical model of the human blood circulation implemented on our hybrid mock circulation was extended in order to simulate the Valsalva maneuver (VM) and premature ventricular contractions (PVCs). The performance of an end-diastolic volume (EDV)-based physiological controller for VADs, named preload responsive speed (PRS) controller was evaluated under VM and PVCs...
February 9, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28180126/providing-a-placental-transfusion-in-newborns-who-need-resuscitation
#5
REVIEW
Anup C Katheria, Melissa K Brown, Wade Rich, Kathy Arnell
Over the past decade, there have been several studies and reviews on the importance of providing a placental transfusion to the newborn. Allowing a placental transfusion to occur by delaying the clamping of the umbilical cord is an extremely effective method of enhancing arterial oxygen content, increasing cardiac output, and improving oxygen delivery. However, premature and term newborns who require resuscitation have impaired transitional hemodynamics and may warrant different methods to actively provide a placental transfusion while still allowing for resuscitation...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28180102/concomitant-right-ventricular-outflow-tract-cryoablation-during-pulmonary-valve-replacement-in-a-patient-with-tetralogy-of-fallot
#6
Hong Ju Shin, Seunghwan Song, Yu Rim Shin, Han Ki Park, Young Hwan Park
A 38-year-old female patient with a history of tetralogy of Fallot repair at 10 years of age underwent pulmonary valve replacement with a mechanical prosthesis, tricuspid annuloplasty, and right ventricular outflow tract cryoablation due to pulmonary regurgitation, tricuspid regurgitation, and multiple premature ventricular contractions with sustained ventricular tachycardia. After surgery, she had an uneventful postoperative course with arrhythmia monitoring. She was discharged without incident, and a follow-up Holter examination showed a decrease in the number of ventricular ectopic beats from 702 to 41...
February 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28176327/women-treated-for-epilepsy-during-pregnancy-outcomes-from-a-nationwide-population-based-cohort-study
#7
Miia Artama, Jemina Ahola, Jani Raitanen, Jukka Uotila, Mika Gissler, Jouko Isojärvi, Anssi Auvinen
INTRODUCTION: Women with epilepsy (WWE) are generally treated as a risk group during pregnancy, but over 90% of pregnant WWE have favorable pregnancies. However, the risk of some pregnancy and delivery complications may be increased among WWE, especially regarding those on antiepileptic drugs. MATERIAL AND METHODS: This nationwide, retrospective population-based cohort study includes WWE who gave birth in Finland during 1987-2008 (n=1737) and the reference cohort of random sample of women without epilepsy (n=4357)...
February 7, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28174411/-primary-lung-cancer-associated-with-dilated-phase-of-hypertrophic-cardiomyopathy-report-of-a-case
#8
Takehiro Sakai, Takao Tsushima, Daisuke Kimura, Ryo Hatanaka, Masahiro Sawada, Yutaka Sato
A 66-year-old man diagnosed as dilated phase of hypertrophic cardiomyopathy (D-HCM) was pointed out an abnormal shadow on routine chest radiography. The patient had past medical history of hypertension, congestive heart failure and chronic obstructive pulmonary disease. The computed tomography showed a 3.8 cm-sized tumor in the left lower lobe of the lung, and histopathological examination revealed squamous cell carcinoma (cT2aN0-1M0, cStage I B-II A). Cardiosonography showed diffuse hypokinesis from basal to mid area, and ejection fraction was 36...
February 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28169055/corrigendum-to-reversal-of-left-ventricular-dysfunction-after-ablation-of-premature-ventricular-contractions-related-parameters-paradoxes-and-exceptions-to-the-rule-int-j-cardiol-222-2016-31-36
#9
Marie Sadron Blaye-Felice, David Hamon, Patrizio Pascale, Anne Rollin, Vanina Bongard, Alexandre Duparc, Pierre Mondoly, Nicolas Derval, Arnaud Denis, Christelle Cardin, Mélèze Hocini, Pierre Jaïs, Etienne Pruvot, Jurg Schlaepfer, Didier Carrié, Michel Galinier, Nicolas Lellouche, Michel Haïssaguerre, Philippe Maury
No abstract text is available yet for this article.
February 3, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28166960/effects-of-zd7288-a-hyperpolarization-activated-cyclic-nucleotide-gated-hcn-channel-blocker-on-term-pregnant-rat-uterine-contractility-in%C3%A2-vitro
#10
Mohammed Alotaibi, Karima Kahlat, Taoufik Nedjadi, Laiche Djouhri
The uterus is a myogenic organ that is able to produce discrete spontaneous action potentials and contractions without any stimuli. Myometrial excitability is governed by ion channels including Ca(+2) and K(+) channels, but whether or not other channels such as hyperpolarization-activated cyclic nucleotide-gated (HCN) channels, which play an important role in regulating cellular excitability, are also involved has not been reported in uterine smooth muscles. The aim of the present study was to examine whether blocking HCN channels with a specific blocker ZD7288 would modulate the uterine contractility in a rat model...
March 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28160298/fluoroless-catheter-ablation-of-cardiac-arrhythmias-a-5-year-experience
#11
Mansour Razminia, M Cameron Willoughby, Hany Demo, Hesam Keshmiri, Theodore Wang, Oliver J D'Silva, Terry A Zheutlin, Hakeem Jibawi, Paul Okumale, Richard F Kehoe
BACKGROUND: Catheter ablations have been traditionally performed with the use of fluoroscopic guidance, which exposes the patient and staff to the inherent risks of radiation. We have developed techniques to eliminate the use of fluoroscopy during cardiac ablations and have been performing completely fluoroless catheter ablations on our patients for over 5 years. METHODS: We present a retrospective analysis of the safety, efficacy, and feasibility data from 500 consecutive patients who underwent nonfluoroscopic catheter ablation, targeting a total of 639 arrhythmias, including atrioventricular reciprocating tachycardia (AVRT), atrioventricular nodal reentrant tachycardia (AVNRT), atrial tachycardia (AT), atrial fibrillation (AF), premature ventricular contractions (PVC), and ventricular tachycardia (VT)...
February 3, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28113292/non-invasive-personalisation-of-a-cardiac-electrophysiology-model-from-body-surface-potential-mapping
#12
Sophie Giffard-Roisin, Thomas Jackson, Lauren Fovargue, Jack Lee, Herve Delingette, Reza Razavi, Nicholas Ayache, Maxime Sermesant
Modelling cardiac electrophysiology (EP) can help understand pathologies and predict the response to therapies. Moreover, estimating patient-specific parameters of the EP model is crucial to obtain personalised information. The novelty of this paper is to use non-invasive data (body surface potential mapping, BSPM) in order to personalise the main parameters of a cardiac EP model for predicting different pacing conditions. First, an efficient forward model is proposed, coupling the Mitchell- Schaeffer transmembrane potential model with a current dipole formulation...
November 16, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28099609/premature-ventricular-contractions-associated-with-isotretinoin-use
#13
Sevil Alan, Betül Ünal, Aytül Yildirim
Isotretinoin has been considered a unique drug for acne treatment. However, it is associated with numerous adverse effects. Isotretinoin can trigger premature ventricular contractions. This report describes a 33-year-old-woman who presented with palpitations for 1 week while undergoing 1-month isotretinoin treatment for mild-moderate facial acne. An electrocardiogram and Holter monitoring showed premature ventricular contractions during isotretinoin (Roaccutane, Roche) treatment. Isotretinoin-related premature ventricular contractions were strongly suggested in this case due to the existence of documented premature ventricular contractions on electrocardiograms and the disappearance of these premature ventricular contractions two weeks after termination of the treatment To the authors' knowledge, there has been 1 reported case of premature ventricular contractions linked to isotretinoin use; this report describes a second such case...
November 2016: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28096374/phylogenetic-analysis-of-the-human-antibody-repertoire-reveals-quantitative-signatures-of-immune-senescence-and-aging
#14
Charles F A de Bourcy, Cesar J Lopez Angel, Christopher Vollmers, Cornelia L Dekker, Mark M Davis, Stephen R Quake
The elderly have reduced humoral immunity, as manifested by increased susceptibility to infections and impaired vaccine responses. To investigate the effects of aging on B-cell receptor (BCR) repertoire evolution during an immunological challenge, we used a phylogenetic distance metric to analyze Ig heavy-chain transcript sequences in both young and elderly individuals before and after influenza vaccination. We determined that BCR repertoires become increasingly specialized over a span of decades, but less plastic...
January 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28079870/impact-of-l-carnitine-supplementation-on-metabolic-profiles-in-premature-infants
#15
R H Clark, D H Chace, A R Spitzer
OBJECTIVE: To describe the influence that of l-carnitine supplementation on acylcarnitine (AC) profiles and hospital outcomes in premature infants. STUDY DESIGN: This study is a secondary analysis of previously reported work. Metabolic profiles were obtained using standard newborn techniques on infants born between 23 and 31 completed weeks of gestation. The profiles were drawn within the first 24 h after birth and on approximately days 7, 28 and 42 of life, or at the time of discharge...
January 12, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28061370/fine-particulate-air-pollution-and-premature-ventricular-contractions-the-reasons-for-geographic-and-racial-differences-in-stroke-regards-study
#16
Wesley T O'Neal, Elsayed Z Soliman, Jimmy T Efird, Virginia J Howard, George Howard, Leslie A McClure
BACKGROUND: It is unknown if higher levels of ambient particulate matter (PM) exposure increase the risk for premature ventricular contractions (PVC) in a population-based study of men and women, and if this relationship varies by race or sex. METHODS: We examined the association of PM <2.5µm in diameter (PM2.5) concentration with PVCs in 26,121 (mean age=64±9.3 years; 55% female; 41% black) participants from the REasons for Geographic And Racial Differences in Stroke (REGARDS) study...
January 3, 2017: Environmental Research
https://www.readbyqxmd.com/read/28058808/repeatability-of-ectopic-beats-from-48-hr-ambulatory-electrocardiography-the-atherosclerosis-risk-in-communities-aric-study
#17
Michelle L Meyer, Elsayed Z Soliman, Lisa M Wruck, Thomas H Mosley, Lynne E Wagenknecht, Anna K Poon, Eric A Whitsel, Alvaro Alonso, Gerardo Heiss, Laura R Loehr
BACKGROUND: The purpose of this study was to characterize the repeatability of ectopic beats, defined by premature atrial contractions (PACs) and premature ventricular contractions (PVCs), on ambulatory electrocardiogram (aECG) monitoring and evaluate the effect of length of aECG monitoring on the repeatability estimates. METHODS: This analysis includes 95 randomly selected participants from the Atherosclerosis Risk in Communities Study (ARIC; 2011-2013). The participants wore a Holter monitor for two, 48-hr periods separated by a mean of 38 days following an identical, standardized protocol...
January 6, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28049863/the-effect-of-acute-stress-on-esophageal-motility-and-gastroesophageal-reflux-in-healthy-humans
#18
Hong Sub Lee, Chung Kyun Noh, Kwang Jae Lee
Background/Aims: Little research has been done to evaluate the effect of stress in exacerbating the symptoms associated with gastroesophageal reflux (GER). We aimed to investigate the effect of acute stress on esophageal motility and GER parameters in healthy volunteers. Methods: A total of 10 (M:F = 8:2, median age 34 years-old) healthy volunteers without any recurrent gastrointestinal symptoms participated in this study. They underwent esophageal high-resolution manometry with 10 wet swallows (Experiment I) and esophageal impedance-pH monitoring (Experiment II) in the basal period and in the stress period...
January 30, 2017: Journal of Neurogastroenterology and Motility
https://www.readbyqxmd.com/read/28032935/a-double-ventricular-response-through-dual-av-nodal-pathways-can-mimic-a-premature-ventricular-contraction
#19
Taihei Itoh, Takumi Yamada
No abstract text is available yet for this article.
December 29, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28029462/-prediction-of-preterm-delivery-in-symptomatic-women-preterm-labor
#20
G Benoist
OBJECTIVES: To evaluate the predictors of spontaneous preterm birth in case of preterm labor. MATERIALS AND METHODS: Literature search in Medline and Cochrane databases and recommendations of international societies. Selection of studies in symptomatic women (with preterm labor). RESULTS: Preterm labor is defined as a clinical situation occurring between 22 and 36 weeks + 6 days, in which cervical changes are observed associated with uterine contractions, evolving spontaneously or not to preterm delivery (Professional consensus)...
October 28, 2016: Journal de Gynécologie, Obstétrique et Biologie de la Reproduction
keyword
keyword
80144
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"