keyword
MENU ▼
Read by QxMD icon Read
search

Atrial and ventricles pressure

keyword
https://www.readbyqxmd.com/read/29770201/recent-advances-in-managing-septal-defects-ventricular-septal-defects-and-atrioventricular-septal-defects
#1
REVIEW
P Syamasundar Rao, Andrea D Harris
This review discusses the management of ventricular septal defects (VSDs) and atrioventricular septal defects (AVSDs). There are several types of VSDs: perimembranous, supracristal, atrioventricular septal, and muscular. The indications for closure are moderate to large VSDs with enlarged left atrium and left ventricle or elevated pulmonary artery pressure (or both) and a pulmonary-to-systemic flow ratio greater than 2:1. Surgical closure is recommended for large perimembranous VSDs, supracristal VSDs, and VSDs with aortic valve prolapse...
2018: F1000Research
https://www.readbyqxmd.com/read/29756230/the-relationship-between-pulmonary-artery-wedge-pressure-and-pulmonary-blood-volume-derived-from-contrast-echocardiography-a-proof-of-concept-study
#2
Ken Monahan, Daniel Lenihan, Evan L Brittain, Linda Saliba, Robert N Piana, Leslie L Robison, Melissa M Hudson, Gregory T Armstrong
BACKGROUND: Pulmonary transit time (PTT) obtained from contrast echocardiography is a marker of global cardiopulmonary function. Pulmonary blood volume (PBV), derived from PTT, may be a noninvasive surrogate for left-sided filling pressures, such as pulmonary artery wedge pressure (PAWP). We sought to assess the relationship between PBV obtained from contrast echocardiography and PAWP. METHODS: Participants were adult survivors of childhood cancer that had contrast echocardiography performed nearly simultaneously with right-heart catheterization...
May 14, 2018: Echocardiography
https://www.readbyqxmd.com/read/29753654/correlation-of-arterial-stiffness-with-left-atrial-volume-index-and-left-ventricular-mass-index-in-young-adults-evaluation-by-coronary-computed-tomography-angiography
#3
Kazuhiro Osawa, Rine Nakanishi, Toru Miyoshi, Sina Rahmani, Indre Ceponiene, Negin Nezarat, Mitsuru Kanisawa, Hong Qi, Eranthi Jayawardena, Nicholas Kim, Hiroshi Ito, Matthew J Budoff
BACKGROUND: Increased arterial stiffness is reportedly associated with cardiac remodelling, including the left atrium and left ventricle, in middle-aged and older adults. However, little is known about this association in young adults. METHODS: In total, 73 patients (44 (60%) men) aged 25 to 45 years with suspected coronary artery disease were included in the analysis. The left atrial volume index (LAVI), left ventricular volume index (LVVI), and left ventricular mass index (LVMI) were measured using coronary computed tomography angiography (CCTA)...
April 26, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29752563/alamandine-attenuates-hypertension-and-cardiac-hypertrophy-in-hypertensive-rats
#4
Chi Liu, Chuan-Xi Yang, Xi-Ru Chen, Bo-Xun Liu, Yong Li, Xiao-Zhi Wang, Wei Sun, Peng Li, Xiang-Qing Kong
Oral administration of the peptide alamandine has antihypertensive and anti-fibrotic effects in rats. This work aimed to determine whether subcutaneous alamandine injection would attenuate hypertension and cardiac hypertrophy, and improve the function of a major target of hypertension-related damage, the left ventricle (LV), in spontaneously hypertensive rats (SHRs). This was examined in vivo in SHRs and normotensive rats subjected to 6-week subcutaneous infusion of alamandine or saline control, and in vitro in H9C2-derived and primary neonatal rat cardiomyocytes treated with angiotensin (Ang) II to model cardiac hypertrophy...
May 12, 2018: Amino Acids
https://www.readbyqxmd.com/read/29697139/increased-cardiac-stiffness-is-associated-with-autonomic-dysfunction-in-patients-with-temporal-lobe-epilepsy
#5
Guilherme L Fialho, Peter Wolf, Roger Walz, Katia Lin
Autonomic dysfunction is linked to sudden death regardless of the presence of structural heart disease. The pathway from autonomic dysfunction to sudden death is not fully understood, but myocardial sympathetic stimulation leading to arrhythmia and/or cardiac fibrosis might play a role. Our goal was to evaluate cardiac stiffness by echocardiography and its association with clinical, structural, and autonomic variables in people with epilepsy (PWE) compared to healthy controls. A 12-lead electrocardiogram, treadmill testing, and transthoracic echocardiography from 30 patients with temporal lobe epilepsy (TLE) without any known cardiovascular disorders were compared to 30 individuals without epilepsy matched by sex, age, and body mass index...
April 26, 2018: Epilepsia
https://www.readbyqxmd.com/read/29685148/recurrent-inhibition-of-mitochondrial-complex-iii-induces-chronic-pulmonary-vasoconstriction-and-glycolytic-switch-in-the-rat-lung
#6
Olga Rafikova, Anup Srivastava, Ankit A Desai, Ruslan Rafikov, Stevan P Tofovic
BACKGROUND: Pulmonary arterial hypertension (PAH) is a fatal disease; however, the mechanisms directly involved in triggering and the progression of PAH are not clear. Based on previous studies that demonstrated a possible role of mitochondrial dysfunction in the pathogenesis of PAH, we investigated the effects of chronic inhibition of mitochondrial function in vivo in healthy rodents. METHODS: Right ventricle systolic pressure (RVSP) was measured in female rats at baseline and up to 24 days after inhibition of mitochondrial respiratory Complex III, induced by Antimycin A (AA, 0...
April 23, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29673050/postnatal-persistence-of-fetal-cardiovascular-remodeling-associated-with-assisted-reproductive-technologies-a-cohort-study
#7
Brenda Valenzuela-Alcaraz, Audrey Serafini, Alvaro Sepulveda-Martínez, Gemma Casals, Merida Rodríguez-López, Laura Garcia-Otero, Monica Cruz-Lemini, Bart Bijnens, Marta Sitges, Juan Balasch, Eduard Gratacos, Fatima Crispi
OBJECTIVE: to assess the postnatal persistence of fetal cardiovascular remodeling associated to assisted reproductive technologies (ART), in children at 3 years of age. DESIGN: A cohort study of children conceived by ART. SETTING: Maternal-Fetal Medicine Unit, Hospital Clinic Barcelona, Spain. POPULATION SAMPLE: 80 singleton pregnancies conceived by ART and 80 spontaneously conceived (controls) followed from fetal life up to childhood...
April 19, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29669970/prognostic-relevance-of-liver-stiffness-assessed-by-transient-elastography-in-patients-with-acute-decompensated-heart-failure
#8
Yuki Saito, Mahoto Kato, Koichi Nagashima, Koyuru Monno, Yoshihiro Aizawa, Yasuo Okumura, Naoki Matsumoto, Mitsuhiko Moriyama, Atsushi Hirayama
BACKGROUND: Acute decompensated heart failure (ADHF) is often accompanied by liver congestion through increased right atrial pressure (RAP). Liver stiffness (LS) assessed non-invasively using transient elastography is related to increased RAP and liver congestion in patients with general HF. We investigated the relationship of LS with clinical and echocardiographic variables and outcomes in patients with ADHF.Methods and Results:The subjects were 105 patients with ADHF admitted to hospital between October 2016 and June 2017...
April 17, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29664959/contemporary-survival-of-patients-with-pulmonary-arterial-hypertension-and-congenital-systemic-to-pulmonary-shunts
#9
Chodchanok Vijarnsorn, Kritvikrom Durongpisitkul, Paweena Chungsomprasong, Densiri Bositthipichet, Salisa Ketsara, Yuttapon Titaram, Prakul Chanthong, Supaluck Kanjanauthai, Jarupim Soongswang
OBJECTIVE: To compare survival of patients with newly diagnosed pulmonary arterial hypertension associated with congenital heart disease (PAH-CHD) according to various clinical classifications with classifications of anatomical-pathophysiological systemic to pulmonary shunts in a single-center cohort. METHODS: All prevalent cases of PAH-CHD with hemodynamic confirmation by cardiac catheterization in 1995-2015 were retrospectively reviewed. Patients who were younger than three months of age, or with single ventricle following surgery were excluded...
2018: PloS One
https://www.readbyqxmd.com/read/29663123/creation-of-a-restrictive-atrial-communication-in-heart-failure-with-preserved-and-mid-range-ejection-fraction-effective-palliation-of-left-atrial-hypertension-and-pulmonary-congestion
#10
Anna Bauer, Markus Khalil, Monika Lüdemann, Jürgen Bauer, Anoosh Esmaeili, Roberta De-Rosa, Norbert F Voelkel, Hakan Akintuerk, Dietmar Schranz
BACKGROUND: Left atrial decompression is considered in patients with symptomatic heart failure with preserved ejection fraction (HFpEF). We aimed to evaluate the feasibility and efficacy of transcatheter generation of a restrictive atrial septum communication to manage HFpEF from infancy to adulthood with cardiomyopathy and congenital heart defect. METHODS AND RESULTS: From June 2009 to December 2016, 24 patients (50% with an age less than 16 years) with HFpEF were palliated; NYHA-/Ross class IV (n = 10); median systemic ventricular ejection fraction 64 (range 35-78) %...
April 16, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29658869/predictive-model-for-secundum-atrial-septal-defect-closure-with-pulmonary-artery-hypertension-in-adult-when-to-close
#11
Supomo Supomo, Adika Zhulhi Arjana, Handy Darmawan
BACKGROUND: Secundum atrial septal defect (SASD) closure is contraindicated in the presence of severe pulmonary artery hypertension (PAH). However, there is no consensus on the threshold of severe PAH, in terms of mean pulmonary artery pressure (mPAP), which would contraindicate for defect closure surgery in adults. Furthermore, PAH can persist, or even increase in severity, after the closure. The aim of this study was to produce a predictive model correlating mPAP in adult SASD patients with PAH after defect closure surgery...
March 16, 2018: Heart Surgery Forum
https://www.readbyqxmd.com/read/29642696/periprocedural-and-perioperatory-management-of-patients-with-tricuspid-valve-disease
#12
Fabrizio Monaco, Ambra L DI Prima, Monica DE Luca, Gaia Barucco, Alberto Zangrillo
Tricuspid regurgitation (TR) is a common valvular lesion which may affect morbidity and mortality. It can be related to an intrinsic abnormality of the tricuspid valve leaflets (organic) or secondary to annular dilatation (functional). Often organic and functional TR coexist in the same patient. A long standing TR is associated with ascites, congestive hepatopathy, peripheral edema, renal failure, and abdominal fullness which significantly affect the outcome. In particular, the perioperative course may be complicated due to both the presence of comorbidities and the development of a severe postoperative right ventricle (RV) dysfunction...
April 11, 2018: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29629260/acute-right-ventricular-failure-postintubation-in-a-mitral-stenosis-patient
#13
Sridhar Reddy Musuku, Saroj Pani, John Cagino
Mitral stenosis (MS) is prevalent in 0.02-0.2% of the population in developed countries. The pathophysiology of MS results in elevated left atrial pressures and over-time results in pulmonary hypertension (HTN) which ultimately affects the right ventricle. In addition, MS restricts the diastolic filling of the left ventricle. Therefore, during induction patients with MS are limited by their ability to increase cardiac output by increasing stroke volume. Anesthesia goals in severe MS are to avoid sudden changes in heart rate, as well as systemic and pulmonary artery pressures...
January 2018: Journal of Cardiovascular Echography
https://www.readbyqxmd.com/read/29622977/clinical-and-laboratory-characteristics-of-short-term-mortality-in-egyptian-patients-with-acute-heart-failure
#14
Ahmad Tageldien Abdellah, Alaa Desouky Mohamed, Hamdy Ali Hendawi, Magdi Ali Omera
Objective: To identify the clinical and laboratory predictors of short-term mortality in patients with acute heart failure (AHF). Subjects and methods: We conducted a prospective, single center study on 120 consecutive patients presented with acute heart failure to the emergency department. All patients had clinical, laboratory, electrocardiographic and echocardiographic evaluation. Short-term mortality was reported within 30 days of presentation. Results: Mean age was 59...
September 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
https://www.readbyqxmd.com/read/29600658/-protective-effect-of-dendrobium-candidum-on-isoproterenol-induced-cardiac-hypertrophy-in-rats
#15
Xiao-Chun Xiao, Wei-Hong Chen, Yuan-Yuan Cao, Yong-Jun Lou, Yuan Liu, Jin Wang, Xu-Feng Zhai, Nian-Sheng Li, Ying Li
To study the effect and mechanism of Dendrobium candidum on isoproterenol-induced myocardial hypertrophy in rats, 60 healthy SD rats(30 males and 30 females) were randomly divided into 5 groups(12 in each group): normal group, model group, three D. candidum preventive administration groups(0.09, 0.18, 1.1 g·kg⁻¹). Except for the normal group, rats of other groups were injected back subcutaneously with ISO(5 mg·kg⁻¹) for 10 consecutive days. At the same time, preventive administration groups began to give different doses of the sample for 30 days and model group began to give normal saline...
February 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29600485/diffuse-fibrosis-is-common-in-the-left-but-not-in-the-right-ventricle-in-patients-with-transposition-of-the-great-arteries-late-after-atrial-switch-operation
#16
Nerejda Shehu, Christian Meierhofer, Daniel Messroghli, Naira Mkrtchyan, Stefan Martinoff, Peter Ewert, Heiko Stern
In adult patients with transposition of the great arteries (TGA) late after atrial switch operation (AtSO), each of the ventricles is faced with a profoundly different pressure regimen from the one they are meant to support in normal conditions. The extent of diffuse fibrosis of the right ventricle (RV) and left ventricle (LV) in these patients remains incompletely investigated. Aim of this study was to quantify the degree of fibrosis of the unloaded LV and of the overloaded RV by determining the myocardial extracellular volume (ECV) with non-invasive techniques as T1 mapping...
March 29, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29570509/impact-of-obstructive-sleep-apnea-on-cardiac-organ-damage-in-patients-with-acute-ischemic-stroke
#17
Paola Mattaliano, Carolina Lombardi, Davide Sangalli, Andrea Faini, Barbara Corrà, Laura Adobbati, Giovanna Branzi, Davide Mariani, Vincenzo Silani, Gianfranco Parati
BACKGROUND AND PURPOSE: Both obstructive sleep apnea (OSA) and cardiac organ damage have a crucial role in acute ischemic stroke. Our aim is to explore the relationship between OSA and cardiac organ damage in acute stroke patients. METHODS: A total of 130 consecutive patients with acute ischemic stroke were enrolled. Patients underwent full multichannel 24-h polysomnography for evaluation of OSA and echocardiography to evaluate left ventricle (LV) mass index (LV mass/BSA, LV mass/height), thickness of interventricular septum (IVS) and posterior wall (LVPW), LV ejection fraction and left atrium enlargement...
March 22, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29570208/sheep-can-be-used-as-animal-model-of-regional-myocardial-remodelling-and-controllable-work
#18
Jürgen Duchenne, Piet Claus, Efstathios D Pagourelias, Razvan O Mada, Joeri Van Puyvelde, Kathleen Vunckx, Eric Verbeken, Olivier Gheysens, Filip Rega, Jens-Uwe Voigt
BACKGROUND: A-V-sequential pacing has been shown to induce reversible conduction delay and subsequent asymmetric remodelling of the left ventricle (LV) in dogs and pigs. Both species have disadvantages in animal experiments. Therefore aim of this study focusses at developing a more feasible and easy-to-use animal model in sheep. METHODS: Dual-chamber pacing (DDD) pacemakers (right atrium + right ventricular free wall) were surgically implanted in 13 sheep. All animals underwent 8 weeks of chronic rapid pacing at 180 bpm...
March 23, 2018: Cardiology Journal
https://www.readbyqxmd.com/read/29538624/improved-cardiovascular-function-in-old-mice-after-n-acetyl-cysteine-and-glycine-supplemented-diet-inflammation-and-mitochondrial-factors
#19
Katarzyna A Cieslik, Rajagopal V Sekhar, Alejandro Granillo, Anilkumar Reddy, Guillermo Medrano, Celia Pena Heredia, Mark L Entman, Dale J Hamilton, Shumin Li, Erin Reineke, Anisha A Gupte, Aijun Zhang, George E Taffet
Metabolic, inflammatory and functional changes occur in cardiovascular aging which may stem from oxidative stress and be remediable with antioxidants. Glutathione, an intracellular antioxidant, declines with aging, and supplementation with glutathione precursors, N-Acetyl Cysteine (NAC) and Glycine (Gly), increases tissue glutathione. Thirty month-old mice were fed diets supplemented with NAC or NAC+Gly and, after seven weeks, cardiac function and molecular studies were performed.The NAC+Gly supplementation improved diastolic function, increasing peak early filling velocity, and reducing relaxation time, left atrial volume, and left ventricle end diastolic pressure...
March 10, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29521112/evaluation-of-the-right-ventricle-by-echocardiography-particularities-and-major-challenges
#20
Michael Dandel, Roland Hetzer
Compared with the left ventricle (LV), the right ventricle (RV) is less suited for evaluation by echocardiography (ECHO). Nevertheless, RV ECHO-assessment has currently emerged as an important diagnostic tool with meaningful prognostic value and essential contribution to therapeutic decisions. Although significant progress has been made, including generation of higher-quality normative data, validation of several two-dimensional measurements and improvements in three-dimensional ECHO-techniques, many challenges in RV ECHO-assessment still persist...
April 2018: Expert Review of Cardiovascular Therapy
keyword
keyword
100662
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"