keyword
MENU ▼
Read by QxMD icon Read
search

Systolic function

keyword
https://www.readbyqxmd.com/read/28535630/-analysis-of-risk-factors-and-prognosis-for-bleeding-in-very-old-male-patients-with-stage-5-chronic-kidney-disease
#1
X Shen, Q G Ao, Q L Cheng, S Liu, J H Zhao, Q Ma, G Yang, Y Liu
Objective: To analyze the risk factors and prognosis of bleeding in very old male patients with stage 5 chronic kidney disease (CKD). Methods: The clinical data of 143 very old male patients with stage 5 CKD was retrospectively analyzed. According to the occurrence of bleeding, the patients were divided into two groups including the hemorrhage group and the non-hemorrhage group. The history of diseases, renal function, blood cell parameters and coagulation index were compared and analyzed between the two groups...
May 16, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28534690/decreased-left-atrial-myocardial-strain-in-patients-with-suboptimal-blood-pressure-control
#2
Xiao-Jing Chen, Chen Chen, Yu-Jia Liang, Xi-Lian Gao, Jing Jiang, Yu Kang, Yu-Cheng Chen, Qing Zhang, Zhi Zeng
BACKGROUND: Suboptimal blood pressure (BP) control is commonly observed in patients receiving antihypertensive agents, but the relationship between uncontrolled BP and left atrial (LA) impairment remains unknown. METHODS: This study enrolled 279 hypertensive patients who had been medicated, as well as 85 matched normal controls. The BP of systolic <140 mmHg and diastolic<90 mmHg was defined as optimal (HT1 group, n=146), otherwise as suboptimal BP control (HT2 group, n = 133)...
May 23, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28533740/correlation-of-ventricular-arrhythmogenesis-with-neuronal-remodeling-of-cardiac-postganglionic-parasympathetic-neurons-in-the-late-stage-of-heart-failure-after-myocardial-infarction
#3
Dongze Zhang, Huiyin Tu, Chaojun Wang, Liang Cao, Robert L Muelleman, Michael C Wadman, Yu-Long Li
Introduction: Ventricular arrhythmia is a major cause of sudden cardiac death in patients with chronic heart failure (CHF). Our recent study demonstrates that N-type Ca(2+) currents in intracardiac ganglionic neurons are reduced in the late stage of CHF rats. Rat intracardiac ganglia are divided into the atrioventricular ganglion (AVG) and sinoatrial ganglion. Only AVG nerve terminals innervate the ventricular myocardium. In this study, we tested the correlation of electrical remodeling in AVG neurons with ventricular arrhythmogenesis in CHF rats...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28533317/cardiovascular-toxicity-of-illicit-anabolic-androgenic-steroid-use
#4
Aaron L Baggish, Rory B Weiner, Gen Kanayama, James I Hudson, Michael T Lu, Udo Hoffmann, Harrison G Pope
BACKGROUND: Millions of individuals have used illicit anabolic-androgenic steroids (AAS), but the long-term cardiovascular associations of these drugs remain incompletely understood. METHODS: Using a cross-sectional cohort design, we recruited 140 experienced male weightlifters 34 to 54 years of age, comprising 86 men reporting ≥2 years of cumulative lifetime AAS use and 54 nonusing men. Using transthoracic echocardiography and coronary computed tomography angiography, we assessed 3 primary outcome measures: left ventricular (LV) systolic function (left ventricular ejection fraction), LV diastolic function (early relaxation velocity), and coronary atherosclerosis (coronary artery plaque volume)...
May 23, 2017: Circulation
https://www.readbyqxmd.com/read/28533073/the-impact-of-sevoflurane-on-coupling-of-the-left-ventricular-to-systemic-vasculature-in-rats-with-chronic-pulmonary-hypertension
#5
Lu Wang, Hui Luo, Gang Qin, Yanan Cao, Xiaowei Gao, Zhong Zhang, Zhi Ye, Junjie Zhang, Qulian Guo, E Wang
OBJECTIVES: The relationship between left ventricular function and afterload has not been investigated as much as the right ventricular function under chronic pulmonary hypertension (PH) during anesthesia. This study was designed to investigate effects of sevoflurane on the intrinsic coupling relationship between the left ventricle and systemic vasculature in the presence of PH. DESIGN: A randomized, controlled study. SETTING: University hospital...
February 13, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28532772/echocardiographic-predictors-for-worsening-of-six-minute-walk-distances-in-patients-with-systemic-sclerosis-scleroderma
#6
Kenya Kusunose, Hirotsugu Yamada, Susumu Nishio, Yukina Hirata, Hiromitsu Seno, Yoshihito Saijo, Takayuki Ise, Takeshi Tobiume, Koji Yamaguchi, Shusuke Yagi, Takeshi Soeki, Tetsuzo Wakatsuki, Masataka Sata
Change in 6-minute walk distance (6MWD) has been used as a clinical marker in pulmonary hypertension. Determinants and worsening of 6MWD remain a matter of debate because nonpulmonary factors have an impact on the 6MWD. We hypothesized that future reduction of 6MWD in patients with systemic sclerosis (SSc) was more closely associated with cardiac dysfunction. We prospectively performed standard clinical and echocardiographic evaluations in SSc patients with the 6-minute walk test at enrollment. Features associated with the 6MWD were sought in a multiple linear regression analysis and compared using standardized β...
April 26, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28532770/changes-in-loop-diuretic-dose-and-outcome-after-cardiac-resynchronization-therapy-in-patients-with-heart-failure-and-reduced-left-ventricular-ejection-fractions
#7
Pieter Martens, Frederik H Verbrugge, Petra Nijst, Matthias Dupont, Wilfried Mullens
Cardiac resynchronization therapy (CRT) improves cardiac hemodynamics. Therefore, the maintenance dose of loop diuretic therapy might be reduced. Consecutive patients who underwent CRT (n = 648) were retrospectively evaluated. Loop diuretic dose was recorded at baseline before implantation and 6 months later with patients classified into 4 groups: (1) no loop diuretic, (2) down-titration, (3) unchanged dose, and (4) up-titration. Afterward total loop diuretic exposure was calculated. Renal function trajectories were evaluated as the difference between implantation and censoring serum creatinine (Cr) value...
April 27, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28532240/ventricular-assist-devices-for-the-failing-univentricular-circulation
#8
Edward Buratto, William Y Shi, Xin Tao Ye, Igor E Konstantinov
Improved survival following single ventricle palliation has led to a large population of patients with a Fontan circulation, many of whom will eventually develop Fontan failure. Many of these patients will require heart transplantation. However, more than half of these patients have Fontan failure despite preserved ventricular function. Increasing experience with ventricular assist devices (VAD) in children has paved the way for VAD support in those with failing univentricular circulation. Areas covered: The use of VADs to support the failing univentricular circulation is a relatively new concept...
May 22, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28532169/impact-of-metoprolol-treatment-on-cardiac-function-and-exercise-tolerance-in-heart-failure-patients-with-neuropsychiatric-disorders
#9
Jingjing Huang, Ran Zhang, Xuelu Liu, Yong Meng
OBJECTIVE: To investigate the impact of neuropsychiatric disorders on the effect of metoprolol on cardiac and motor function in chronic heart failure (CHF) patients. METHODS: From February 2013 to April 2016, CHF patients with clinical mental disorders, received metoprolol (23.75 or 47.5 mg, once daily, p.o) at the Second Affiliated Hospital of Kunming Medical University. Mental status was confirmed by means of hospital anxiety and depression scale (HADS) and Copenhagen burnout inventory (CBI) scale...
May 22, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28531963/mir-19b-and-mir-16-cooperatively-signaling-target-the-regulator-adra1a-in-hypertensive-heart-disease
#10
Liping He, Congxin Huang
BACKGROUND: Hypertensive heart disease (HHD) is one of the most important causes of disease-related deaths worldwide and brings great painful for patients. In recent years, increasingly evidences support the role of miRNAs in various physiology processes and human diseases. In the present study, we investigated whether ADRA1A regulated by miR-19b and miR-16 was involved in the pathogenic mechanism of HHD. METHODS: HHD mice models were established with injection of Deoxycorticosterone acetate (Doca)...
May 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28531827/safety-and-performance-of-the-second-generation-enlightn%C3%A2-renal-denervation-system-in-patients-with-drug-resistant-uncontrolled-hypertension
#11
Stephen G Worthley, Gerard T Wilkins, Mark W Webster, Joseph K Montarello, Sinny Delacroix, Robert J Whitbourn, Roderic J Warren
BACKGROUND AND AIMS: Catheter-based renal denervation for the treatment of drug-resistant hypertension has been intensively investigated in recent years. To date, only limited data have been published using multi-electrode radiofrequency ablation systems that can deliver lesions with a pre-determined pattern. This study was designed to evaluate the safety and performance of the second generation EnligHTN™ Renal Denervation System. METHODS: This first-in-human, prospective, multi-center, non-randomized study included 39 patients (62% male, mean age 63 years, and mean baseline office blood pressure 174/93 mmHg) with drug-resistant hypertension...
May 3, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28529487/cardiac-baroreflex-variability-and-resetting-during-sustained-mild-effort
#12
Mair Zamir, Mark B Badrov, T Dylan Olver, J Kevin Shoemaker
This exploratory study assessed the pattern of closed-loop baroreflex resetting using multi-logistic-curve analysis. Operating point gain and ranges of RR-interval (RRI) and systolic blood pressure (SBP) are derived to examine how these relate to sympathetic activation. Sustained low-intensity isometric handgrip exercise, with a period of post-exercise circulatory occlusion (PECO), provided a model to study baroreflex resetting because the progression toward fatigue at constant tension induces a continuous increase in volitional contribution to neuro-cardiovascular control...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28528723/ventricular-pacing-in-single-ventricles-a-bad-combination
#13
Anica Bulic, Frank J Zimmerman, Scott R Ceresnak, Ira Shetty, Kara S Motonaga, Anne Freter, Anthony V Trela, Deb Hanisch, Lisa Russo, Kishor Avasarala, Anne M Dubin
BACKGROUND: Chronic ventricular pacing (VP) is associated with systolic dysfunction in a subset of pediatric patients with heart block and structurally normal hearts. The effect of chronic VP in congenital heart disease is less well understood, specifically in the single-ventricle (SV) population. OBJECTIVE: To determine the longitudinal effect of VP in SV patients. METHODS: SV patients with heart block and dual-chamber pacemakers requiring >50% VP were compared with nonpaced (controls) SV patients matched for age, sex, and SV morphology...
June 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28528661/right-sided-cardiac-dysfunction-in-heart-failure-with-preserved-ejection-fraction-and-worsening-renal-function
#14
Monica Mukherjee, Kavita Sharma, Jose A Madrazo, Ryan J Tedford, Stuart D Russell, Allison G Hays
In urban populations, worsening renal function (WRF) is well established in patients hospitalized with acute decompensated heart failure with preserved ejection fraction (HFpEF). However, the mechanisms for development of WRF in the setting of acute HF in HFpEF are unclear. In the present study, we sought to characterize conventional echocardiographic measures of right ventricular (RV) chamber size and function to determine whether RV dysfunction and/or adverse RV remodeling is related to WRF in patients with HFpEF...
April 27, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28528401/cardiovascular-disease-biomarkers-are-associated-with-declining-renal-function-in-type-2-diabetes
#15
Sara J Jenks, Bryan R Conway, Stela McLachlan, Wei Leng Teoh, Rachel M Williamson, David J Webb, Paul Welsh, Naveed Sattar, Mark W J Strachan, Jackie F Price
AIMS/HYPOTHESIS: We investigated whether biochemical cardiovascular risk factors and/or markers of subclinical cardiovascular disease were associated with the development of reduced renal function in people with type 2 diabetes. METHODS: A cohort of 1066 Scottish men and women aged 60-74 years with type 2 diabetes from the Edinburgh Type 2 Diabetes Study were followed up for a median of 6.7 years. New-onset reduced renal function was defined as two eGFRs <60 ml(-1) min(-1) (1...
May 20, 2017: Diabetologia
https://www.readbyqxmd.com/read/28528162/intervendor-differences-in-the-accuracy%C3%A2-of%C3%A2-detecting-regional-functional%C3%A2-abnormalities-a-report-from-the-eacvi-ase-strain-standardization-task%C3%A2-force
#16
Oana Mirea, Efstathios D Pagourelias, Jurgen Duchenne, Jan Bogaert, James D Thomas, Luigi P Badano, Jens-Uwe Voigt
OBJECTIVES: The purpose of this study was to compare the accuracy of vendor-specific and independent strain analysis tools to detect regional myocardial function abnormality in a clinical setting. BACKGROUND: Speckle tracking echocardiography has been considered a promising tool for the quantitative assessment of regional myocardial function. However, the potential differences among speckle tracking software with regard to their accuracy in identifying regional abnormality has not been studied extensively...
May 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28528161/functional-implication-of-mitral-annular-disjunction-in-mitral-valve-prolapse-a-quantitative-dynamic-3d-echocardiographic%C3%A2-study
#17
Alex Pui-Wai Lee, Chun-Na Jin, Yiting Fan, Randolph H L Wong, Malcolm J Underwood, Song Wan
OBJECTIVES: This study aimed to assess the hypothesis that mitral annular disjunction (MAD) is associated with abnormal annular dynamics due to decoupling of annular-ventricular function. BACKGROUND: MAD, defined as a separation between the atrial wall-mitral valve (MV) junction and left ventricular (LV) attachment, is a structural abnormality occurring in MV prolapse (MVP). Few data exist on the 3-dimensional (3D) geometry of MAD and its functional implication...
May 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28528147/variability-and-reproducibility-of-segmental%C3%A2-longitudinal-strain-measurement-a-report-from-the-eacvi-ase-strain-standardization-task%C3%A2-force
#18
Oana Mirea, Efstathios D Pagourelias, Jurgen Duchenne, Jan Bogaert, James D Thomas, Luigi P Badano, Jens-Uwe Voigt
OBJECTIVES: In this study, we compared left ventricular (LV) segmental strain measurements obtained with different ultrasound machines and post-processing software packages. BACKGROUND: Global longitudinal strain (GLS) has proven to be a reproducible and valuable tool in clinical practice. Data about the reproducibility and intervendor differences of segmental strain measurements, however, are missing. METHODS: We included 63 volunteers with cardiac magnetic resonance-proven infarct scar with segmental LV function ranging from normal to severely impaired...
May 12, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28527865/mechanism-of-atrial-functional-mitral-regurgitation-in-patients-with-atrial-fibrillation-a-study-using-three-dimensional-transesophageal-echocardiography
#19
Kazato Ito, Yukio Abe, Yosuke Takahashi, Yoshihisa Shimada, Hitoshi Fukumoto, Yoshiki Matsumura, Takahiko Naruko, Toshihiko Shibata, Minoru Yoshiyama, Junichi Yoshikawa
BACKGROUND: Functional mitral regurgitation (MR) can occur in patients with atrial fibrillation (AF) despite having preserved left ventricular (LV) systolic function. This MR is known as atrial functional MR. The aim of this study was to clarify the mechanism of atrial functional MR using real-time three-dimensional transesophageal echocardiography (3DTEE). METHODS: Sixty patients underwent transthoracic echocardiography and 3DTEE: 16 patients with AF and significant non-organic MR and preserved LV ejection fraction (>50%) constituted the AF-MR group, 20 patients with AF and no significant MR formed the AF-NSMR group, and 24 normal subjects comprised the control group...
May 17, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28526545/obstructive-sleep-apnoea-and-right-ventricular-function-a-combined-assessment-by-speckle-tracking-and-three-dimensional-echocardiography
#20
Agostino Buonauro, Maurizio Galderisi, Ciro Santoro, Angelo Canora, Maria Luisa Bocchino, Francesco Lo Iudice, Maria Lembo, Roberta Esposito, Sabrina Castaldo, Bruno Trimarco, Alessandro Sanduzzi
BACKGROUND: Little is known on right ventricular (RV) involvement in obstructive sleep apnoea (OSA). This study aimed at evaluating early RV dysfunction by standard and advanced echocardiography in OSA. METHODS: Fifty-nine OSA patients without heart failure and 29 age-matched controls underwent standard, speckle tracking and real time 3D echocardiography of right ventricle. OSA patients performed lung function tests and overnight cardio-respiratory monitoring with evaluation of apnea-hypopnea index (AHI)...
May 4, 2017: International Journal of Cardiology
keyword
keyword
77010
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"