keyword
MENU ▼
Read by QxMD icon Read
search

M-mode

keyword
https://www.readbyqxmd.com/read/29781840/cardiovascular-autonomic-profile-in-women-with-constitutional-hypotension
#1
Giris Jacob, Franca Barbic, Meytal Glago, Franca Dipaola, Alberto Porta, Raffaello Furlan
BACKGROUND: Constitutional hypotension (CHT) is defined as a SBP below 105 mmHg. As autonomic-related symptoms are frequently reported in CHT, these symptoms suggest that the cardiovascular autonomic control is perturbed in individuals with CHT. METHODS: We investigated the autonomic cardiovascular control of 15 women with CHT and 12 women with NBP (SBP >110 mmHg). We monitored BP and ECG for autonomic function test. Supine and head up tilt (HUT) spectral analysis of RR interval and BP variability, baroreflex sensitivity and plasma levels of plasma renin activity and aldosterone were determined...
May 16, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29762924/early-improvement-in-mitral-regurgitation-after-cardiac-resynchronization-therapy-in-cardiomyopathy-patients
#2
Hakimeh Sadeghian, Masoumeh Lotfi-Tokaldany, Mahdi Montazeri, Ali Kazemi Saeed, Mohammad Sahebjam, Akram Sardari, Gita Ejmalian
BACKGROUND: The study aim was to investigate factors affecting the improvement of mitral regurgitation (MR) severity within 48 hours after cardiac resynchronization therapy (CRT) in patients with cardiomyopathy. METHODS: Sixty-nine cardiomyopathy patients (48 males, 21 females; mean age 59.12 ± 9.66 years) in NYHA functional class ≥III, with left ventricular ejection fraction (LVEF) ≤35%, and QRS duration >120 ms, with MR ≥moderate, were included in the study...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29759092/cardiac-function-in-children-with-premature-ventricular-contractions-the-effect-of-omega-3-polyunsaturated-fatty-acid-supplementation
#3
Taliha Oner, Rahmi Ozdemir, Onder Doksöz, Dildar B Genc, Baris Guven, Savas Demirpence, Murat M Yilmazer, Yilmaz Yozgat, Timur Mese, Vedide Tavli
BACKGROUND: Premature ventricular contractions are accepted as benign in structurally normal hearts. However, reversible cardiomyopathy can sometimes develop. Omega-3 polyunsaturated fatty acids have anti-arrhythmic properties in animals and humans.AimWe evaluated left ventricular function in children with premature ventricular contractions with normal cardiac anatomy and assessed the impact of omega-3 fatty acid supplementation on left ventricular function in a prospective trial. METHODS: A total of 25 patients with premature ventricular contraction, with more than 2% premature ventricular contractions on 24-hour Holter electrocardiography, and 30 healthy patients were included into study...
May 15, 2018: Cardiology in the Young
https://www.readbyqxmd.com/read/29754460/prognostic-evaluation-of-the-elastic-properties-of-the-ascending-aorta-in-dilated-cardiomyopathy
#4
Edoardo Sciatti, Enrico Vizzardi, Ivano Bonadei, Davide Fabbricatore, Francesco Prati, Mattia Pagnoni, Marco Metra
BACKGROUND: Nowadays there is an increased interest in the role of aortic stiffness in the pathophysiology of heart failure (HF), since it is a major determinant of left ventricular (LV) performance. We aimed at assessing the predictive value of the aortic stiffness parameters, measured by echocardiography, in patients affected by non-ischemic dilated cardiomyopathy (DCM) regarding three end-points: death, HF rehospitalization, combined death or HF rehospitalization in a long-term follow-up...
May 13, 2018: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29746603/intraobserver-and-interobserver-reproducibility-of-m-mode-and-b-mode-acquired-mitral-annular-plane-systolic-excursion-mapse-and-its-dependency-on-echocardiographic-image-quality-in-children
#5
Kai O Hensel, Markus Roskopf, Lucia Wilke, Andreas Heusch
BACKGROUND: Mitral annular plane systolic excursion (MAPSE) is an increasingly used echocardiography technique to assess left ventricular (LV) function. However, reproducibility and dependence on echocardiographic image quality for MAPSE in pediatric patients have not been studied to date. METHODS: We analyzed 284 transthoracic echocardiograms performed on consecutive normotensive children without structural heart disease (mean age 12.6±3.1 years, 50.4% female)...
2018: PloS One
https://www.readbyqxmd.com/read/29746446/reduced-hemidiaphragmatic-paresis-with-a-corner-pocket-technique-for-supraclavicular-brachial-plexus-block-single-center-observer-blinded-randomized-controlled-trial
#6
Ryung A Kang, Yang Hoon Chung, Justin Sangwook Ko, Mi Kyung Yang, Duck Hwan Choi
BACKGROUND AND OBJECTIVE: Hemidiaphragmatic paresis is common after supraclavicular brachial plexus block (SCBPB). In this randomized trial, we compared the incidence of hemidiaphragmatic paresis in patients who had local anesthetic injected primarily in the corner pocket (defined as the intersection of the first rib and subclavian artery) during SCBPB with that of patients who underwent injection primarily inside the neural cluster. METHODS: Thirty-six patients scheduled for right elbow, forearm, wrist, or hand surgery under SCBPB (using 12...
May 10, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29733280/motion-tolerant-unfocused-imaging-of-physiological-waveforms-for-blood-pressure-waveform-estimation-using-ultrasound
#7
Joohyun Seo, Sabino J Pietrangelo, Charles G Sodini, Hae-Seung Lee
This paper details unfocused imaging using single-element ultrasound transducers for motion tolerant arterial blood pressure (ABP) waveform estimation. The ABP waveform is estimated based on pulse wave velocity and arterial pulsation through Doppler and M-mode ultrasound. This paper discusses approaches to mitigate the effect of increased clutter due to unfocused imaging on blood flow and diameter waveform estimation. An intensity reduction model (IRM) estimator is described to track the change of diameter, which outperforms a complex cross-correlation model (C3M) estimator in low contrast environments...
May 2018: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/29724583/evaluation-of-tricuspid-annular-plane-systolic-excursion-measured-by-two-dimensional-echocardiography-in-healthy-dogs-repeatability-reference-intervals-and-comparison-with-m-mode-assessment
#8
L C Visser, D J Sintov, M S Oldach
INTRODUCTION: We sought to determine the feasibility, measurement variability, and within-day repeatability of tricuspid annular plane systolic excursion (TAPSE) measured by two-dimensional echocardiography (2D TAPSE), generate reference intervals for 2D TAPSE, assess agreement and correlation between 2D TAPSE and the conventional TAPSE measured by M-mode echocardiography (MM TAPSE), and to assess the ability of 2D TAPSE to track a drug-induced decrease in right ventricular (RV) function compared with MM TAPSE...
April 30, 2018: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29714450/obstructive-sleep-apnea-syndrome-is-associated-with-impaired-pulmonary-artery-distensibility-and-right-ventricular-systolic-dysfunction
#9
Süha Çetin, Mustafa Gökhan Vural, Hikmet Fırat, Ramazan Akdemir
Background/aim: We investigated whether obstructive sleep apnea syndrome (OSAS) has any impact on pulmonary artery distensibility (PAD) and right ventricular (RV) function. Materials and methods: Subjects were categorized according to apnea–hypopnea index (AHI) as follows: controls (n = 17 and AHI < 5), mild-to-moderate OSAS (n = 22 and AHI = 5–30), and severe OSAS (n = 29 and AHI > 30). All subjects underwent transthoracic echocardiography after polysomnography to assess PAD and RV function. PAD was recorded as M-Mode trace of the right pulmonary artery and was defined as (PAmax –PAmin/PAmin) × 100...
April 30, 2018: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29706767/m-mode-diagnosis-of-tachyarrhythmia-can-be-erroneous-owing-to-pseudo-1-1-atrioventricular-movement-of-the-atrial-wall-adjacent-to-the-atrioventricular-valve-possibly-due-to-atrioventricular-constraint-a-case-of-neonatal-atrial-flutter-with-2-1-atrioventricular
#10
Akiko Kawano, Ayumi Oshima, Satoshi Masutani, Akio Ishiguro, Yoichi Iwamoto, Hirotaka Ishido, Mio Taketazu, Hideaki Senzaki
M-mode echocardiography has been playing an important role in the diagnosis of fetal tachyarrhythmia. We recently encountered a neonatal case of atrial flutter with 2:1 atrioventricular conduction. However, M-mode erroneously indicated 1:1 atrioventricular movement. While the movement of the atrial wall far from the atrioventricular valve was much faster than that of the ventricular wall, the atrial wall adjacent to the atrioventricular valve fully synchronized to that of the ventricular wall. Thus, to avoid this novel pitfall, it would be important to add an additional assessment focusing on the movement of the atrial wall far from the ventricle...
2018: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/29693606/feasibility-of-optical-coherence-tomography-oct-for-intra-operative-detection-of-blood-flow-during-gastric-tube-reconstruction
#11
Sanne M Jansen, Mitra Almasian, Leah S Wilk, Daniel M de Bruin, Mark I van Berge Henegouwen, Simon D Strackee, Paul R Bloemen, Sybren L Meijer, Suzanne S Gisbertz, Ton G van Leeuwen
In this study; an OCT-based intra-operative imaging method for blood flow detection during esophagectomy with gastric tube reconstruction is investigated. Change in perfusion of the gastric tube tissue can lead to ischemia; with a high morbidity and mortality as a result. Anastomotic leakage (incidence 5⁻20%) is one of the most severe complications after esophagectomy with gastric tube reconstruction. Optical imaging techniques provide for minimal-invasive and real-time visualization tools that can be used in intraoperative settings...
April 25, 2018: Sensors
https://www.readbyqxmd.com/read/29689594/does-the-addition-of-m-mode-to-b-mode-ultrasound-increase-the-accuracy-of-identification-of-lung-sliding-in-traumatic-pneumothoraces
#12
Jacob Avila, Ben Smith, Therese Mead, Duane Jurma, Matthew Dawson, Michael Mallin, Adam Dugan
OBJECTIVES: It is unknown whether the addition of M-mode to B-mode ultrasound (US) has any effect on the overall accuracy of interpretation of lung sliding in the evaluation of a pneumothorax by emergency physicians. This study aimed to determine what effect, if any, this addition has on US interpretation by emergency physicians of varying training levels. METHODS: One hundred forty emergency physicians were randomized via online software to receive a quiz with B-mode clips alone or B-mode with corresponding M-mode images and asked to identify the presence or absence of lung sliding...
April 24, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29686546/usefulness-of-left-ventricular-mass-change-to-predict-progression-of-renal-dysfunction-in-hispanics
#13
Sarmad Said, Mohamed Teleb, Aymen Omar Albaghdadi, Obiajulu Kanu, Miraie Wardi, Kyari Sumayin Ngamdu, Lutf Rahman Sroush, Majd Michael, Asmik Asatrian, Riyadh Salih Salman, Debabrata Mukherjee
There is a strong relation between metabolic syndrome (MetS) and left ventricular (LV) mass in Hispanic patients. This population also tends to have a higher incidence of kidney disease, with progression to dialysis. We analyzed the change in LV mass in 982 Hispanic patients with MetS and used these data to anticipate the progression of renal dysfunction. Glomerular filtration rate (GFR) was calculated using the formula described by the Chronic Kidney Disease Epidemiology Collaboration. Echocardiographic data were collected using 2-dimensionally guided M-mode echocardiography measures...
January 2018: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/29682476/visual-versus-fully-automated-assessment-of-left-ventricular-ejection-fraction
#14
Rami Mahmood Abazid, Samah I Abohamr, Osama A Smettei, Mohammed S Qasem, Annie R Suresh, Mohammad F Al Harbi, Abdulrahman N Aljaber, Athary A Al Motairy, Diana E Albiela, Bashayer Muhil Almutairi, Haitham Sakr
Introduction: The aim of this study is to compare three different echocardiographic methods commonly used in the assessment of left ventricle (LV) ejection fraction (EF). Methods: All patients underwent full echocardiography including LVEF assessed using M-mode, automated EF (Auto-EF), and visual estimation by two readers. Results: We enrolled 268 patients. Auto-EF measurement was feasible in 240 (89.5%) patients. The averaged LVEF was (52% ± 12) with the visual assessment, (51% ± 11) with Auto-EF and (57% ± 13) with M-mode...
April 2018: Avicenna Journal of Medicine
https://www.readbyqxmd.com/read/29682435/assessment-of-ventriculoperitoneal-shunt-function-using-ultrasound-characterization-of-valve-interface-oscillation-as-a-proxy
#15
April Aralar, Matthew Bird, Robert Graham, Beomseo Koo, Parag Chitnis, Siddhartha Sikdar, Mahesh Shenai
Objective Ventricular shunts are a mainstay of hydrocephalus treatment, but the detection of its clinical failure often relies on circumstantial evidence. A direct, non-interventional method for reliably evaluating cerebrospinal fluid (CSF) function does not exist due to the difficulty of measuring in vivo flow characteristics. The objective of this study is to apply a novel method of ultrasound monitoring to characterize the oscillation observed during pulsatile CSF flow and failure states in an in vitro and cadaveric model...
February 19, 2018: Curēus
https://www.readbyqxmd.com/read/29677464/improving-the-quality-of-preclinical-research-echocardiography-observations-training-and-guidelines-for-measurement
#16
Daniel G Donner, Helen Kiriazis, Xiao-Jun Du, Thomas H Marwick, Julie R McMullen
Informal training in preclinical research may be a contributor to the poor reproducibility of preclinical cardiology research and low rates of translation into clinical research and practice. Mouse echocardiography is a widely used technique to assess cardiac structure and function in drug intervention studies using disease models. The inter-observer variability (IOV) of clinical echocardiographic measurements has been shown to improve with formalized training, but preclinical echocardiography lacks similarly critical standardization of training...
April 20, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29669326/atorvastatin-attenuates-myocardial-hypertrophy-in-spontaneously-hypertensive-rats-via-the-c-ebp%C3%AE-pgc-1%C3%AE-ucp3-pathway
#17
Yintao Chen, Ye Chang, Naijin Zhang, Xiaofan Guo, Guozhe Sun, Yingxian Sun
BACKGROUND/AIMS: Many clinical and experimental studies have shown that treatment with statins could prevent myocardial hypertrophy and remodeling induced by hypertension and myocardial infarction. But the molecular mechanism was not clear. We aimed to investigate the beneficial effects of atorvastatin on hypertension-induced myocardial hypertrophy and remodeling in spontaneously hypertensive rats (SHR) with the hope of revealing other potential mechanisms or target pathways to interpret the pleiotropic effects of atorvastatin on myocardial hypertrophy...
April 13, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29667250/a-new-2d-echocardiographic-approach-to-evaluate-the-membrane-and-valve-movement-of-the-berlin-heart-excor-vad-chamber-in-pediatric-vad-patients
#18
Arianna Di Molfetta, Roberta Iacobelli, Gianfranco Ferrari, Sergio Filippelli, Gianluigi Perri, Alessandra Toscano, Rachele Adorisio, Paolo Guccione, Antonio Amodeo
The use of Berlin Heart EXCOR VAD (BH) is a validated therapy to bridge pediatric patients to heart transplant. Serial echocardiographic (ECHO) assessment of VAD patients is necessary to support patients' management. This work aims at developing an innovative strategy to evaluate the BH device functioning by ECHO and its interaction with the native heart in a pediatric population. ECHO evaluation of BH membrane movement, and inflow and outflow valves was performed in 2D, 2D-color Doppler, M-mode, and M-mode color Doppler to assess the functioning of the device by direct positioning of the ECHO probe on the BH cannulas and membranes...
April 2018: Artificial Organs
https://www.readbyqxmd.com/read/29652546/ataxia-telangiectasia-mutated-kinase-deficiency-impairs-autophagic-response-early-during-myocardial-infarction
#19
Patsy R Thrasher, Stephanie L C Scofield, Suman Dalal, Claire C Crawford, Mahipal Singh, Krishna Singh
Ataxia-telangiectasia mutated kinase (ATM) is activated in response to DNA damage. We have previously shown that ATM plays a critical role in myocyte apoptosis and cardiac remodeling following myocardial infarction (MI). Here, we tested the hypothesis that ATM deficiency results in autophagic impairment in the heart early during MI. MI was induced in wild-type (WT) and ATM heterozygous knockout (hKO) mice by ligation of the left anterior descending artery (LAD). Structural and biochemical parameters of the heart were measured 4 hours following LAD ligation...
April 13, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29622963/role-of-2d-speckle-tracking-echocardiography-in-predicting-acute-coronary-occlusion-in-patients-with-non-st-segment-elevation-myocardial-infarction
#20
Viola William Keddeas, Salwa Mohammed Swelim, Ghada Kamel Selim
Background: A substantial fraction of patients with non ST-elevation acute coronary syndrome have an occluded culprit vessel on coronary angiography. Acute coronary occlusion often results in myocardial infarction and loss of systolic function. Identification of these patients may have considerable impact on treatment and prognosis. Aim: The study aims at investigating role of 2D speckle tracking echocardiography as a non-invasive predictor of acute coronary artery occlusion in patients with non ST-segment elevation myocardial infarction...
June 2017: The Egyptian heart journal: (EHJ): official bulletin of the Egyptian Society of Cardiology
keyword
keyword
19825
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"