twist project
... LV Twist in the Dyssynchronous, Failing Ventricle Ischemic vs. Non-ischemic Failing Ventricle: LV twist is more reduced in HF as compared to acute myocardial infarction Different mechanisms underlying the reduction in LV twist: 1. In HF patients, LV twist impairment results from a long-standing pro ...
... LV Twist in the Dyssynchronous, Failing Ventricle Ischemic vs. Non-ischemic Failing Ventricle: LV twist is more reduced in HF as compared to acute myocardial infarction Different mechanisms underlying the reduction in LV twist: 1. In HF patients, LV twist impairment results from a long-standing pro ...
A brief glossary of the most used cardiac acronyms and medical
... Amiodorone – an emergency, last-effort, anti-arrhythmia medication with a high success rate, but also a high side effect rate and very long half-life in the patient, taking six months or more to dissipate from the body. Currently, the product is often being prescribed offlabel as a first-line anti-a ...
... Amiodorone – an emergency, last-effort, anti-arrhythmia medication with a high success rate, but also a high side effect rate and very long half-life in the patient, taking six months or more to dissipate from the body. Currently, the product is often being prescribed offlabel as a first-line anti-a ...
PDF - Oxford Academic
... study, the anaerobic threshold, which precedes the ventilatory threshold demonstrated a trend to be greater than normal and there was a relationship between anaerobic threshold and age at testing rather than age at, or time from surgery. Furthermore, children with treated atrial septal defects in ou ...
... study, the anaerobic threshold, which precedes the ventilatory threshold demonstrated a trend to be greater than normal and there was a relationship between anaerobic threshold and age at testing rather than age at, or time from surgery. Furthermore, children with treated atrial septal defects in ou ...
Metabolic Response during Impending Myocardial
... hvpoxia rather than anoxia that determines the immediate local metabolic response. In addition, it is regional hypoxia compounded by reduction and not cessation in coronary flow-in other words, regional myocardial ischemia in a heart where flow to other areas is not impaired. The persistence of myoc ...
... hvpoxia rather than anoxia that determines the immediate local metabolic response. In addition, it is regional hypoxia compounded by reduction and not cessation in coronary flow-in other words, regional myocardial ischemia in a heart where flow to other areas is not impaired. The persistence of myoc ...
morphological and immunohistochemical patterns of the intrinsic
... Intrinsic ganglionated cardiac plexus integrates input from multiple sources including vagal efferent and afferent neurons, extrinsic sympathetic and spinal sensory neurons. The balance between the stimulatory sympathetic and inhibitory parasympathetic inputs are important for control of cardiac fun ...
... Intrinsic ganglionated cardiac plexus integrates input from multiple sources including vagal efferent and afferent neurons, extrinsic sympathetic and spinal sensory neurons. The balance between the stimulatory sympathetic and inhibitory parasympathetic inputs are important for control of cardiac fun ...
Pdf version
... Tesla scanner, The General Electric Company, Con‑ necticut, United States) and ECG‑gated CT (GE LightSpeed, 16‑slice, The General Electric Compa‑ ny) within 48 hours before surgery. To minimize intra‑observer variability, one investigator was re‑ sponsible for performing MRI scans and anoth‑ er one ...
... Tesla scanner, The General Electric Company, Con‑ necticut, United States) and ECG‑gated CT (GE LightSpeed, 16‑slice, The General Electric Compa‑ ny) within 48 hours before surgery. To minimize intra‑observer variability, one investigator was re‑ sponsible for performing MRI scans and anoth‑ er one ...
Real-time phase-contrast flow MRI of the ascending aorta and
... velocity-encoded phase-contrast flow MRI6–8 allows for a noninvasive quantification of blood flow in all major heart vessels.9,10 So far, however, a fundamental limitation of current cine MRI techniques is their dependency on the electrocardiogram (ECG), either for triggering or retrospective sorting o ...
... velocity-encoded phase-contrast flow MRI6–8 allows for a noninvasive quantification of blood flow in all major heart vessels.9,10 So far, however, a fundamental limitation of current cine MRI techniques is their dependency on the electrocardiogram (ECG), either for triggering or retrospective sorting o ...
Left Atrial Size
... linear dimension by M-mode echocardiography (13,14) is simple and convenient but not reliably accurate, given that the LA is not a symmetrically shaped three-dimensional (3D) structure (15). Furthermore, because LA enlargement may not occur in a uniform fashion (16), one-dimensional assessment is li ...
... linear dimension by M-mode echocardiography (13,14) is simple and convenient but not reliably accurate, given that the LA is not a symmetrically shaped three-dimensional (3D) structure (15). Furthermore, because LA enlargement may not occur in a uniform fashion (16), one-dimensional assessment is li ...
Morphology and Electrophysiology of the Mammalian A trioven
... described a spindle-shaped compact network of small cells. These cells were connected via "Knotenpunkten" in which four to five fibers were of ten joined together. It was apparently this characteristic that prompted him "for simplicity's sake" to call this compact netwcirk "Knoten" ("node"). It must ...
... described a spindle-shaped compact network of small cells. These cells were connected via "Knotenpunkten" in which four to five fibers were of ten joined together. It was apparently this characteristic that prompted him "for simplicity's sake" to call this compact netwcirk "Knoten" ("node"). It must ...
Presence of Atrial Fibrillation Is Independently Associated With
... In this large, multicenter, national HF registry of patients admitted with HF, 31.4% of patients presented in AF, and, of those in AF, 21.3% were newly diagnosed. Patients in AF were older and more likely to have a history of stroke and valvular heart disease. AF patients underwent fewer invasive pr ...
... In this large, multicenter, national HF registry of patients admitted with HF, 31.4% of patients presented in AF, and, of those in AF, 21.3% were newly diagnosed. Patients in AF were older and more likely to have a history of stroke and valvular heart disease. AF patients underwent fewer invasive pr ...
Physical Fitness and Risk for Heart Failure and Coronary Artery
... each possible transition. So, for example, a healthy participant was included in the risk set for transition to heart failure and the risk set for transition to MI until either of these events or a censoring event occurred. We used the robust sandwich estimate of the covariance matrix to account for ...
... each possible transition. So, for example, a healthy participant was included in the risk set for transition to heart failure and the risk set for transition to MI until either of these events or a censoring event occurred. We used the robust sandwich estimate of the covariance matrix to account for ...
AHEART July 46/1 - AJP
... control artifacts that might interfere with the signal. We recorded hemodynamic measurements for several control beats, and an aortic occlusion was performed. The aortic occlusion was triggered on the R-wave from a lead II electrocardiogram. After the aortic occlusion, ⬃20 beats were allowed for the ...
... control artifacts that might interfere with the signal. We recorded hemodynamic measurements for several control beats, and an aortic occlusion was performed. The aortic occlusion was triggered on the R-wave from a lead II electrocardiogram. After the aortic occlusion, ⬃20 beats were allowed for the ...
Coupled systolic-ventricular and vascular stiffening with age
... elderly (18 –20,31) that are linked to greater blood pressure sensitivity to diuretic therapy, altered fluid intake and postural or postprandial stress (21–24,31). Ventricular-vascular coupling with age. Although tandem elevation of Ees and Ea was statistically significant, there was considerable sc ...
... elderly (18 –20,31) that are linked to greater blood pressure sensitivity to diuretic therapy, altered fluid intake and postural or postprandial stress (21–24,31). Ventricular-vascular coupling with age. Although tandem elevation of Ees and Ea was statistically significant, there was considerable sc ...
Atrial Coronary Arteries: Anatomy And Atrial Perfusion
... portion of the interatrial septum divides anteriorly forming a “Y” shape where the stem represents the interatrial septum posteriorly and wings to form the anterior walls of both atria. Kugel’s artery lies along the anterior atrial walls and travels into the interatrial septum. 12 In a study of 50 n ...
... portion of the interatrial septum divides anteriorly forming a “Y” shape where the stem represents the interatrial septum posteriorly and wings to form the anterior walls of both atria. Kugel’s artery lies along the anterior atrial walls and travels into the interatrial septum. 12 In a study of 50 n ...
Congenital heart defects in cats - Epsilon Archive for Student Projects
... blood to shunt across the defect from left-to-right in systole. Most of the blood will shunt directly into the right ventricular outflow tract and pulmonary artery (Bonagura & Lehmkuhl, 1999). It will then proceed to the lungs and return to the left atrium again via the pulmonary veins. Thus, it is ...
... blood to shunt across the defect from left-to-right in systole. Most of the blood will shunt directly into the right ventricular outflow tract and pulmonary artery (Bonagura & Lehmkuhl, 1999). It will then proceed to the lungs and return to the left atrium again via the pulmonary veins. Thus, it is ...
Robert Kloner, M.D., Ph.D.
... primary percutaneous coronary intervention with (n = 166) or without (n = 167) remote ischemic conditioning (intermittent arm ischemia through four cycles of 5-min inflation followed by 5-min deflation of a blood-pressure cuff The primary endpoint was major adverse cardiac and cerebrovascular even ...
... primary percutaneous coronary intervention with (n = 166) or without (n = 167) remote ischemic conditioning (intermittent arm ischemia through four cycles of 5-min inflation followed by 5-min deflation of a blood-pressure cuff The primary endpoint was major adverse cardiac and cerebrovascular even ...
Left Ventricular Hypertrophy Is Associated With Increased Infarct
... 3 randomized, multicenter trials evaluating ischemic postconditioning (DANAMI3-iPOST), deferred stenting (DANAMI3DEFER), and complete fractional flow reserve guided revascularization (DANAMI3-PRIMULTI) in STEMI patients. Only patients included at 1 center, Rigshospitalet, Copenhagen University Hospit ...
... 3 randomized, multicenter trials evaluating ischemic postconditioning (DANAMI3-iPOST), deferred stenting (DANAMI3DEFER), and complete fractional flow reserve guided revascularization (DANAMI3-PRIMULTI) in STEMI patients. Only patients included at 1 center, Rigshospitalet, Copenhagen University Hospit ...
Philips Resuscitation Solutions
... measurement and corrective feedback for all components of CPR. Real time, on-screen data and audio prompting help you perform your best CPR in the moment. And Q-CPR Review software lets you retrospectively evaluate the quality of CPR that was provided to a patient and identify areas for improvement. ...
... measurement and corrective feedback for all components of CPR. Real time, on-screen data and audio prompting help you perform your best CPR in the moment. And Q-CPR Review software lets you retrospectively evaluate the quality of CPR that was provided to a patient and identify areas for improvement. ...
user_guide - McMaster Computing and Software
... 1.1.1 What is a pacemaker? A pacemaker is a medical device which uses electrical impulses, delivered by electrodes contacting the heart muscles, to regulate the beating of the heart. The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the heart’s native pacemaker ...
... 1.1.1 What is a pacemaker? A pacemaker is a medical device which uses electrical impulses, delivered by electrodes contacting the heart muscles, to regulate the beating of the heart. The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the heart’s native pacemaker ...
The Effect of Intracellular Oxygen Concentration on Lactate Release
... changed inversely with lactate release. Identical curves were obtained by either increasing or decreasing the oxygen concentration in the inflowing perfusate at a rate below a certain limit. For instance, the curves started to change when the oxygen concentration was decreased at rates above 90 /iM/ ...
... changed inversely with lactate release. Identical curves were obtained by either increasing or decreasing the oxygen concentration in the inflowing perfusate at a rate below a certain limit. For instance, the curves started to change when the oxygen concentration was decreased at rates above 90 /iM/ ...
Pacemakers - British Heart Foundation
... hospital pacing team to keep a very close eye on your pacemaker without you having to come into hospital. This is particularly useful if you live a long distance from the hospital or if your pacemaker needs very frequent follow-up. However, this is fairly new technology and is not yet available with ...
... hospital pacing team to keep a very close eye on your pacemaker without you having to come into hospital. This is particularly useful if you live a long distance from the hospital or if your pacemaker needs very frequent follow-up. However, this is fairly new technology and is not yet available with ...
Link
... following noncardiac surgery. The CICU is staffed with a multidisciplinary care team, including cardiac intensivists, cardiothoracic surgeons, and dedicated cardiac nurses. “Dedicated” indicates the beds and staff are used exclusively for cardiac patients except in rare overflow situations. 10 This ...
... following noncardiac surgery. The CICU is staffed with a multidisciplinary care team, including cardiac intensivists, cardiothoracic surgeons, and dedicated cardiac nurses. “Dedicated” indicates the beds and staff are used exclusively for cardiac patients except in rare overflow situations. 10 This ...
Impedance Cardiography
... membranes, which have the isolating properties. The presence of conductive fluid part and solid, isolating, component in the same tissue is affecting on anisotropic, electrical properties of the living tissue. Figure 2.1 (based on the results published by [67] presents the idealized curve of the cha ...
... membranes, which have the isolating properties. The presence of conductive fluid part and solid, isolating, component in the same tissue is affecting on anisotropic, electrical properties of the living tissue. Figure 2.1 (based on the results published by [67] presents the idealized curve of the cha ...
Wenckebach Periods in
... complex followed by two with "complete"' bundle-branch block). Accordingly, for Wenckebach phenomenon in one bundle branch to appear directly in the electrocardiogram, as in the two cases presented in this paper, the second beat of the period must have a conduction delay shorter than 0.04 to 0.06 se ...
... complex followed by two with "complete"' bundle-branch block). Accordingly, for Wenckebach phenomenon in one bundle branch to appear directly in the electrocardiogram, as in the two cases presented in this paper, the second beat of the period must have a conduction delay shorter than 0.04 to 0.06 se ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.