REGULATION OF CARDIAC VOLTAGE GATED POTASSIUM
... Figure 1.11: Repolarization reserve in canine ventricle. ................... 72 Figure 2.1: Reverse use dependent AP prolongation with 4-AP. .... 102 Figure 2.2: Effect of 4-AP on Ito and IKr ........................................... 104 Figure 2.3: Canine ventricular “IKur-like” current ......... ...
... Figure 1.11: Repolarization reserve in canine ventricle. ................... 72 Figure 2.1: Reverse use dependent AP prolongation with 4-AP. .... 102 Figure 2.2: Effect of 4-AP on Ito and IKr ........................................... 104 Figure 2.3: Canine ventricular “IKur-like” current ......... ...
The Classically Cardioprotective Agent Diazoxide Elicits
... tachyarrhythmias (VTs) under conditions of metabolic demand. Activation of mitochondrial adenosine triphosphatesensitive potassium (KATP) channels by low-dose diazoxide (DZX) improves hypoglycemia-related complications, metabolic function, and triglyceride and free fatty acid levels and reverses wei ...
... tachyarrhythmias (VTs) under conditions of metabolic demand. Activation of mitochondrial adenosine triphosphatesensitive potassium (KATP) channels by low-dose diazoxide (DZX) improves hypoglycemia-related complications, metabolic function, and triglyceride and free fatty acid levels and reverses wei ...
Entropy-Based Algorithms in the Analysis of Biomedical Signals
... or uncertainty in the data, was introduced by Shannon. To date, many different types of entropy methods have appeared with many different application areas. The purpose of this paper is to present a short overview of some methods of entropy analysis and to discuss their suitability for use in the anal ...
... or uncertainty in the data, was introduced by Shannon. To date, many different types of entropy methods have appeared with many different application areas. The purpose of this paper is to present a short overview of some methods of entropy analysis and to discuss their suitability for use in the anal ...
- Wiley Online Library
... identification of impaired relaxation has been suggested as a possible means for detection of occult cardiomyopathy in cats.6–13 One of the techniques used to assess diastolic function is echocardiographic evaluation of transmitral flow patterns. Because transmitral flow can be affected by ventricular l ...
... identification of impaired relaxation has been suggested as a possible means for detection of occult cardiomyopathy in cats.6–13 One of the techniques used to assess diastolic function is echocardiographic evaluation of transmitral flow patterns. Because transmitral flow can be affected by ventricular l ...
Timolol Maleate Ophthalmic Solution on Heart Rate and Selected
... identification of impaired relaxation has been suggested as a possible means for detection of occult cardiomyopathy in cats.6–13 One of the techniques used to assess diastolic function is echocardiographic evaluation of transmitral flow patterns. Because transmitral flow can be affected by ventricular l ...
... identification of impaired relaxation has been suggested as a possible means for detection of occult cardiomyopathy in cats.6–13 One of the techniques used to assess diastolic function is echocardiographic evaluation of transmitral flow patterns. Because transmitral flow can be affected by ventricular l ...
Coronary magnetic resonance angiography
... coronary MRA has been investigated since the late 1980s (2,3). Although no coronary stenoses were identified in those early studies, it triggered further interest in this field. For successful coronary MRA data acquisition, a series of major obstacles must be overcome. The coronary arteries are relati ...
... coronary MRA has been investigated since the late 1980s (2,3). Although no coronary stenoses were identified in those early studies, it triggered further interest in this field. For successful coronary MRA data acquisition, a series of major obstacles must be overcome. The coronary arteries are relati ...
Depolarization and Repolarization
... • Flat, downsloping, or depressed ST segments may indicate coronary ischemia. • ST elevation may indicate myocardial infarction. An elevation of >1mm and longer than 80 milliseconds following the Jpoint. This measure has a false positive rate of 15-20% (which is slightly higher in women than men) an ...
... • Flat, downsloping, or depressed ST segments may indicate coronary ischemia. • ST elevation may indicate myocardial infarction. An elevation of >1mm and longer than 80 milliseconds following the Jpoint. This measure has a false positive rate of 15-20% (which is slightly higher in women than men) an ...
Cardiac Radiology
... Strain-encoding (SENC) MRI gained large popularity as a unique tool for measuring myocardial regional function with high resolution in as short as one heartbeat without breath-hold or contrast injection. The resulting color-coded strain maps and curves provide important markers of subclinical cardia ...
... Strain-encoding (SENC) MRI gained large popularity as a unique tool for measuring myocardial regional function with high resolution in as short as one heartbeat without breath-hold or contrast injection. The resulting color-coded strain maps and curves provide important markers of subclinical cardia ...
(epinephrine) Auto-Injectors
... Anaphylaxis Action Plans are essential for emergency preparedness in the community3 Components of an Anaphylaxis Action Plan should include the following: •Avoid known allergens whenever possible1-3 •Recognize the symptoms4 •Always carry two EpiPen® Auto-Injectors1,2 •If experiencing anaphylaxis, us ...
... Anaphylaxis Action Plans are essential for emergency preparedness in the community3 Components of an Anaphylaxis Action Plan should include the following: •Avoid known allergens whenever possible1-3 •Recognize the symptoms4 •Always carry two EpiPen® Auto-Injectors1,2 •If experiencing anaphylaxis, us ...
Determinants of Fast- and Slow-Pathway Conduction in Patients
... II, the high right atrial electrogram (HRA), and the His bundle electrogram (HBE). A and H are, respectively, low right atrial and His bundle electrograms. Time lines are at 1-second intervals, and paper speed is 100 min/sec in this and subsequent illustrations. Conduction intervals are listed in ms ...
... II, the high right atrial electrogram (HRA), and the His bundle electrogram (HBE). A and H are, respectively, low right atrial and His bundle electrograms. Time lines are at 1-second intervals, and paper speed is 100 min/sec in this and subsequent illustrations. Conduction intervals are listed in ms ...
Amiodarone-Induced Postrepolarization Refractoriness Suppresses
... Burst Stimulation. To determine the vulnerability of the ventricles to extremely premature stimulation, the heart was stimulated for 5 s using 50-Hz burst stimuli at 2, 3, and 5 times diastolic threshold, and at maximal output strength (corresponding to 8 –20 times diastolic threshold). This stimula ...
... Burst Stimulation. To determine the vulnerability of the ventricles to extremely premature stimulation, the heart was stimulated for 5 s using 50-Hz burst stimuli at 2, 3, and 5 times diastolic threshold, and at maximal output strength (corresponding to 8 –20 times diastolic threshold). This stimula ...
Mechanisms of Long-Duration Ventricular€Fibrillation in Human
... needle activation was most common in SDVF, whereas endocardial to epicardial activation was most common in LDVF (47.7% and 38.8% of activations, respectively [p ¼ 0.031]). Re-entry was less common in LDVF, and over time, wave break (i.e., nontransmural propagation of wave fronts) developed. Isochron ...
... needle activation was most common in SDVF, whereas endocardial to epicardial activation was most common in LDVF (47.7% and 38.8% of activations, respectively [p ¼ 0.031]). Re-entry was less common in LDVF, and over time, wave break (i.e., nontransmural propagation of wave fronts) developed. Isochron ...
Anomalous Origin of the Right Coronary Artery From
... vein grafts to aorta; SVG to RCA, anastomosis of saphenous vein grafts to right coronary artery. ...
... vein grafts to aorta; SVG to RCA, anastomosis of saphenous vein grafts to right coronary artery. ...
Understanding Coronary Circulation and its Variations
... ? Sudden death in athletes – (due to slit-like lumen, acute angle or compression) Anomalous origin of RCA from left sinus (0.1%) Anomalous LMS from right sinus with interarterial course (0.03-0.05%) – ...
... ? Sudden death in athletes – (due to slit-like lumen, acute angle or compression) Anomalous origin of RCA from left sinus (0.1%) Anomalous LMS from right sinus with interarterial course (0.03-0.05%) – ...
Role of Magnesium in Cardiac Disease
... were residents in Mg2* rieh, hard water localities or Mg2* poor, soft water regions. In a Canadian study cardiac tissue of victims from accidental death was analysed in order to compare residents in regions with either 29.4 ppm or 2.8 ppm Mg2* in tap water. As can be seen in table l it was found tha ...
... were residents in Mg2* rieh, hard water localities or Mg2* poor, soft water regions. In a Canadian study cardiac tissue of victims from accidental death was analysed in order to compare residents in regions with either 29.4 ppm or 2.8 ppm Mg2* in tap water. As can be seen in table l it was found tha ...
The Wavelength of the Cardiac Impulse and Reentrant Arrhythmias
... measurements. Impulse propagation along the strip of atrial myocardium was monitored with a multiple-recording electrode, consisting of a row of Teflon-coated silver wires (diameter 0.3 mm) at an interelectrode distance of 2 mm. Unipolar elecrrograms were recorded, with a large silver plate in the t ...
... measurements. Impulse propagation along the strip of atrial myocardium was monitored with a multiple-recording electrode, consisting of a row of Teflon-coated silver wires (diameter 0.3 mm) at an interelectrode distance of 2 mm. Unipolar elecrrograms were recorded, with a large silver plate in the t ...
Influence of Ribose, Adenosine, and "AICAR" on the Rate of
... are rapidly washed out of the tissue upon reflow and are hence lost for salvage (Katori and Berne, 1966; Fox et al., 1979). Clinical efforts to reestablish blood flow in acute myocardial infarction by fibrinolysis (Schmutzler et al., 1966; Rentrop et al., 1981) were reported to be ...
... are rapidly washed out of the tissue upon reflow and are hence lost for salvage (Katori and Berne, 1966; Fox et al., 1979). Clinical efforts to reestablish blood flow in acute myocardial infarction by fibrinolysis (Schmutzler et al., 1966; Rentrop et al., 1981) were reported to be ...
Study of Third Coronary Artery in Adult Human Cadaveric Hearts
... Usually there are two coronary arteries, right and left. Sometimes supernumerary arteries may arise from the anterior aortic sinus. Commonest among them is the third coronary artery. A third coronary artery (TCA) has been defined as a direct branch from the anterior aortic sinus (Right coronary sinu ...
... Usually there are two coronary arteries, right and left. Sometimes supernumerary arteries may arise from the anterior aortic sinus. Commonest among them is the third coronary artery. A third coronary artery (TCA) has been defined as a direct branch from the anterior aortic sinus (Right coronary sinu ...
Two components of delayed rectifier K+ current in heart: molecular
... (KCNQ1), and a function-altering β subunit, minK (KCNE1)[29,30]. An N-terminal truncated isoform of the KvLQT1 gene product (isoform 2) has been identified in the human adult ventricle (with an amount of 28 % of total KvLQT1 expression)[31]. The isoform 2 exerts a pronounced dominant negative effect ...
... (KCNQ1), and a function-altering β subunit, minK (KCNE1)[29,30]. An N-terminal truncated isoform of the KvLQT1 gene product (isoform 2) has been identified in the human adult ventricle (with an amount of 28 % of total KvLQT1 expression)[31]. The isoform 2 exerts a pronounced dominant negative effect ...
The Combinatorial Activities of Nkx2.5 and dHAND Are Essential for
... proliferation, but lose the ability to substantially expand in number postnatally and are thereafter unable to repopulate areas of myocardial loss or injury. Congenital heart defects involving hypoplasia of the right or left ventricle account for 25% of all mortality from congenital heart disease in ...
... proliferation, but lose the ability to substantially expand in number postnatally and are thereafter unable to repopulate areas of myocardial loss or injury. Congenital heart defects involving hypoplasia of the right or left ventricle account for 25% of all mortality from congenital heart disease in ...
Chapter 3 HEART SOUND ANALYSIS - Estudo Geral
... prone to CVDs; hence a new trend of healthcare is emerging focusing on preventive health care in order to reduce the number of hospital visits and to enable home care. Auscultation has been open of the oldest and cheapest techniques to examine the heart. Furthermore, the recent advancement in digita ...
... prone to CVDs; hence a new trend of healthcare is emerging focusing on preventive health care in order to reduce the number of hospital visits and to enable home care. Auscultation has been open of the oldest and cheapest techniques to examine the heart. Furthermore, the recent advancement in digita ...
Diet, Hypertension and Salt Toxicity
... Is the Salt Institute a Reliable Source of Information about Salt? The “designated hitter” for these big food companies is the Salt Institute. The Salt Institute’s funding comes mainly from companies with an economic interest in refuting or at least downplaying scientific research linking the amoun ...
... Is the Salt Institute a Reliable Source of Information about Salt? The “designated hitter” for these big food companies is the Salt Institute. The Salt Institute’s funding comes mainly from companies with an economic interest in refuting or at least downplaying scientific research linking the amoun ...