Tako-tsubo cardiomyopathy
... patients develop Q-waves (most frequently in leads V2-V4). Within 24 to 48 hours of the acute presentation, the ECG frequently shows deeply inverted T-waves and a markedly prolonged QTinterval in both precordial and limb leads. The QTinterval prolongation often normalizes within two days, but the T- ...
... patients develop Q-waves (most frequently in leads V2-V4). Within 24 to 48 hours of the acute presentation, the ECG frequently shows deeply inverted T-waves and a markedly prolonged QTinterval in both precordial and limb leads. The QTinterval prolongation often normalizes within two days, but the T- ...
Rhythmical Excitation of the Heart
... • The discharge rate of the sinus node is considerably faster than the natural selfexcitatory discharge rate of either the A-V node or the Purkinje fibers. • Under abnormal conditions, few other parts of the heart can exhibit intrinsic rhythmical excitation in the same way like the sinus nodal fiber ...
... • The discharge rate of the sinus node is considerably faster than the natural selfexcitatory discharge rate of either the A-V node or the Purkinje fibers. • Under abnormal conditions, few other parts of the heart can exhibit intrinsic rhythmical excitation in the same way like the sinus nodal fiber ...
Restrictive Cardiomyopathy
... Bottom: pulsed wave-Doppler from the mitral valve demonstrating very high early diastolic velocity (Ewave), short deceleration time (<130 ms), low late diastolic filling (A-wave) of the transmitral velocity ...
... Bottom: pulsed wave-Doppler from the mitral valve demonstrating very high early diastolic velocity (Ewave), short deceleration time (<130 ms), low late diastolic filling (A-wave) of the transmitral velocity ...
Abstract ECMO
... contribution of albumin dialysis using Molecular Adsorbent Recirculating System to improve CCBpoisoned patients with refractory vasodilatation. Lipid emulsion has been extensively used to treat severe symptoms attributed to cardiotoxicants. However, due to the lack of randomized controlled studies, ...
... contribution of albumin dialysis using Molecular Adsorbent Recirculating System to improve CCBpoisoned patients with refractory vasodilatation. Lipid emulsion has been extensively used to treat severe symptoms attributed to cardiotoxicants. However, due to the lack of randomized controlled studies, ...
Right Ventricular Pacing for Right Ventricular Outflow Tract Obstruction
... Cardiac magnetic resonance images confirmed noncontiguous hypertrophy involving the basal septal, basal anterior, and apical walls of the left ventricle, as well as the inferior and free walls of the right ventricle (RV). A prominent muscle band in the RVOT contributed to dynamic obstruction acros ...
... Cardiac magnetic resonance images confirmed noncontiguous hypertrophy involving the basal septal, basal anterior, and apical walls of the left ventricle, as well as the inferior and free walls of the right ventricle (RV). A prominent muscle band in the RVOT contributed to dynamic obstruction acros ...
幻灯片 1
... A hypodynamic heart is characterized by an elevated enddiastolic pressure, a slowly rising ventricular pressure, and a somewhat reduced ejection phase (curve C). A hyperdynamic heart (such as a heart stimulated by norepinephrine) shows a reduced end-diastolic pressure, a fastrising ventricular pres ...
... A hypodynamic heart is characterized by an elevated enddiastolic pressure, a slowly rising ventricular pressure, and a somewhat reduced ejection phase (curve C). A hyperdynamic heart (such as a heart stimulated by norepinephrine) shows a reduced end-diastolic pressure, a fastrising ventricular pres ...
Bradycardia
... • A moderate alternating-current voltage applied directly to the ventricles throws the ventricles into fibrillation, a strong high voltage alternating electrical current passed through the ventricles for a fraction of a second can stop fibrillation by throwing all the ventricular muscle to refracto ...
... • A moderate alternating-current voltage applied directly to the ventricles throws the ventricles into fibrillation, a strong high voltage alternating electrical current passed through the ventricles for a fraction of a second can stop fibrillation by throwing all the ventricular muscle to refracto ...
GASTROENTEROLOGY AND HEPATOLOGY 1. Presence of triad of
... sucralfate 7. The gastric outlet obstruction is most characterized by: 1) vomiting of bile-containing material 3) vomiting of undigested food ...
... sucralfate 7. The gastric outlet obstruction is most characterized by: 1) vomiting of bile-containing material 3) vomiting of undigested food ...
Cardiac Cycle - Bourbon County Schools
... Blood flows into atria from veins. (ventricles are contracting, atria are filling) Heart sound: LUBB ...
... Blood flows into atria from veins. (ventricles are contracting, atria are filling) Heart sound: LUBB ...
VT IN ABSENCE OF STRUCTURAL HEART DISEASE BY DR
... calcium during diastole. • This activates sodium-calcium exchanger that extrudes calcium ions out from the cell. • This generates a net inward current results in DAD. • When large enough, DADs trigger extrasystolic action potential. ...
... calcium during diastole. • This activates sodium-calcium exchanger that extrudes calcium ions out from the cell. • This generates a net inward current results in DAD. • When large enough, DADs trigger extrasystolic action potential. ...
Third and fourth heart sounds had low sensitivity but moderate to
... studies of physical exam findings. While the importance of these physical exam findings has been taught for decades, no study has determined their sensitivity and specificity using reproducible methods. Most studies rely on human detection, which is often variable and usually in the context of highl ...
... studies of physical exam findings. While the importance of these physical exam findings has been taught for decades, no study has determined their sensitivity and specificity using reproducible methods. Most studies rely on human detection, which is often variable and usually in the context of highl ...
Bradycardia - MBBS Students Club
... • A moderate alternating-current voltage applied directly to the ventricles throws the ventricles into fibrillation, a strong high voltage alternating electrical current passed through the ventricles for a fraction of a second can stop fibrillation by throwing all the ventricular muscle to refracto ...
... • A moderate alternating-current voltage applied directly to the ventricles throws the ventricles into fibrillation, a strong high voltage alternating electrical current passed through the ventricles for a fraction of a second can stop fibrillation by throwing all the ventricular muscle to refracto ...
Goes the Heart- Atrial Fibrillation
... The causes of atrial fibrillation are still mostly unknown to doctors and researchers; however it is thought that a genetic component may be present. Atrial fibrillation can be cause by the electrical pathways in the heart altering, causing the many impulses to ‘fight’ for a passage through the AVN; ...
... The causes of atrial fibrillation are still mostly unknown to doctors and researchers; however it is thought that a genetic component may be present. Atrial fibrillation can be cause by the electrical pathways in the heart altering, causing the many impulses to ‘fight’ for a passage through the AVN; ...
Brugada`s Syndrome
... Most common in people from Asia. In Asia it is the most common cause of natural death in men younger than 50. approximately 30:100,000. It is 8-10x more prevalent in men. Most commonly affects men between 30-50 who are other-wise healthy. The mean age of sudden death is 41 years old. An estimated 4% ...
... Most common in people from Asia. In Asia it is the most common cause of natural death in men younger than 50. approximately 30:100,000. It is 8-10x more prevalent in men. Most commonly affects men between 30-50 who are other-wise healthy. The mean age of sudden death is 41 years old. An estimated 4% ...
S0735109713040023_mmc1
... basolateral electrode were used for LVP and BiVP. All measurements were performed during right atrial pacing at approximately 10 bpm above intrinsic heart rate (baseline) and during atrial paced LVP and BiVP with the same heart rate and short AV delay ensuring full ventricular capture as noticed on ...
... basolateral electrode were used for LVP and BiVP. All measurements were performed during right atrial pacing at approximately 10 bpm above intrinsic heart rate (baseline) and during atrial paced LVP and BiVP with the same heart rate and short AV delay ensuring full ventricular capture as noticed on ...
VAD - Real-time Flow in the Management of Acute Right Ventricular
... By enabling the monitoring of the left ventricular preload and contractility throughout the post-operative period, Transonic® real-time flow measurement proved to be a useful tool both for the diagnosis and the management of right heart failure, including weaning from ECMO. It was a reliable alterna ...
... By enabling the monitoring of the left ventricular preload and contractility throughout the post-operative period, Transonic® real-time flow measurement proved to be a useful tool both for the diagnosis and the management of right heart failure, including weaning from ECMO. It was a reliable alterna ...
ECG NOTES
... • Atrial rate is too fast to count and individual P waves may be difficult to identify. Normal QRS complexes appear at irregular intervals. There will be many more P waves than QRS complexes. May cause blood clots to form and be sent to the brain, heart or lungs. ...
... • Atrial rate is too fast to count and individual P waves may be difficult to identify. Normal QRS complexes appear at irregular intervals. There will be many more P waves than QRS complexes. May cause blood clots to form and be sent to the brain, heart or lungs. ...
CHAP 20c - Dr. Gerry Cronin
... • The cardiac reserve is the difference between the CO at rest and the maximum CO the heart can generate. • Average cardiac reserve is 4-5 times resting value. ...
... • The cardiac reserve is the difference between the CO at rest and the maximum CO the heart can generate. • Average cardiac reserve is 4-5 times resting value. ...
The Heart Beat The heart beat is caused by impulses arising from
... There are several distinct stages which form a full heart beat. Cardiac Systole describes the period at which the heart contracts and cardiac diastole describes the period of relaxation, between beats. They can however be further divided into diastole and systole of the atria and ventricles. The pha ...
... There are several distinct stages which form a full heart beat. Cardiac Systole describes the period at which the heart contracts and cardiac diastole describes the period of relaxation, between beats. They can however be further divided into diastole and systole of the atria and ventricles. The pha ...
Bio211 Lecture 1
... – Diversion by congenital defects, e.g., patent foramen ovale – Heart must work harder and re-pump blood ...
... – Diversion by congenital defects, e.g., patent foramen ovale – Heart must work harder and re-pump blood ...
A1985ABD9400001
... trials2 3of vasodilators in acute myocardial infarction, ’ It became an important, frequently cited study because it was innovative and introduced the new concept into clinical practice that perfor. mance of the failing heart could be favorably manipulated by intervening peripherally to the heart, I ...
... trials2 3of vasodilators in acute myocardial infarction, ’ It became an important, frequently cited study because it was innovative and introduced the new concept into clinical practice that perfor. mance of the failing heart could be favorably manipulated by intervening peripherally to the heart, I ...
Spatiotemporal evolution of ventricular fibrillation
... using a peak cross-correlation method as shown in Fig. 2, based on the rationale that repeating patterns of activity would have higher peak cross-correlations. Ventricular fibrillation was induced with a single critically timed electrical pulse (S2), applied after a constant pacing train (of S1 puls ...
... using a peak cross-correlation method as shown in Fig. 2, based on the rationale that repeating patterns of activity would have higher peak cross-correlations. Ventricular fibrillation was induced with a single critically timed electrical pulse (S2), applied after a constant pacing train (of S1 puls ...
CHF (Handout, B. Shah, 2005)
... is a substance released in response to high ventricular filling and elevated values have been shown to coorelate with CHF. N Engl J Med 2002 Jul 18;347(3):161-7. ECG- Although any new finding for a patient with new CHF could lead the underlying cause, in most patients it is important to look for evi ...
... is a substance released in response to high ventricular filling and elevated values have been shown to coorelate with CHF. N Engl J Med 2002 Jul 18;347(3):161-7. ECG- Although any new finding for a patient with new CHF could lead the underlying cause, in most patients it is important to look for evi ...
Ventricular fibrillation
Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole (""flatline""). This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death (SCD) will result in a matter of minutes. If the patient is not revived after a sufficient period (within roughly 5 minutes at room temperature), the patient could sustain irreversible brain damage and possibly become brain-dead, due to the effects of cerebral hypoxia. On the other hand, death often occurs if sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.