The P-Wave - Journal of the Advanced Practitioner in Oncology
... from P-waves (atrial rate). Assess regularity of R-R interval Look for P-waves before EACH QRS. Are they “married to each other”? If intermittently present, mark. Assess PR interval in EACH complex, observing for variations in P-waves, or length of interval. Normal is 0.12–0.20 sec [3–5 small boxes] ...
... from P-waves (atrial rate). Assess regularity of R-R interval Look for P-waves before EACH QRS. Are they “married to each other”? If intermittently present, mark. Assess PR interval in EACH complex, observing for variations in P-waves, or length of interval. Normal is 0.12–0.20 sec [3–5 small boxes] ...
studies of cardio-regulation in the cockroach, periplaneta americana
... in the pathway from the connective to the recording site this would constitute an apparent conduction velocity of about 0-74 m/s. Although with repeated stimulation it was found that the latencies of these large potentials were not consistent (Text-fig. 46) in this preparation, in other preparations ...
... in the pathway from the connective to the recording site this would constitute an apparent conduction velocity of about 0-74 m/s. Although with repeated stimulation it was found that the latencies of these large potentials were not consistent (Text-fig. 46) in this preparation, in other preparations ...
Dr Dhiraj Gupta
... to their staff nationally. I am also member of the Medical Advisory Committee of the national charity, AF Association. I have been elected to the Council of British Heart Rhythm Society in Oct 2015 for a term of three years, and as a council member I help shape national guidelines and policies relat ...
... to their staff nationally. I am also member of the Medical Advisory Committee of the national charity, AF Association. I have been elected to the Council of British Heart Rhythm Society in Oct 2015 for a term of three years, and as a council member I help shape national guidelines and policies relat ...
Competing Risk of Cardiac Status and Renal Function During
... METHODS This study was an individual patient data analysis assembled from 6 prospective cohorts consisting of 1,232 patients hospitalized for ADHF. Endpoints were all-cause mortality and the composite of all-cause mortality and/or readmission for a cardiovascular reason within 180 days after dischar ...
... METHODS This study was an individual patient data analysis assembled from 6 prospective cohorts consisting of 1,232 patients hospitalized for ADHF. Endpoints were all-cause mortality and the composite of all-cause mortality and/or readmission for a cardiovascular reason within 180 days after dischar ...
Optical mapping of activation patterns in an animal - AJP
... Amplified signals were multiplexed and analog to digital converted and transferred to a Pentium computer (Dimension XPS-T550, Dell Computers; Round Rock, TX). Data were filtered at a band-pass range of 0.05–1,000 Hz. Because optical signals cannot be monitored continuously and because the occurrence ...
... Amplified signals were multiplexed and analog to digital converted and transferred to a Pentium computer (Dimension XPS-T550, Dell Computers; Round Rock, TX). Data were filtered at a band-pass range of 0.05–1,000 Hz. Because optical signals cannot be monitored continuously and because the occurrence ...
Cardiac Amyloidosis
... down to form amyloid deposits in various tissues of the body. About 2000 to 3000 new cases of AL amyloidosis occur each year in the United States, two thirds of these patients are male, and almost all of them are over the age of 50 (although the disease occasionally occurs in younger patients). AL a ...
... down to form amyloid deposits in various tissues of the body. About 2000 to 3000 new cases of AL amyloidosis occur each year in the United States, two thirds of these patients are male, and almost all of them are over the age of 50 (although the disease occasionally occurs in younger patients). AL a ...
Co-prevalence of Carotid Stenosis with Coronary Artery Disease in
... by receiver operator characteristic curve analyses, the area under the curve for max-IMT was higher than that for mean-IMT(0.73 vs. 0.64). 30 In type 2 diabetic patients without apparent cardiovascular disease, the addition of max-IMT to conventional risk factors substantially improves the risk stra ...
... by receiver operator characteristic curve analyses, the area under the curve for max-IMT was higher than that for mean-IMT(0.73 vs. 0.64). 30 In type 2 diabetic patients without apparent cardiovascular disease, the addition of max-IMT to conventional risk factors substantially improves the risk stra ...
Improved Systolic Ventricular Function With Normal - J
... clinical signs of heart failure such as labored respiration, pleural and/or pericardial effusion, left atrial thrombi, or right ventricular hypertrophy.3,17) In rats, gradual aortic constriction for eight weeks has been reported to produce stable LV hypertrophy.21) Although left ventricular hypertro ...
... clinical signs of heart failure such as labored respiration, pleural and/or pericardial effusion, left atrial thrombi, or right ventricular hypertrophy.3,17) In rats, gradual aortic constriction for eight weeks has been reported to produce stable LV hypertrophy.21) Although left ventricular hypertro ...
Left ventricular endocardial longitudinal and transverse - AJP
... were time related to each phase of the cardiac cycle defined from the aortic and LV pressure curves. The end of diastole was defined as the point of increasing LV pressure trace (dP/dt ⬎ 0). The end of IVC was defined as the beginning of ejection at the crossing point of the LV and aortic pressure c ...
... were time related to each phase of the cardiac cycle defined from the aortic and LV pressure curves. The end of diastole was defined as the point of increasing LV pressure trace (dP/dt ⬎ 0). The end of IVC was defined as the beginning of ejection at the crossing point of the LV and aortic pressure c ...
Case Report Feminizing Adrenal Carcinoma Presenting with Heart
... The possible contribution of other adrenal hormones to our patient’s cardiomyopathy cannot be ruled out. It is possible that cortisol excess, as demonstrated by an abnormal result on 1 mg dexamethasone suppression testing, as well as a suppressed plasma ACTH level, was a factor in his cardiac presen ...
... The possible contribution of other adrenal hormones to our patient’s cardiomyopathy cannot be ruled out. It is possible that cortisol excess, as demonstrated by an abnormal result on 1 mg dexamethasone suppression testing, as well as a suppressed plasma ACTH level, was a factor in his cardiac presen ...
Right ventricular cardiac myxoma. Histopathology diagnosis in
... Right atrial myxomas may mimic constrictive pericarditis by producing functional stenosis of the tricuspid valve, with increased right atrial pressure [35,36,39]. Ventricular myxomas may mimic stenosis of the aortic or pulmonic valve because of the narrowing of the left or right ventricular outflow ...
... Right atrial myxomas may mimic constrictive pericarditis by producing functional stenosis of the tricuspid valve, with increased right atrial pressure [35,36,39]. Ventricular myxomas may mimic stenosis of the aortic or pulmonic valve because of the narrowing of the left or right ventricular outflow ...
Trying to succeed when the right ventricle fails
... independent predictor of short and long-term survival in chronic LV systolic failure [10,15–18]. In studies [10,16,18] of selected patients with ischemic or nonischemic cardiomyopathy, RV dysfunction, usually defined by right ventricular ejection fraction (RVEF) of less than 0.35, has been observed ...
... independent predictor of short and long-term survival in chronic LV systolic failure [10,15–18]. In studies [10,16,18] of selected patients with ischemic or nonischemic cardiomyopathy, RV dysfunction, usually defined by right ventricular ejection fraction (RVEF) of less than 0.35, has been observed ...
The Contribution of Doppler Echocardiography to the Assessment of
... wave peak of the TDI signal is related to ischemia.34 Successful differential diagnosis between ischemic or dilated cardiomyopathy is of paramount importance, more so when left bundle branch block exists. The LV long axis function assessment has recently been found to contribute in such cases. Speci ...
... wave peak of the TDI signal is related to ischemia.34 Successful differential diagnosis between ischemic or dilated cardiomyopathy is of paramount importance, more so when left bundle branch block exists. The LV long axis function assessment has recently been found to contribute in such cases. Speci ...
Implantable Cardioverter Defibrillator
... 2. Documented sustained ventricular tachyarrhythmia (VT), either spontaneous or induced by an electrophysiology (EP) study, not associated with an acute myocardial infarction (MI) and not due to a transient or reversible cause. 3. Documented familial or inherited conditions with a high risk of life- ...
... 2. Documented sustained ventricular tachyarrhythmia (VT), either spontaneous or induced by an electrophysiology (EP) study, not associated with an acute myocardial infarction (MI) and not due to a transient or reversible cause. 3. Documented familial or inherited conditions with a high risk of life- ...
Heart rate variability: a review | SpringerLink
... results of spectral analysis of BP and HR data. The baroreflex equation of the model describe the data only in the region of respiratory frequencies. The shape of the phase spectrum of systolic pressures against intervals was modeled by difference equations. But no physiological interpretation of th ...
... results of spectral analysis of BP and HR data. The baroreflex equation of the model describe the data only in the region of respiratory frequencies. The shape of the phase spectrum of systolic pressures against intervals was modeled by difference equations. But no physiological interpretation of th ...
The Heart Rate-Corrected QT Interval of
... equation log (QTJ = log (QT - P*[\og(HR) - \og(HRJ], where HRm is the reference heart rate. QTa (in seconds) is obtained by the inverse log function. HRm has no effect on statistical analysis, so any convenient value can be used. Bazett's and Fridencia's equation both set HRm = 60 bpm. When /3 has b ...
... equation log (QTJ = log (QT - P*[\og(HR) - \og(HRJ], where HRm is the reference heart rate. QTa (in seconds) is obtained by the inverse log function. HRm has no effect on statistical analysis, so any convenient value can be used. Bazett's and Fridencia's equation both set HRm = 60 bpm. When /3 has b ...
Endocardial endothelium in the avascular frog heart - AJP
... myocardial contractility (3, 24). Our studies examined the role of eNOS in hearts both with and without an intact EE. Activity of eNOS in hearts without an EE was, however, greatly decreased. Thus it seems that an intact EE is necessary for the proper function of eNOS. The ability of NO to diffuse a ...
... myocardial contractility (3, 24). Our studies examined the role of eNOS in hearts both with and without an intact EE. Activity of eNOS in hearts without an EE was, however, greatly decreased. Thus it seems that an intact EE is necessary for the proper function of eNOS. The ability of NO to diffuse a ...
1. CS .Note the characteristic ECG sign of sinus bradycardia A . PQ
... C. Organic lesion His-Purkinje system D. Pausing the electrical activity of sinus node E. Impulses are conducted retrograde from the ventricles to the atria 48. CS. Third degree atrioventricular block electrocardiographically is manifested by A. atrial contractions and ventricular ratio is 3:1 B. at ...
... C. Organic lesion His-Purkinje system D. Pausing the electrical activity of sinus node E. Impulses are conducted retrograde from the ventricles to the atria 48. CS. Third degree atrioventricular block electrocardiographically is manifested by A. atrial contractions and ventricular ratio is 3:1 B. at ...
1. CS .Note the characteristic ECG sign of sinus bradycardia A . PQ
... C. Organic lesion His-Purkinje system D. Pausing the electrical activity of sinus node E. Impulses are conducted retrograde from the ventricles to the atria 48. CS. Third degree atrioventricular block electrocardiographically is manifested by A. atrial contractions and ventricular ratio is 3:1 B. at ...
... C. Organic lesion His-Purkinje system D. Pausing the electrical activity of sinus node E. Impulses are conducted retrograde from the ventricles to the atria 48. CS. Third degree atrioventricular block electrocardiographically is manifested by A. atrial contractions and ventricular ratio is 3:1 B. at ...
Early trabeculation and closure of the interventricular foramen in
... In the present study the ventricular trabeculation was found in all embryos at stage 13 (the beginning of the 5th week). This is in accordance with descriptions of O’Rahilly and Müller [26]. It has to be pointed out that the trabeculations in the left ventricle are thicker and the centripetal growth ...
... In the present study the ventricular trabeculation was found in all embryos at stage 13 (the beginning of the 5th week). This is in accordance with descriptions of O’Rahilly and Müller [26]. It has to be pointed out that the trabeculations in the left ventricle are thicker and the centripetal growth ...
Cardiac surgery
Cardiovascular (heart) surgery is surgery on the heart or great vessels performed by cardiac surgeons. Frequently, it is done to treat complications of ischemic heart disease (for example, coronary artery bypass grafting), correct congenital heart disease, or treat valvular heart disease from various causes including endocarditis, rheumatic heart disease and atherosclerosis. It also includes heart transplantation.