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[State of intracardiac hemodynamics in patients with sick sinus syndrome during cardiac pacing]. 1993

A V Foniakin, and V Iu Satrapinskiĭ, and V F Gordeev

A EKS-500 pacemaker was implanted in 36 patients with the sick sinus syndrome. Out of them, 18 patients had coronary heart disease, 6, hypertensive disease and myocardial hypertrophy, and 12, idiopathic arrhythmias. After surgery, equilibrium radionuclide ventriculography was performed in the patients at rest in the presence of spontaneous rhythm and pacing, as well as during exercise. In patients with idiopathic arrhythmias, cardiac output and index remained within normal ranges during sinus bradycardia, which was attained by increased stroke volume, whereas in patients with myocardial disease, the normal values of these parameters were recorded only at a rate 60 imp/min. During exercise, the patients with idiopathic arrhythmias showed a noticeable rise in cardiac output not only due to higher heart rate, but due to increased stroke volume, and those with myocardial disease displayed the increase only due to higher heart rate.

UI MeSH Term Description Entries
D006973 Hypertension Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more. Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010138 Pacemaker, Artificial A device designed to stimulate, by electric impulses, contraction of the heart muscles. It may be temporary (external) or permanent (internal or internal-external). Cardiac Pacemaker, Artificial,Artificial Cardiac Pacemaker,Artificial Cardiac Pacemakers,Artificial Pacemaker,Artificial Pacemakers,Cardiac Pacemakers, Artificial,Pacemaker, Artificial Cardiac,Pacemakers, Artificial,Pacemakers, Artificial Cardiac
D002312 Cardiomyopathy, Hypertrophic A form of CARDIAC MUSCLE disease, characterized by left and/or right ventricular hypertrophy (HYPERTROPHY, LEFT VENTRICULAR; HYPERTROPHY, RIGHT VENTRICULAR), frequent asymmetrical involvement of the HEART SEPTUM, and normal or reduced left ventricular volume. Risk factors include HYPERTENSION; AORTIC STENOSIS; and gene MUTATION; (FAMILIAL HYPERTROPHIC CARDIOMYOPATHY). Cardiomyopathy, Hypertrophic Obstructive,Cardiomyopathies, Hypertrophic,Cardiomyopathies, Hypertrophic Obstructive,Hypertrophic Cardiomyopathies,Hypertrophic Cardiomyopathy,Hypertrophic Obstructive Cardiomyopathies,Hypertrophic Obstructive Cardiomyopathy,Obstructive Cardiomyopathies, Hypertrophic,Obstructive Cardiomyopathy, Hypertrophic
D003327 Coronary Disease An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels. Coronary Heart Disease,Coronary Diseases,Coronary Heart Diseases,Disease, Coronary,Disease, Coronary Heart,Diseases, Coronary,Diseases, Coronary Heart,Heart Disease, Coronary,Heart Diseases, Coronary
D005260 Female Females
D006321 Heart The hollow, muscular organ that maintains the circulation of the blood. Hearts
D006339 Heart Rate The number of times the HEART VENTRICLES contract per unit of time, usually per minute. Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse
D006439 Hemodynamics The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM. Hemodynamic

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