What's the difference between cardiac and myocardium?

Cardiac


Definition:

  • (a.) Pertaining to, resembling, or hear the heart; as, the cardiac arteries; the cardiac, or left, end of the stomach.
  • (a.) Exciting action in the heart, through the medium of the stomach; cordial; stimulant.
  • (n.) A medicine which excites action in the stomach; a cardial.

Example Sentences:

  • (1) This trend appeared to reverse itself in the low dose animals after 3 hr, whereas in the high dose group, cardiac output continued to decline.
  • (2) The newborn with critical AS typically presents with severe cardiac failure and the infant with moderate failure, whereas children may be asymptomatic.
  • (3) In cardiac tissue the adenylate system is not a good indicator of the energy state of the mitochondrion, even when the concentrations of AMP and free cytosolic ADP are calculated from the adenylate kinase and creatine kinase equilibria.
  • (4) Changes in cardiac adenosine triphosphate (ATP), phosphocreatine (PCr) and inorganic phosphate (Pi) were followed and intracellular pH (pHi) was estimated from the chemical shift of Pi.
  • (5) The origin of the aorta and pulmonary artery from the right ventricle is a complicated and little studied congenital cardiac malformation.
  • (6) The strongest predictor of non-sudden cardiac death was the New York Heart Association functional class.
  • (7) Cor triatriatum (CT) is a rare congenital defect, surgically correctable, and sometimes difficult to diagnose by cardiac catheterization.
  • (8) Radioligand binding studies revealed the presence of a single class of high-affinity (Kd = 2-6 X 10(-10) M) binding sites for ET-1 in both cells, although the maximal binding capacity of cardiac receptor was about 6- to 12-fold greater than that of vascular receptor.
  • (9) Using multiple regression, a linear correlation was established between the cardiac index and the arterial-venous pH and PCO2 differences throughout shock and resuscitation (r2 = .91).
  • (10) One patient with a large fistula angiographically had no oximetric evidence of shunt at cardiac catheterization.
  • (11) Only the approximately 2.7 kb mRNA species was visualized in Northern blots of total cellular and poly(A+) RNA isolated from cardiac ventricular muscle.
  • (12) External phonocardiography performed at the time of cardiac catheterization revealed that this loud midsystolic click disappeared whenever a catheter was positioned across the mitral valve.
  • (13) No differences in cardiac output were noted in surviving animals.
  • (14) Diphenoxylate-induced hypoxia was the major problem and was associated with slow or fast respirations, hypotonia or rigidity, cardiac arrest, and in 3 cases cerebral edema and death.
  • (15) Results showed significantly higher cardiac output in infants with grade III shunting than in infants with grade 0 and grade I shunting.
  • (16) This doxorubicin derivative did not bind to Sepharose which was conjugated with cardiac actin.
  • (17) Infusion of sodium lactate associated with isoproterenol could be used to combat the depressent effects of betablockers in patients with cardiac disorders.
  • (18) The highest antishock effect of dopamine is reached when cardiac output fraction addressed to thoracic region vitals is supported by dopamine on the 43-45% level.
  • (19) Hypercalcitoninemia was the most pronounced in patients with cardiac rhythm disorders and a simultaneous reduction in total serum calcium.
  • (20) Eight other children (20%) had normal or borderline elevation of CPK-MB fraction and EKG abnormalities combined with abnormal echocardiograms or radionuclide angiograms, and were considered to have sustained cardiac concussion.

Myocardium


Definition:

  • (n.) The main substance of the muscular wall of the heart inclosed between the epicardium and endocardium.

Example Sentences:

  • (1) The acute effect of alcohol manifested itself by decreasing mitochondrial respiration, compensated by increased glycolytic activity of the myocardium so that myocardial energy phosphate concentration remained unchanged.
  • (2) The myocardium was assumed to be composed of a nonlinear viscoelastic, inhomogeneous, anisotropic (transversely isotropic) and incompressible material operating under adiabatic and isothermal conditions.
  • (3) Comparison with 99Tc-pyrophosphate uptake in infarcted dog heart, induced by selective obstruction of a coronary artery, suggest that the 111In-labelled F(ab')2 localizes specifically in infarcted myocardium only.
  • (4) By means of rapid planar Hill type antimony-bismuth thermophiles the initial heat liberated by papillary muscles was measured synchronously with developed tension for control (C), pressure-overload (GOP), and hypothyrotic (PTU) rat myocardium (chronic experiments) and after application of 10(-6) M isoproterenol or 200 10(-6) M UDCG-115.
  • (5) Distant ischemia was distinguished from peri-infarctional ischemia by the presence of transient thallium defects in, or slow thallium washout from myocardium not supplied by the infarct-related coronary artery.
  • (6) Administration of one of the precursors of noradrenaline l-DOPA not only prevented the decrease in tissue noradrenaline content in myocardium, but restored completely its reserves, exhausted by electrostimulation of the aortic arch.
  • (7) The terms of maximum reduction of the enzymatic activity falling within the 4th-6th and 24th hours and 2nd day should be taken into account while developing the methods of metabolic protection and enzyme therapy of the ischaemic myocardium.
  • (8) Previous studies have reported that the numbers of beta- and alpha-adrenergic receptors increase in ischemic myocardium.
  • (9) With a series of 117 aortic valve replacements, the authors have examined the results in relation to the method of protecting the myocardium while the aorta is clamped off.
  • (10) Acute transmural myocardial infarction has been reported to functionally denervate the normal myocardium distal to the infarcted zone by interrupting neurotransmission in axons coursing in the subepicardial region of the myocardial necrosis.
  • (11) Defects of mitochondrial DNA have been found at necropsy in the myocardium of patients with Kearns-Sayre syndrome.
  • (12) Little anatomic information is available on the annular myocardium.
  • (13) Dietary fat can modify the vulnerability of the myocardium to arrhythmic stimuli.
  • (14) Isotonically, peak muscle shortening was reduced in the left muscle, whereas time to peak shortening was prolonged in the right myocardium.
  • (15) The maximum functional response of catecholamine injured hearts to stimulation of alpha- and beta-adrenoceptors reduced in both age groups, while the sensitivity of the myocardium to beta-adrenoceptor agonists in mature rats increased.
  • (16) Complex treatment with inclusion of thymalin resulted in an increase of the thymic factor, normalization of the lipid metabolism increase of the contractile function of the myocardium and, thus, increases the treatment efficacy.
  • (17) Under a dissecting microscope the vascular casts revealed direct communications from the skeletal muscle which penetrated deeply into the myocardium.
  • (18) When the same dose of ISO was administered to rats with aortic constriction the rise in labelled Ca uptake by the hypertrophied myocardium of the left ventricle was greatly reduced.
  • (19) Thus, small doses of thyroid hormones restrict significantly stress induced activity of LP membranes, increasing the power of antioxidant systems both in the myocardium and in the organism.
  • (20) The constrictor may be used for studies on the development of collaterals as well as on therapeutic measures in chronic ischemia of the myocardium.