(a.) Reentering; pointing or directed inwardds; as, a re/ntrant angle.
Example Sentences:
(1) During electrophysiologic study, the effect of propafenone on the effective refractory period of the accessory pathway was determined, as well as its effect during orthodromic atrioventricular (AV) reentrant tachycardia and atrial fibrillation.
(2) The electrophysiologic studies of three patients with accessory pathways and multiple reentrant circuits are reported.
(3) In 2 pts, reentrant beats conducted on the FP antegradely and on SP retrogradely.
(4) It is possible that such action potentials are responsible for the reentrant and automatic arrhythmias which occur in association with clinical cardiac disease.
(5) Intravenous flecainide was successful in terminating ongoing tachycardias in 81% of reported cases of atrioventricular (AV) nodal reentrant tachycardias, 88% of AV reentrant tachycardias and 100% of atrial tachycardias.
(6) The effect of the autonomic system on conduction disorders in the infarction zone (IZ) and related reentrant ventricular arrhythmias (RVA) in the late myocardial infarction period in the dog was studied utilizing averaged recordings of the reentrant pathways from the epicardial surface of the IZ.
(7) The purpose of this study was to investigate the role of tissue anisotropy and dispersion of refractoriness on initiation of reentrant ventricular tachycardia (VT).
(8) In two dogs, the reentrant circuit was located intramurally in close proximity to a patchy septal infarction.
(9) The experiments performed on two wethers provided with simple rumen cannulas and reentrant cannulas, inserted into the proximal duodenum and ileum, showed a passage of 15N from labelled urea, injected intravenously, from the blood to the digestive tract.
(10) The time dependence of nonuniform propagation and the relatively high conduction velocities explain two major characteristics of reentrant tachycardias in acute ischemia: the large diameters of reentrant circuits and the beat-to-beat changes in localization of conduction block.
(11) The ablated pathway was the His bundle in 8 patients, an accessory pathway in 3 patients and a ventricular reentrant circuit in 1 patient.
(12) All 20 patients (100%) with AV node reentrant tachycardia treated with diltiazem had conversion of tachycardia to sinus rhythm as did 26 (81%) of 30 patients with AV reciprocating tachycardia treated with diltiazem.
(13) The electrophysiological effects of antiarrhythmic drugs were tested in 36 patients with recurrent paroxysmal supraventricular tachycardia (PSVT), 25 of whom had accessory pathway reentrant tachycardia (APRT) and 11 A-V nodal reentrant tachycardia (AVNRT; 10 of the slow-fast type one of the fast-slow type).
(14) Patients with atrioventricular nodal reentrant tachycardia were deduced to have simultaneous atrial and ventricular activation when no atrial signal could be seen elsewhere in the cycle.
(15) The patient has neither reentrant tachycardias nor atrial fibrillation episodes.
(16) Paroxysms cease when the conducting properties of the reentrant circuits are disturbed by changes in autonomic tone or the application of certain drugs, pacing, or cardioversion.
(17) Three out of 11 patients with atrioventricular nodal reentrant tachycardia (AVNRT) had VA values greater than or equal to 70 msec, while 5 of 28 patients with orthodromic reciprocating tachycardia (ORT) had values less than or equal to 70 msec.
(18) Low current, high frequency trains of stimuli, when applied at a site presumed to be close to the reentrant circuit, provided a safe and effective method of terminating the common type of AV node reentrant tachycardia.
(19) The two cases suggest the following conclusions: (1) dual A-V nodal pathways may allow the occurrence of double antegrade conduction of one P; (2) the atria are not necessary for A-V nodal circus movements in "dual pathway" A-V nodal reentrant PSVT.
(20) However, the right ventricular apex electrogram demonstrated a constant morphology with a decrease in cycle length equal to that of the other intracardiac electrograms, indicating a constant direction of activation from the ventricular tachycardia circuit, and that ventricular tachycardia had been transiently entrained by AV nodal reentrant tachycardia.
Thread
Definition:
(n.) A very small twist of flax, wool, cotton, silk, or other fibrous substance, drawn out to considerable length; a compound cord consisting of two or more single yarns doubled, or joined together, and twisted.
(n.) A filament, as of a flower, or of any fibrous substance, as of bark; also, a line of gold or silver.
(n.) The prominent part of the spiral of a screw or nut; the rib. See Screw, n., 1.
(n.) Fig.: Something continued in a long course or tenor; a,s the thread of life, or of a discourse.
(n.) Fig.: Composition; quality; fineness.
(v. t.) To pass a thread through the eye of; as, to thread a needle.
(v. t.) To pass or pierce through as a narrow way; also, to effect or make, as one's way, through or between obstacles; to thrid.
(v. t.) To form a thread, or spiral rib, on or in; as, to thread a screw or nut.
Example Sentences:
(1) Use 3-ml Luer-Lok syringes and 30-gauge needles and thread the needle carefully into the vessel while using slow and steady injection with light pressure.
(2) No infection threads were found to penetrate either root hairs or the nodule cells.
(3) When using a nylon thread for the attachment of a pseudophakos to the iris, it may happen that the suture is slung tightly around the implant-lens.
(4) This thread ran through his later writings, which focused particularly on questions of the transformation of work and working time, envisaging the possibility that the productivity gains made possible by capitalism could be used to enhance individual and social life, rather than intensifying ruthless economic competition and social division.
(5) Santi Cazorla, Sánchez and Mesut Özil were all involved, and when the ball came back to Cazorla he made a fine threaded pass to Walcott.
(6) We've brought on two experts to answer your questions from 1-2pm BST in the comment thread on this article.
(7) The astrocytes had generally two types of processes: (1) thread-like processes of relatively constant width with few ramifications and few lamellar appendages and (2) the sinuous processes with clusters of lamellar appendages.
(8) Electron microscopy showed the presence of bacterial ghosts and protein threads.
(9) George RR Martin , whose series of novels inspired the HBO drama , has woven a tapestry of extraordinary size and richness; and most of the threads he has used derive from the history of our own world.
(10) The left anterior descending coronary artery of dogs and the right common carotid artery of rabbits were subjected to partial constriction with suture thread (40-60% reduction in transluminal diameter).
(11) Neuronal thread protein is a recently characterized, approximately 20-kd protein that accumulates in brains with Alzheimer's disease (AD) lesions.
(12) Small threaded pins do not cause femoral head rotation.
(13) Nematocyst capsules and everted threads from both species contained levels of glycine and proline-hydroxyproline characteristic of vertebrate collagens.
(14) Load transfer from ring to bone is concentrated at the first and last threads where the subchondral bone layer is penetrated.
(15) Furthermore, large numbers of neuropil threads are scattered throughout the nuclear gray.
(16) The histological findings of actinomyces spores, thread-like foreign material and detritus drew out attention to the rare manifestation of abdominal actinomycosis.
(17) Monofilament nylon threads are used as drains in free skin grafting; 2-0 or 3-0 nylon threads are usually applied.
(18) Monoclonal antibodies, raised independently in two laboratories against either pancreatic stone protein (PSP) or pancreatic thread protein (PTP), reacted with the Mr 14,000 protein(s).
(19) With the initial technique, the gastrostomy tube was pulled in by a thread introduced percutaneously into the stomach.
(20) P19 gave by proteolysis a protein of 14 KD (P14), at first named protein X and also called pancreatic thread protein or pancreatic stone protein.