block

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Related to First degree heart block: Second degree heart block, Third degree heart block

Block

A segment of a town or city surrounded by streets and avenues on at least three sides and usually occupied by buildings, though it may be composed solely of vacant lots. The section of a city enclosed by streets that is described by a map which indicates how a portion of land will be subdivided.

block

verb arrest, avert, ban, bar, barricade, blockade, bridle, check, choke, clog, close, cohibit, constrict, cramp, curb, dam, debar, delay, encumber, estop, exclude, fend off, forbid, foreclose, frustrate, halt, hamper, hinder, hobble, intercept, interdict, interfere with, jam, leave out, limit, obstruct, occlude, oppose, parry, plug up, preclude, prevent, prohibit, proscribe, repulse, restrain, restrict, retard, shut off, shut up, snag, stall, stand in the way, stay, stem, stop, stop up, thwart, trammel, wall up
See also: arrest, balk, ban, bar, barrier, bind, blockade, bulk, censorship, check, clog, condemn, constrain, constrict, contain, damper, deadlock, debar, defeat, delay, deter, deterrence, deterrent, disadvantage, disqualify, encumber, enjoin, exclude, forbid, halt, hamper, hinder, hold up, impasse, impede, impediment, inhibit, interdict, interfere, interpose, interruption, keep, kill, land, limitation, lock, obstacle, obstruct, obstruction, obturate, occlude, oppose, parcel, parry, plot, preclude, prevent, procrastinate, prohibit, prohibition, real estate, resist, restrain, section, shut, stall, stave, stay, stem, stifle, stop, strangle, toll, vicinity, withhold, withstand
References in periodicals archive ?
The most common arrhythmia was found to be Supra ventricular tachycardia (SVT) 126 (44%), followed by premature ventricular contractions (PVCs) 80 (28%), early repolarization 34 (11.9%), Atrial fibrillation (AF) 25(8.7%), first degree heart block 15(5.2%),inappropriate sinus tachycardia (IST) 6 (2.1%).
First degree heart block is a simple prolonging of the PR interval beyond the normals for age (see Figure 7).
First Degree Heart Block: Persons with PR intervals more than 0.20 sec were considered having first degree heart block.