Block

(redirected from first-degree atrioventricular block)
Also found in: Dictionary, Thesaurus, Medical, Financial, Encyclopedia, Wikipedia.
Related to first-degree atrioventricular block: Third degree AV block, Second degree AV 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.

West's Encyclopedia of American Law, edition 2. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The bradycardias reported have included sinus bradycardia, sinus arrest, nodal and junctional rhythms, sick sinus syndrome, and all degrees of atrioventricular block.[1,3,7,8,11,18-20] Our patient showed only sinus bradycardia and first-degree atrioventricular block. Some patients were asymptomatic, whereas others experienced symptoms of syncope,[3,7,19] weakness and dizziness,[3,19] fatigue with ambulation,[20] and palpitations.[3] Our patient's fatigue during physical therapy resolved after clonidine was discontinued.
For technical reasons this did not result in complete severance, but did result in first-degree atrioventricular block, which was considered sufficient.